import os
from fastapi import FastAPI, Query, HTTPException
from fastapi.staticfiles import StaticFiles
from fastapi.responses import RedirectResponse
from typing import List, Optional
from pydantic import BaseModel
from goofish_api import GoofishAPI
from data_parser import ItemDetail, parse_search_result

# 定义搜索响应模型
class SearchResponse(BaseModel):
    code: int = 0
    message: str = "success"
    data: List[ItemDetail]
    total: int = 0

app = FastAPI(
    title="闲鱼搜索API", 
    description="搜索闲鱼商品的API服务",
    version="1.0.0"
)

# 挂载静态文件
app.mount("/static", StaticFiles(directory="static"), name="static")

# 初始化API客户端
goofish_client = GoofishAPI()

@app.get("/", include_in_schema=False)
async def root():
    return RedirectResponse(url="/static/index.html")

@app.get("/api/search", response_model=SearchResponse, tags=["搜索"])
async def search(
    keyword: str = Query(..., description="搜索关键词"),
    page: int = Query(1, description="页码，从1开始"),
    page_size: int = Query(10, description="每页结果数量，最大40"),
    min_price: Optional[float] = Query(None, description="最低价格"),
    max_price: Optional[float] = Query(None, description="最高价格"),
    publish_days: Optional[int] = Query(None, description="最近发布天数，例如3表示最近3天发布的商品")
):
    """
    搜索闲鱼商品
    """
    try:
        # 调用GoofishAPI的search_with_retry方法以支持自动刷新token
        raw_result = goofish_client.search_with_retry(
            keyword=keyword,
            page_number=page,
            rows_per_page=page_size,
            min_price=min_price,
            max_price=max_price,
            publish_days=publish_days
        )
        
        # 如果搜索失败（所有重试都失败）
        if raw_result is None:
            raise HTTPException(status_code=502, detail="搜索服务暂时不可用，可能是令牌已过期")
        
        # 解析结果
        items = parse_search_result(raw_result)
        total = len(items)
        
        # 构建响应
        return SearchResponse(
            code=0,
            message="success",
            data=items,
            total=total
        )
    except Exception as e:
        print(f"搜索出错: {str(e)}")
        raise HTTPException(status_code=500, detail=f"搜索出错：{str(e)}")

# 添加刷新token的API端点
@app.post("/api/refresh_token", tags=["系统"])
async def refresh_token():
    """
    手动刷新API令牌
    """
    try:
        success = goofish_client.refresh_token_via_api_call()
        if success:
            return {"code": 0, "message": "令牌刷新成功"}
        else:
            return {"code": 1, "message": "令牌刷新失败，请查看日志"}
    except Exception as e:
        print(f"刷新令牌出错: {str(e)}")
        raise HTTPException(status_code=500, detail=f"刷新令牌出错：{str(e)}")

if __name__ == "__main__":
    port = int(os.environ.get("PORT", 8000))
    import uvicorn
    uvicorn.run(app, host="0.0.0.0", port=port)