"""
3D 模型优化服务 - HF Space 版本
Gradio + HF Hub API | 含用户建议反馈
"""
import os
import json
import uuid
import time
from datetime import datetime

import gradio as gr
from huggingface_hub import HfApi, list_repo_files

from feedback_util import fetch_public_feedback, submit_feedback

# === 预览配置 ===
PREVIEW_FORMATS = [".glb", ".gltf", ".obj"]
HF_RESOLVE_BASE = "https://huggingface.co/datasets"

# === 配置 ===
REPO_ID = "wangyiyi666/model-optimizer-queue"
REPO_TYPE = "dataset"
HF_TOKEN = os.environ.get("HF_TOKEN", "")
SUPPORTED_FORMATS = [".glb", ".gltf", ".fbx", ".obj"]

api = HfApi(token=HF_TOKEN)

# === 文件列表缓存（避免重复调用 HF API，防止超时/限流） ===
_files_cache = {"files": None, "ts": 0}
_FILES_CACHE_SEC = 10  # 缓存 10 秒


def _get_repo_files(force=False):
    """获取仓库文件列表（带缓存 + 超时保护）"""
    global _files_cache
    now = time.time()
    if not force and _files_cache["files"] and (now - _files_cache["ts"]) < _FILES_CACHE_SEC:
        return _files_cache["files"]
    import concurrent.futures
    def _fetch():
        return list(list_repo_files(REPO_ID, repo_type=REPO_TYPE, token=HF_TOKEN))
    with concurrent.futures.ThreadPoolExecutor(max_workers=1) as executor:
        future = executor.submit(_fetch)
        try:
            files = future.result(timeout=30)  # 最多等 30 秒
        except concurrent.futures.TimeoutError:
            if _files_cache["files"]:
                return _files_cache["files"]  # 超时时返回旧缓存
            raise TimeoutError("HF API 响应超时，请稍后重试")
    _files_cache = {"files": files, "ts": now}
    return files


def get_stats():
    """获取任务统计数据"""
    try:
        files = _get_repo_files()
        inbox_models = [f for f in files if f.startswith("inbox/") and not f.endswith(".json") and not f.endswith(".gitkeep")]
        outbox_models = [f for f in files if f.startswith("outbox/") and not f.endswith(".json") and not f.endswith(".gitkeep")]
        total = len(inbox_models) + len(outbox_models)
        done = len(outbox_models)
        pending = len(inbox_models)
        return f"📦 上传总数: **{total}** &nbsp;|&nbsp; ⏳ 待处理: **{pending}** &nbsp;|&nbsp; ✅ 已回传: **{done}**"
    except Exception as e:
        return f"统计加载失败: {e}"


def log(msg):
    timestamp = datetime.now().strftime("%Y-%m-%d %H:%M:%S")
    print(f"[{timestamp}] [SPACE] {msg}")


# === 场景描述选项定义 ===
SCENE_TYPES = [
    "游戏 - 实时渲染角色/道具",
    "电商 - 3D 商品展示",
    "建筑/室内 - BIM 可视化",
    "数字人/虚拟主播",
    "Web/小程序 - 轻量 3D",
    "影视/离线渲染",
    "3D 打印",
    "其他 / 仅测试",
]
TARGET_PLATFORMS = [
    "移动端(iOS/Android)",
    "PC 端",
    "Web 浏览器",
    "VR/AR 头显",
    "游戏主机",
    "不确定",
]
FACE_BUDGETS = [
    "不确定，由优化师决定",
    "极轻量 (< 5K faces)",
    "轻量 (5K - 30K)",
    "中等 (30K - 100K)",
    "高精度 (100K - 500K)",
    "不限 / 尽量保留细节",
]


def upload_model(file, scene_type, target_platform, face_budget, scene_note, progress=gr.Progress()):
    """处理用户上传的模型文件（含场景描述）"""
    if file is None:
        return "### ⚠️ 请先选择文件", ""

