# main.py
import sys
import traceback
import os

# 添加项目根目录到Python路径
project_root = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
sys.path.insert(0, project_root)

# 设置Qt平台插件路径 - 优先使用系统Qt插件
system_qt_plugins_path = '/usr/local/opt/qt5/plugins'  # macOS Homebrew Qt5路径
venv_qt_plugins_path = os.path.join(project_root, '.venv', 'lib', 'python3.9', 'site-packages', 'PyQt5', 'Qt5', 'plugins')

# 优先检查系统Qt插件路径
if os.path.exists(system_qt_plugins_path):
    os.environ['QT_QPA_PLATFORM_PLUGIN_PATH'] = system_qt_plugins_path
elif os.path.exists(venv_qt_plugins_path):
    os.environ['QT_QPA_PLATFORM_PLUGIN_PATH'] = venv_qt_plugins_path

from PyQt5.QtWidgets import QApplication
from PyQt5.QtCore import Qt
from PyQt5.QtGui import QIcon
from src.main_window import MainWindow

# 设置高DPI支持（必须在QApplication创建之前）
QApplication.setAttribute(Qt.AA_EnableHighDpiScaling, True)
QApplication.setAttribute(Qt.AA_UseHighDpiPixmaps, True)

def main():
    """
    应用程序主入口点
    - 创建QApplication实例
    - 设置应用程序属性
    - 创建MainWindow实例
    - 显示窗口
    - 启动事件循环
    - 返回退出码
    """
    try:
        # 创建QApplication实例
        app = QApplication(sys.argv)
        
        # 设置应用程序属性
        app.setApplicationName("隐私学习软件")
        app.setApplicationVersion("0.1.0")
        app.setOrganizationName("MagicWord Team")
        
        # 设置窗口图标（如果存在）
        icon_path = os.path.join(project_root, 'resources', 'icons', 'app_icon.png')
        if os.path.exists(icon_path):
            app.setWindowIcon(QIcon(icon_path))
        else:
            # 使用默认图标
            app.setWindowIcon(QIcon())
        
        # 创建主窗口
        window = MainWindow()
        window.show()
        
        # 启动事件循环并返回退出码
        exit_code = app.exec_()
        sys.exit(exit_code)
        
    except Exception as e:
        # 打印详细的错误信息
        print(f"应用程序发生未捕获的异常: {e}")
        traceback.print_exc()
        sys.exit(1)

if __name__ == "__main__":
    main()