from PyQt5.QtWidgets import QDialog, QVBoxLayout, QHBoxLayout, QLabel, QComboBox, QPushButton
from PyQt5.QtCore import Qt
from PyQt5.QtGui import QFont


class SwitchVarModelDialog(QDialog):
    """变量值类型选择对话框"""
    
    def __init__(self, parent=None):
        super().__init__(parent)
        self.setWindowTitle('选择变量值类型')
        self.setFixedSize(380, 300) # 增加高度避免遮挡，并保持与用户最新修改一致
        self.setModal(True)
        self.selectedType = None
        
        # 设置窗口样式
        self.setWindowFlags(Qt.Dialog | Qt.WindowCloseButtonHint)
        
        # 应用样式
        self.setStyleSheet(self.getStyleSheet())
        
        self.setupUI()
    
    def setupUI(self):
        """设置界面"""
        # 创建主布局
        mainLayout = QVBoxLayout()
        mainLayout.setSpacing(20)
        mainLayout.setContentsMargins(30, 30, 30, 30)
        
        # 标题标签
        titleLabel = QLabel('选择变量值类型')
        titleLabel.setObjectName('titleLabel') # 用于样式表
        mainLayout.addWidget(titleLabel)
        
        # 说明标签
        infoLabel = QLabel('请选择您要将变量切换到的值类型：')
        infoLabel.setObjectName('infoLabel') # 用于样式表
        mainLayout.addWidget(infoLabel)
        
        # 创建combobox
        self.comboBox = QComboBox()
        self.comboBox.setObjectName('valueTypeComboBox') # 用于样式表
        self.comboBox.addItems(['本地值', '远程值', '模拟值'])
        self.comboBox.setCurrentText('本地值')  # 默认选择本地值
        mainLayout.addWidget(self.comboBox)
        
        # 添加更多弹性空间，确保按钮不会遮挡下拉框
        mainLayout.addStretch(2)
        
        # 创建按钮布局
        buttonLayout = QHBoxLayout()
        buttonLayout.setSpacing(15)
        
        # 确定按钮
        okButton = QPushButton('确定')
        okButton.setObjectName('okButton') # 用于样式表
        okButton.clicked.connect(self.accept)
        buttonLayout.addWidget(okButton)
        
        # 取消按钮
        cancelButton = QPushButton('取消')
        cancelButton.setObjectName('cancelButton') # 用于样式表
        cancelButton.clicked.connect(self.reject)
        buttonLayout.addWidget(cancelButton)
        
        mainLayout.addLayout(buttonLayout)
        self.setLayout(mainLayout)
    
    def getSelectedType(self):
        """获取选择的类型"""
        return self.comboBox.currentText()

    def getStyleSheet(self):
        """返回对话框的样式表"""
        return """
        QDialog {
            background-color: #F8F9FA;
            border-radius: 12px;
            border: 1px solid #E5E7EB;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
        }

        QLabel#titleLabel {
            font-size: 18px;
            font-weight: 600;
            color: #1F2937;
            margin-bottom: 10px;
        }

        QLabel#infoLabel {
            font-size: 14px;
            color: #6B7280;
            margin-bottom: 15px;
        }

        QComboBox#valueTypeComboBox {
            border: 1px solid #D1D5DB;
            border-radius: 8px;
            padding: 8px 12px;
            font-size: 14px;
            color: #374151;
            background-color: #FFFFFF;
            min-height: 36px;
        }

        QComboBox#valueTypeComboBox:hover {
            border-color: #9CA3AF;
        }

        QComboBox#valueTypeComboBox:focus {
            border-color: #2277EF;
            outline: none;
        }

        QComboBox#valueTypeComboBox::drop-down {
            subcontrol-origin: padding;
            subcontrol-position: top right;
            width: 25px;
            border-left-width: 1px;
            border-left-color: #D1D5DB;
            border-left-style: solid;
            border-top-right-radius: 8px;
            border-bottom-right-radius: 8px;
        }

        QComboBox#valueTypeComboBox::down-arrow {
            image: url(./Static/down_arrow.png); /* 假设有一个向下箭头图标 */
            width: 16px;
            height: 16px;
        }

        QComboBox#valueTypeComboBox QAbstractItemView {
            border: 1px solid #E5E7EB;
            border-radius: 8px;
            background-color: #FFFFFF;
            selection-background-color: #EBF8FF;
            selection-color: #1D4ED8;
            outline: none;
            padding: 5px;
        }

        QComboBox#valueTypeComboBox QAbstractItemView::item {
            min-height: 32px;
            padding: 5px 10px;
            border-radius: 6px;
        }

        QComboBox#valueTypeComboBox QAbstractItemView::item:hover {
            background-color: #F3F4F6;
        }

        /* 使用项目之前的按钮样式 */
        QPushButton {
            border: none;
            outline: none;
            font-family: "PingFangSC-Medium", "Microsoft YaHei", sans-serif;
            font-size: 14px;
            font-weight: 600;
            padding: 8px 16px;
            border-radius: 6px;
            min-width: 80px;
            min-height: 32px;
        }
        
        /* 确定按钮样式 - 使用项目蓝色主题 */
        QPushButton#okButton {
            background: qlineargradient(x1:0, y1:0, x2:0, y2:1,
                    stop:0 #2277EF,
                    stop:1 #1976D2);
            color: #FFFFFF;
            border: 1px solid #1976D2;
        }
        
        QPushButton#okButton:hover {
            background: qlineargradient(x1:0, y1:0, x2:0, y2:1,
                    stop:0 #3B82F6,
                    stop:1 #2277EF);
            border-color: #2277EF;
        }
        
        QPushButton#okButton:pressed {
            background: qlineargradient(x1:0, y1:0, x2:0, y2:1,
                    stop:0 #1976D2,
                    stop:1 #1565C0);
            border-color: #1565C0;
        }
        
        /* 取消按钮样式 - 使用项目灰色主题 */
        QPushButton#cancelButton {
            background-color: #F9FAFB;
            color: #6B7280;
            border: 1px solid #E5E7EB;
        }
        
        QPushButton#cancelButton:hover {
            background-color: #F3F4F6;
            border-color: #D1D5DB;
            color: #4B5563;
        }
        
        QPushButton#cancelButton:pressed {
            background-color: #E5E7EB;
            border-color: #9CA3AF;
            color: #374151;
        }
        """