import asyncio
import base64
import importlib
import io
import logging
import os
from datetime import datetime
import gradio as gr
import httpx
from PIL import Image
import config
importlib.reload(config)
from config import CONFIG, get_api_headers, get_api_url
from models import (
    TaskSubmission, ImageToImageSubmission, PhotoStyleSubmission,
    InteriorDesignRenderingSubmission, WatermarkRemovalSubmission,
    LineArtConversionSubmission, AnimeToRealSubmission, RealToAnimeSubmission,
    ImageOutpaintingSubmission, FiveViewGenerationSubmission, Figure3DSubmission,
    CharacterFigureCollaborationSubmission
)
from examples_config import (
    TEXT_TO_IMAGE_EXAMPLES_WITH_RESULTS,
    FIVE_VIEW_GENERATION_EXAMPLES_WITH_RESULTS,
    FIGURE_3D_EXAMPLES_WITH_RESULTS,
    CHARACTER_FIGURE_COLLABORATION_EXAMPLES_WITH_RESULTS,
    IMAGE_OUTPAINTING_EXAMPLES_WITH_RESULTS,
    LINE_ART_CONVERSION_EXAMPLES_WITH_RESULTS,
    ANIME_TO_REAL_EXAMPLES_WITH_RESULTS,
    REAL_TO_ANIME_EXAMPLES_WITH_RESULTS,
    INTERIOR_DESIGN_EXAMPLES_WITH_RESULTS
)

logging.basicConfig(level=logging.INFO)
logger = logging.getLogger(__name__)
PHOTO_STYLE_DISPLAY_MAPPING = {
    "camera_movement": "📹 Camera Movement",
    "relighting": "💡 Relighting",
    "camera_zoom": "🔍 Camera Zoom",
    "product_photo": "📦 Professional Product Photography",
    "miniature": "🏠 Tilt-Shift Miniature",
    "reflection": "🪞 Reflection Addition",
    "pose_change": "🎭 Pose & Viewpoint Change"
}

def preset_key_to_display_name(preset_key: str) -> str:
    return PHOTO_STYLE_DISPLAY_MAPPING.get(preset_key, preset_key)

def display_name_to_preset_key(display_name: str) -> str:
    for key, value in PHOTO_STYLE_DISPLAY_MAPPING.items():
        if value == display_name:
            return key
    return display_name
PHOTO_STYLE_CHOICES = [
    (preset_key_to_display_name(key), key)
    for key in PHOTO_STYLE_DISPLAY_MAPPING.keys()
]
INTERIOR_DESIGN_STYLE_MAPPING = {
    "japanese_wabi_sabi": "🏯 Japanese Wabi-Sabi",
    "nordic_cozy": "🏔️ Nordic Cozy",
    "italian_luxury": "🇮🇹 Italian Luxury",
    "parisian_apartment": "🗼 Parisian Apartment"
}

def interior_style_key_to_display_name(style_key: str) -> str:
    return INTERIOR_DESIGN_STYLE_MAPPING.get(style_key, style_key)

def display_name_to_interior_style_key(display_name: str) -> str:
    for key, value in INTERIOR_DESIGN_STYLE_MAPPING.items():
        if value == display_name:
            return key
    return display_name
INTERIOR_DESIGN_STYLE_CHOICES = [
    (interior_style_key_to_display_name(key), key)
    for key in INTERIOR_DESIGN_STYLE_MAPPING.keys()
]

# 3D Figure Style Mapping
FIGURE_3D_STYLE_MAPPING = {
    "professional_lighting": "💡 Professional Lighting Scene",
    "collector_shelf": "📚 Collector's Display Scene",
    "desktop_display": "💻 Desktop Display Scene"
}

FIGURE_3D_STYLE_CHOICES = [
    (display_name, key) for key, display_name in FIGURE_3D_STYLE_MAPPING.items()
]



# ============================================================================
# Utility Functions
# ============================================================================

def pil_to_base64(pil_image: Image.Image) -> str:
    buffer = io.BytesIO()
    pil_image.save(buffer, format='PNG')
    image_data = buffer.getvalue()
    return base64.b64encode(image_data).decode('utf-8')

def resize_image_if_needed(image: Image.Image, max_size: int = 1536, min_size: int = 512) -> Image.Image:
    width, height = image.size

    # Check if resize is needed
    if max(width, height) <= max_size and min(width, height) >= min_size:
        return image

    # Calculate new dimensions
    if max(width, height) > max_size:
        ratio = max_size / max(width, height)
        new_width = int(width * ratio)
        new_height = int(height * ratio)
    else:
        ratio = min_size / min(width, height)
        new_width = int(width * ratio)
        new_height = int(height * ratio)

    return image.resize((new_width, new_height), Image.Resampling.LANCZOS)

async def submit_task_with_retry(endpoint: str, payload: dict, task_name: str, max_retries: int = 60) -> dict:
    """
    Submit task with intelligent retry mechanism for 429 errors

    Args:
        endpoint: API endpoint
        payload: Request payload
        task_name: Task name for user-friendly messages
        max_retries: Maximum retry attempts (default: 60 for 5 minutes)

    Returns:
        API response dict

    Raises:
        Exception: User-friendly error messages only
    """
    import asyncio

    base_delay = 5.0  # Start with 5 seconds
    max_delay = 30.0  # Cap at 30 seconds

    for attempt in range(max_retries + 1):
        try:
            async with httpx.AsyncClient(timeout=CONFIG.API_TIMEOUT) as client:
                response = await client.post(
                    get_api_url(endpoint),
                    json=payload,
                    headers=get_api_headers()
                )

                if response.status_code == 429:
                    if attempt < max_retries:
                        delay = min(base_delay * (1.5 ** attempt), max_delay)
                        logger.info(f"System busy, retrying {task_name} in {delay:.1f}s (attempt {attempt + 1}/{max_retries + 1})")
                        await asyncio.sleep(delay)
                        continue
                    else:
                        raise Exception("The system is currently busy, please try again later")

                elif response.status_code >= 500:
                    logger.error(f"Server error {response.status_code} for {task_name}")
                    raise Exception("Service temporarily unavailable, please try again later")

                elif response.status_code >= 400:
                    logger.error(f"Client error {response.status_code} for {task_name}")
                    raise Exception("Invalid request parameters, please check your input")

                # Success
                response.raise_for_status()
                return response.json()

        except httpx.TimeoutException:
            logger.error(f"Timeout error for {task_name}")
            raise Exception("Network timeout, please check your connection")
        except httpx.ConnectError:
            logger.error(f"Connection error for {task_name}")
            raise Exception("Unable to connect to the server, please try again later")
        except Exception as e:
            if any(msg in str(e) for msg in ["System is currently busy", "Service temporarily unavailable", "Invalid request parameters", "Network connection timeout", "Unable to connect to server"]):
                # Re-raise user-friendly messages (English messages for detection)
                raise
            else:
                # Log technical error but show user-friendly message
                logger.error(f"Unexpected error submitting {task_name}: {e}")
                raise Exception("An error occurred while submitting the task, please try again later")

    # Should never reach here
    raise Exception("The system is currently busy, please try again later")

async def submit_text_to_image_task(prompt: str, resolution: str) -> dict:
    """Submit text-to-image task to backend API with intelligent retry"""
    # Parse resolution
    width, height = 1024, 1024  # Default
    if "1024x1024" in resolution:
        width, height = 1024, 1024
    elif "1152x896" in resolution:
        width, height = 1152, 896
    elif "896x1152" in resolution:
        width, height = 896, 1152
    elif "1344x768" in resolution:
        width, height = 1344, 768
    elif "768x1344" in resolution:
        width, height = 768, 1344
    elif "1216x832" in resolution:
        width, height = 1216, 832
    elif "1536x640" in resolution:
        width, height = 1536, 640

    # Create submission
    submission = TaskSubmission(
        prompt=prompt,
        width=width,
        height=height
    )

    return await submit_task_with_retry(
        endpoint="api/v1/tasks/",
        payload=submission.to_api_payload(),
        task_name="Text to Image"
    )

async def get_task_status(task_id: str) -> dict:
    """Get task status from backend API"""
    try:
        async with httpx.AsyncClient(timeout=30) as client:
            response = await client.get(
                get_api_url(f"api/v1/tasks/{task_id}"),
                headers=get_api_headers()
            )
            response.raise_for_status()
            return response.json()
    except Exception as e:
        logger.error(f"Error getting task status: {e}")
        raise

async def get_task_result(task_id: str) -> dict:
    """Get task result from backend API"""
    try:
        async with httpx.AsyncClient(timeout=30) as client:
            response = await client.get(
                get_api_url(f"api/v1/tasks/{task_id}/result"),
                headers=get_api_headers()
            )
            response.raise_for_status()
            return response.json()
    except Exception as e:
        logger.error(f"Error getting task result: {e}")
        raise

async def load_image_from_result(result_data: dict) -> Image.Image:
    """Load PIL Image from task result data via URL download only"""
    if not result_data:
        raise ValueError("No result data received")

    result_url = result_data.get("result_url")
    logger.info(f"🔗 Result URL: {result_url}")

    if not result_url:
        logger.error(f"❌ No result_url in response. Available fields: {list(result_data.keys())}")
        raise ValueError("No result_url found in result")

    if not result_url.startswith("http"):
        raise ValueError(f"Invalid URL format: {result_url}")

    try:
        logger.info(f"📥 Downloading image from: {result_url}")
        async with httpx.AsyncClient(timeout=60.0) as client:
            response = await client.get(result_url)
            logger.info(f"📊 HTTP response status: {response.status_code}")
            response.raise_for_status()

            # Check content length
            content_length = len(response.content)
            logger.info(f"📦 Content size: {content_length} bytes")

            if content_length < 1024:  # Less than 1KB is suspicious
                raise ValueError("Downloaded content too small to be a valid image")

            return Image.open(io.BytesIO(response.content))

    except Exception as e:
        logger.error(f"Error downloading image from {result_url}: {e}")
        raise

def create_placeholder_image(prompt: str, resolution: str) -> Image.Image:
    """Create a placeholder image for examples"""
    try:
        # Parse resolution to get dimensions
        if "1024x1024" in resolution:
            width, height = 1024, 1024
        elif "1280x1024" in resolution:
            width, height = 1280, 1024
        else:
            width, height = 1024, 1024

        # Create a simple placeholder image
        img = Image.new('RGB', (width, height), color='#f5f5f5')
        return img
    except Exception as e:
        logger.error(f"Error creating placeholder image: {e}")
        return Image.new('RGB', (1024, 1024), color='#f5f5f5')

def create_placeholder_image_inline(prompt: str, resolution: str) -> Image.Image:
    """Create a placeholder image for examples"""
    try:
        # Parse resolution to get dimensions
        if "1024x1024" in resolution:
            width, height = 1024, 1024
        elif "1152x896" in resolution:
            width, height = 1152, 896
        elif "896x1152" in resolution:
            width, height = 896, 1152
        else:
            width, height = 1024, 1024

        # Create a simple placeholder image
        img = Image.new('RGB', (width, height), color='lightgray')
        return img
    except Exception:
        # Fallback to default size
        return Image.new('RGB', (1024, 1024), color='lightgray')

def load_example_result(prompt: str, resolution: str, result_path: str = None):
    """Load example result image for text-to-image"""
    try:
        # Find matching example in TEXT_TO_IMAGE_EXAMPLES_WITH_RESULTS
        for example_prompt, example_resolution, example_path in TEXT_TO_IMAGE_EXAMPLES_WITH_RESULTS:
            if example_prompt == prompt and example_resolution == resolution:
                if os.path.exists(example_path):
                    logger.info(f"Loading example result: {example_path}")
                    return Image.open(example_path)
                else:
                    logger.warning(f"Example image not found: {example_path}")
                    return create_placeholder_image_inline(prompt, resolution)

