# coding: utf-8
from PyQt6.QtCore import Qt
from qfluentwidgets import (
    InfoBar,
    InfoBarPosition,
    LineEdit,
    MessageBoxBase,
    SubtitleLabel,
)

from app.core import CreateFolderThread, signalBus


class NewFolderMessageBox(MessageBoxBase):
    """新建文件夹对话框"""

    def __init__(self, parent=None):
        super().__init__(parent=parent)
        self._setupUi()
        self._connectSignals()

        # 线程引用，防止被垃圾回收
        self.createFolderThread = None

    def _setupUi(self):
        """设置UI界面"""
        self.titleLabel = SubtitleLabel("新建文件夹", self)
        self.nameLineEdit = LineEdit(self)
        self.nameLineEdit.setPlaceholderText("请输入文件夹名称")
        self.nameLineEdit.setClearButtonEnabled(True)

        # 设置对话框属性
        self.widget.setMinimumWidth(400)
        self.yesButton.setText("新建")
        self.cancelButton.setText("取消")

        # 添加组件到布局
        self.viewLayout.addWidget(self.titleLabel)
        self.viewLayout.addWidget(self.nameLineEdit)

        # 初始时禁用确认按钮
        self.yesButton.setEnabled(False)

    def _connectSignals(self):
        """连接信号槽"""
        self.yesButton.clicked.connect(self._onCreateClicked)
        self.nameLineEdit.textChanged.connect(self._onTextChanged)
        self.nameLineEdit.returnPressed.connect(self._onReturnPressed)

    def _onTextChanged(self, text):
        """文本框内容变化时的处理"""
        # 检查文件夹名称是否有效
        is_valid = bool(text.strip()) and not any(char in text for char in '/\\:*?"<>|')
        self.yesButton.setEnabled(is_valid)

        if not is_valid and text.strip():
            self.nameLineEdit.setToolTip('文件夹名称不能包含 /\\:*?"<>| 等特殊字符')
        else:
            self.nameLineEdit.setToolTip("")

    def _onReturnPressed(self):
        """回车键处理"""
        if self.yesButton.isEnabled():
            self._onCreateClicked()

    def _onCreateClicked(self):
        """创建文件夹按钮点击处理"""
        folder_name = self.nameLineEdit.text().strip()
        if not folder_name:
            return

        # 禁用按钮防止重复点击
        self._setUiEnabled(False)
        self.yesButton.setText("创建中...")

        # 创建并启动线程
        self.createFolderThread = CreateFolderThread(folder_name)
        self.createFolderThread.successSignal.connect(self._onCreateSuccess)
        self.createFolderThread.errorSignal.connect(self._onCreateError)
        self.createFolderThread.start()

    def _setUiEnabled(self, enabled):
        """设置UI启用状态"""
        self.yesButton.setEnabled(enabled)
        self.cancelButton.setEnabled(enabled)
        self.nameLineEdit.setEnabled(enabled)

    def _onCreateSuccess(self):
        """创建成功处理"""
        self._showInfoBar("success", "操作成功", "新建文件夹成功")
        signalBus.refreshFolderListSignal.emit()
        """线程完成时的清理工作"""
        self.yesButton.setText("新建")
        self._setUiEnabled(True)
        self.accept()

    def _onCreateError(self, error_msg):
        """创建失败处理"""
        self._showInfoBar("error", "操作失败", error_msg)
        # 不关闭对话框，让用户有机会修改后重试
        self.nameLineEdit.setFocus()
        self.nameLineEdit.selectAll()
        """线程完成时的清理工作"""
        self.yesButton.setText("新建")
        self._setUiEnabled(True)

    def _showInfoBar(self, type_, title, content):
        """显示信息栏"""
        if type_ == "success":
            InfoBar.success(
                title=title,
                content=content,
                orient=Qt.Orientation.Horizontal,
                isClosable=True,
                position=InfoBarPosition.TOP_RIGHT,
                duration=2000,
                parent=self.window(),
            )
        else:
            InfoBar.error(
                title=title,
                content=content,
                orient=Qt.Orientation.Horizontal,
                isClosable=True,
                position=InfoBarPosition.TOP_RIGHT,
                duration=3000,  # 错误信息显示稍长时间
                parent=self.window(),
            )

    def showEvent(self, event):
        """显示事件处理"""
        super().showEvent(event)
        self.nameLineEdit.setFocus()

    def closeEvent(self, event):
        """关闭事件处理"""
        # 确保线程安全退出
        if self.createFolderThread and self.createFolderThread.isRunning():
            self.createFolderThread.quit()
            self.createFolderThread.wait(1000)  # 等待1秒

        super().closeEvent(event)