    # 校验必填项
    if not scene_type:
        return "### ⚠️ 请选择「使用场景」后再提交", ""
    if not target_platform or len(target_platform) == 0:
        return "### ⚠️ 请至少选择一个「目标平台」", ""

    filename = os.path.basename(file.name if hasattr(file, "name") else file)
    ext = os.path.splitext(filename)[1].lower()
    log(f"用户上传: {filename}")

    if ext not in SUPPORTED_FORMATS:
        log(f"格式不支持: {ext}")
        return f"### ❌ 不支持的格式: `{ext}`\n\n支持的格式: {', '.join(SUPPORTED_FORMATS)}", ""

    task_id = uuid.uuid4().hex
    target_name = f"{task_id}{ext}"

    try:
        progress(0.3, desc="正在上传模型文件...")
        file_path = file.name if hasattr(file, "name") else file
        api.upload_file(
            path_or_fileobj=file_path,
            path_in_repo=f"inbox/{target_name}",
            repo_id=REPO_ID,
            repo_type=REPO_TYPE,
        )

        progress(0.7, desc="正在创建任务...")
        name_no_ext = os.path.splitext(filename)[0]
        meta = json.dumps({
            "task_id": task_id,
            "filename": filename,
            "name_no_ext": name_no_ext,
            "scene_type": scene_type,
            "target_platform": target_platform if isinstance(target_platform, list) else [target_platform],
            "face_budget": face_budget or "不确定，由优化师决定",
            "scene_note": (scene_note or "").strip(),
            "status": "pending",
            "created": str(datetime.now()),
        }, ensure_ascii=False)
        api.upload_file(
            path_or_fileobj=meta.encode("utf-8"),
            path_in_repo=f"inbox/{task_id}.json",
            repo_id=REPO_ID,
            repo_type=REPO_TYPE,
        )

        progress(1.0, desc="上传完成!")
        log(f"上传成功: {target_name}, 任务ID: {task_id}")

        file_size = os.path.getsize(file_path)
        size_str = f"{file_size / 1024:.1f} KB" if file_size < 1024 * 1024 else f"{file_size / 1024 / 1024:.1f} MB"

        return (
            f"### ✅ **上传成功！**\n\n"
            f"| 项目 | 信息 |\n"
            f"|------|------|\n"
            f"| 📋 任务ID | `{task_id}` |\n"
            f"| 📁 文件名 | {filename} |\n"
            f"| 📦 文件大小 | {size_str} |\n"
            f"| 🎯 使用场景 | {scene_type} |\n"
            f"| 📱 目标平台 | {', '.join(target_platform) if isinstance(target_platform, list) else target_platform} |\n"
            f"| ⏱️ 状态 | 等待优化处理 |\n\n"
            f"> ⚠️ **务必保存好任务ID，这是您下载优化结果的唯一凭证！**"
        ), task_id

    except Exception as e:
        log(f"上传失败: {e}")
        return f"### ❌ 上传失败\n\n```\n{str(e)}\n```", ""


def _parse_glb_meshes(repo_path: str) -> list:
    """从 GLB 文件头解析每个网格的三角面数，返回 [(mesh_name, tris), ...]（只下载 JSON chunk）"""
    import struct
    import requests as _req
    try:
        url = f"https://huggingface.co/datasets/{REPO_ID}/resolve/main/{repo_path}"
        headers = {"Range": "bytes=0-2097151"}  # 前 2MB
        if HF_TOKEN:
            headers["Authorization"] = f"Bearer {HF_TOKEN}"
        resp = _req.get(url, headers=headers, timeout=15)
        data = resp.content
        if len(data) < 20:
            return []
        json_len = struct.unpack_from('<I', data, 12)[0]
        if json_len > len(data) - 20:
            del headers["Range"]
            resp = _req.get(url, headers=headers, timeout=60)
            data = resp.content
            json_len = struct.unpack_from('<I', data, 12)[0]
        json_bytes = data[20:20 + json_len]
        gltf = json.loads(json_bytes.decode('utf-8'))
        accessors = gltf.get('accessors', [])
        result = []
        for i, mesh in enumerate(gltf.get('meshes', [])):
            tris = 0
            for prim in mesh.get('primitives', []):
                if 'indices' in prim:
                    tris += accessors[prim['indices']].get('count', 0) // 3
                elif 'attributes' in prim and 'POSITION' in prim['attributes']:
                    tris += accessors[prim['attributes']['POSITION']].get('count', 0) // 3
            result.append((mesh.get('name') or f"mesh{i}", tris))
        return result
    except Exception as e:
        log(f"面数统计失败 {repo_path}: {e}")
        return []


def _count_glb_faces(repo_path: str) -> int:
    """GLB 总三角面数"""
    return sum(t for _, t in _parse_glb_meshes(repo_path))


def _build_viewer_html(inbox_path: str | None, outbox_path: str | None) -> str:
    """生成 <model-viewer> 双视口 HTML，含面数统计"""
    import random
    uid = random.randint(10000, 99999)