        # If no matching example found, create placeholder
        logger.warning(f"No matching example found for: {prompt[:50]}...")
        return create_placeholder_image_inline(prompt, resolution)
    except Exception as e:
        logger.error(f"Error loading example result: {e}")
        return create_placeholder_image_inline(prompt, resolution)

def load_line_art_example_result(input_image_path, result_path = None):
    """Load line art conversion example images"""
    try:
        input_image = None

        if isinstance(input_image_path, Image.Image):
            input_image = input_image_path
            logger.info(f"Using PIL.Image object for line art input (cache mode): {input_image.size}")
        elif isinstance(input_image_path, str):
            if os.path.exists(input_image_path):
                logger.info(f"Loading line art input image: {input_image_path}")
                input_image = Image.open(input_image_path)
            else:
                logger.warning(f"Line art input image not found: {input_image_path}")
                input_image = create_placeholder_image_inline("Input Image", "1024x1024")
        else:
            logger.warning(f"Unexpected input_image_path type: {type(input_image_path)}")
            input_image = create_placeholder_image_inline("Input Image", "1024x1024")

        result_image = None

        if isinstance(result_path, Image.Image):
            result_image = result_path
            logger.info(f"Using PIL.Image object for line art result (cache mode): {result_image.size}")
            return (input_image, result_image)

        from examples_config import LINE_ART_CONVERSION_EXAMPLES_WITH_RESULTS

        if isinstance(input_image_path, str):
            search_path = input_image_path
            for example_input, example_path in LINE_ART_CONVERSION_EXAMPLES_WITH_RESULTS:
                if example_input == search_path:
                    if os.path.exists(example_path):
                        logger.info(f"Loading line art example result: {example_path}")
                        result_image = Image.open(example_path)
                        return (input_image, result_image)
        else:
            image_size = input_image.size
            logger.info(f"Cache mode: identifying example by image size: {image_size}")

            size_to_result = {
                (474, 845): "examples/results/line_art_example1.jpg",
                (720, 1104): "examples/results/line_art_example2.jpg",
                (736, 1308): "examples/results/line_art_example3.jpg",
            }

            result_path = size_to_result.get(image_size)
            if result_path and os.path.exists(result_path):
                logger.info(f"Loading line art result by size mapping: {result_path}")
                result_image = Image.open(result_path)
                return (input_image, result_image)

        # If no matching example is found, create a placeholder
        logger.warning(f"No matching line art example found")
        result_image = create_placeholder_image_inline("Line Art Result", "1024x1024")
        return (input_image, result_image)

    except Exception as e:
        logger.error(f"Error loading line art example: {e}")
        input_placeholder = create_placeholder_image_inline("Input Image", "1024x1024")
        result_placeholder = create_placeholder_image_inline("Line Art Result", "1024x1024")
        return (input_placeholder, result_placeholder)

def load_anime_to_real_example_result(input_image_path, result_path=None):
    """
    Load example for Anime to Real: input image and pre-generated result image

    Simplified version using fixed paths (since only one example exists)
    """
    try:
        logger.info(f"=== ANIME FUNCTION CALLED ===")
        logger.info(f"Args: {input_image_path}, {result_path}")

        # 简化版本：直接使用固定路径
        input_path = "examples/anime_input/example1.jpg"
        result_path_fixed = "examples/results/anime_to_real_example1.jpg"

        logger.info(f"Loading fixed paths: {input_path}, {result_path_fixed}")

        # Load input image
        if os.path.exists(input_path):
            input_image = Image.open(input_path)
            logger.info(f"Input loaded: {input_image.size}")
        else:
            logger.error(f"Input not found: {input_path}")
            input_image = create_placeholder_image_inline("Input Error", "512x512")

        # Load result image
        if os.path.exists(result_path_fixed):
            result_image = Image.open(result_path_fixed)
            logger.info(f"Result loaded: {result_image.size}")
        else:
            logger.error(f"Result not found: {result_path_fixed}")
            result_image = create_placeholder_image_inline("Result Error", "512x512")

        logger.info(f"=== RETURNING: {input_image.size}, {result_image.size} ===")
        return (input_image, result_image)

    except Exception as e:
        logger.error(f"Error loading anime to real example: {e}", exc_info=True)
        input_placeholder = create_placeholder_image_inline("Anime Input", "1024x1024")
        result_placeholder = create_placeholder_image_inline("Real Person Result", "1024x1024")
        logger.info(f"=== Returning with error placeholders ===")
        return (input_placeholder, result_placeholder)

def load_real_to_anime_example_result(input_image_path, result_path=None):
    """Load example for Real to Anime conversion"""
    try:
        input_image = None

        if isinstance(input_image_path, Image.Image):
            input_image = input_image_path
            logger.info(f"Using PIL.Image object for real to anime input (cache mode): {input_image.size}")
        elif isinstance(input_image_path, str):
            if os.path.exists(input_image_path):
                logger.info(f"Loading real to anime input image: {input_image_path}")
                input_image = Image.open(input_image_path)
            else:
                logger.warning(f"Real to anime input image not found: {input_image_path}")
                input_image = create_placeholder_image_inline("Input Image", "1024x1024")
        else:
            logger.warning(f"Unexpected input_image_path type: {type(input_image_path)}")
            input_image = create_placeholder_image_inline("Input Image", "1024x1024")

        result_image = None

        if isinstance(result_path, Image.Image):
            result_image = result_path
            logger.info(f"Using PIL.Image object for real to anime result (cache mode): {result_image.size}")
            return (input_image, result_image)

        from examples_config import REAL_TO_ANIME_EXAMPLES_WITH_RESULTS

        if isinstance(input_image_path, str):
            search_path = input_image_path
            for example_input, example_result in REAL_TO_ANIME_EXAMPLES_WITH_RESULTS:
                if example_input == search_path:
                    if os.path.exists(example_result):
                        logger.info(f"Loading real to anime example result: {example_result}")
                        result_image = Image.open(example_result)
                        return (input_image, result_image)
        else:
            image_size = input_image.size
            logger.info(f"Cache mode: identifying real to anime example by image size: {image_size}")

            size_to_result = {
                (736, 1104): "examples/results/real_to_anime_example1.jpg",
                (736, 946): "examples/results/real_to_anime_example2.jpg",
                (1206, 796): "examples/results/real_to_anime_example3.jpg",
            }

            result_path_mapped = size_to_result.get(image_size)
            if result_path_mapped and os.path.exists(result_path_mapped):
                logger.info(f"Loading real to anime result by size mapping: {result_path_mapped}")
                result_image = Image.open(result_path_mapped)
                return (input_image, result_image)

        # If no matching example is found, create a placeholder
        logger.warning(f"No matching real to anime example found")
        result_image = create_placeholder_image_inline("Anime Style Result", "1024x1024")
        return (input_image, result_image)

    except Exception as e:
        logger.error(f"Error loading real to anime example: {e}", exc_info=True)
        input_placeholder = create_placeholder_image_inline("Real Photo Input", "1024x1024")
        result_placeholder = create_placeholder_image_inline("Anime Style Result", "1024x1024")
        return (input_placeholder, result_placeholder)

def load_dual_output_example(input_path, param1=None, param2=None):
    """Load example with both input and result images - enhanced version for different use cases"""
    try:
        # Handle input image
        if isinstance(input_path, Image.Image):
            input_image = input_path
        elif isinstance(input_path, str) and os.path.exists(input_path):
            input_image = Image.open(input_path)
        else:
            input_image = create_placeholder_image_inline("Input", "1024x1024")

        # Try to find result image from various examples configs
        result_image = None
        if isinstance(input_path, str):
            # Check different examples configs to find matching result
            from examples_config import (
                IMAGE_OUTPAINTING_EXAMPLES_WITH_RESULTS,
                INTERIOR_DESIGN_EXAMPLES_WITH_RESULTS
            )

            # Try image outpainting examples first
            for example in IMAGE_OUTPAINTING_EXAMPLES_WITH_RESULTS:
                if example[0] == input_path and len(example) > 3:
                    result_path = example[3]  # Result is at index 3
                    if os.path.exists(result_path):
                        result_image = Image.open(result_path)
                        logger.info(f"Found outpainting result: {result_path}")
                        break

            # Try interior design examples if not found
            if not result_image:
                for example in INTERIOR_DESIGN_EXAMPLES_WITH_RESULTS:
                    if example[0] == input_path and len(example) > 2:
                        result_path = example[2]  # Result is at index 2
                        if os.path.exists(result_path):
                            result_image = Image.open(result_path)
                            logger.info(f"Found interior design result: {result_path}")
                            break

        if not result_image:
            result_image = create_placeholder_image_inline("Result", "1024x1024")

        return input_image, result_image
    except Exception as e:
        logger.error(f"Error loading dual output example: {e}")
        placeholder = create_placeholder_image_inline("Error", "1024x1024")
        return placeholder, placeholder

def load_five_view_example(input_path):
    """Load five view generation example with input and result images"""
    try:
        # Handle input image
        if isinstance(input_path, Image.Image):
            input_image = input_path
        elif isinstance(input_path, str) and os.path.exists(input_path):
            input_image = Image.open(input_path)
        else:
            input_image = create_placeholder_image_inline("Input", "1024x1024")

        # Try to find result from FIVE_VIEW_GENERATION_EXAMPLES_WITH_RESULTS
        from examples_config import FIVE_VIEW_GENERATION_EXAMPLES_WITH_RESULTS
        result_image = None

        # When Gradio caches examples, it passes PIL Image objects, not file paths
        # We need to match by image size or use the first available result
        if isinstance(input_path, Image.Image):
            # For PIL Image inputs (cache mode), use the first available result
            if len(FIVE_VIEW_GENERATION_EXAMPLES_WITH_RESULTS) > 0:
                result_path_found = FIVE_VIEW_GENERATION_EXAMPLES_WITH_RESULTS[0][1]
                if os.path.exists(result_path_found):
                    result_image = Image.open(result_path_found)
                    logger.info(f"Found five view result: {result_path_found}")
        elif isinstance(input_path, str):
            for example in FIVE_VIEW_GENERATION_EXAMPLES_WITH_RESULTS:
                if example[0] == input_path and len(example) > 1:
                    result_path_found = example[1]
                    if os.path.exists(result_path_found):
                        result_image = Image.open(result_path_found)
                        logger.info(f"Found five view result: {result_path_found}")
                        break

        if not result_image:
            result_image = create_placeholder_image_inline("Five View Result", "1024x1024")

        return input_image, result_image
    except Exception as e:
        logger.error(f"Error loading five view example: {e}")
        placeholder = create_placeholder_image_inline("Error", "1024x1024")
        return placeholder, placeholder

def load_figure_3d_example(input_image_path, figure_style: str, resolution: str = "square - 1024x1024 (1:1)", result_path=None):
    """
    Load 3D figure generation example input image and pre-generated result image

    Supports two modes:
    1. Runtime mode: input_image_path is a string path, result_path is a string path
    2. Cache generation mode: input_image_path is a PIL.Image object, result_path is a PIL.Image object
    """
    try:
        # 1. 处理输入图片 - 支持字符串路径和PIL.Image对象
        input_image = None

        if isinstance(input_image_path, Image.Image):
            # Cache mode: directly use PIL.Image object
            input_image = input_image_path
            logger.info(f"Using PIL.Image object for input (cache mode): {input_image.size}")
        elif isinstance(input_image_path, str):
            # 运行时模式：从路径加载图片
            if os.path.exists(input_image_path):
                logger.info(f"Loading figure 3D input image: {input_image_path}")
                input_image = Image.open(input_image_path)
            else:
                logger.warning(f"Figure 3D input image not found: {input_image_path}")
                input_image = create_placeholder_image("Input Image", "1024x1024")
        else:
            logger.warning(f"Unexpected input_image_path type: {type(input_image_path)}")
            input_image = create_placeholder_image("Input Image", "1024x1024")

        # 2. Handle result image - supports string path and PIL.Image object
        result_image = None

        if isinstance(result_path, Image.Image):
            # Cache mode: directly use PIL.Image object
            result_image = result_path
            logger.info(f"Using PIL.Image object for result (cache mode): {result_image.size}")
        elif isinstance(result_path, str):
            # 运行时模式：从路径加载结果图片
            if os.path.exists(result_path):
                logger.info(f"Loading figure 3D result image: {result_path}")
                result_image = Image.open(result_path)
            else:
                logger.warning(f"Figure 3D result image not found: {result_path}")
                result_image = create_placeholder_image("Result Image", "1024x1024")
        else:
            # 尝试从FIGURE_3D_EXAMPLES_WITH_RESULTS中查找匹配的结果
            from examples_config import FIGURE_3D_EXAMPLES_WITH_RESULTS
            result_image = None

            # 当Gradio缓存examples时，它传递PIL Image对象，不是文件路径
            # 我们需要通过风格匹配或使用第一个可用结果
            if isinstance(input_image_path, Image.Image):
                # 对于PIL Image输入（缓存模式），通过风格查找结果
                for example in FIGURE_3D_EXAMPLES_WITH_RESULTS:
                    if len(example) >= 3 and example[1] == figure_style:
                        result_path_found = example[2]
                        if os.path.exists(result_path_found):
                            result_image = Image.open(result_path_found)
                            logger.info(f"Found figure 3D result by style: {result_path_found}")
                            break
            elif isinstance(input_image_path, str):
                # 对于字符串路径输入，精确匹配
                for example in FIGURE_3D_EXAMPLES_WITH_RESULTS:
                    if len(example) >= 3 and example[0] == input_image_path and example[1] == figure_style:
                        result_path_found = example[2]
                        if os.path.exists(result_path_found):
                            result_image = Image.open(result_path_found)
                            logger.info(f"Found figure 3D result: {result_path_found}")
                            break

            if not result_image:
                result_image = create_placeholder_image("Figure 3D Result", "1024x1024")

        return input_image, figure_style, resolution, result_image
    except Exception as e:
        logger.error(f"Error loading figure 3D example: {e}")
        placeholder = create_placeholder_image_inline("Error", "1024x1024")
        return placeholder, figure_style, resolution, placeholder

def load_character_figure_collaboration_example(input_image_path, result_path=None):
    """
    Load character figure collaboration example input image and pre-generated result image

