import os
import json
import base64
import requests

OPENROUTER_API_KEY = "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"

MODEL = "google/gemini-2.5-flash"

API_URL = "https://openrouter.ai/api/v1/chat/completions"


def analyze_image(image_path: str):

    if not image_path:
        return {
            "success": False,
            "description": "No image provided."
        }

    if not os.path.exists(image_path):
        return {
            "success": False,
            "description": f"Image not found: {image_path}"
        }

    with open(image_path, "rb") as f:
        image = base64.b64encode(f.read()).decode("utf-8")

    headers = {
        "Authorization": f"Bearer {OPENROUTER_API_KEY}",
        "Content-Type": "application/json",
        "HTTP-Referer": "http://localhost",
        "X-Title": "AI Image Studio"
    }

    prompt = """
You are an expert computer vision assistant.

Analyze this image.

Return ONLY valid JSON.

{
    "description":"",
    "objects":[],
    "people":"",
    "style":"",
    "lighting":"",
    "colors":[],
    "background":"",
    "camera_angle":"",
    "quality":"",
    "editing_prompt":"",
    "suggestions":[]
}

Rules:

Return JSON only.

Do not write markdown.

Do not use ```.

editing_prompt should preserve every important detail so future editing keeps the same image.

suggestions should contain 6 editing ideas.
"""

    payload = {
        "model": MODEL,
        "messages": [
            {
                "role": "user",
                "content": [
                    {
                        "type": "text",
                        "text": prompt
                    },
                    {
                        "type": "image_url",
                        "image_url": {
                            "url": f"data:image/jpeg;base64,{image}"
                        }
                    }
                ]
            }
        ],
        "temperature": 0.2,
        "max_tokens": 1500
    }

    try:

        response = requests.post(
            API_URL,
            headers=headers,
            json=payload,
            timeout=180
        )

        print("Status:", response.status_code)

        result = response.json()

        print(result)

        if response.status_code != 200:

            return {
                "success": False,
                "description": result.get(
                    "error",
                    {}
                ).get(
                    "message",
                    "Unknown OpenRouter error."
                )
            }

        if "choices" not in result:

            return {
                "success": False,
                "description": "No choices returned.",
                "raw": result
            }

        content = result["choices"][0]["message"]["content"]

        content = content.replace("```json", "")
        content = content.replace("```", "")
        content = content.strip()

        try:

            analysis = json.loads(content)

            analysis["success"] = True

            return analysis

        except Exception:

            return {
                "success": True,
                "description": content,
                "objects": [],
                "people": "",
                "style": "",
                "lighting": "",
                "colors": [],
                "background": "",
                "camera_angle": "",
                "quality": "",
                "editing_prompt": content,
                "suggestions": [
                    "Make it Anime",
                    "Pixar Style",
                    "Remove Background",
                    "Replace Background",
                    "Enhance Quality",
                    "Change Colors"
                ]
            }

    except Exception as e:

        return {
            "success": False,
            "description": str(e)
        }