# -*- coding: utf-8 -*-
"""
图绘平台上传服务
将处理好的图片上传到图绘平台，返回图片 URL
"""
import os
import httpx
import logging
from pathlib import Path
from typing import Optional, Tuple
from dotenv import load_dotenv

logger = logging.getLogger(__name__)

# 图绘平台配置
TUHUI_BASE_URL = os.getenv("TUHUI_BASE_URL", "http://127.0.0.1:8002")
TUHUI_PHONE = os.getenv("TUHUI_PHONE", "17520145271")  # 图绘账号手机号
TUHUI_PASSWORD = os.getenv("TUHUI_PASSWORD", "zuowei1216")  # 图绘账号密码
TUHUI_DEFAULT_PRICE = int(os.getenv("TUHUI_DEFAULT_PRICE", "20"))  # 默认定价（元）

class TuhuiUploadService:
    """图绘平台上传服务"""
    
    def __init__(self):
        self.base_url = TUHUI_BASE_URL
        self.phone = TUHUI_PHONE
        self.password = TUHUI_PASSWORD
        self.default_price = TUHUI_DEFAULT_PRICE
        self.access_token = None
        self.user_id = None
    
    async def login(self) -> bool:
        """登录图绘平台获取 token"""
        try:
            async with httpx.AsyncClient() as client:
                response = await client.post(
                    f"{self.base_url}/api/auth/login",
                    json={
                        "phone": self.phone,
                        "password": self.password
                    },
                    timeout=10.0
                )
                
                if response.status_code == 200:
                    data = response.json()
                    self.access_token = data.get("access_token")
                    user = data.get("user", {})
                    self.user_id = user.get("id")
                    logger.info(f"图绘平台登录成功，用户 ID: {self.user_id}")
                    return True
                else:
                    logger.error(f"图绘平台登录失败：{response.status_code} {response.text}")
                    return False
        except Exception as e:
            logger.error(f"图绘平台登录异常：{e}")
            return False
    
    async def upload_image(
        self,
        image_path: str,
        title: str,
        description: str = "",
        price: Optional[int] = None,
        category: str = "高清修复"
    ) -> Tuple[bool, str, int]:
        """
        上传图片到图绘平台
        
        Args:
            image_path: 图片文件路径
            title: 作品标题
            description: 作品描述
            price: 定价（元），默认使用 TUHUI_DEFAULT_PRICE
            category: 分类
            
        Returns:
            (success, image_url, work_id)
            - success: 是否上传成功
            - image_url: 图片 URL
            - work_id: 作品 ID
        """
        try:
            # 如果 token 过期，重新登录
            if not self.access_token:
                if not await self.login():
                    return False, "登录失败", 0
            
            # 准备上传数据
            price = price or self.default_price
            
            # 读取图片文件
            if not os.path.exists(image_path):
                logger.error(f"图片文件不存在：{image_path}")
                return False, "文件不存在", 0
            
            with open(image_path, "rb") as f:
                files = {
                    "original_image": ("image.jpg", f, "image/jpeg")
                }
                
                data = {
                    "title": title,
                    "description": description,
                    "price": str(price),
                    "category": category
                }
                
                headers = {
                    "Authorization": f"Bearer {self.access_token}"
                }
                
                async with httpx.AsyncClient() as client:
                    response = await client.post(
                        f"{self.base_url}/api/works",
                        files=files,
                        data=data,
                        headers=headers,
                        timeout=30.0
                    )
                    
                    if response.status_code in [200, 201]:
                        work_data = response.json()
                        work_id = work_data.get("id")
                        image_url = work_data.get("original_image", "")
                        logger.info(f"图绘平台上传成功，作品 ID: {work_id}, URL: {image_url}")
                        return True, image_url, work_id
                    else:
                        logger.error(f"图绘平台上传失败：{response.status_code} {response.text}")
                        
                        # 如果 token 过期，尝试重新登录后再上传
                        if response.status_code == 401:
                            logger.info("Token 可能过期，尝试重新登录...")
                            self.access_token = None
                            if await self.login():
                                # 重新上传
                                return await self.upload_image(
                                    image_path, title, description, price, category
                                )
                        
                        return False, f"上传失败：{response.text}", 0
        except Exception as e:
            logger.error(f"图绘平台上传异常：{e}")
            return False, f"上传异常：{e}", 0


# 单例
_tuhui_service: Optional[TuhuiUploadService] = None

def get_tuhui_service() -> TuhuiUploadService:
    """获取图绘上传服务单例"""
    global _tuhui_service
    if _tuhui_service is None:
        _tuhui_service = TuhuiUploadService()
    return _tuhui_service


# 便捷函数
async def upload_to_tuhui(
    image_path: str,
    title: str,
    description: str = "",
    price: int = 20
) -> Tuple[bool, str, int]:
    """
    便捷函数：上传图片到图绘平台
    
    Returns:
        (success, image_url, work_id)
    """
    service = get_tuhui_service()
    return await service.upload_image(image_path, title, description, price)