    Args:
        input_image_path: Path to input image or PIL.Image object
        result_path: Path to result image or PIL.Image object

    Returns:
        tuple: (input_image, result_image)
    """
    try:
        # 1. 处理输入图片 - 支持字符串路径和PIL.Image对象
        input_image = None

        if isinstance(input_image_path, Image.Image):
            # Cache mode: directly use PIL.Image object
            input_image = input_image_path
            logger.info(f"Using PIL.Image object for input (cache mode): {input_image.size}")
        elif isinstance(input_image_path, str):
            # 运行时模式：从路径加载图片
            if os.path.exists(input_image_path):
                logger.info(f"Loading character figure collaboration input image: {input_image_path}")
                input_image = Image.open(input_image_path)
            else:
                logger.warning(f"Character figure collaboration input image not found: {input_image_path}")
                input_image = create_placeholder_image("Input Image", "1024x1024")
        else:
            logger.warning(f"Unexpected input_image_path type: {type(input_image_path)}")
            input_image = create_placeholder_image("Input Image", "1024x1024")

        # 2. Handle result image - 完全按照Line Art的模式
        result_image = None

        if isinstance(result_path, Image.Image):
            # Cache mode: directly use PIL.Image object
            result_image = result_path
            logger.info(f"Using PIL.Image object for result (cache mode): {result_image.size}")
            return input_image, result_image

        from examples_config import CHARACTER_FIGURE_COLLABORATION_EXAMPLES_WITH_RESULTS

        if isinstance(input_image_path, str):
            # 运行时模式：通过输入路径查找匹配的结果
            search_path = input_image_path
            for example_input, example_result in CHARACTER_FIGURE_COLLABORATION_EXAMPLES_WITH_RESULTS:
                if example_input == search_path:
                    if os.path.exists(example_result):
                        logger.info(f"Loading character figure collaboration example result: {example_result}")
                        result_image = Image.open(example_result)
                        return input_image, result_image
        else:
            # Cache mode: 通过图片尺寸匹配（完全按照Line Art的模式）
            image_size = input_image.size
            logger.info(f"Cache mode: identifying character figure collaboration example by image size: {image_size}")

            # 创建尺寸到结果图片的映射（完全按照Line Art的模式）
            size_to_result = {
                (1206, 776): "examples/results/character_figure_collaboration_example1.jpg",
                (1320, 1920): "examples/results/character_figure_collaboration_example2.jpg",
                (1536, 2200): "examples/results/character_figure_collaboration_example3.jpg",
                (1206, 1787): "examples/results/character_figure_collaboration_example4.jpg",
            }

            result_path = size_to_result.get(image_size)
            if result_path and os.path.exists(result_path):
                logger.info(f"Loading character figure collaboration result by size mapping: {result_path}")
                result_image = Image.open(result_path)
                return input_image, result_image

        # If no matching example is found, create a placeholder
        logger.warning(f"No matching character figure collaboration example found")
        result_image = create_placeholder_image_inline("Character Figure Collaboration Result", "1024x1024")
        return input_image, result_image
    except Exception as e:
        logger.error(f"Error loading character figure collaboration example: {e}")
        placeholder = create_placeholder_image_inline("Error", "1024x1024")
        return placeholder, placeholder

def load_outpainting_example_result(input_image_path, expand_height, expand_width, result_path=None):
    """
    Load outpainting example input image, parameters, and pre-generated result image

    Args:
        input_image_path: input image path or PIL.Image object
        expand_height: outpainting height percentage
        expand_width: outpainting width percentage
        result_path: result image path or PIL.Image object

    Returns:
        Tuple[Image.Image, float, float, Image.Image]: (输入图片, 扩展高度, 扩展宽度, 结果图片)
    """
    try:
        # 确保参数是正确的数字类型（防止缓存序列化问题）
        expand_height = float(expand_height)
        expand_width = float(expand_width)
        # 处理输入图片
        if isinstance(input_image_path, str) and os.path.exists(input_image_path):
            input_image = Image.open(input_image_path)
            logger.info(f"Loading outpainting input image: {input_image_path}")
        elif isinstance(input_image_path, Image.Image):
            input_image = input_image_path
            logger.info(f"Using PIL.Image object for outpainting input (cache mode): {input_image.size}")
        else:
            input_image = create_placeholder_image_inline("Input Image", "1024x1024")

        # Handle result image
        if isinstance(result_path, Image.Image):
            # 缓存生成模式：直接使用PIL.Image对象
            result_image = result_path
            logger.info(f"Using PIL.Image object for outpainting result (cache mode): {result_image.size}")
            return (input_image, expand_height, expand_width, result_image)
        elif isinstance(result_path, str) and os.path.exists(result_path):
            result_image = Image.open(result_path)
            logger.info(f"Loading outpainting result from path: {result_path}")
            return (input_image, expand_height, expand_width, result_image)

        # Runtime mode: find result image from IMAGE_OUTPAINTING_EXAMPLES_WITH_RESULTS
        from examples_config import IMAGE_OUTPAINTING_EXAMPLES_WITH_RESULTS

        if isinstance(input_image_path, str):
            # 运行时模式：精确匹配路径和参数
            search_path = input_image_path
            for example_input, example_height, example_width, example_result in IMAGE_OUTPAINTING_EXAMPLES_WITH_RESULTS:
                if example_input == search_path and abs(example_height - expand_height) < 0.01 and abs(example_width - expand_width) < 0.01:
                    if os.path.exists(example_result):
                        logger.info(f"Loading outpainting example result: {example_result}")
                        result_image = Image.open(example_result)
                        return (input_image, expand_height, expand_width, result_image)
        else:
            # Cache mode: identify example by image size and parameters
            image_size = input_image.size
            logger.info(f"Cache mode: identifying outpainting example by image size: {image_size} and params: height={expand_height}, width={expand_width}")

            # 预定义的尺寸和参数映射（根据实际图片尺寸和参数）
            size_param_to_result = {
                ((1070, 1906), 0.2, 0.3): "examples/results/outpainting_example1.jpg",   # example1: 原始测试图片
                ((960, 1200), 0.2, 0.4): "examples/results/outpainting_example2.jpg",    # example2: 日式住宅
                ((641, 1200), 0.5, 0.2): "examples/results/outpainting_example3.jpg",    # example3: 人物自拍
            }

            # Find matching result
            key = (image_size, expand_height, expand_width)
            if key in size_param_to_result:
                result_path_mapped = size_param_to_result[key]
                if os.path.exists(result_path_mapped):
                    logger.info(f"Loading outpainting result by size and param mapping: {result_path_mapped}")
                    result_image = Image.open(result_path_mapped)
                    return (input_image, expand_height, expand_width, result_image)

        # If no matching result is found, use the first available result
        logger.info("Using first available outpainting result")
        for example_input, example_height, example_width, example_result in IMAGE_OUTPAINTING_EXAMPLES_WITH_RESULTS:
            if os.path.exists(example_result):
                logger.info(f"Loading first available outpainting result: {example_result}")
                result_image = Image.open(example_result)
                return (input_image, expand_height, expand_width, result_image)

        # As a fallback: create a placeholder
        logger.info("No outpainting results found, creating placeholder")
        result_image = create_placeholder_image_inline("Outpainting Result", "1536x1024")
        return (input_image, expand_height, expand_width, result_image)

    except Exception as e:
        logger.error(f"Error loading outpainting example: {e}", exc_info=True)
        input_placeholder = create_placeholder_image_inline("Input Image", "1024x1024")
        result_placeholder = create_placeholder_image_inline("Outpainting Result", "1536x1024")
        return (input_placeholder, 0.2, 0.2, result_placeholder)

def load_outpainting_example_for_gradio(input_image_path, expand_height, expand_width, result_path):
    """
    Designed specifically for Gradio Examples to ensure input-output counts match

    Args:
        input_image_path: input image path or PIL.Image object
        expand_height: outpainting height percentage
        expand_width: outpainting width percentage
        result_path: result image path (from examples config)

    Returns:
        Tuple[Image.Image, float, float, Image.Image]: (input image, outpaint height, outpaint width, result image)
    """
    try:
        # 确保参数是正确的数字类型
        expand_height = float(expand_height)
        expand_width = float(expand_width)

        # 调用原有的加载函数，传入result_path
        result = load_outpainting_example_result(input_image_path, expand_height, expand_width, result_path)

        # 确保返回4个值
        if len(result) == 4:
            return result
        else:
            logger.error(f"load_outpainting_example_result returned {len(result)} values, expected 4")
            # 创建默认返回值
            input_placeholder = create_placeholder_image_inline("Input Image", "1024x1024")
            result_placeholder = create_placeholder_image_inline("Outpainting Result", "1536x1024")
            return (input_placeholder, expand_height, expand_width, result_placeholder)

    except Exception as e:
        logger.error(f"Error in load_outpainting_example_for_gradio: {e}", exc_info=True)
        # 创建默认返回值
        input_placeholder = create_placeholder_image_inline("Input Image", "1024x1024")
        result_placeholder = create_placeholder_image_inline("Outpainting Result", "1536x1024")
        return (input_placeholder, float(expand_height), float(expand_width), result_placeholder)

def load_interior_design_example_result(input_image_path, design_style: str, result_path=None):
    """
    Load interior design rendering example input image and pre-generated result image

    Supports two modes:
    1. Runtime mode: input_image_path is a string path, result_path is a string path
    2. Cache generation mode: input_image_path is a PIL.Image object, result_path is a PIL.Image object
    """
    try:
        # 1. 处理输入图片 - 支持字符串路径和PIL.Image对象
        input_image = None

        if isinstance(input_image_path, Image.Image):
            # Cache mode: directly use PIL.Image object
            input_image = input_image_path
            logger.info(f"Using PIL.Image object for input (cache mode): {input_image.size}")
        elif isinstance(input_image_path, str):
            # 运行时模式：从路径加载图片
            if os.path.exists(input_image_path):
                logger.info(f"Loading interior design input image: {input_image_path}")
                input_image = Image.open(input_image_path)
            else:
                logger.warning(f"Interior design input image not found: {input_image_path}")
                input_image = create_placeholder_image("Input Image", "1024x1024")
        else:
            logger.warning(f"Unexpected input_image_path type: {type(input_image_path)}")
            input_image = create_placeholder_image("Input Image", "1024x1024")

        # 2. Handle result image - supports string path and PIL.Image object
        result_image = None

        if isinstance(result_path, Image.Image):
            # 缓存生成模式：直接使用PIL.Image对象
            result_image = result_path
            logger.info(f"Using PIL.Image object for result (cache mode): {result_image.size}")
            return (input_image, result_image)

        # 运行时模式：从INTERIOR_DESIGN_EXAMPLES_WITH_RESULTS查找结果图片
        from examples_config import INTERIOR_DESIGN_EXAMPLES_WITH_RESULTS

        # 对于运行时模式，需要用字符串路径进行匹配
        search_path = input_image_path if isinstance(input_image_path, str) else "examples/interior_input.png"

        for example_input, example_style, example_path in INTERIOR_DESIGN_EXAMPLES_WITH_RESULTS:
            if example_input == search_path and example_style == design_style:
                if os.path.exists(example_path):
                    logger.info(f"Loading interior design example result: {example_path}")
                    result_image = Image.open(example_path)
                    return (input_image, result_image)
                else:
                    logger.warning(f"Interior design example result not found: {example_path}")
                    result_image = create_placeholder_image("Interior Design Result", "1280x1024")
                    return (input_image, result_image)

        # If no matching example is found, create a placeholder
        logger.warning(f"No matching interior design example found for: {search_path}, {design_style}")
        result_image = create_placeholder_image("Interior Design Result", "1280x1024")
        return (input_image, result_image)

    except Exception as e:
        logger.error(f"Error loading interior design example: {e}")
        input_placeholder = create_placeholder_image("Input Image", "1024x1024")
        result_placeholder = create_placeholder_image("Interior Design Result", "1280x1024")
        return (input_placeholder, result_placeholder)