    def _viewer(label: str, repo_path: str | None, viewer_id: str, show_lod: bool = False) -> str:
        if not repo_path:
            return ""
        ext = os.path.splitext(repo_path)[1].lower()
        if ext not in PREVIEW_FORMATS:
            return (
                f'<div style="flex:1;min-width:280px;">'
                f'<div style="font-weight:600;margin-bottom:8px;">{label}</div>'
                f'<div style="height:400px;background:#2E3340;border-radius:12px;display:flex;align-items:center;justify-content:center;color:#aaa;font-size:14px;">'
                f'\u26a0\ufe0f \u683c\u5f0f {ext.upper()} \u4e0d\u652f\u6301\u5728\u7ebf\u9884\u89c8</div></div>'
            )
        url = f"{HF_RESOLVE_BASE}/{REPO_ID}/resolve/main/{repo_path}"
        # 服务端计算面数（解析一次网格）
        meshes = _parse_glb_meshes(repo_path)
        faces = sum(t for _, t in meshes)
        if faces > 0:
            face_label = f"{faces/1000000:.1f}M" if faces >= 1000000 else f"{faces/1000:.1f}K" if faces >= 1000 else str(faces)
            stats_html = f'\u25b3 <b>{faces:,}</b> faces ({face_label})'
            if show_lod:
                import re
                lods = []
                for name, tris in meshes:
                    m = re.search(r'LOD\s*(\d+)', name or '', re.I)
                    if m:
                        lods.append((int(m.group(1)), tris))
                if len(lods) >= 2:
                    lods.sort(key=lambda x: x[0])
                    parts = ' \u00b7 '.join(f'LOD{n}: {t:,}' for n, t in lods)
                    stats_html = f'{parts}<br>\u5408计 {faces:,}'
        else:
            stats_html = ''
        return (
            f'<div style="flex:1;min-width:280px;">'
            f'<div style="font-weight:600;margin-bottom:8px;">{label}</div>'
            f'<model-viewer id="{viewer_id}" src="{url}" '
            f'camera-controls auto-rotate '
            f'shadow-intensity="0.7" exposure="1.0" environment-image="neutral" '
            f'style="width:100%;height:400px;background:#2E3340;border-radius:12px;"'
            f'></model-viewer>'
            f'<div style="margin-top:6px;padding:6px 12px;'
            f'background:rgba(12,15,28,0.6);border:1px solid rgba(100,180,255,0.12);'
            f'border-radius:8px;color:#80d4ff;font-size:13px;font-family:monospace;'
            f'text-align:center;min-height:24px;">{stats_html}</div>'
            f'</div>'
        )

    vid_in = f"mv-in-{uid}"
    vid_out = f"mv-out-{uid}"
    left = _viewer("📤 原始模型", inbox_path, vid_in)
    right = _viewer("✨ 优化后模型", outbox_path, vid_out, show_lod=True)
    if not left and not right:
        return ""
    return f'<div style="display:flex;gap:16px;flex-wrap:wrap;">{left}{right}</div>'


def check_status(task_id):
    """查询任务状态，同时返回模型预览"""
    hide_btn = gr.update(visible=False)
    no_preview = ""

    if not task_id or len(task_id.strip()) == 0:
        return "### ⚠️ 请输入任务ID", hide_btn, no_preview

    task_id = task_id.strip()
    log(f"查询: {task_id}")

    try:
        files = _get_repo_files(force=True)

        inbox_model_files = [
            f for f in files
            if f.startswith(f"inbox/{task_id}") and not f.endswith(".json")
        ]
        outbox_matches = [
            f for f in files
            if f.startswith(f"outbox/{task_id}") and not f.endswith(".json")
        ]

        if outbox_matches:
            result_path = outbox_matches[0]
            ext = os.path.splitext(result_path)[1].upper().lstrip(".")
            log(f"任务 {task_id} 已完成")

            viewer_html = _build_viewer_html(
                inbox_model_files[0] if inbox_model_files else None,
                result_path,
            )
            status_md = (
                f"### ✅ 优化完成！\n\n"
                f"| 项目 | 信息 |\n"
                f"|------|------|\n"
                f"| 📋 任务ID | `{task_id}` |\n"
                f"| 📄 输出格式 | {ext} |\n\n"
                f"> 👇 点击下方「下载模型」按钮获取优化后的文件"
            )
            return status_md, gr.update(visible=True), viewer_html

