'''
Author: ai-business-hql ai.bussiness.hql@gmail.com
Date: 2025-08-26 15:06:47
LastEditors: ai-business-hql ai.bussiness.hql@gmail.com
LastEditTime: 2025-09-01 19:31:03
FilePath: /ComfyUI-Copilot/backend/utils/modelscope_gateway.py
Description: 这是默认设置,请设置`customMade`, 打开koroFileHeader查看配置 进行设置: https://github.com/OBKoro1/koro1FileHeader/wiki/%E9%85%8D%E7%BD%AE
'''
import os
from typing import Any, Dict, List, Optional

import requests
from requests.adapters import HTTPAdapter
from urllib3.util.retry import Retry
from .logger import log
import folder_paths


class ModelScopeGateway:
    BASE_URL = "https://www.modelscope.cn"
    SUGGEST_ENDPOINT = f"{BASE_URL}/api/v1/dolphin/model/suggestv2"

    def __init__(self, timeout: float = 10.0, retries: int = 3, backoff: float = 0.5):
        self.timeout = timeout

        # 单实例 Session，会自动保存 Cookie；如需按用户隔离可按 session_key 做多 Session 管理
        self.session = requests.Session()
        self.session.headers.update({
            "Accept": "application/json, text/plain, */*",
            "Content-Type": "application/json",
            "User-Agent": "ComfyUI-Copilot/1.0 (requests)",
            "x-modelscope-accept-language": "zh_CN",
        })

        retry_cfg = Retry(
            total=retries,
            backoff_factor=backoff,
            status_forcelist=[429, 500, 502, 503, 504],
            allowed_methods=["GET", "POST"],
            raise_on_status=False,
        )
        adapter = HTTPAdapter(max_retries=retry_cfg)
        self.session.mount("https://", adapter)
        self.session.mount("http://", adapter)

    def suggest(
        self,
        name: str,
        page: int = 1,
        page_size: int = 30,
        sort_by: str = "Default",
        target: str = "",
        single_criterion: Optional[List[Dict[str, Any]]] = None,
    ) -> Dict[str, Any]:
        """
        调用 suggestv2 模糊搜索接口；返回 body 与当前 Cookie。
        
        Returns:
            Dict[str, Any]: 返回的模型列表，格式为：
            {
                "data": [
                    {
                        "ChineseName": "中文名称",
                        "Id": 294066,
                        "Name": "SD3-Controlnet-Pose",
                        "Path": "InstantX"
                    }
                ]
            }
        """
        payload = {
            "PageSize": page_size,
            "PageNumber": page,
            "SortBy": sort_by,
            "Target": target,
            "SingleCriterion": single_criterion or [],
            "Name": name,
        }

        resp = self.session.post(
            self.SUGGEST_ENDPOINT,
            json=payload,
            timeout=self.timeout,
        )
        resp.raise_for_status()
        body = resp.json()
        if body['Data'] is None or body['Data']['Model'] is None \
        or body['Data']['Model']['Suggests'] is None or (len(body['Data']['Model']['Suggests']) == 0):
            log.error(f"ModelScope suggest failed: {body}, request: {payload}")
            return {"data": None}
        return {"data": body['Data']['Model']['Suggests']}

    def download_with_sdk(
        self,
        model_id: str,
        model_type: str,
        dest_dir: Optional[str] = None,
    ) -> str:
        """
        推荐通过 ModelScope 官方 SDK 下载（更稳妥，支持断点与多文件）。
        pip install modelscope
        """
        try:
            from modelscope.hub.snapshot_download import snapshot_download
        except ImportError as e:
            raise RuntimeError("缺少依赖 modelscope，请先安装：pip install modelscope") from e

        # Determine destination directory in ComfyUI models folder hierarchy
        try:
            if dest_dir:
                cache_dir = os.path.abspath(os.path.expanduser(dest_dir))
            else:
                # Prefer ComfyUI's configured folder for this model_type
                try:
                    model_type_paths = folder_paths.get_folder_paths(model_type)
                    cache_dir = model_type_paths[0] if model_type_paths else os.path.join(folder_paths.models_dir, model_type)
                except Exception:
                    # Fallback to models_dir/model_type if the key is unknown
                    cache_dir = os.path.join(folder_paths.models_dir, model_type)

            os.makedirs(cache_dir, exist_ok=True)
        except Exception as e:
            raise RuntimeError(f"Failed to prepare destination directory for download: {e}") from e

        local_dir = snapshot_download(model_id, cache_dir=cache_dir)
        return local_dir
    
    def test_modelscope_gateway(self):
        """
        测试 ModelScope Gateway 的基本功能
        """
        try:
            # 测试初始化
            print("Testing ModelScope Gateway initialization...")
            gateway = ModelScopeGateway()
            
            # 测试模糊搜索
            print("Testing suggest method...")
            result = gateway.suggest(
                name="stable-diffusion",
                page_size=5,
                page=1
            )
            if result.get("data"):
                print(f"Suggest test passed: found {len(result['data'])} models")
                for model in result["data"][:2]:  # 显示前2个结果
                    print(f"  - {model.get('Model', {}).get('ModelId', 'Unknown')}")
            else:
                print("Suggest test failed: no data returned")
            
            # 测试特定模型搜索
            print("Testing specific model search...")
            specific_result = gateway.suggest(
                name="qwen",
                page_size=3,
                page=1,
                sort_by="DownloadCount",
                target="model"
            )
            if specific_result.get("data"):
                print(f"Specific search test passed: found {len(specific_result['data'])} models")
            else:
                print("Specific search test failed")
                
            print("All tests completed successfully!")
            return True
            
        except Exception as e:
            print(f"Test failed with error: {e}")
            import traceback
            traceback.print_exc()
            return False


# 测试脚本入口
if __name__ == "__main__":
    # 创建测试实例
    gateway = ModelScopeGateway()
    
    # 运行测试
    print("=" * 50)
    print("ModelScope Gateway Test Script")
    print("=" * 50)
    
    success = gateway.test_modelscope_gateway()
    
    print("=" * 50)
    if success:
        print("✅ All tests passed!")
    else:
        print("❌ Some tests failed!")
    print("=" * 50)