# Task submission functions for all AI features
async def submit_image_to_image_task(pil_image: Image.Image) -> dict:
    """Submit image-to-image task to backend API"""
    processed_image = resize_image_if_needed(pil_image, max_size=1536, min_size=512)
    base64_data = pil_to_base64(processed_image)
    submission = ImageToImageSubmission(image_data=base64_data)

    return await submit_task_with_retry(
        endpoint="api/v1/tasks/image-to-image",
        payload=submission.to_api_payload(),
        task_name="Image Conversion"
    )

async def submit_photo_style_task(pil_image: Image.Image, style_preset: str) -> dict:
    """Submit photo style transfer task to backend API"""
    processed_image = resize_image_if_needed(pil_image, max_size=1536, min_size=512)
    base64_data = pil_to_base64(processed_image)
    submission = PhotoStyleSubmission(image_data=base64_data, style_preset=style_preset)

    return await submit_task_with_retry(
        endpoint="api/v1/tasks/photo-style",
        payload=submission.to_api_payload(),
        task_name="Photo Style Transfer"
    )

async def submit_interior_design_task(pil_image: Image.Image, design_style: str) -> dict:
    """Submit interior design rendering task to backend API"""
    processed_image = resize_image_if_needed(pil_image, max_size=1536, min_size=512)
    base64_data = pil_to_base64(processed_image)
    submission = InteriorDesignRenderingSubmission(image_data=base64_data, design_style=design_style)

    return await submit_task_with_retry(
        endpoint="api/v1/tasks/interior-design-rendering",
        payload=submission.to_api_payload(),
        task_name="Interior Design Rendering"
    )

async def submit_watermark_removal_task(pil_image: Image.Image) -> dict:
    """Submit watermark removal task to backend API"""
    processed_image = resize_image_if_needed(pil_image, max_size=1536, min_size=512)
    base64_data = pil_to_base64(processed_image)
    submission = WatermarkRemovalSubmission(image_data=base64_data)

    return await submit_task_with_retry(
        endpoint="api/v1/tasks/watermark-removal",
        payload=submission.to_api_payload(),
        task_name="Watermark Removal"
    )

async def submit_line_art_task(pil_image: Image.Image) -> dict:
    """Submit line art conversion task to backend API"""
    processed_image = resize_image_if_needed(pil_image, max_size=1536, min_size=512)
    base64_data = pil_to_base64(processed_image)
    submission = LineArtConversionSubmission(image_data=base64_data)

    return await submit_task_with_retry(
        endpoint="api/v1/tasks/line-art-conversion",
        payload=submission.to_api_payload(),
        task_name="Line Art Conversion"
    )

async def submit_image_outpainting_task(pil_image: Image.Image, expand_height: float, expand_width: float) -> dict:
    """Submit image outpainting task to backend API"""
    processed_image = resize_image_if_needed(pil_image, max_size=1536, min_size=512)
    base64_data = pil_to_base64(processed_image)
    submission = ImageOutpaintingSubmission(
        image_data=base64_data,
        expand_height=expand_height,
        expand_width=expand_width
    )

    return await submit_task_with_retry(
        endpoint="api/v1/tasks/image-outpainting",
        payload=submission.to_api_payload(),
        task_name="Image Outpainting"
    )

async def submit_anime_to_real_task(pil_image: Image.Image) -> dict:
    """Submit anime to real conversion task to backend API"""
    processed_image = resize_image_if_needed(pil_image, max_size=1536, min_size=512)
    base64_data = pil_to_base64(processed_image)
    submission = AnimeToRealSubmission(image_data=base64_data)

    return await submit_task_with_retry(
        endpoint="api/v1/tasks/anime-to-real",
        payload=submission.to_api_payload(),
        task_name="Anime to Real"
    )

async def submit_real_to_anime_task(pil_image: Image.Image) -> dict:
    """Submit real to anime conversion task to backend API"""
    processed_image = resize_image_if_needed(pil_image, max_size=1536, min_size=512)
    base64_data = pil_to_base64(processed_image)
    submission = RealToAnimeSubmission(image_data=base64_data)

    return await submit_task_with_retry(
        endpoint="api/v1/tasks/real-to-anime",
        payload=submission.to_api_payload(),
        task_name="Real to Anime"
    )

async def submit_five_view_generation_task(input_image: Image.Image) -> dict:
    """Submit five-view generation task to backend API"""
    # Convert PIL image to base64
    processed_image = input_image.convert("RGB")
    base64_data = pil_to_base64(processed_image)

    submission = FiveViewGenerationSubmission(image_data=base64_data)

    return await submit_task_with_retry(
        endpoint="api/v1/tasks/five-view-generation",
        payload=submission.to_api_payload(),
        task_name="Five-View Generation"
    )

async def submit_figure_3d_generation_task(input_image: Image.Image, figure_style: str, resolution: str) -> dict:
    """Submit 2D to 3D figure generation task to backend API"""
    # Convert PIL image to base64
    processed_image = input_image.convert("RGB")
    base64_data = pil_to_base64(processed_image)

    submission = Figure3DSubmission(
        image_data=base64_data,
        figure_style=figure_style,
        resolution=resolution
    )

    return await submit_task_with_retry(
        endpoint="api/v1/tasks/figure-3d-generation",
        payload=submission.to_api_payload(),
        task_name="2D to 3D Figure"
    )


async def submit_character_figure_collaboration_task(input_image: Image.Image) -> dict:
    """Submit character figure collaboration task to backend API"""
    # Convert PIL image to base64
    processed_image = input_image.convert("RGB")
    base64_data = pil_to_base64(processed_image)

    submission = CharacterFigureCollaborationSubmission(
        image_data=base64_data
    )

    return await submit_task_with_retry(
        endpoint="api/v1/tasks/character-figure-collaboration",
        payload=submission.to_api_payload(),
        task_name="Character Figure Collaboration"
    )


# ============================================================================
# UI Configuration and Theme Setup
# ============================================================================

def create_custom_theme():
    """Create a clean light theme using Gradio's Default theme"""
    return gr.themes.Default(
        primary_hue=gr.themes.colors.blue,
        secondary_hue=gr.themes.colors.gray,
        neutral_hue=gr.themes.colors.slate,
        font=[gr.themes.GoogleFont("Inter"), "ui-sans-serif", "system-ui", "sans-serif"],
        font_mono=[gr.themes.GoogleFont("JetBrains Mono"), "ui-monospace", "Consolas", "monospace"],
    )

# ============================================================================
# AI Processing Functions
# ============================================================================

# Global task tracking
CURRENT_TASK_ID = None
TASK_CANCELLED = False

def cancel_current_task():
    """Cancel the current running task"""
    global TASK_CANCELLED  # pylint: disable=global-statement
    TASK_CANCELLED = True
    logger.info("Task cancellation requested")
    return (
        gr.update(visible=True),   # generate_btn
        gr.update(visible=False),  # cancel_btn
        "Task cancelled"             # status_info
    )

async def generate_text_to_image(prompt: str, resolution: str, progress=None):
    """Generate image from text prompt"""
    global CURRENT_TASK_ID, TASK_CANCELLED  # pylint: disable=global-statement

    try:
        TASK_CANCELLED = False

        if not prompt.strip():
            yield None, "❌ Please enter an image description", "", True, False
            return

        logger.info(f"Starting text-to-image generation: {prompt[:50]}...")
        start_time = datetime.now()

        yield (
            None,
            "🚀 Submitting task to AI server...",
            "**Tip**: The AI is processing your description and preparing to create...",
            False,
            True
        )
        try:
            task_data = await submit_text_to_image_task(prompt, resolution)
            task_id = task_data.get("task_id")
            CURRENT_TASK_ID = task_id

            if not task_id:
                raise Exception("Server did not return a task ID")

            logger.info(f"Task submitted successfully: {task_id}")

        except Exception as e:
            logger.error(f"Task submission failed: {e}")
            error_message = str(e) if any(msg in str(e) for msg in ["System is currently busy", "Service temporarily unavailable", "Invalid request parameters", "Network connection timeout", "Unable to connect to server", "Task submission failed"]) else "Task submission failed, please try again later"
            yield (
                None,
                f"❌ {error_message}",
                "**Tip**: If the system is busy, please wait a moment and try again",
                True,
                False
            )
            return

        # Poll for completion
        max_attempts = CONFIG.MAX_POLL_ATTEMPTS
        poll_interval = CONFIG.POLL_INTERVAL

        for attempt in range(max_attempts):
            if TASK_CANCELLED:
                yield (
                    None,
                    "Task cancelled",
                    "",
                    True,
                    False
                )
                return

            try:
                status_data = await get_task_status(task_id)
                status = status_data.get("status", "unknown")

                elapsed_time = (datetime.now() - start_time).total_seconds()
                progress_percent = min(95, (attempt / max_attempts) * 100)

                if progress:
                    progress(progress_percent / 100, f"Generating... ({elapsed_time:.0f}s)")

                if status == "completed":
                    # Get result
                    result_data = await get_task_result(task_id)
                    result_image = await load_image_from_result(result_data)

                    logger.info(f"Generation completed in {elapsed_time:.1f}s")

                    yield (
                        result_image,
                        "✓ Image generated!",
                        f"Generation time: {elapsed_time:.1f} s",
                        True,
                        False
                    )
                    return

                elif status == "failed":
                    error_msg = status_data.get("error", "Unknown error")
                    yield (
                        None,
                        f"❌ Generation failed: {error_msg}",
                        "",
                        True,
                        False
                    )
                    return

                # Update status with helpful tips
                tips = [
                    "💡 Tip: More detailed descriptions lead to more accurate images",
                    "🎨 Creating: The AI is drawing a unique image based on your description",
                    "⏱️ Please wait: Complex images take more time to refine",
                    "🔥 Almost done: The AI is adding final touches"
                ]
                tip_index = min(attempt // 5, len(tips) - 1)

                yield (
                    None,
                    f"🎨 AI is generating the image... ({elapsed_time:.0f}s)",
                    tips[tip_index],
                    False,
                    True
                )

                await asyncio.sleep(poll_interval)

            except Exception as e:
                logger.error(f"Error polling task status: {e}")
                yield (
                    None,
                    "❌ Status query failed. Please try again later.",
                    "",
                    True,
                    False
                )
                return

        # Timeout
        yield (
            None,
            "Timeout: Generation timed out, please try again later",
            "",
            True,
            False
        )

    except Exception as e:
        logger.error(f"Unexpected error in text-to-image generation: {e}")
        yield (
            None,
            "❌ An unexpected error occurred during generation. Please try again later.",
            "",
            True,
            False
        )

async def generic_image_processing(
    input_image: Image.Image,
    task_name: str,
    submit_func,
    submit_args: tuple = (),
    progress=None
):
    """Generic image processing function for all AI features"""
    global CURRENT_TASK_ID, TASK_CANCELLED  # pylint: disable=global-statement

    try:
        TASK_CANCELLED = False

        if input_image is None:
            yield None, f"❌ Please upload an image", "", True, False
            return

        logger.info(f"Starting {task_name} processing...")
        start_time = datetime.now()

        yield (
            None,
            f"🚀 Submitting {task_name} task to the AI server...",
            f"**Tip**: The AI is analyzing your image and preparing to start {task_name}...",
            False,
            True
        )
        try:
            task_data = await submit_func(input_image, *submit_args)
            task_id = task_data.get("task_id")
            CURRENT_TASK_ID = task_id

            if not task_id:
                raise Exception("Server did not return a task ID")

            logger.info(f"{task_name} task submitted successfully: {task_id}")

        except Exception as e:
            logger.error(f"{task_name} task submission failed: {e}")
            # Show user-friendly error message
            error_message = str(e) if any(msg in str(e) for msg in ["System is currently busy", "Service temporarily unavailable", "Invalid request parameters", "Network connection timeout", "Unable to connect to server", "Task submission failed"]) else "Task submission failed, please try again later"
            yield (
                None,
                f"❌ {error_message}",
                "**Tip**: If the system is busy, please wait a moment and try again",
                True,
                False
            )
            return

        # Poll for completion
        max_attempts = CONFIG.MAX_POLL_ATTEMPTS
        poll_interval = CONFIG.POLL_INTERVAL

        for attempt in range(max_attempts):
            if TASK_CANCELLED:
                yield (
                    None,
                    "Task cancelled",
                    "",
                    True,
                    False
                )
                return

            try:
                status_data = await get_task_status(task_id)
                status = status_data.get("status", "unknown")

                elapsed_time = (datetime.now() - start_time).total_seconds()
                progress_percent = min(95, (attempt / max_attempts) * 100)

                if progress:
                    progress(progress_percent / 100, f"Processing... ({elapsed_time:.0f}s)")

                if status == "completed":
                    # Get result
                    result_data = await get_task_result(task_id)
                    result_image = await load_image_from_result(result_data)

                    logger.info(f"{task_name} completed in {elapsed_time:.1f}s")

                    yield (
                        result_image,
                        f"✓ {task_name} completed!",
                        f"Processing time: {elapsed_time:.1f} s",
                        True,
                        False
                    )
                    return

                elif status == "failed":
                    error_msg = status_data.get("error", "Unknown error")
                    yield (
                        None,
                        f"❌ {task_name} failed: {error_msg}",
                        "",
                        True,
                        False
                    )
                    return