        inbox_all = [f for f in files if f.startswith(f"inbox/{task_id}")]
        if inbox_all:
            log(f"任务 {task_id} 仍在队列中")
            viewer_html = _build_viewer_html(
                inbox_model_files[0] if inbox_model_files else None,
                None,
            )
            status_md = (
                f"### ⏳ 处理中\n\n"
                f"任务 `{task_id}` 正在优化队列中，请稍后再查询。\n\n"
                f"> Worker 每 **30秒** 检查一次新任务，优化完成后即可下载。"
            )
            return status_md, hide_btn, viewer_html

        log(f"任务 {task_id} 未找到")
        return f"### ❌ 未找到任务\n\n任务ID `{task_id}` 不存在，请检查是否输入正确。", hide_btn, no_preview

    except Exception as e:
        log(f"查询出错: {e}")
        return f"### ❌ 查询出错\n\n```\n{str(e)}\n```", hide_btn, no_preview


def download_model(task_id):
    """下载模型并记录取件事件"""
    if not task_id or len(task_id.strip()) == 0:
        return None, "### ⚠️ 请先查询任务ID"

    task_id = task_id.strip()
    log(f"用户下载: {task_id}")

    try:
        files = _get_repo_files()
        outbox_matches = [f for f in files if f.startswith(f"outbox/{task_id}") and not f.endswith(".json")]
        if not outbox_matches:
            return None, "### ❌ 未找到优化结果"

        result_path = outbox_matches[0]
        download_url = f"https://huggingface.co/datasets/{REPO_ID}/resolve/main/{result_path}"

        # 记录下载事件到 HF Dataset
        from datetime import datetime
        record = json.dumps({
            "task_id": task_id,
            "downloaded_at": datetime.now().isoformat(),
            "result_file": result_path,
        })
        try:
            api.upload_file(
                path_or_fileobj=record.encode(),
                path_in_repo=f"outbox/{task_id}.downloaded.json",
                repo_id=REPO_ID,
                repo_type=REPO_TYPE,
            )
            log(f"已记录下载: {task_id}")
        except Exception as e:
            log(f"记录下载失败(不影响下载): {e}")

        return (
            None,
            f"### ✅ 下载链接已生成\n\n"
            f"> 👇 [点击此处下载优化后的模型]({download_url})\n\n"
            f"*下载记录已通知管理端*"
        )

    except Exception as e:
        log(f"下载出错: {e}")
        return None, f"### ❌ 下载出错\n\n```\n{str(e)}\n```"


def delete_task(task_id):
    """删除任务（清理 inbox + outbox 文件）"""
    if not task_id or len(task_id.strip()) == 0:
        return "### ⚠️ 请输入任务ID"

    task_id = task_id.strip()
    log(f"删除任务: {task_id}")

    try:
        files = _get_repo_files(force=True)
        to_delete = [f for f in files if task_id in f and f != ".gitattributes"]

        if not to_delete:
            return f"### ❌ 未找到任务\n\n任务ID `{task_id}` 不存在。"

        deleted = []
        for filepath in to_delete:
            try:
                api.delete_file(filepath, REPO_ID, repo_type=REPO_TYPE)
                deleted.append(filepath)
                log(f"已删除: {filepath}")
            except Exception as e:
                log(f"删除失败 {filepath}: {e}")

        file_list = "\n".join([f"- `{f}`" for f in deleted])
        return f"### 🗑️ 删除成功\n\n已删除 **{len(deleted)}** 个文件：\n\n{file_list}"

    except Exception as e:
        log(f"删除出错: {e}")
        return f"### ❌ 删除出错\n\n```\n{str(e)}\n```"


def render_public_feedback():
    items = fetch_public_feedback()
    if not items:
        return "<p style='color:#888;'>暂无公开反馈</p>"

    blocks = []
    for item in items:
        created = (item.get("created") or "")[:19]
        username = item.get("username") or "匿名"
        text = (item.get("text") or "").replace("\n", "<br>")
        img_note = ""
        if item.get("images"):
            img_note = f"<div style='color:#666;font-size:13px;margin-top:6px;'>附带 {len(item['images'])} 张图片</div>"
        blocks.append(
            f"<div style='border:1px solid #eee;border-radius:8px;padding:14px;margin-bottom:12px;background:#fafafa;'>"
            f"<div style='font-weight:600;'>{username} "
            f"<span style='color:#999;font-size:12px;'>{created}</span></div>"
            f"<div style='margin-top:8px;line-height:1.6;'>{text}</div>{img_note}</div>"
        )
    return "".join(blocks)


