from __future__ import annotations

import os
import time
from typing import Optional, Callable
from playwright.sync_api import sync_playwright

class QuarkUploader:
    """
    夸克网盘上传工具 - 终极稳健版 (双重状态锁)
    """
    def __init__(self, chrome_path: str, cookies_dir: str, log_callback: Optional[Callable[[str], None]] = None):
        self.chrome_path = chrome_path
        self.cookies_dir = cookies_dir
        self.log_callback = log_callback
        self.url = "https://pan.quark.cn/"
        
        if not os.path.exists(self.cookies_dir):
            os.makedirs(self.cookies_dir, exist_ok=True)

    def _log(self, message: str):
        print(message)
        if self.log_callback:
            self.log_callback(message)

    def upload_file(self, file_path: str, target_folder_name: str, root_path: str = "精品项目整理") -> bool:
        """
        上传文件到夸克网盘
        """
        if not os.path.exists(file_path):
            self._log(f"错误: 本地文件不存在 {file_path}")
            return False

        filename = os.path.basename(file_path)

        try:
            with sync_playwright() as p:
                self._log(f"正在启动浏览器...")
                launch_args = {
                    "user_data_dir": self.cookies_dir,
                    "headless": False,
                    "viewport": {"width": 1280, "height": 800}
                }
                if self.chrome_path and os.path.exists(self.chrome_path):
                    launch_args["executable_path"] = self.chrome_path
                
                context = p.chromium.launch_persistent_context(**launch_args)
                page = context.new_page()
                
                self._log("正在打开夸克网盘...")
                page.goto(self.url, wait_until="networkidle")
                
                # 1. 登录检测
                try:
                    page.wait_for_selector("text=全部文件", timeout=10000)
                except:
                    self._log("请在浏览器中完成登录...")
                    page.wait_for_selector("text=全部文件", timeout=180000)
                
                # 2. 导航到目录
                self._log(f"定位目录: {root_path} > {target_folder_name}")
                page.get_by_text("全部文件").first.click()
                page.wait_for_timeout(2000)
                
                # 进入根目录
                if not page.get_by_text(root_path, exact=True).first.is_visible():
                    self._create_folder(page, root_path)
                page.get_by_text(root_path, exact=True).first.dblclick()
                page.wait_for_timeout(1000)
                
                # 进入项目目录
                if not page.get_by_text(target_folder_name, exact=True).first.is_visible():
                    self._create_folder(page, target_folder_name)
                page.get_by_text(target_folder_name, exact=True).first.dblclick()
                page.wait_for_timeout(2000)
                
                # 3. 查重
                if page.get_by_text(filename, exact=True).count() > 0:
                    self._log(f"云端已存在 '{filename}'，跳过上传。")
                    context.close()
                    return True
                
                # 4. 执行上传
                self._log(f"开始上传: {filename}")
                # 清除可能存在的旧“上传成功”提示
                page.evaluate("() => { const els = document.querySelectorAll('.ant-notification-notice'); els.forEach(e => e.remove()); }")
                
                page.set_input_files("input[type=file]", file_path)
                
                # 5. 确认上传已启动 (关键一步)
                self._log("等待上传任务初始化...")
                try:
                    # 等待出现任何进度指示元素
                    page.wait_for_selector("text=% , .ant-progress-inner, text=正在上传", timeout=20000)
                    self._log("检测到上传流已建立。")
                except:
                    self._log("警告：未检测到明显的进度条，可能由于文件较小或 UI 延迟，继续监测列表状态。")

                # 6. 深度监测循环
                self._log("进入深度监测模式，请保持浏览器前台运行...")
                start_time = time.time()
                timeout = 1800 # 30分钟
                
                # 连续稳定次数计数
                stable_count = 0
                
                while time.time() - start_time < timeout:
                    # A. 检查全局进度标志
                    is_uploading = page.get_by_text("%").is_visible() or \
                                   page.get_by_text("正在上传").is_visible() or \
                                   page.locator(".ant-progress-inner").is_visible()
                    
                    # B. 检查列表中该行的具体状态 (精准匹配)
                    # 找到包含文件名的那一行 tr，看里面是否有“正在上传”字样
                    row_status_text = ""
                    try:
                        row = page.locator(f"tr:has-text('{filename}')").first
                        if row.is_visible():
                            row_status_text = row.inner_text()
                    except:
                        pass
                    
                    is_item_active = "正在上传" in row_status_text or "%" in row_status_text or "等待上传" in row_status_text
                    
                    # C. 确认列表里确实有这个文件
                    in_list = page.get_by_text(filename, exact=True).count() > 0
                    
                    if not is_uploading and not is_item_active and in_list:
                        stable_count += 1
                        if stable_count >= 5: # 连续 5 次检测(约 15 秒)都处于稳定态
                            self._log("检测到上传任务已从任务列表中消失，且列表文件状态正常。")
                            self._log("为了绝对安全，最后等待 15 秒进行数据落盘同步...")
                            page.wait_for_timeout(15000)
                            self._log("上传确认圆满成功！")
                            context.close()
                            return True
                        else:
                            self._log(f"上传疑似完成，正在进行稳定性校验 ({stable_count}/5)...")
                    else:
                        if is_uploading or is_item_active:
                            self._log("监测到活跃传输流...")
                        stable_count = 0 # 只要发现还在传，重置计数
                    
                    time.sleep(3)

                self._log("传输任务监测超时，请确认网速或手动核实。")
                context.close()
                return False

        except Exception as e:
            self._log(f"代码执行异常: {str(e)}")
            return False

    def _create_folder(self, page, folder_name: str):
        """创建目录"""
        try:
            page.get_by_text("新建").first.click()
            page.wait_for_timeout(500)
            page.get_by_text("新建文件夹").first.click()
            page.wait_for_timeout(500)
            page.keyboard.type(folder_name)
            page.keyboard.press("Enter")
            self._log(f"已创建目录: {folder_name}")
            page.wait_for_timeout(1500)
        except:
            pass