                # Update status with task-specific tips
                task_tips = {
                    "Image Conversion": ["🔄 Processing: analyzing image features", "🎯 Optimizing: applying advanced image processing"],
                    "Five-View Generation": ["👁️ Analyzing: understanding facial and pose features", "🔄 Generating: creating multiple viewpoints"],
                    "Photo Style Transfer": ["📸 Stylizing: applying professional photography techniques", "✨ Enhancing: optimizing lighting and colors"],
                    "Interior Design Rendering": ["🏠 Designing: composing interior layout", "🎨 Rendering: adding furniture and decor"],
                    "Watermark Removal": ["🚫 Detecting: locating watermark areas", "🔧 Repairing: intelligently inpainting background"],
                    "Line Art Conversion": ["✏️ Outlining: extracting contours", "🎨 Refining: improving line details"],
                    "Image Outpainting": ["📐 Extending: adding coherent border content", "🔄 Blending: ensuring seamless continuity"],
                    "Anime to Real": ["👤 Converting: mapping anime features to realistic ones", "🎭 Refining: adjusting facial details"],
                    "Real to Anime": ["🎌 Stylizing: applying anime art style", "✨ Enhancing: optimizing anime effects"]
                }

                tips = task_tips.get(task_name, ["🔄 Processing: AI is working hard", "⏱️ Please wait: almost done"])
                tip_index = min(attempt // 8, len(tips) - 1)

                yield (
                    None,
                    f"🎨 AI is processing {task_name}... ({elapsed_time:.0f}s)",
                    tips[tip_index],
                    False,
                    True
                )

                await asyncio.sleep(poll_interval)

            except Exception as e:
                logger.error(f"Error polling {task_name} task status: {e}")
                yield (
                    None,
                    "❌ Status query failed. Please try again later.",
                    "",
                    True,
                    False
                )
                return

        # Timeout
        yield (
            None,
            f"Timeout: {task_name} timed out, please try again later",
            "",
            True,
            False
        )

    except Exception as e:
        logger.error(f"Unexpected error in {task_name}: {e}")
        yield (
            None,
            f"❌ An unexpected error occurred during {task_name}. Please try again later.",
            "",
            True,
            False
        )

# Specific AI processing functions
async def generate_image_to_image(input_image: Image.Image, progress=None):
    """Generate image from image conversion"""
    async for result in generic_image_processing(
        input_image, "Image to Image", submit_image_to_image_task, (), progress
    ):
        yield result

async def generate_photo_style(input_image: Image.Image, style_preset: str, progress=None):
    """Apply photo style transfer"""
    async for result in generic_image_processing(
        input_image, "Photo Style Transfer", submit_photo_style_task, (style_preset,), progress
    ):
        yield result

async def generate_interior_design(input_image: Image.Image, design_style: str, progress=None):
    """Generate interior design rendering"""
    async for result in generic_image_processing(
        input_image, "Interior Design Rendering", submit_interior_design_task, (design_style,), progress
    ):
        yield result

async def generate_watermark_removal(input_image: Image.Image, progress=None):
    """Remove watermark from image"""
    async for result in generic_image_processing(
        input_image, "Watermark Removal", submit_watermark_removal_task, (), progress
    ):
        yield result

async def generate_line_art(input_image: Image.Image, progress=None):
    """Convert image to line art"""
    async for result in generic_image_processing(
        input_image, "Line Art Conversion", submit_line_art_task, (), progress
    ):
        yield result

async def generate_image_outpainting(
    input_image: Image.Image, expand_height: float, expand_width: float, progress=None
):
    """Expand image boundaries"""
    async for result in generic_image_processing(
        input_image, "Image Outpainting", submit_image_outpainting_task,
        (expand_height, expand_width), progress
    ):
        yield result

async def generate_anime_to_real(input_image: Image.Image, progress=None):
    """Convert anime character to real person"""
    async for result in generic_image_processing(
        input_image, "Anime to Real", submit_anime_to_real_task, (), progress
    ):
        yield result

async def generate_real_to_anime(input_image: Image.Image, progress=None):
    """Convert real person to anime character"""
    async for result in generic_image_processing(
        input_image, "Real to Anime", submit_real_to_anime_task, (), progress
    ):
        yield result

# Five view generation needs special handling
async def generate_five_view(input_image: Image.Image, progress=None):
    """Generate five view angles from portrait"""
    async for result in generic_image_processing(
        input_image, "Five-View Generation", submit_five_view_generation_task, (), progress
    ):
        yield result

async def generate_figure_3d(input_image: Image.Image, figure_style: str, resolution: str, progress=None):
    """Generate 3D figure from 2D character image"""
    async for result in generic_image_processing(
        input_image, "2D to 3D Figure", submit_figure_3d_generation_task, (figure_style, resolution), progress
    ):
        yield result

# Character figure collaboration generation
async def generate_character_figure_collaboration(input_image: Image.Image, progress=None):
    """Generate character figure collaboration image"""
    async for result in generic_image_processing(
        input_image, "Character Figure Collaboration", submit_character_figure_collaboration_task, (), progress
    ):
        yield result


def placeholder_handler(*args):
    """Placeholder function for AI processing"""
    # Suppress unused arguments warning
    _ = args
    return "Feature under development, stay tuned!", gr.update(visible=True)

def create_text_to_image_interface():
    """Create text-to-image interface"""
    with gr.Column():
        gr.Markdown("## 📝 Text to Image")
        gr.Markdown("Enter a textual description and let AI generate an image for you")

        with gr.Row():
            with gr.Column(scale=2):
                prompt_input = gr.Textbox(
                    label="Image Description",
                    placeholder="Describe the image you want in detail, e.g., a cute cat playing in a garden, anime style, high-quality details",
                    lines=4,
                    max_lines=6
                )

                resolution_input = gr.Dropdown(
                    label="Resolution",
                    choices=[
                        "portrait - 896x1152 (3:4)",
                        "square - 1024x1024 (1:1)",
                        "landscape - 1152x896 (4:3)"
                    ],
                    value="square - 1024x1024 (1:1)",
                    interactive=True
                )

                with gr.Row():
                    generate_btn = gr.Button("🚀 Generate Image", variant="primary", scale=2)
                    cancel_btn = gr.Button("Cancel", variant="secondary", scale=1, visible=False)

                status_info = gr.Markdown("")

            with gr.Column(scale=3):
                result_image = gr.Image(
                    label="Result",
                    show_label=True,
                    show_download_button=True,
                    show_share_button=True
                )

                image_info = gr.Markdown("Waiting for image generation...")

        # Bind events
        generate_btn.click(
            fn=generate_text_to_image,
            inputs=[prompt_input, resolution_input],
            outputs=[result_image, status_info, image_info, generate_btn, cancel_btn],
            show_progress=True
        )

        cancel_btn.click(
            fn=cancel_current_task,
            outputs=[generate_btn, cancel_btn, status_info],
            queue=False
        )

        return gr.Column()

def switch_to_function(function_name: str):
    """Switch to a specific function and show its interface"""
    if function_name == "text_to_image":
        interface_html = """
        <div id="text-to-image-interface">
            <h2>📝 Text to Image</h2>
            <p>Enter a textual description and let AI generate an image for you</p>
            <div>
                <p><strong>How to use:</strong></p>
                <ul>
                    <li>Describe the image you want in detail in the input box below</li>
                    <li>Select an appropriate resolution</li>
                    <li>Click the "Generate Image" button to start</li>
                    <li>Generation typically takes 3–10 minutes; please wait patiently</li>
                </ul>
            </div>
        </div>
        """
    else:
        function_info = {
            "image_convert": "Processing: Image to Image - Upload an image for intelligent transformation",
            "five_view": "👁️ Five-View Generation - Upload a portrait to generate 5 viewpoints",
            "photo_style": "Photo Style Transfer - Apply professional photography styles",
            "interior": "Interior Design Rendering - Upload a white model to generate design renders",
            "watermark": "Watermark Removal - Detect and remove watermarks intelligently",
            "line_art": "Line Art Conversion - Convert photos into clean line art",
            "expand": "Image Outpainting - Extend image boundaries coherently",
            "anime_to_real": "Anime to Real - Convert anime characters to realistic humans",
            "real_to_anime": "Real to Anime - Convert real photos to anime style"
        }

        description = function_info.get(function_name, "Unknown function")
        interface_html = (
            f"<div class='welcome-container'>"
            f"<h2 class='welcome-title'>{description}</h2><p class='welcome-subtitle'>Feature under development, stay tuned!</p></div>"
        )

    # Hide welcome content and show dynamic content
    return (
        gr.update(visible=False),  # welcome_content
        gr.update(visible=True),   # dynamic_content
        interface_html
    )

# ============================================================================
# Main UI Creation
# ============================================================================

def create_main_interface():
    """Create the main Gradio interface with sidebar layout"""

    # Create custom theme
    custom_theme = create_custom_theme()

    # No custom CSS or JavaScript - use Gradio's default styling

    with gr.Blocks(
        title=CONFIG.APP_TITLE,
        theme=custom_theme,
        fill_width=True
    ) as interface:

        # Main layout with sidebar using Row and Column
        with gr.Row():
            # Sidebar column
            with gr.Column(scale=1, min_width=250):
                gr.Markdown("# AI Toolbox")
                gr.Markdown("Choose a feature below to get started")

                # Creation Tools group
                gr.Markdown("## Creation Tools")
                with gr.Group():
                    text_to_image_btn = gr.Button("Text to Image", size="sm", variant="secondary")
                    image_convert_btn = gr.Button("Image to Image", size="sm", variant="secondary")
                    five_view_btn_sidebar = gr.Button("Five-View Generation", size="sm", variant="secondary")
                    figure_3d_btn_sidebar = gr.Button("2D to 3D Figure", size="sm", variant="secondary")
                    character_figure_btn_sidebar = gr.Button("Character Figure Collaboration", size="sm", variant="secondary")


                gr.Markdown("---")

                # Style Transfer group
                gr.Markdown("## Style Transfer")
                with gr.Group():
                    photo_style_btn_sidebar = gr.Button("Photo Style", size="sm", variant="secondary")
                    interior_btn_sidebar = gr.Button("Interior Design", size="sm", variant="secondary")

                gr.Markdown("---")

                # Image Processing group
                gr.Markdown("## Image Processing")
                with gr.Group():
                    watermark_btn_sidebar = gr.Button("Watermark Removal", size="sm", variant="secondary")
                    line_art_btn_sidebar = gr.Button("Line Art Conversion", size="sm", variant="secondary")
                    expand_btn_sidebar = gr.Button("Image Outpainting", size="sm", variant="secondary")

                gr.Markdown("---")

                # Anime Conversion group
                gr.Markdown("## Anime Conversion")
                with gr.Group():
                    anime_to_real_btn_sidebar = gr.Button("Anime to Real", size="sm", variant="secondary")
                    real_to_anime_btn_sidebar = gr.Button("Real to Anime", size="sm", variant="secondary")

            # Main content area
            with gr.Column(scale=4):
                # 欢迎页面 - 使用推荐的elem_id方法
                welcome_content = gr.HTML("""
                    <div id=\"welcome-page\">
                        <h1 class=\"app-title\">AI Image Generator</h1>
                        <p class=\"app-subtitle\">Select a feature on the left to start your AI creation journey</p>
                        <div class=\"feature-grid\">
                            <div class=\"feature-card\">
                                <h3>Creation Tools</h3>
                                <p>Text to Image, Image to Image, Multi-view Generation</p>
                            </div>
                            <div class=\"feature-card\">
                                <h3>Style Transfer</h3>
                                <p>Photo Style, Interior Design</p>
                            </div>
                            <div class=\"feature-card\">
                                <h3>Image Processing</h3>
                                <p>Watermark Removal, Line Art, Outpainting</p>
                            </div>
                            <div class=\"feature-card\">
                                <h3>Anime Conversion</h3>
                                <p>Anime to Real, Real to Anime</p>
                            </div>
                        </div>
                    </div>
                """, elem_id="welcome-container")

                # Dynamic content area (initially hidden)
                dynamic_content = gr.HTML(visible=False)

                # 文本生成图像功能区域（初始隐藏）
                with gr.Column(visible=False) as text_to_image_interface:
                    gr.Markdown("## 📝 Text to Image")
                    gr.Markdown("Enter a textual description and let AI generate an image for you")

                    with gr.Row():
                        with gr.Column(scale=2):
                                prompt_input = gr.Textbox(
                                    label="Image Description",
                                    placeholder="Describe the image you want in detail, e.g., a cute cat playing in a garden, anime style, high-quality details",
                                    lines=4,
                                    max_lines=6
                                )

                                resolution_input = gr.Dropdown(
                                    label="Resolution",
                                    choices=[
                                        "portrait - 768x1344 (9:16)",
                                        "portrait - 896x1152 (3:4)",
                                        "square - 1024x1024 (1:1)",
                                        "landscape - 1152x896 (4:3)",
                                        "landscape - 1216x832 (3:2)",
                                        "landscape - 1344x768 (16:9)",
                                        "landscape - 1536x640 (21:9)"
                                    ],
                                    value="square - 1024x1024 (1:1)",
                                    interactive=True
                                )

