# -*- coding: utf-8 -*-
"""
平台发布基类
提供通用的发布接口和工具方法
"""

import asyncio
import json
import os
from abc import ABC, abstractmethod
from dataclasses import dataclass, field
from datetime import datetime
from typing import List, Optional, Callable, Dict, Any
from playwright.async_api import async_playwright, Browser, BrowserContext, Page


@dataclass
class PublishParams:
    """发布参数"""
    title: str
    video_path: str
    description: str = ""
    cover_path: Optional[str] = None
    tags: List[str] = field(default_factory=list)
    publish_date: Optional[datetime] = None
    location: str = "重庆市"
    
    def __post_init__(self):
        if not self.description:
            self.description = self.title


@dataclass
class PublishResult:
    """发布结果"""
    success: bool
    platform: str
    video_id: str = ""
    video_url: str = ""
    message: str = ""
    error: str = ""


@dataclass
class WorkItem:
    """作品数据"""
    work_id: str
    title: str
    cover_url: str = ""
    video_url: str = ""
    duration: int = 0  # 秒
    status: str = "published"  # published, reviewing, rejected, draft
    publish_time: str = ""
    play_count: int = 0
    like_count: int = 0
    comment_count: int = 0
    share_count: int = 0
    collect_count: int = 0
    
    def to_dict(self) -> Dict[str, Any]:
        return {
            "work_id": self.work_id,
            "title": self.title,
            "cover_url": self.cover_url,
            "video_url": self.video_url,
            "duration": self.duration,
            "status": self.status,
            "publish_time": self.publish_time,
            "play_count": self.play_count,
            "like_count": self.like_count,
            "comment_count": self.comment_count,
            "share_count": self.share_count,
            "collect_count": self.collect_count,
        }


@dataclass
class CommentItem:
    """评论数据"""
    comment_id: str
    work_id: str
    content: str
    author_id: str = ""
    author_name: str = ""
    author_avatar: str = ""
    like_count: int = 0
    reply_count: int = 0
    create_time: str = ""
    is_author: bool = False  # 是否是作者的评论
    replies: List['CommentItem'] = field(default_factory=list)
    
    def to_dict(self) -> Dict[str, Any]:
        return {
            "comment_id": self.comment_id,
            "work_id": self.work_id,
            "content": self.content,
            "author_id": self.author_id,
            "author_name": self.author_name,
            "author_avatar": self.author_avatar,
            "like_count": self.like_count,
            "reply_count": self.reply_count,
            "create_time": self.create_time,
            "is_author": self.is_author,
            "replies": [r.to_dict() for r in self.replies],
        }


@dataclass
class WorksResult:
    """作品列表结果"""
    success: bool
    platform: str
    works: List[WorkItem] = field(default_factory=list)
    total: int = 0
    has_more: bool = False
    error: str = ""
    
    def to_dict(self) -> Dict[str, Any]:
        return {
            "success": self.success,
            "platform": self.platform,
            "works": [w.to_dict() for w in self.works],
            "total": self.total,
            "has_more": self.has_more,
            "error": self.error,
        }


@dataclass
class CommentsResult:
    """评论列表结果"""
    success: bool
    platform: str
    work_id: str
    comments: List[CommentItem] = field(default_factory=list)
    total: int = 0
    has_more: bool = False
    error: str = ""
    
    def to_dict(self) -> Dict[str, Any]:
        return {
            "success": self.success,
            "platform": self.platform,
            "work_id": self.work_id,
            "comments": [c.to_dict() for c in self.comments],
            "total": self.total,
            "has_more": self.has_more,
            "error": self.error,
        }


class BasePublisher(ABC):
    """
    平台发布基类
    所有平台发布器都需要继承此类
    """
    
    platform_name: str = "base"
    login_url: str = ""
    publish_url: str = ""
    cookie_domain: str = ""
    
    def __init__(self, headless: bool = True):
        self.headless = headless
        self.browser: Optional[Browser] = None
        self.context: Optional[BrowserContext] = None
        self.page: Optional[Page] = None
        self.on_progress: Optional[Callable[[int, str], None]] = None
    
    def set_progress_callback(self, callback: Callable[[int, str], None]):
        """设置进度回调"""
        self.on_progress = callback
    
    def report_progress(self, progress: int, message: str):
        """报告进度"""
        print(f"[{self.platform_name}] [{progress}%] {message}")
        if self.on_progress:
            self.on_progress(progress, message)
    
    @staticmethod
    def parse_cookies(cookies_str: str) -> list:
        """解析 cookie 字符串为列表"""
        try:
            cookies = json.loads(cookies_str)
            if isinstance(cookies, list):
                return cookies
        except json.JSONDecodeError:
            pass
        
