from PySide6.QtWidgets import (QApplication, QVBoxLayout, QPushButton, QDialog)
from PySide6.QtGui import QPixmap, QFont, QIcon, QPainter
from PySide6.QtCore import Qt, Signal 
from PySide6.QtCore import Qt, Signal, QPropertyAnimation, QEasingCurve, QRect
import sys

import resources.resources_rc
from utils.image_paths import ImagePaths

class CustomButton(QPushButton):
    def __init__(self, text, normal_icon, active_icon, parent=None):
        super().__init__(text, parent)
        self.normal_icon = normal_icon
        self.active_icon = active_icon
        self.setFixedSize(147, 36)
        self.setCursor(Qt.PointingHandCursor)
        self.update_icon(self.normal_icon)
        self.setFont(QFont("", 17))
        self.setStyleSheet("""
            QPushButton {
                color: #16ffff;
                background: none;
                outline: none;
                border: none;
                text-align: center;
                background-color: transparent;
                font-weight: Bold;
            }
            QPushButton:hover {
                color: #001c83;
                background-color: #16ffff;
                background-repeat: no-repeat;
                outline: none;
                border: none;
            }
        """)

    def update_icon(self, icon_path):
        pixmap = QPixmap(icon_path)
        if not pixmap.isNull():
            scaled_pixmap = pixmap.scaled(24, 24, Qt.KeepAspectRatio, Qt.SmoothTransformation)
            self.setIcon(QIcon(scaled_pixmap))
            self.setIconSize(scaled_pixmap.size())
        else:
            self.setIcon(QIcon())

    def enterEvent(self, event):
        self.update_icon(self.active_icon)
        super().enterEvent(event)

    def leaveEvent(self, event):
        self.update_icon(self.normal_icon)
        super().leaveEvent(event)

class SystemCenterDialog(QDialog):
    # 定义三个信号，对应三个按钮的点击事件
    sys_setting_clicked = Signal()    # 系统设置点击信号
    data_center_clicked = Signal()    # 数据中心点击信号
    user_center_clicked = Signal()    # 用户中心点击信号

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

    def _init_ui(self):
        # 弹窗基础设置
        self.setWindowTitle("系统中心")
        self.setWindowFlags(Qt.FramelessWindowHint)  # 隐藏默认边框
        self.setWindowOpacity(0.0) # 初始状态为完全透明，实现动画效果
        self.hide() # 初始状态为隐藏 (必须)

        # 加载背景图
        self.background = QPixmap(ImagePaths.SYSTEM_CENTER_POPUP_BG)
        if self.background.isNull():
            print("警告：系统中心弹窗背景.png 加载失败！")
            self.setFixedSize(220, 200)
        else:
            self.setFixedSize(self.background.size())

        # 主布局
        main_layout = QVBoxLayout(self)
        main_layout.setContentsMargins(0, 0, 0, 6)
        main_layout.setSpacing(0)
        main_layout.setAlignment(Qt.AlignCenter)

        # 创建按钮并绑定信号发射
        self.sys_btn = CustomButton("系统设置", ImagePaths.SYSTEM_SETTING_BG1, ImagePaths.SYSTEM_SETTING_BG2)
        self.data_btn = CustomButton("数据中心", ImagePaths.SYSTEM_DATA_CENTER_BG1, ImagePaths.SYSTEM_DATA_CENTER_BG2)
        self.user_btn = CustomButton("用户中心", ImagePaths.SYSTEM_USER_CENTER_BG1, ImagePaths.SYSTEM_USER_CENTER_BG2)

        # 按钮点击 → 发射对应信号（dialog不处理业务逻辑，只传递事件）
        self.sys_btn.clicked.connect(self.sys_setting_clicked.emit)
        self.data_btn.clicked.connect(self.data_center_clicked.emit)
        self.user_btn.clicked.connect(self.user_center_clicked.emit)

        main_layout.addWidget(self.sys_btn)
        main_layout.addWidget(self.data_btn)
        main_layout.addWidget(self.user_btn)

    def paintEvent(self, event):
        painter = QPainter(self)
        painter.drawPixmap(self.rect(), self.background)
        super().paintEvent(event)

if __name__ == "__main__":
    app = QApplication(sys.argv)
    dialog = SystemCenterDialog()
    # 测试信号（实际业务在控制器中绑定）
    dialog.sys_setting_clicked.connect(lambda: print("系统设置被点击"))
    dialog.show()
    sys.exit(app.exec())