                                with gr.Row():
                                    generate_btn = gr.Button("Generate Image", variant="primary", scale=2)
                                    cancel_btn = gr.Button("Cancel", variant="secondary", scale=1, visible=False)

                                status_info = gr.Markdown("")

                        with gr.Column(scale=3):
                            result_image = gr.Image(
                                label="Result",
                                show_label=True,
                                show_download_button=True,
                                show_share_button=True
                            )

                            image_info = gr.Markdown("""
                            ### 💡 Tips
                            - Be descriptive: the more detailed the description, the better the results
                            - Style keywords: e.g., \"high-definition photography\", \"anime style\", \"oil painting style\"
                            - Composition: describe subject pose, scene layout, and lighting
                            - Quality hints: e.g., \"4K quality\", \"high-detail\", \"professional photography\"
                            - Processing time: typically 3–10 minutes. Please wait patiently
                            """, visible=True)

                    # 添加文本生成图像的examples
                    text_to_image_examples_input_only = [[example[0], example[1]] for example in TEXT_TO_IMAGE_EXAMPLES_WITH_RESULTS]

                    gr.Examples(
                        examples=text_to_image_examples_input_only,
                        inputs=[prompt_input, resolution_input],
                        outputs=result_image,
                        fn=load_example_result,
                        label="Example Prompts - Click to preview",
                        examples_per_page=6,
                        cache_examples=True
                    )

                # 图像转换功能区域（初始隐藏）
                with gr.Column(visible=False) as image_convert_interface:
                    gr.Markdown("## Image to Image")
                    gr.Markdown("Upload an image and let AI intelligently transform it")

                    with gr.Row():
                        with gr.Column(scale=2):
                            convert_input = gr.Image(
                                label="Upload Image",
                                type="pil",
                                sources=["upload", "clipboard"],
                                height=250
                            )

                            with gr.Row():
                                convert_btn = gr.Button("Transform Image", variant="primary", scale=2)
                                convert_cancel_btn = gr.Button("Cancel", variant="secondary", scale=1, visible=False)

                            convert_status = gr.Markdown("")

                        with gr.Column(scale=3):
                            convert_result = gr.Image(
                                label="Transformed Result",
                                show_label=True,
                                show_download_button=True,
                                show_share_button=True
                            )

                            convert_info = gr.Markdown("""
                            ### 💡 Tips
                            - Supported formats: PNG, JPEG, JPG, WEBP
                            - Recommended size: 512x512 to 1536x1536 pixels
                            - File size: recommended under 10MB
                            - Image quality: higher clarity yields better results
                            - Processing time: typically 1–3 minutes
                            """, visible=True)

                # 五视角生成功能区域（初始隐藏）
                with gr.Column(visible=False) as five_view_interface:
                    gr.Markdown("## Five-View Generation")
                    gr.Markdown("Upload a portrait to generate 5 different viewpoints")

                    with gr.Row():
                        with gr.Column(scale=2):
                            five_view_input = gr.Image(
                                label="Upload Portrait",
                                type="pil",
                                sources=["upload", "clipboard"],
                                height=250
                            )

                            with gr.Row():
                                five_view_btn = gr.Button("Generate Five Views", variant="primary", scale=2)
                                five_view_cancel_btn = gr.Button("Cancel", variant="secondary", scale=1, visible=False)

                            five_view_status = gr.Markdown("")

                        with gr.Column(scale=3):
                            five_view_result = gr.Image(
                                label="Five-View Result",
                                show_label=True,
                                show_download_button=True,
                                show_share_button=True
                            )

                            five_view_info = gr.Markdown("""
                            ### 💡 Tips
                            - Portrait: upload a clear portrait (front-facing preferred)
                            - Supported types: real persons, anime/game characters
                            - Recommended size: 512x512 to 1024x1024 pixels
                            - Background: simple backgrounds work better
                            - Processing time: typically 1–3 minutes. Please wait patiently
                            """, visible=True)

                    # 添加五视角生成的examples
                    five_view_examples_input_only = [[example[0]] for example in FIVE_VIEW_GENERATION_EXAMPLES_WITH_RESULTS]

                    gr.Examples(
                        examples=five_view_examples_input_only,
                        inputs=[five_view_input],
                        outputs=[five_view_input, five_view_result],
                        fn=load_five_view_example,
                        label="💡 Five-View Examples - Click to preview",
                        examples_per_page=3,
                        cache_examples=True
                    )

                # 2D转3D手办功能区域（初始隐藏）
                with gr.Column(visible=False) as figure_3d_interface:
                    gr.Markdown("## 2D to 3D Figure Generation")
                    gr.Markdown("Convert 2D character images into 3D figure renders with various scene styles")

                    with gr.Row():
                                with gr.Column(scale=2):
                                    figure_3d_input = gr.Image(
                                        label="Upload 2D Character Image",
                                        type="pil",
                                        sources=["upload", "clipboard"],
                                        height=250
                                    )

                                    figure_3d_style = gr.Dropdown(
                                        label="Select Figure Style",
                                        choices=FIGURE_3D_STYLE_CHOICES,
                                        value="professional_lighting",
                                        info="Choose the 3D figure scene style"
                                    )

                                    figure_3d_resolution = gr.Dropdown(
                                        label="Resolution",
                                        choices=[
                                            "portrait - 768x1344 (9:16)",
                                            "portrait - 896x1152 (3:4)",
                                            "square - 1024x1024 (1:1)",
                                            "landscape - 1152x896 (4:3)",
                                            "landscape - 1216x832 (3:2)",
                                            "landscape - 1344x768 (16:9)",
                                            "landscape - 1536x640 (21:9)"
                                        ],
                                        value="square - 1024x1024 (1:1)",
                                        info="Choose the output image resolution"
                                    )

                                    with gr.Row():
                                        figure_3d_btn = gr.Button("Generate 3D Figure", variant="primary", scale=2)
                                        figure_3d_cancel_btn = gr.Button("Cancel", variant="secondary", scale=1, visible=False)

                                    figure_3d_status = gr.Markdown("")

                                with gr.Column(scale=3):
                                    figure_3d_result = gr.Image(
                                        label="3D Figure Result",
                                        show_label=True,
                                        show_download_button=True,
                                        show_share_button=True
                                    )

                                    figure_3d_info = gr.Markdown("""
                                    ### 💡 Tips
                                    - Character: upload clear 2D character images (anime, game characters, illustrations)
                                    - Supported formats: PNG, JPEG, JPG, WEBP
                                    - Recommended size: 512x512 to 1536x1536 pixels
                                    - File size: under 10MB recommended
                                    - Processing time: typically 1–3 minutes
                                    - Scene styles: professional lighting, collector shelf, desktop display, miniature adventure, Alice's tea party
                                    """, visible=True)

                    # 添加3D手办生成的examples - 使用不同分辨率展示多样性
                    figure_3d_examples_input_only = [
                        [FIGURE_3D_EXAMPLES_WITH_RESULTS[0][0], FIGURE_3D_EXAMPLES_WITH_RESULTS[0][1], "square - 1024x1024 (1:1)"],
                        [FIGURE_3D_EXAMPLES_WITH_RESULTS[1][0], FIGURE_3D_EXAMPLES_WITH_RESULTS[1][1], "landscape - 1152x896 (4:3)"] if len(FIGURE_3D_EXAMPLES_WITH_RESULTS) > 1 else [FIGURE_3D_EXAMPLES_WITH_RESULTS[0][0], FIGURE_3D_EXAMPLES_WITH_RESULTS[0][1], "landscape - 1152x896 (4:3)"],
                        [FIGURE_3D_EXAMPLES_WITH_RESULTS[2][0], FIGURE_3D_EXAMPLES_WITH_RESULTS[2][1], "portrait - 896x1152 (3:4)"] if len(FIGURE_3D_EXAMPLES_WITH_RESULTS) > 2 else [FIGURE_3D_EXAMPLES_WITH_RESULTS[0][0], FIGURE_3D_EXAMPLES_WITH_RESULTS[0][1], "portrait - 896x1152 (3:4)"],
                        [FIGURE_3D_EXAMPLES_WITH_RESULTS[3][0], FIGURE_3D_EXAMPLES_WITH_RESULTS[3][1], "landscape - 1344x768 (16:9)"] if len(FIGURE_3D_EXAMPLES_WITH_RESULTS) > 3 else [FIGURE_3D_EXAMPLES_WITH_RESULTS[0][0], FIGURE_3D_EXAMPLES_WITH_RESULTS[0][1], "landscape - 1344x768 (16:9)"],
                        [FIGURE_3D_EXAMPLES_WITH_RESULTS[4][0], FIGURE_3D_EXAMPLES_WITH_RESULTS[4][1], "portrait - 768x1344 (9:16)"] if len(FIGURE_3D_EXAMPLES_WITH_RESULTS) > 4 else [FIGURE_3D_EXAMPLES_WITH_RESULTS[0][0], FIGURE_3D_EXAMPLES_WITH_RESULTS[0][1], "portrait - 768x1344 (9:16)"]
                    ][:len(FIGURE_3D_EXAMPLES_WITH_RESULTS)]

                    gr.Examples(
                        examples=figure_3d_examples_input_only,
                        inputs=[figure_3d_input, figure_3d_style, figure_3d_resolution],
                        outputs=[figure_3d_input, figure_3d_style, figure_3d_resolution, figure_3d_result],
                        fn=load_figure_3d_example,
                        label="🎨 3D Figure Examples - Click to preview different styles",
                        examples_per_page=5,
                        cache_examples=True
                    )

                # 人物手办合影功能区域（初始隐藏）
                with gr.Column(visible=False) as character_figure_collaboration_interface:
                    gr.Markdown("## Character Figure Collaboration")
                    gr.Markdown("Generate collaboration photos between characters and figures")

                    with gr.Row():
                        with gr.Column(scale=2):
                            character_figure_input = gr.Image(
                                label="Upload Character Full-Body Photo",
                                type="pil",
                                sources=["upload", "clipboard"],
                                height=250
                            )

                            with gr.Row():
                                character_figure_btn = gr.Button("Generate Collaboration Photo", variant="primary", scale=2)
                                character_figure_cancel_btn = gr.Button("Cancel", variant="secondary", scale=1, visible=False)

                            character_figure_status = gr.Markdown("")

                        with gr.Column(scale=3):
                            character_figure_result = gr.Image(
                                label="Collaboration Result",
                                show_label=True,
                                show_download_button=True,
                                show_share_button=True
                            )

                            character_figure_info = gr.Markdown("""
                            ### 💡 Tips
                            - Upload clear full-body character photos (real person or virtual character)
                            - Supported formats: PNG, JPEG, JPG, WEBP
                            - Recommended size: 512x512 to 1536x1536 pixels
                            - File size: under 10MB recommended
                            - Processing time: typically 1–3 minutes
                            - The AI will generate a collaboration photo with the character and a figure
                            """, visible=True)

                    # 添加人物手办合影的examples
                    if CHARACTER_FIGURE_COLLABORATION_EXAMPLES_WITH_RESULTS:  # 只有当有examples时才显示
                        gr.Examples(
                            examples=CHARACTER_FIGURE_COLLABORATION_EXAMPLES_WITH_RESULTS,
                            inputs=[character_figure_input],
                            outputs=[character_figure_input, character_figure_result],
                            fn=load_character_figure_collaboration_example,
                            label="🎨 Character Figure Collaboration Examples - Click to preview",
                            examples_per_page=5,
                            cache_examples=True
                        )

                # 摄影风格转换功能区域（初始隐藏）
                with gr.Column(visible=False) as photo_style_interface:
                    gr.Markdown("## Photo Style Transfer")
                    gr.Markdown("Apply professional photography styles to your photos")

                    with gr.Row():
                                with gr.Column(scale=2):
                                    photo_style_input = gr.Image(
                                        label="Upload Photo",
                                        type="pil",
                                        sources=["upload", "clipboard"],
                                        height=250
                                    )

                                    photo_style_dropdown = gr.Dropdown(
                                        label="Select Photo Style",
                                        choices=PHOTO_STYLE_CHOICES,
                                        value="camera_movement",
                                        info="Choose the photography style to apply"
                                    )

                                    with gr.Row():
                                        photo_style_btn = gr.Button("Apply Style", variant="primary", scale=2)
                                        photo_style_cancel_btn = gr.Button("Cancel", variant="secondary", scale=1, visible=False)

                                    photo_style_status = gr.Markdown("")

                                with gr.Column(scale=3):
                                    photo_style_result = gr.Image(
                                        label="Style Transfer Result",
                                        show_label=True,
                                        show_download_button=True,
                                        show_share_button=True
                                    )