        # 字符串格式: name=value; name2=value2
        cookies = []
        for item in cookies_str.split(';'):
            item = item.strip()
            if '=' in item:
                name, value = item.split('=', 1)
                cookies.append({
                    'name': name.strip(),
                    'value': value.strip(),
                    'domain': '',
                    'path': '/'
                })
        return cookies
    
    @staticmethod
    def cookies_to_string(cookies: list) -> str:
        """将 cookie 列表转换为字符串"""
        return '; '.join([f"{c['name']}={c['value']}" for c in cookies])
    
    async def init_browser(self, storage_state: str = None):
        """初始化浏览器"""
        playwright = await async_playwright().start()
        self.browser = await playwright.chromium.launch(headless=self.headless)
        
        if storage_state and os.path.exists(storage_state):
            self.context = await self.browser.new_context(storage_state=storage_state)
        else:
            self.context = await self.browser.new_context()
        
        self.page = await self.context.new_page()
        return self.page
    
    async def set_cookies(self, cookies: list):
        """设置 cookies"""
        if not self.context:
            raise Exception("Browser context not initialized")
        
        # 设置默认域名
        for cookie in cookies:
            if 'domain' not in cookie or not cookie['domain']:
                cookie['domain'] = self.cookie_domain
        
        await self.context.add_cookies(cookies)
    
    async def close_browser(self):
        """关闭浏览器"""
        if self.context:
            await self.context.close()
        if self.browser:
            await self.browser.close()
    
    async def save_cookies(self, file_path: str):
        """保存 cookies 到文件"""
        if self.context:
            await self.context.storage_state(path=file_path)
    
    async def wait_for_upload_complete(self, success_selector: str, timeout: int = 300):
        """等待上传完成"""
        if not self.page:
            raise Exception("Page not initialized")
        
        for _ in range(timeout // 3):
            try:
                count = await self.page.locator(success_selector).count()
                if count > 0:
                    return True
            except:
                pass
            await asyncio.sleep(3)
            self.report_progress(30, "正在上传视频...")
        
        return False
    
    @abstractmethod
    async def publish(self, cookies: str, params: PublishParams) -> PublishResult:
        """
        发布视频 - 子类必须实现
        
        Args:
            cookies: cookie 字符串或 JSON
            params: 发布参数
            
        Returns:
            PublishResult: 发布结果
        """
        pass
    
    async def get_works(self, cookies: str, page: int = 0, page_size: int = 20) -> WorksResult:
        """
        获取作品列表 - 子类可覆盖实现
        
        Args:
            cookies: cookie 字符串或 JSON
            page: 页码（从0开始）
            page_size: 每页数量
            
        Returns:
            WorksResult: 作品列表结果
        """
        return WorksResult(
            success=False,
            platform=self.platform_name,
            error="该平台暂不支持获取作品列表"
        )
    
    async def get_comments(self, cookies: str, work_id: str, cursor: str = "") -> CommentsResult:
        """
        获取作品评论 - 子类可覆盖实现
        
        Args:
            cookies: cookie 字符串或 JSON
            work_id: 作品ID
            cursor: 分页游标
            
        Returns:
            CommentsResult: 评论列表结果
        """
        return CommentsResult(
            success=False,
            platform=self.platform_name,
            work_id=work_id,
            error="该平台暂不支持获取评论"
        )
    
    async def run(self, cookies: str, params: PublishParams) -> PublishResult:
        """
        运行发布任务
        包装了 publish 方法，添加了异常处理和资源清理
        """
        try:
            return await self.publish(cookies, params)
        except Exception as e:
            import traceback
            traceback.print_exc()
            return PublishResult(
                success=False,
                platform=self.platform_name,
                error=str(e)
            )
        finally:
            await self.close_browser()
    
    async def run_get_works(self, cookies: str, page: int = 0, page_size: int = 20) -> WorksResult:
        """
        运行获取作品任务
        """
        try:
            return await self.get_works(cookies, page, page_size)
        except Exception as e:
            import traceback
            traceback.print_exc()
            return WorksResult(
                success=False,
                platform=self.platform_name,
                error=str(e)
            )
        finally:
            await self.close_browser()
    
    async def run_get_comments(self, cookies: str, work_id: str, cursor: str = "") -> CommentsResult:
        """
        运行获取评论任务
        """
        try:
            return await self.get_comments(cookies, work_id, cursor)
        except Exception as e:
            import traceback
            traceback.print_exc()
            return CommentsResult(
                success=False,
                platform=self.platform_name,
                work_id=work_id,
                error=str(e)
            )
        finally:
            await self.close_browser()