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

#===================================== 1. Module Imports =====================================
import maya.OpenMayaUI as omui
from scripts import config
import maya.cmds as cmds
import maya.mel as mel
import webbrowser
import sys
import os

from .. import config

QtCore, QtGui, QtWidgets, wrapInstance = config.Qt()

if QtCore is None or QtGui is None or QtWidgets is None or wrapInstance is None:
    print(f"Qt加载失败: {QtCore}, {QtGui}, {QtWidgets}, {wrapInstance}")

class MeshItem(QtWidgets.QWidget):
    """单个网格项控件"""
    def __init__(self, mesh_name, parent=None):
        super(MeshItem, self).__init__(parent)
        self._setup_ui(mesh_name)
        self._create_connections()
        
    def _setup_ui(self, mesh_name):
        """设置UI布局"""
        # === Main Layout ===
        self.main_layout = QtWidgets.QHBoxLayout(self)
        self.main_layout.setContentsMargins(2, 2, 2, 2)
        self.main_layout.setSpacing(4)
        
        # === Widgets ===
        # 网格名称标签
        self.name_label = QtWidgets.QLabel(mesh_name)
        self.name_label.setMinimumWidth(100)
        
        # 网格路径输入框
        self.path_edit = QtWidgets.QLineEdit()
        self.path_edit.setReadOnly(True)
        
        # 添加按钮
        self.add_btn = QtWidgets.QPushButton("添加...")
        self.add_btn.setFixedWidth(60)
        
        # === Layout ===
        self.main_layout.addWidget(self.name_label)
        self.main_layout.addWidget(self.path_edit)
        self.main_layout.addWidget(self.add_btn)
        
        # === Style ===
        self._setup_style()
        
    def _setup_style(self):
        """设置样式"""
        self.setStyleSheet("""
            QWidget {
                background: #2D2D2D;
            }
            QLabel {
                color: #CCCCCC;
                font-size: 12px;
            }
            QLineEdit {
                background: #3D3D3D;
                border: 1px solid #555555;
                border-radius: 2px;
                padding: 4px 8px;
                color: #CCCCCC;
            }
            QPushButton {
                background: #3D3D3D;
                border: 1px solid #555555;
                border-radius: 2px;
                padding: 4px 12px;
                color: #CCCCCC;
                min-width: 60px;
            }
            QPushButton:hover {
                background: #454545;
            }
            QPushButton:pressed {
                background: #2A2A2A;
            }
        """)
        
    def _create_connections(self):
        """创建信号连接"""
        self.add_btn.clicked.connect(self._on_add_clicked)
        
    def _on_add_clicked(self):
        """添加按钮点击"""
        # TODO: 实现添加逻辑
        pass

class MeshesTab(QtWidgets.QWidget):
    def __init__(self, parent=None):
        super(MeshesTab, self).__init__(parent)
        self._setup_ui()
        self._create_connections()
        
    def _setup_ui(self):
        """设置UI布局"""
        # === Main Layout ===
        self.main_layout = QtWidgets.QVBoxLayout(self)
        self.main_layout.setContentsMargins(0, 0, 0, 0)
        self.main_layout.setSpacing(0)
        
        # === 顶部工具栏 ===
        self.toolbar = QtWidgets.QWidget()
        toolbar_layout = QtWidgets.QHBoxLayout(self.toolbar)
        toolbar_layout.setContentsMargins(4, 4, 4, 4)
        toolbar_layout.setSpacing(4)
        
        # Meta-Human下拉框
        self.preset_combo = QtWidgets.QComboBox()
        self.preset_combo.addItem("Meta-Human")
        self.preset_combo.setFixedWidth(120)
        
        # 删除按钮移到LOD页面的功能按钮区域
        toolbar_layout.addStretch()
        
        # === 中间内容区 ===
        self.content = QtWidgets.QWidget()
        content_layout = QtWidgets.QVBoxLayout(self.content)
        content_layout.setContentsMargins(0, 0, 0, 0)
        content_layout.setSpacing(0)
        
        # LOD标签页
        self.lod_tabs = QtWidgets.QTabWidget()
        for i in range(8):
            tab = self._create_lod_page(i)
            self.lod_tabs.addTab(tab, f"LOD{i}")
        
        content_layout.addWidget(self.lod_tabs)
        
        # === 底部工具栏 ===
        self.bottom_toolbar = self._create_bottom_toolbar()
        
        # === 添加到主布局 ===
        self.main_layout.addWidget(self.toolbar)
        self.main_layout.addWidget(self.content)
        self.main_layout.addWidget(self.bottom_toolbar)
        
        # === 设置样式 ===
        self._setup_style()
        
    def _create_lod_page(self, lod_index):
        """创建单个LOD页面"""
        # === Widget ===
        widget = QtWidgets.QWidget()
        
        # === Main Layout ===
        layout = QtWidgets.QVBoxLayout(widget)
        layout.setContentsMargins(8, 8, 8, 8)
        layout.setSpacing(12)  # 增加间距
        