def handle_feedback_submit(username, text, images, is_public):
    try:
        image_paths = []
        if images:
            if isinstance(images, list):
                image_paths = [item.name if hasattr(item, "name") else item for item in images]
            else:
                image_paths = [images.name if hasattr(images, "name") else images]
        meta = submit_feedback(username, text, image_paths, is_public)
        visibility = "已公开" if meta.get("is_public") else "仅管理员可见"
        return f"### ✅ 反馈提交成功\n\n| 项目 | 信息 |\n|------|------|\n| 反馈ID | `{meta['feedback_id']}` |\n| 展示范围 | {visibility} |"
    except Exception as e:
        log(f"反馈提交失败: {e}")
        return f"### ❌ 提交失败\n\n```\n{str(e)}\n```"


# ---------- 读取流体背景脚本 ----------
_fluid_js_path = os.path.join(os.path.dirname(os.path.abspath(__file__)), "fluid_bg.js")
_fluid_js = ""
if os.path.exists(_fluid_js_path):
    with open(_fluid_js_path, encoding="utf-8") as _f:
        _fluid_js = _f.read()

_head_html = (
    '<script type="module" src="https://unpkg.com/@google/model-viewer/dist/model-viewer.min.js"></script>'
    + f'<script>{_fluid_js}</script>' if _fluid_js else
    '<script type="module" src="https://unpkg.com/@google/model-viewer/dist/model-viewer.min.js"></script>'
)

custom_css = """
/* ===== dark glass-morphism theme ===== */
body { background: #05060a !important; }
body.fluid-off { background: #000 !important; }
footer { display: none !important; }

/* --- Gradio wrapper chain: ALL transparent so fluid canvas shows through --- */
body > div,
body > div > div,
#root,
.gradio-container > .main,
.gradio-container > .wrap,
.gradio-container > .contain,
.app {
  background: transparent !important;
  background-color: transparent !important;
}

.gradio-container {
  position: relative; z-index: 5;
  max-width: 1200px !important;
  width: 88% !important;
  margin: 0 auto !important;
  padding: 28px 40px !important;
  background: transparent !important;
  border-radius: 18px !important;
  border: 1px solid transparent !important;
  margin-top: 20px !important;
  margin-bottom: 20px !important;
  transition: background 0.4s ease, border-color 0.4s ease, backdrop-filter 0.4s ease !important;
}
.gradio-container:focus-within {
  background: rgba(8, 10, 20, 0.75) !important;
  backdrop-filter: blur(20px) saturate(1.2) !important;
  -webkit-backdrop-filter: blur(20px) saturate(1.2) !important;
  border-color: rgba(100, 180, 255, 0.08) !important;
}

/* panels — glass morphism only on interaction blocks */
.gr-panel, .gr-box, .gr-form, .gr-input-label,
.gr-padded {
  background: rgba(12, 15, 28, 0.65) !important;
  border: 1px solid rgba(100, 180, 255, 0.10) !important;
  border-radius: 14px !important;
  backdrop-filter: blur(18px) saturate(1.3) !important;
  -webkit-backdrop-filter: blur(18px) saturate(1.3) !important;
}
/* Gradio 4.x structural wrappers — keep transparent */
.gr-block, .gr-group, .gr-row, .block {
  background: transparent !important;
  background-color: transparent !important;
}
/* Svelte 内部包装器透明（排除 checkbox/radio 容器） */
.gradio-container [class*="svelte"]:not([role="group"]):not(.wrap) {
  background: transparent !important;
  background-color: transparent !important;
}
.tabitem > div, .tab-content, .form, .block.padded {
  background: transparent !important;
}
/* checkbox / radio 组件保证可点击 */
.gr-check-radio, .gr-checkbox-group,
label:has(input[type="checkbox"]), label:has(input[type="radio"]) {
  pointer-events: auto !important;
  position: relative !important;
  z-index: 10 !important;
}
input[type="checkbox"], input[type="radio"] {
  pointer-events: auto !important;
  cursor: pointer !important;
  position: relative !important;
  z-index: 10 !important;
}
/* re-apply glass on input blocks */
.gr-block.gr-box {
  background: rgba(12, 15, 28, 0.65) !important;
}

