#!/usr/bin/env python
# -*- coding: utf-8 -*-

from PySide2 import QtCore, QtGui, QtWidgets
import maya.OpenMayaUI as omui
from shiboken2 import wrapInstance
from scripts import config
from scripts.ui import menu, toolshelf, meshes, rigging, behaviour, definition

class MetaFusion(QtWidgets.QMainWindow):
    def __init__(self, parent=None):
        super(MetaFusion, self).__init__(parent)
        self._setup_ui()
        self._create_connections()
        self._load_style()
        
    def _setup_ui(self):
        """设置UI布局"""
        # === 设置窗口属性 ===
        self.setWindowTitle(f"{config.TOOL_NAME} {config.TOOL_VERSION}")
        # 设置初始大小和最小大小
        self.resize(550, 700)  # 初始大小
        self.setMinimumSize(550, 700)  # 最小大小限制

        # === 创建中心部件 ===
        self.central_widget = QtWidgets.QWidget()
        self.setCentralWidget(self.central_widget)
        
        # === Main Layout ===
        self.main_layout = QtWidgets.QVBoxLayout(self.central_widget)
        self.main_layout.setContentsMargins(0, 0, 0, 0)
        self.main_layout.setSpacing(0)
        
        # === 创建菜单栏 ===
        self.menu_bar = menu.MenuBar(self)
        self.setMenuBar(self.menu_bar)
        
        # === 创建工具架 ===
        self.tool_shelf = toolshelf.ToolShelf(self)
        self.main_layout.addWidget(self.tool_shelf)
        
        # === 创建标签页 ===
        self.tab_widget = QtWidgets.QTabWidget()
        self.main_layout.addWidget(self.tab_widget)
        
        # 添加各个功能页面
        self._create_tabs()
        
        # === 创建状态栏 ===
        self.status_bar = self._create_status_bar()
        self.setStatusBar(self.status_bar)
        
        # 设置窗口位置居中
        self._center_window()
        
    def _center_window(self):
        """将窗口居中显示"""
        # 获取主屏幕几何信息
        screen = QtWidgets.QApplication.primaryScreen().geometry()
        # 计算窗口居中位置
        x = (screen.width() - self.width()) // 2
        y = (screen.height() - self.height()) // 2
        # 移动窗口
        self.move(x, y)

    def _create_tabs(self):
        """创建标签页"""
        # Meshes标签页
        self.meshes_tab = meshes.MeshesTab()
        self.tab_widget.addTab(self.meshes_tab, "模型")
        
        # Rigging标签页
        self.rigging_tab = rigging.RiggingTab()
        self.tab_widget.addTab(self.rigging_tab, "绑定")
        
        # Behaviour标签页
        self.behaviour_tab = behaviour.BehaviourTab()
        self.tab_widget.addTab(self.behaviour_tab, "行为")
        
        # Definition标签页
        self.definition_tab = definition.DefinitionTab()
        self.tab_widget.addTab(self.definition_tab, "定义")
        
    def _create_status_bar(self):
        """创建状态栏"""
        # === Widget ===
        status_bar = QtWidgets.QStatusBar()
        
        # 添加版本信息
        version_label = QtWidgets.QLabel(f"{config.TOOL_VERSION}")
        status_bar.addPermanentWidget(version_label)
        
        # 添加Maya版本信息
        maya_version_label = QtWidgets.QLabel(f"Maya {config.MAYA_VERSION}")
        status_bar.addPermanentWidget(maya_version_label)
        
        # 添加Python版本信息
        python_version_label = QtWidgets.QLabel(f"Python {config.PYTHON_VERSION}")
        status_bar.addPermanentWidget(python_version_label)
        
        return status_bar
        
    def _load_style(self):
        """加载样式表"""
        try:
            with open(config.TOOL_STYLE_FILE, "r", encoding="utf-8") as f:
                style = f.read()
                self.setStyleSheet(style)
        except Exception as e:
            print(f"加载样式表失败: {str(e)}")
            
    def _create_connections(self):
        """创建信号连接"""
        # 标签页切换
        self.tab_widget.currentChanged.connect(self._on_tab_changed)
        
    def _on_tab_changed(self, index):
        """标签页切换事件"""
        tab_name = self.tab_widget.tabText(index)
        self.status_bar.showMessage(f"当前页面: {tab_name}")
        
    def closeEvent(self, event):
        """关闭窗口事件"""
        # TODO: 实现关闭前的保存提示等逻辑
        event.accept()


def show():
    """显示主窗口"""
    # 获取Maya主窗口
    maya_main_window = wrapInstance(int(omui.MQtUtil.mainWindow()), QtWidgets.QWidget)
    
    # 创建并显示插件窗口
    global meta_fusion_window
    meta_fusion_window = MetaFusion(parent=maya_main_window)
    meta_fusion_window.show()


if __name__ == "__main__":
    show()