        # === 网格列表区域 ===
        scroll = QtWidgets.QScrollArea()
        scroll.setWidgetResizable(True)
        scroll.setFrameShape(QtWidgets.QFrame.NoFrame)
        
        content = QtWidgets.QWidget()
        content_layout = QtWidgets.QVBoxLayout(content)
        content_layout.setContentsMargins(0, 0, 0, 0)
        content_layout.setSpacing(0)  # 将项目间距改为0
        
        # 创建网格项
        meshes = config.LOD_MESHES[f"LOD{lod_index}"]
        for mesh in meshes:
            item = self._create_mesh_item(mesh)
            content_layout.addWidget(item)
        
        content_layout.addStretch()
        scroll.setWidget(content)
        
        # === 底部功能按钮 ===
        buttons = QtWidgets.QWidget()
        button_layout = QtWidgets.QHBoxLayout(buttons)
        button_layout.setContentsMargins(0, 8, 0, 8)
        
        # 创建功能按钮
        load_btn = self._create_tool_button("自动加载模型", "load_meshes.png", "fileOpen.png")
        standardize_btn = self._create_tool_button("标准化命名", "standardized_naming.png", "setEdNormalize.png")
        group_btn = self._create_tool_button("自动分组", "automatic_grouping.png", "menuIconEdit.png")
        delete_btn = self._create_tool_button("清理", "delete.png", "delete.png")
        
        # 统一按钮高度
        for btn in [load_btn, standardize_btn, group_btn, delete_btn]:
            btn.setFixedHeight(32)  # 设置为与模型分离按钮相同的高度
        
        # 创建按钮容器
        button_container = QtWidgets.QWidget()
        container_layout = QtWidgets.QHBoxLayout(button_container)
        container_layout.setContentsMargins(0, 0, 0, 0)
        container_layout.setSpacing(4)  # 减小按钮间距为4
        
        # 添加按钮到容器，使用弹性空间使按钮居中
        container_layout.addStretch(1)
        for btn in [load_btn, standardize_btn, group_btn, delete_btn]:
            container_layout.addWidget(btn)
            if btn != delete_btn:  # 最后一个按钮后不添加间距
                container_layout.addSpacing(4)  # 添加固定间距
        container_layout.addStretch(1)
        
        button_layout.addWidget(button_container)
        
        # === 添加到主布局 ===
        layout.addWidget(scroll)
        layout.addWidget(buttons)
        
        # 添加窗口大小变化事件处理
        def on_resize(event):
            width = event.size().width()
            available_width = width - 28  # 28是左右边距(16)和按钮间距(4*3)的总和
            button_width = (available_width) // 4
            for btn in [load_btn, standardize_btn, group_btn, delete_btn]:
                btn.setFixedWidth(button_width)
            super(type(widget), widget).resizeEvent(event)
        
        widget.resizeEvent = on_resize
        
        return widget
        
    def _create_mesh_item(self, mesh_name):
        """创建网格项"""
        item = QtWidgets.QWidget()
        layout = QtWidgets.QHBoxLayout(item)
        layout.setContentsMargins(4, 0, 4, 0)  # 移除上下边距
        layout.setSpacing(4)
        
        # 设置item的最小高度，确保内容完整显示
        item.setMinimumHeight(40) 
        
        # 左侧容器（标签和输入框）
        left_container = QtWidgets.QWidget()
        left_layout = QtWidgets.QHBoxLayout(left_container)
        left_layout.setContentsMargins(0, 0, 0, 0)
        left_layout.setSpacing(1)
        
        # 网格名称标签
        name_label = QtWidgets.QLabel(mesh_name + ":")  # 添加冒号
        name_label.setFixedWidth(50)  # 减小标签宽度
        name_label.setAlignment(QtCore.Qt.AlignLeft | QtCore.Qt.AlignVCenter)
        name_label.setStyleSheet("""
            QLabel {
                color: #CCCCCC;
                padding-right: 0px;
            }
        """)
        
        # 网格路径输入框
        path_edit = QtWidgets.QLineEdit()
        path_edit.setPlaceholderText("输入或选择模型路径...")
        path_edit.setSizePolicy(QtWidgets.QSizePolicy.Expanding, QtWidgets.QSizePolicy.Fixed)
        path_edit.setFixedHeight(24)
        path_edit.setStyleSheet("""
            QLineEdit {
                background: #1d1d1d;
                border: 2px solid #444444;  /* 调整边框颜色 */
                border-radius: 5px;  /* 减小圆角 */
                padding: 2px 4px;
                color: #CCCCCC;
            }
            QLineEdit:hover {
                border: 1px solid #555555;
            }
            QLineEdit:focus {
                border: 1px solid #666666;
                background: #2A2A2A;
            }
        """)
        
        left_layout.addWidget(name_label)
        left_layout.addWidget(path_edit)
        