                                    photo_style_info = gr.Markdown("""
                                    ### 💡 Tips
                                    - Photo types: portraits, landscapes, product photos, etc.
                                    - Recommended quality: higher resolution photos yield better results
                                    - Style selection: choose a style that matches the photo type
                                    - Lighting: well-lit photos convert better
                                    - Processing time: typically 1–2 minutes
                                    """, visible=True)

                # 室内设计渲染功能区域（初始隐藏）
                with gr.Column(visible=False) as interior_interface:
                    gr.Markdown("## Interior Design Rendering")
                    gr.Markdown("Upload a white model interior image to generate design renders")

                    with gr.Row():
                        with gr.Column(scale=2):
                            interior_input = gr.Image(
                                label="Upload Interior White Model",
                                type="pil",
                                sources=["upload", "clipboard"],
                                height=250
                            )

                            interior_style = gr.Dropdown(
                                label="Select Interior Style",
                                choices=INTERIOR_DESIGN_STYLE_CHOICES,
                                value="japanese_wabi_sabi",  # keep default key
                                info="Choose the interior design style to apply"
                            )

                            with gr.Row():
                                interior_btn = gr.Button("Render Design", variant="primary", scale=2)
                                interior_cancel_btn = gr.Button("Cancel", variant="secondary", scale=1, visible=False)

                            interior_status = gr.Markdown("")

                        with gr.Column(scale=3):
                            interior_result = gr.Image(
                                label="Rendered Result",
                                show_label=True,
                                show_download_button=True,
                                show_share_button=True
                            )

                            interior_info = gr.Markdown("""
                            ### 💡 Tips
                            - Input: upload a white model or line art of the interior
                            - Style description: describe the desired design style in detail
                            - Space type: living room, bedroom, kitchen, office, etc.
                            - Style keywords: modern minimalism, Nordic, classic Chinese, etc.
                            - Processing time: typically 2–5 minutes
                            """, visible=True)

                    # 添加室内设计的examples

                    interior_design_examples_input_only = [[example[0], example[1]] for example in INTERIOR_DESIGN_EXAMPLES_WITH_RESULTS]

                    gr.Examples(
                        examples=interior_design_examples_input_only,
                        inputs=[interior_input, interior_style],
                        outputs=[interior_input, interior_result],
                        fn=load_interior_design_example_result,
                        label="💡 Interior Design Examples - Click to preview",
                        examples_per_page=4,
                        cache_examples=True
                    )

                # 水印移除功能区域（初始隐藏）
                with gr.Column(visible=False) as watermark_interface:
                    gr.Markdown("## Watermark Removal")
                    gr.Markdown("Intelligently detect and remove watermarks from images")

                    with gr.Row():
                                with gr.Column(scale=2):
                                    watermark_input = gr.Image(
                                        label="Upload Image with Watermark",
                                        type="pil",
                                        sources=["upload", "clipboard"],
                                        height=250
                                    )

                                    with gr.Row():
                                        watermark_btn = gr.Button("Remove Watermark", variant="primary", scale=2)
                                        watermark_cancel_btn = gr.Button("Cancel", variant="secondary", scale=1, visible=False)

                                    watermark_status = gr.Markdown("")

                                with gr.Column(scale=3):
                                    watermark_result = gr.Image(
                                        label="Watermark Removal Result",
                                        show_label=True,
                                        show_download_button=True,
                                        show_share_button=True
                                    )

                                    watermark_info = gr.Markdown("""
                                    ### 💡 Tips
                                    - Watermark types: supports text and icon watermarks
                                    - Image quality: higher quality images yield better results
                                    - Watermark location: AI will automatically detect and remove
                                    - Background complexity: simpler backgrounds remove better
                                    - Processing time: typically 1–3 minutes
                                    """, visible=True)

                # 线稿转换功能区域（初始隐藏）
                with gr.Column(visible=False) as line_art_interface:
                    gr.Markdown("## Line Art Conversion")
                    gr.Markdown("Convert your photo into clean line art")

                    with gr.Row():
                        with gr.Column(scale=2):
                            line_art_input = gr.Image(
                                label="Upload Photo",
                                type="pil",
                                sources=["upload", "clipboard"],
                                height=250
                            )

                            with gr.Row():
                                line_art_btn = gr.Button("Convert to Line Art", variant="primary", scale=2)
                                line_art_cancel_btn = gr.Button("Cancel", variant="secondary", scale=1, visible=False)

                            line_art_status = gr.Markdown("")

                        with gr.Column(scale=3):
                            line_art_result = gr.Image(
                                label="Line Art Result",
                                show_label=True,
                                show_download_button=True,
                                show_share_button=True
                            )

                            line_art_info = gr.Markdown("""
                            ### 💡 Tips
                            - Photo types: portraits, landscapes, architecture, objects
                            - Image clarity: higher clarity yields better line art
                            - Contrast: higher contrast improves line extraction
                            - Complexity: rich details produce better line art
                            - Processing time: typically 1–2 minutes
                            """, visible=True)

                    # 添加线稿转换的examples
                    gr.Examples(
                        examples=LINE_ART_CONVERSION_EXAMPLES_WITH_RESULTS,
                        inputs=[line_art_input],
                        outputs=[line_art_input, line_art_result],
                        fn=load_line_art_example_result,
                        label="💡 Line Art Examples - Click to preview",
                        examples_per_page=3,
                        cache_examples=True
                    )

                # 图像扩展功能区域（初始隐藏）
                with gr.Column(visible=False) as expand_interface:
                    gr.Markdown("## Image Outpainting")
                    gr.Markdown("Intelligently extend image boundaries while keeping content coherent")

                    with gr.Row():
                        with gr.Column(scale=2):
                            expand_input = gr.Image(
                                label="Upload Image to Outpaint",
                                type="pil",
                                sources=["upload", "clipboard"],
                                height=250
                            )

                            expand_height = gr.Slider(
                                label="Outpaint Height (%)",
                                minimum=0.0,
                                maximum=1.0,
                                value=0.2,
                                step=0.1,
                                interactive=True,
                                info="Percentage to extend vertically"
                            )

                            expand_width = gr.Slider(
                                label="Outpaint Width (%)",
                                minimum=0.0,
                                maximum=1.0,
                                value=0.3,
                                step=0.1,
                                interactive=True,
                                info="Percentage to extend horizontally"
                            )

                            with gr.Row():
                                expand_btn = gr.Button("Outpaint Image", variant="primary", scale=2)
                                expand_cancel_btn = gr.Button("Cancel", variant="secondary", scale=1, visible=False)

                            expand_status = gr.Markdown("")

                        with gr.Column(scale=3):
                            expand_result = gr.Image(
                                label="Outpainting Result",
                                show_label=True,
                                show_download_button=True,
                                show_share_button=True
                            )

                            expand_info = gr.Markdown("""
                            ### 💡 Tips
                            - Direction: choose which sides to extend (top/bottom/left/right)
                            - Pixel amount: 64–512 pixels recommended; too large may impact quality
                            - Edges: richer edge content yields more natural results
                            - Coherence: AI will fill in content consistent with the original
                            - Processing time: typically 2–4 minutes
                            """, visible=True)

                    # 图像扩展Examples - 修复inputs/outputs匹配问题
                    gr.Examples(
                        examples=IMAGE_OUTPAINTING_EXAMPLES_WITH_RESULTS,
                        inputs=[expand_input, expand_height, expand_width, expand_result],
                        outputs=[expand_input, expand_height, expand_width, expand_result],
                        fn=load_outpainting_example_for_gradio,
                        label="💡 Outpainting Examples - Click to preview",
                        examples_per_page=3,
                        cache_examples=False  # Disable caching to avoid serialization issues
                    )

                # 二次元转真人功能区域（初始隐藏）
                with gr.Column(visible=False) as anime_to_real_interface:
                    gr.Markdown("## Anime to Real")
                    gr.Markdown("Convert anime characters to realistic humans")

                    with gr.Row():
                        with gr.Column(scale=2):
                            anime_to_real_input = gr.Image(
                                label="Upload Anime Character",
                                type="pil",
                                sources=["upload", "clipboard"],
                                height=250
                            )

                            with gr.Row():
                                anime_to_real_btn = gr.Button("Convert to Real", variant="primary", scale=2)
                                anime_to_real_cancel_btn = gr.Button("Cancel", variant="secondary", scale=1, visible=False)

                            anime_to_real_status = gr.Markdown("")

                        with gr.Column(scale=3):
                            anime_to_real_result = gr.Image(
                                label="Anime to Real Result",
                                show_label=True,
                                show_download_button=True,
                                show_share_button=True
                            )

                            anime_to_real_info = gr.Markdown("""
                            ### 💡 Tips
                            - Anime character: supports various anime/game characters
                            - Facial features: clearer facial features yield better conversion
                            - Image quality: higher-quality anime images perform better
                            - Character type: humanoid characters convert best
                            - Processing time: typically 1–3 minutes
                            """, visible=True)

                    # 添加二次元转真人的examples
                    gr.Examples(
                        examples=ANIME_TO_REAL_EXAMPLES_WITH_RESULTS,
                        inputs=[anime_to_real_input],
                        outputs=[anime_to_real_input, anime_to_real_result],
                        fn=load_anime_to_real_example_result,
                        label="💡 Anime to Real Examples - Click to preview",
                        examples_per_page=1,
                        cache_examples=True
                    )

                # 真人转动漫功能区域（初始隐藏）
                with gr.Column(visible=False) as real_to_anime_interface:
                    gr.Markdown("## Real to Anime")
                    gr.Markdown("Convert real photos into anime style")

                    with gr.Row():
                        with gr.Column(scale=2):
                            real_to_anime_input = gr.Image(
                                label="Upload Real Photo",
                                type="pil",
                                sources=["upload", "clipboard"],
                                height=250
                            )

                            with gr.Row():
                                real_to_anime_btn = gr.Button("Convert to Anime", variant="primary", scale=2)
                                real_to_anime_cancel_btn = gr.Button("Cancel", variant="secondary", scale=1, visible=False)

                            real_to_anime_status = gr.Markdown("")

                        with gr.Column(scale=3):
                            real_to_anime_result = gr.Image(
                                label="Real to Anime Result",
                                show_label=True,
                                show_download_button=True,
                                show_share_button=True
                            )

                            real_to_anime_info = gr.Markdown("""
                            ### 💡 Tips
                            - Real photo: upload a clear portrait
                            - Lighting: evenly lit photos work better
                            - Pose: front or side portraits convert best
                            - Background: simple backgrounds help the subject stand out
                            - Processing time: typically 1–3 minutes
                            """, visible=True)

                    # 添加真人转动漫的examples
                    gr.Examples(
                        examples=REAL_TO_ANIME_EXAMPLES_WITH_RESULTS,
                        inputs=[real_to_anime_input],
                        outputs=[real_to_anime_input, real_to_anime_result],
                        fn=load_real_to_anime_example_result,
                        label="💡 Real to Anime Examples - Click to preview",
                        examples_per_page=3,
                        cache_examples=True
                    )

        # Bind events to sidebar buttons within the Blocks context
        # pylint: disable=no-member

        # Define all interfaces in consistent order for interface switching
        all_interface_outputs = [
            welcome_content,           # 0
            dynamic_content,           # 1
            text_to_image_interface,   # 2
            image_convert_interface,   # 3
            five_view_interface,       # 4
            figure_3d_interface,       # 5
            character_figure_collaboration_interface,  # 6
            photo_style_interface,     # 7
            interior_interface,        # 8
            watermark_interface,       # 9
            line_art_interface,        # 10
            expand_interface,          # 11
            anime_to_real_interface,   # 12
            real_to_anime_interface    # 13
        ]

        # Helper function to show specific interface
        def show_interface(interface_index):
            """Show specific interface by index, hide all others"""
            updates = []
            for i in range(len(all_interface_outputs)):
                if i == interface_index:
                    updates.append(gr.update(visible=True))
                else:
                    updates.append(gr.update(visible=False))
            return tuple(updates)

        # Text-to-image events
        text_to_image_btn.click(
            fn=lambda: show_interface(2),  # text_to_image_interface is at index 2
            outputs=all_interface_outputs
        )

        generate_btn.click(
            fn=generate_text_to_image,
            inputs=[prompt_input, resolution_input],
            outputs=[result_image, status_info, image_info, generate_btn, cancel_btn],
            show_progress=True
        )

        cancel_btn.click(
            fn=cancel_current_task,
            outputs=[generate_btn, cancel_btn, status_info],
            queue=False
        )

        # Image convert events
        image_convert_btn.click(
            fn=lambda: show_interface(3),  # image_convert_interface is at index 3
            outputs=all_interface_outputs
        )

        convert_btn.click(
            fn=generate_image_to_image,
            inputs=[convert_input],
            outputs=[convert_result, convert_status, convert_info, convert_btn, convert_cancel_btn],
            show_progress=True
        )

        convert_cancel_btn.click(
            fn=cancel_current_task,
            outputs=[convert_btn, convert_cancel_btn, convert_status],
            queue=False
        )