/* tabs */
.tabs { background: transparent !important; }
.tabitem { background: transparent !important; }
.tab-nav { background: transparent !important; border-bottom: 1px solid rgba(100,180,255,0.12) !important; }
.tab-nav button {
  color: rgba(180, 210, 255, 0.6) !important;
  background: transparent !important;
  border: none !important;
  font-weight: 500;
}
.tab-nav button.selected {
  color: #60c8ff !important;
  border-bottom: 2px solid #60c8ff !important;
  background: rgba(96, 200, 255, 0.06) !important;
}

/* inputs */
input, textarea, .gr-input {
  background: rgba(15, 20, 40, 0.7) !important;
  border: 1px solid rgba(100, 180, 255, 0.15) !important;
  color: #d0e0ff !important;
  border-radius: 10px !important;
}
input:focus, textarea:focus {
  border-color: rgba(96, 200, 255, 0.5) !important;
  box-shadow: 0 0 12px rgba(96, 200, 255, 0.15) !important;
}

/* dropdown 下拉框组件 — 全部透明/暗色 */
[data-testid="dropdown"], .gr-dropdown,
[role="listbox"], ul[role="listbox"] {
  background: rgba(15, 20, 40, 0.95) !important;
  border: 1px solid rgba(100, 180, 255, 0.15) !important;
  border-radius: 10px !important;
}
[data-testid="dropdown"] > *, .gr-dropdown > *,
[data-testid="dropdown"] button,
.gr-dropdown button,
.wrap-inner, .secondary-wrap, .icon-wrap {
  background: transparent !important;
  background-color: transparent !important;
}
/* 下拉框输入区域透明 */
[data-testid="dropdown"] input,
.gr-dropdown input {
  background: transparent !important;
  background-color: transparent !important;
}
/* 下拉框外层包装器透明 */
.gradio-container .wrap,
.gradio-container div[data-testid] > div {
  background: transparent !important;
  background-color: transparent !important;
}
[role="option"], [role="listbox"] li {
  background: rgba(15, 20, 40, 0.95) !important;
  color: #d0e0ff !important;
}
[role="option"]:hover, [role="listbox"] li:hover {
  background: rgba(96, 200, 255, 0.15) !important;
}
[role="option"][aria-selected="true"] {
  background: rgba(96, 200, 255, 0.2) !important;
  color: #80d4ff !important;
}

/* buttons — 只针对 Gradio 功能按钮，排除内部组件小按钮 */
.gr-button, button.primary, button.secondary, button.lg, button.sm, button.stop {
  min-height: 46px !important;
  padding: 10px 24px !important;
  font-size: 16px !important;
  font-weight: 500 !important;
  border-radius: 12px !important;
  transition: all 0.3s ease !important;
}
button.primary, button.lg.primary {
  background: linear-gradient(135deg, rgba(60,140,255,0.75), rgba(100,80,220,0.75)) !important;
  border: 1px solid rgba(100, 180, 255, 0.3) !important;
  color: #fff !important;
  backdrop-filter: blur(8px) !important;
  font-size: 17px !important;
  min-height: 52px !important;
  padding: 12px 28px !important;
}
button.primary:hover {
  background: linear-gradient(135deg, rgba(80,160,255,0.9), rgba(120,100,240,0.9)) !important;
  box-shadow: 0 0 24px rgba(96, 200, 255, 0.3) !important;
  transform: translateY(-1px);
}
button.secondary, button.stop {
  background: rgba(20, 25, 50, 0.6) !important;
  border: 1px solid rgba(100, 180, 255, 0.18) !important;
  color: #a0c0e8 !important;
  backdrop-filter: blur(8px) !important;
  font-size: 16px !important;
  min-height: 48px !important;
}
button.sm {
  background: rgba(20, 25, 50, 0.5) !important;
  border: 1px solid rgba(100, 180, 255, 0.12) !important;
  color: #80b0e0 !important;
  font-size: 14px !important;
  min-height: 38px !important;
  padding: 6px 16px !important;
}
/* 文件组件内部的 X 删除按钮 — 保持小尺寸 */
.file-preview button, .upload-container button, button.remove-file {
  min-height: unset !important;
  padding: 2px 6px !important;
  font-size: 12px !important;
  border-radius: 50% !important;
  min-width: unset !important;
  width: 24px !important;
  height: 24px !important;
  backdrop-filter: none !important;
}

