#!/usr/bin/env python3
# -*- coding: utf-8 -*-
"""
Windows任务栏图标修复模块
解决PyQt5应用在任务栏显示Python图标的问题
"""

import os
import sys
from PyQt5.QtGui import QIcon, QPixmap
from PyQt5.QtCore import QSize

def get_resource_path(relative_path):
    """获取资源文件的绝对路径，兼容开发环境和PyInstaller打包环境"""
    try:
        # PyInstaller打包后的环境
        if getattr(sys, 'frozen', False):
            # 获取可执行文件目录
            exe_dir = os.path.dirname(sys.executable)
            
            # 检查新版PyInstaller的_internal目录结构
            internal_dir = os.path.join(exe_dir, "_internal")
            if os.path.exists(internal_dir):
                # 新版PyInstaller: exe在外面，资源在_internal里
                base_path = internal_dir
                print(f"[INFO] 检测到PyInstaller _internal 结构: {internal_dir}")
            else:
                # 老版PyInstaller或onefile模式
                if hasattr(sys, '_MEIPASS'):
                    # 一次性临时解压目录
                    base_path = sys._MEIPASS
                    print(f"[INFO] 使用PyInstaller临时解压目录: {base_path}")
                else:
                    # 直接exe目录
                    base_path = exe_dir
                    print(f"[INFO] 使用exe目录: {base_path}")
        else:
            # 开发环境：需要智能判断项目根目录
            script_dir = os.path.dirname(os.path.abspath(__file__))
            # 检查当前目录是否包含static文件夹（即为项目根目录）
            if os.path.exists(os.path.join(script_dir, "static")):
                base_path = script_dir
                print(f"[INFO] 开发环境基础路径(当前目录): {base_path}")
            else:
                # 如果当前目录没有static，尝试上级目录
                parent_dir = os.path.dirname(script_dir)
                if os.path.exists(os.path.join(parent_dir, "static")):
                    base_path = parent_dir
                    print(f"[INFO] 开发环境基础路径(上级目录): {base_path}")
                else:
                    # 如果都找不到，默认使用当前目录
                    base_path = script_dir
                    print(f"[INFO] 开发环境基础路径(默认当前): {base_path}")
        
        # 组合完整路径
        full_path = os.path.join(base_path, relative_path)
        print(f"[INFO] 资源路径: {relative_path} -> {full_path}")
        return full_path
        
    except Exception as e:
        print(f"[ERROR] 获取资源路径失败: {e}")
        return relative_path

def set_windows_app_id(app_id="ShuidropAI.CustomerService.1.0"):
    """设置Windows应用程序用户模型ID"""
    try:
        import ctypes
        ctypes.windll.shell32.SetCurrentProcessExplicitAppUserModelID(app_id)
        print(f"[INFO] Windows应用ID已设置: {app_id}")
        return True
    except Exception as e:
        print(f"[WARNING] 设置Windows应用ID失败: {e}")
        return False

def create_multi_size_icon():
    """创建包含多种尺寸的QIcon对象"""
    try:
        icon = QIcon()
        
        # 我们有的图标文件
        available_files = [
            ("static/ai_assistant_icon_16.png", 16),
            ("static/ai_assistant_icon_32.png", 32), 
            ("static/ai_assistant_icon_64.png", 64),
        ]
        
        icon_loaded = False
        for relative_path, size in available_files:
            icon_path = get_resource_path(relative_path)
            if os.path.exists(icon_path):
                icon.addFile(icon_path, QSize(size, size))
                print(f"[INFO] 添加图标 {size}x{size}: {os.path.basename(icon_path)}")
                icon_loaded = True
            else:
                print(f"[WARNING] 图标文件不存在: {icon_path}")
        
        # 如果没有加载任何图标，尝试加载单个文件
        if not icon_loaded:
            fallback_path = get_resource_path("static/ai_assistant_icon_32.png")
            if os.path.exists(fallback_path):
                icon = QIcon(fallback_path)
                print(f"[INFO] 使用备用图标: {fallback_path}")
                icon_loaded = True
        
        if not icon_loaded:
            print("[WARNING] 没有找到任何图标文件，将使用系统默认图标")
        
        return icon
        
    except Exception as e:
        print(f"[ERROR] 创建多尺寸图标失败: {e}")
        return QIcon()

def setup_windows_taskbar_icon(app, window=None):
    """完整设置Windows任务栏图标"""
    print("[INFO] 开始设置Windows任务栏图标...")
    
    # 1. 设置应用程序唯一ID
    set_windows_app_id()
    
    # 2. 创建多尺寸图标
    icon = create_multi_size_icon()
    
    # 3. 设置应用程序级别图标
    app.setWindowIcon(icon)
    print("[INFO] 应用程序图标已设置")
    
    # 4. 如果提供了窗口，也设置窗口图标
    if window:
        window.setWindowIcon(icon)
        print("[INFO] 窗口图标已设置")
    
    # 5. 强制刷新应用程序图标缓存
    try:
        if window and hasattr(window, 'winId'):
            # 等待窗口完全初始化
            from PyQt5.QtCore import QTimer
            def delayed_icon_refresh():
                try:
                    window.setWindowIcon(icon)
                    print("[INFO] 已延迟刷新窗口图标")
                except Exception as e:
                    print(f"[WARNING] 延迟图标刷新失败: {e}")
            
            # 延迟100ms再次设置图标
            QTimer.singleShot(100, delayed_icon_refresh)
            
    except Exception as e:
        print(f"[WARNING] 图标刷新失败: {e}")
    
    print("[INFO] Windows任务栏图标设置完成")
    return icon

if __name__ == "__main__":
    # 测试模块
    from PyQt5.QtWidgets import QApplication, QMainWindow, QLabel
    
    app = QApplication(sys.argv)
    window = QMainWindow()
    window.setWindowTitle("任务栏图标测试")
    window.setCentralWidget(QLabel("测试Windows任务栏图标"))
    
    # 设置任务栏图标
    setup_windows_taskbar_icon(app, window)
    
    window.show()
    sys.exit(app.exec_())