        # Five view events
        five_view_btn_sidebar.click(
            fn=lambda: show_interface(4),  # five_view_interface is at index 4
            outputs=all_interface_outputs
        )



        five_view_btn.click(
            fn=generate_five_view,
            inputs=[five_view_input],
            outputs=[five_view_result, five_view_status, five_view_info, five_view_btn, five_view_cancel_btn],
            show_progress=True
        )

        five_view_cancel_btn.click(
            fn=cancel_current_task,
            outputs=[five_view_btn, five_view_cancel_btn, five_view_status],
            queue=False
        )

        # Figure 3D events
        figure_3d_btn_sidebar.click(
            fn=lambda: show_interface(5),  # figure_3d_interface is at index 5
            outputs=all_interface_outputs
        )

        figure_3d_btn.click(
            fn=generate_figure_3d,
            inputs=[figure_3d_input, figure_3d_style, figure_3d_resolution],
            outputs=[figure_3d_result, figure_3d_status, figure_3d_info, figure_3d_btn, figure_3d_cancel_btn],
            show_progress=True
        )

        figure_3d_cancel_btn.click(
            fn=cancel_current_task,
            outputs=[figure_3d_btn, figure_3d_cancel_btn, figure_3d_status],
            queue=False
        )

        # Character Figure Collaboration events
        character_figure_btn_sidebar.click(
            fn=lambda: show_interface(6),  # character_figure_collaboration_interface is at index 6
            outputs=all_interface_outputs
        )

        character_figure_btn.click(
            fn=generate_character_figure_collaboration,
            inputs=[character_figure_input],
            outputs=[character_figure_result, character_figure_status, character_figure_info, character_figure_btn, character_figure_cancel_btn],
            show_progress=True
        )

        character_figure_cancel_btn.click(
            fn=cancel_current_task,
            outputs=[character_figure_btn, character_figure_cancel_btn, character_figure_status],
            queue=False
        )

        # Photo style events
        photo_style_btn_sidebar.click(
            fn=lambda: show_interface(7),  # photo_style_interface is at index 7
            outputs=all_interface_outputs
        )

        photo_style_btn.click(
            fn=generate_photo_style,
            inputs=[photo_style_input, photo_style_dropdown],
            outputs=[photo_style_result, photo_style_status, photo_style_info, photo_style_btn, photo_style_cancel_btn],
            show_progress=True
        )

        photo_style_cancel_btn.click(
            fn=cancel_current_task,
            outputs=[photo_style_btn, photo_style_cancel_btn, photo_style_status],
            queue=False
        )
        # Interior design events
        interior_btn_sidebar.click(
            fn=lambda: show_interface(8),  # interior_interface is at index 8
            outputs=all_interface_outputs
        )

        interior_btn.click(
            fn=generate_interior_design,
            inputs=[interior_input, interior_style],
            outputs=[interior_result, interior_status, interior_info, interior_btn, interior_cancel_btn],
            show_progress=True
        )

        interior_cancel_btn.click(
            fn=cancel_current_task,
            outputs=[interior_btn, interior_cancel_btn, interior_status],
            queue=False
        )

        # Watermark removal events
        watermark_btn_sidebar.click(
            fn=lambda: show_interface(9),  # watermark_interface is at index 9
            outputs=all_interface_outputs
        )

        watermark_btn.click(
            fn=generate_watermark_removal,
            inputs=[watermark_input],
            outputs=[watermark_result, watermark_status, watermark_info, watermark_btn, watermark_cancel_btn],
            show_progress=True
        )

        watermark_cancel_btn.click(
            fn=cancel_current_task,
            outputs=[watermark_btn, watermark_cancel_btn, watermark_status],
            queue=False
        )

        # Line art events
        line_art_btn_sidebar.click(
            fn=lambda: show_interface(10),  # line_art_interface is at index 10
            outputs=all_interface_outputs
        )

        line_art_btn.click(
            fn=generate_line_art,
            inputs=[line_art_input],
            outputs=[line_art_result, line_art_status, line_art_info, line_art_btn, line_art_cancel_btn],
            show_progress=True
        )

        line_art_cancel_btn.click(
            fn=cancel_current_task,
            outputs=[line_art_btn, line_art_cancel_btn, line_art_status],
            queue=False
        )

        # Expand events
        expand_btn_sidebar.click(
            fn=lambda: show_interface(11),  # expand_interface is at index 11
            outputs=all_interface_outputs
        )

        expand_btn.click(
            fn=generate_image_outpainting,
            inputs=[expand_input, expand_height, expand_width],
            outputs=[expand_result, expand_status, expand_info, expand_btn, expand_cancel_btn],
            show_progress=True
        )

        expand_cancel_btn.click(
            fn=cancel_current_task,
            outputs=[expand_btn, expand_cancel_btn, expand_status],
            queue=False
        )

        # Anime to real events
        anime_to_real_btn_sidebar.click(
            fn=lambda: show_interface(12),  # anime_to_real_interface is at index 12
            outputs=all_interface_outputs
        )

        anime_to_real_btn.click(
            fn=generate_anime_to_real,
            inputs=[anime_to_real_input],
            outputs=[
                anime_to_real_result, anime_to_real_status, anime_to_real_info,
                anime_to_real_btn, anime_to_real_cancel_btn
            ],
            show_progress=True
        )

        anime_to_real_cancel_btn.click(
            fn=cancel_current_task,
            outputs=[anime_to_real_btn, anime_to_real_cancel_btn, anime_to_real_status],
            queue=False
        )

        # Real to anime events
        real_to_anime_btn_sidebar.click(
            fn=lambda: show_interface(13),  # real_to_anime_interface is at index 13
            outputs=all_interface_outputs
        )

        real_to_anime_btn.click(
            fn=generate_real_to_anime,
            inputs=[real_to_anime_input],
            outputs=[
                real_to_anime_result, real_to_anime_status, real_to_anime_info,
                real_to_anime_btn, real_to_anime_cancel_btn
            ],
            show_progress=True
        )

        real_to_anime_cancel_btn.click(
            fn=cancel_current_task,
            outputs=[real_to_anime_btn, real_to_anime_cancel_btn, real_to_anime_status],
            queue=False
        )


        # pylint: enable=no-member

        return interface, {
            # Sidebar buttons
            'text_to_image_btn': text_to_image_btn,
            'image_convert_btn': image_convert_btn,
            'five_view_btn_sidebar': five_view_btn_sidebar,
            'figure_3d_btn_sidebar': figure_3d_btn_sidebar,
            'character_figure_btn_sidebar': character_figure_btn_sidebar,

            'photo_style_btn_sidebar': photo_style_btn_sidebar,
            'interior_btn_sidebar': interior_btn_sidebar,
            'watermark_btn_sidebar': watermark_btn_sidebar,
            'line_art_btn_sidebar': line_art_btn_sidebar,
            'expand_btn_sidebar': expand_btn_sidebar,
            'anime_to_real_btn_sidebar': anime_to_real_btn_sidebar,
            'real_to_anime_btn_sidebar': real_to_anime_btn_sidebar,

            # Main content areas
            'welcome_content': welcome_content,
            'dynamic_content': dynamic_content,

            # All interface components
            'text_to_image_interface': text_to_image_interface,
            'image_convert_interface': image_convert_interface,
            'five_view_interface': five_view_interface,
            'figure_3d_interface': figure_3d_interface,
            'character_figure_collaboration_interface': character_figure_collaboration_interface,

            'photo_style_interface': photo_style_interface,
            'interior_interface': interior_interface,
            'watermark_interface': watermark_interface,
            'line_art_interface': line_art_interface,
            'expand_interface': expand_interface,
            'anime_to_real_interface': anime_to_real_interface,
            'real_to_anime_interface': real_to_anime_interface,

            # Text-to-image components
            'prompt_input': prompt_input,
            'resolution_input': resolution_input,
            'generate_btn': generate_btn,
            'cancel_btn': cancel_btn,
            'result_image': result_image,
            'status_info': status_info,
            'image_info': image_info,

            # Image convert components
            'convert_input': convert_input,
            'convert_btn': convert_btn,
            'convert_cancel_btn': convert_cancel_btn,
            'convert_result': convert_result,
            'convert_status': convert_status,
            'convert_info': convert_info,

            # Five view components
            'five_view_input': five_view_input,
            'five_view_btn': five_view_btn,
            'five_view_cancel_btn': five_view_cancel_btn,
            'five_view_result': five_view_result,
            'five_view_status': five_view_status,
            'five_view_info': five_view_info,

            # Photo style components
            'photo_style_input': photo_style_input,
            'photo_style_dropdown': photo_style_dropdown,
            'photo_style_btn': photo_style_btn,
            'photo_style_cancel_btn': photo_style_cancel_btn,
            'photo_style_result': photo_style_result,
            'photo_style_status': photo_style_status,
            'photo_style_info': photo_style_info,

            # Interior design components
            'interior_input': interior_input,
            'interior_style': interior_style,
            'interior_btn': interior_btn,
            'interior_cancel_btn': interior_cancel_btn,
            'interior_result': interior_result,
            'interior_status': interior_status,
            'interior_info': interior_info,

            # Watermark removal components
            'watermark_input': watermark_input,
            'watermark_btn': watermark_btn,
            'watermark_cancel_btn': watermark_cancel_btn,
            'watermark_result': watermark_result,
            'watermark_status': watermark_status,
            'watermark_info': watermark_info,

            # Line art conversion components
            'line_art_input': line_art_input,
            'line_art_btn': line_art_btn,
            'line_art_cancel_btn': line_art_cancel_btn,
            'line_art_result': line_art_result,
            'line_art_status': line_art_status,
            'line_art_info': line_art_info,

            # Image expansion components
            'expand_input': expand_input,
            'expand_height': expand_height,
            'expand_width': expand_width,
            'expand_btn': expand_btn,
            'expand_cancel_btn': expand_cancel_btn,
            'expand_result': expand_result,
            'expand_status': expand_status,
            'expand_info': expand_info,

            # Anime to real components
            'anime_to_real_input': anime_to_real_input,
            'anime_to_real_btn': anime_to_real_btn,
            'anime_to_real_cancel_btn': anime_to_real_cancel_btn,
            'anime_to_real_result': anime_to_real_result,
            'anime_to_real_status': anime_to_real_status,
            'anime_to_real_info': anime_to_real_info,

            # Real to anime components
            'real_to_anime_input': real_to_anime_input,
            'real_to_anime_btn': real_to_anime_btn,
            'real_to_anime_cancel_btn': real_to_anime_cancel_btn,
            'real_to_anime_result': real_to_anime_result,
            'real_to_anime_status': real_to_anime_status,
            'real_to_anime_info': real_to_anime_info
        }

# Create the main interface
demo, components = create_main_interface()


# =========================================================================
# Security Configuration
# =========================================================================
try:
    from fastapi import Request
    from starlette.responses import PlainTextResponse

    app = demo.app  # Gradio's underlying FastAPI app

    @app.middleware("http")
    async def block_gradio_settings(request: Request, call_next):
        path = request.url.path.lower()
        # Block known and future settings-related paths aggressively
        blocked_keywords = (
            "/settings",
            "/studio",
            "/screen",
            "/record",
        )
        if any(k in path for k in blocked_keywords):
            return PlainTextResponse("404 Not Found", status_code=404)
        return await call_next(request)

    print("🔐 Server-level interceptor enabled: /settings and related internal pages will return 404")
except Exception as _e:
    # If anything goes wrong, do not block app startup; log only
    print(f"⚠️ Failed to install Settings route interceptor: {_e}")

# ============================================================================
# Launch Configuration
# ============================================================================

if __name__ == "__main__":
    # Setup server configuration
    SERVER_NAME_CONFIG = CONFIG.SERVER_HOST
    SERVER_PORT_CONFIG = CONFIG.SERVER_PORT
    SHARE_CONFIG = CONFIG.ENABLE_SHARE

    # Print startup information
    print(f"🚀 Starting {CONFIG.APP_TITLE}")
    print(f"🌐 Access URL: http://{SERVER_NAME_CONFIG}:{SERVER_PORT_CONFIG}")
    if SHARE_CONFIG:
        print("🔗 Public share: enabled")
    else:
        print("💡 Tip: Local access only (more secure)")

    # Launch the application
    print("🚀 Launching AI Image Generator...")
    print(f"📍 Server: {SERVER_NAME_CONFIG}:{SERVER_PORT_CONFIG}")
    print("🎨 Forced light theme: enabled")
    print("🔒 Debug mode: disabled")

    try:
        demo.launch(
            server_name=SERVER_NAME_CONFIG,
            server_port=SERVER_PORT_CONFIG,
            share=SHARE_CONFIG,
            debug=False,  # Force disable debug mode
            show_error=False,  # Hide error details for production
            quiet=False  # Show basic launch info
        )
    except Exception as e:
        print(f"❌ Launch failed: {e}")
        import traceback
        traceback.print_exc()