/* text colors & sizing */
.gr-markdown, .gr-markdown *, .prose, .prose * {
  color: #c8daf0 !important;
  font-size: 15px !important;
  line-height: 1.6 !important;
}
.gr-markdown h1, .gr-markdown h2, .gr-markdown h3 {
  color: #e0f0ff !important;
}
.gr-markdown h1 { font-size: 22px !important; }
.gr-markdown h2 { font-size: 19px !important; }
.gr-markdown h3 { font-size: 17px !important; }
.gr-markdown strong { color: #80d4ff !important; }
.gr-markdown a { color: #60c8ff !important; }
label, .gr-input-label span {
  color: #90b8dc !important;
  font-size: 14px !important;
}
input, textarea {
  font-size: 14px !important;
}


/* title section */
.main-title { text-align: center; margin-bottom: 0.5em; }
.main-title h1 {
  color: #e8f4ff !important;
  text-shadow: 0 0 30px rgba(96,200,255,0.2);
  font-size: 28px !important;
}
.sub-title {
  color: rgba(180, 210, 255, 0.6) !important;
  font-size: 15px !important;
  margin-bottom: 1.5em;
  text-align: center;
}
.format-badge {
    display: inline-block;
    background: rgba(96, 200, 255, 0.12);
    color: #60c8ff;
    padding: 5px 16px; border-radius: 16px; margin: 3px;
    font-size: 13px; font-weight: 500;
    border: 1px solid rgba(96, 200, 255, 0.18);
    backdrop-filter: blur(6px);
}

/* tab nav text */
.tab-nav button {
  font-size: 14px !important;
}

/* file upload */
.file-preview, .upload-area, [data-testid="file"] {
  background: rgba(12, 15, 28, 0.5) !important;
  border: 1px dashed rgba(100, 180, 255, 0.2) !important;
  border-radius: 12px !important;
}

/* checkbox — 增大并显示明确勾选 */
.gr-check-radio input[type=checkbox],
input[type=checkbox] {
  accent-color: #60c8ff !important;
  width: 18px !important;
  height: 18px !important;
  cursor: pointer !important;
  border: 2px solid rgba(100, 180, 255, 0.4) !important;
  border-radius: 4px !important;
  appearance: auto !important;
  -webkit-appearance: checkbox !important;
}
input[type=checkbox]:checked {
  background: #60c8ff !important;
  border-color: #60c8ff !important;
}
/* 选中项 label 高亮 */
label:has(input[type=checkbox]:checked) {
  color: #80d4ff !important;
  font-weight: 600 !important;
}

/* scrollbar */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: rgba(5,6,10,0.4); }
::-webkit-scrollbar-thumb { background: rgba(96,200,255,0.2); border-radius: 3px; }

/* stats row */
.stats-row {
  background: rgba(12, 15, 28, 0.55) !important;
  border: 1px solid rgba(100, 180, 255, 0.10) !important;
  border-radius: 12px !important;
  backdrop-filter: blur(14px) !important;
  padding: 8px 16px;
}

/* model preview containers */
model-viewer {
  border: 1px solid rgba(100, 180, 255, 0.12) !important;
}
"""

with gr.Blocks(
    title="3D 模型优化服务",
    theme=gr.themes.Soft(primary_hue="blue", secondary_hue="slate"),
    css=custom_css,
    head=_head_html,
) as demo:
    gr.HTML("""
    <div class="main-title"><h1>🛠️ 3D 模型优化服务</h1></div>
    <div class="sub-title">上传 3D 模型 · 自动优化处理 · 完成后下载</div>
    <div style="text-align:center;margin-bottom:1.5em;">
        <span class="format-badge">GLB</span><span class="format-badge">GLTF</span>
        <span class="format-badge">FBX</span><span class="format-badge">OBJ</span>
        <span style="margin:0 8px;color:rgba(150,200,255,0.4);">→</span>
        <span class="format-badge">GLB 输出</span>
    </div>
    <p style="text-align:center;color:rgba(255,180,100,0.85);">⚠️ 测试阶段，请优先上传 GLB 格式文件</p>
    """)

    with gr.Row():
        stats_display = gr.Markdown(value=get_stats())
        refresh_stats_btn = gr.Button("🔄 刷新统计", size="sm", scale=0)
    refresh_stats_btn.click(get_stats, outputs=[stats_display])

    with gr.Tabs():
        with gr.Tab("📤 上传模型", id="upload"):
            with gr.Row(equal_height=True):
                with gr.Column(scale=1):
                    file_input = gr.File(
                        label="选择 3D 模型文件",
                        file_types=[".glb", ".gltf", ".fbx", ".obj"],
                        type="filepath",
                        height=150,
                    )
                    gr.Markdown("#### 📝 场景描述（必填）", elem_classes=["scene-title"])
                    scene_type_input = gr.Dropdown(
                        label="使用场景",
                        choices=SCENE_TYPES,
                        value=None,
                        info="选择模型的使用场景，便于针对性优化",
                    )
                    target_platform_input = gr.CheckboxGroup(
                        label="目标平台（可多选）",
                        choices=TARGET_PLATFORMS,
                        value=[],
                        info="模型最终运行的平台",
                    )
                    face_budget_input = gr.Dropdown(
                        label="期望面数范围（可选）",
                        choices=FACE_BUDGETS,
                        value="不确定，由优化师决定",
                    )
                    scene_note_input = gr.Textbox(
                        label="补充说明（可选）",
                        placeholder="如：需要保留骨骼动画、关注面部精度、单场景有多个同类模型...",
                        lines=2,
                        max_lines=4,
                    )
                    upload_btn = gr.Button("🚀 提交优化", variant="primary", size="lg")
                with gr.Column(scale=1):
                    upload_result = gr.Markdown(
                        value="### 📋 等待上传\n\n选择文件并填写场景描述后点击「提交优化」按钮。",
                        label="处理结果",
                    )
                    task_id_output = gr.Textbox(label="📋 任务ID（复制保存）", interactive=False)

            upload_btn.click(
                upload_model,
                inputs=[file_input, scene_type_input, target_platform_input, face_budget_input, scene_note_input],
                outputs=[upload_result, task_id_output],
            )

        with gr.Tab("🔍 查询结果", id="query"):
            with gr.Row(equal_height=True):
                with gr.Column(scale=1):
                    task_id_input = gr.Textbox(label="输入任务ID", placeholder="粘贴完整任务ID", max_lines=1)
                    with gr.Row():
                        check_btn = gr.Button("🔍 查询状态", variant="primary", size="lg")
                        delete_btn = gr.Button("🗑️ 删除任务", variant="stop", size="lg")
                    download_btn = gr.Button("📥 下载模型", variant="secondary", size="lg", visible=False)
                with gr.Column(scale=1):
                    status_result = gr.Markdown(
                        value="### 📋 等待查询\n\n输入任务ID后点击「查询状态」按钮。",
                        label="任务状态",
                    )

            gr.Markdown("### 👁️ 模型预览")
            model_preview_html = gr.HTML(value="")

            check_btn.click(
                check_status,
                inputs=[task_id_input],
                outputs=[status_result, download_btn, model_preview_html],
            )
            delete_btn.click(delete_task, inputs=[task_id_input], outputs=[status_result])
            download_btn.click(download_model, inputs=[task_id_input], outputs=[download_btn, status_result])

        with gr.Tab("💬 提交反馈", id="feedback"):
            gr.Markdown("欢迎提交使用建议或问题反馈，可附带截图。管理员会在本地管理面板查看全部反馈。")
            feedback_username = gr.Textbox(label="用户名 / 昵称", placeholder="可选，默认匿名")
            feedback_text = gr.Textbox(label="反馈内容", lines=6, placeholder="请描述您的建议或遇到的问题...")
            feedback_images = gr.File(
                label="截图 / 图片（可选，可多选）",
                file_count="multiple",
                file_types=["image"],
                type="filepath",
            )
            feedback_public = gr.Checkbox(
                label="允许对外公开展示（勾选后其他用户可在「公开反馈」页看到文字内容）",
                value=False,
            )
            feedback_submit_btn = gr.Button("提交反馈", variant="primary")
            feedback_result = gr.Markdown()
            feedback_submit_btn.click(
                handle_feedback_submit,
                inputs=[feedback_username, feedback_text, feedback_images, feedback_public],
                outputs=[feedback_result],
            )

        with gr.Tab("📣 公开反馈", id="public_feedback"):
            refresh_public_btn = gr.Button("🔄 刷新公开反馈")
            public_feedback_html = gr.HTML(value=render_public_feedback())
            refresh_public_btn.click(lambda: render_public_feedback(), outputs=[public_feedback_html])

    gr.HTML("<p style='text-align:center;color:rgba(150,180,220,0.35);margin-top:1em;font-size:0.8em;'>Fluid effect inspired by <a href=\"https://github.com/PavelDoGreat/WebGL-Fluid-Simulation\" target=\"_blank\" style=\"color:rgba(96,200,255,0.4);text-decoration:none;\">WebGL-Fluid-Simulation</a></p>")


if __name__ == "__main__":
    log("Gradio 前端启动")
    demo.launch()