        # 加载按钮
        add_btn = QtWidgets.QPushButton("加载...")
        add_btn.setIcon(QtGui.QIcon(f"{config.ICONS_PATH}/target.png"))
        add_btn.setToolTip("浏览...")
        add_btn.setFixedSize(100, 24)
        add_btn.setStyleSheet("""
            QPushButton {
                background: #232323;
                border: 2px solid #444444;  /* 调整边框颜色 */
                border-radius: 5px;  /* 减小圆角 */
                padding: 2px 4px;
                color: #CCCCCC;
                text-align: center;  /* 居中对齐 */
            }
            QPushButton:hover {
                background: #454545;
                border: 1px solid #555555;
            }
            QPushButton:pressed {
                background: #2A2A2A;
                border: 1px solid #666666;
            }
        """)
        
        # 添加到主布局
        layout.addWidget(left_container, stretch=1)
        layout.addWidget(add_btn)
        
        return item
        
    def _create_tool_button(self, text, icon_name, fallback_icon=None):
        """创建工具按钮"""
        btn = QtWidgets.QPushButton(text)
        
        # 尝试使用自定义图标，如果失败则使用Maya内置图标
        icon_path = f"{config.ICONS_PATH}/{icon_name}"
        print(f"尝试加载图标: {icon_path}")  # 添加调试输出
        
        if os.path.exists(icon_path):
            btn.setIcon(QtGui.QIcon(icon_path))
            print(f"成功加载自定义图标: {icon_path}")
        elif fallback_icon:
            btn.setIcon(QtGui.QIcon(f":{fallback_icon}"))
            print(f"使用Maya内置图标: {fallback_icon}")
        else:
            print(f"未能找到图标: {icon_path}")
        
        btn.setStyleSheet("""
            QPushButton {
                background: #3D3D3D;
                border: 1px solid #555555;
                border-radius: 2px;
                padding: 4px 8px;
                color: #CCCCCC;
                text-align: left;
                icon-size: 16px;
                min-height: 32px;  # 统一按钮高度
            }
            QPushButton:hover {
                background: #454545;
            }
            QPushButton:pressed {
                background: #2A2A2A;
            }
        """)
        return btn
        
    def _create_bottom_toolbar(self):
        """创建底部工具栏"""
        # === Widget ===
        widget = QtWidgets.QWidget()
        widget.setFixedHeight(180)  # 增加高度
        
        # === Main Layout ===
        layout = QtWidgets.QVBoxLayout(widget)
        layout.setContentsMargins(8, 8, 8, 8)  # 增加边距
        layout.setSpacing(8)
        
        # === 第一行工具栏 - 预设和LOD ===
        first_row = QtWidgets.QWidget()
        first_layout = QtWidgets.QHBoxLayout(first_row)
        first_layout.setContentsMargins(4, 0, 4, 0)
        first_layout.setSpacing(4)
        
        # 预设名称
        self.preset_label = QtWidgets.QLabel("预设名称:")
        self.preset_name_combo = QtWidgets.QComboBox()
        self.preset_name_combo.addItem("Meta-Human")
        self.preset_name_combo.setFixedWidth(150)
        self.preset_name_combo.setFixedHeight(32)  # 设置为与模型分离按钮相同的高度

        # 选择LOD
        self.lod_label = QtWidgets.QLabel("选择LOD:")
        self.lod_combo = QtWidgets.QComboBox()
        self.lod_combo.addItems(["全部"] + [f"LOD{i}" for i in range(8)])
        self.lod_combo.setFixedWidth(100)
        self.lod_combo.setFixedHeight(32)  # 设置为与模型分离按钮相同的高度
        
        # 创建LOD按钮
        self.create_lod_btn = QtWidgets.QPushButton()
        self.create_lod_btn.setIcon(QtGui.QIcon(f"{config.ICONS_PATH}/create_lod.png"))
        self.create_lod_btn.setText("创建LOD")
        self.create_lod_btn.setFixedHeight(32)  # 设置为与模型分离按钮相同的高度
        
        first_layout.addWidget(self.preset_label)
        first_layout.addWidget(self.preset_name_combo)
        first_layout.addStretch()
        first_layout.addWidget(self.lod_label)
        first_layout.addWidget(self.lod_combo)
        first_layout.addWidget(self.create_lod_btn)
        
        # === 功能按钮区域 ===
        buttons_widget = QtWidgets.QWidget()
        buttons_layout = QtWidgets.QVBoxLayout(buttons_widget)
        buttons_layout.setContentsMargins(4, 4, 4, 4)
        buttons_layout.setSpacing(8)
        
        # 创建按钮行
        row1 = QtWidgets.QWidget()
        row1_layout = QtWidgets.QHBoxLayout(row1)
        row1_layout.setContentsMargins(0, 0, 0, 0)
        row1_layout.setSpacing(8)
        
        row2 = QtWidgets.QWidget()
        row2_layout = QtWidgets.QHBoxLayout(row2)
        row2_layout.setContentsMargins(0, 0, 0, 0)
        row2_layout.setSpacing(8)
        
        row3 = QtWidgets.QWidget()
        row3_layout = QtWidgets.QHBoxLayout(row3)
        row3_layout.setContentsMargins(0, 0, 0, 0)
        row3_layout.setSpacing(8)
        
        # 创建按钮
        self.separate_btn = self._create_tool_button("模型分离", "separate.png", "polySplitVertex.png")
        self.face_accessory_btn = self._create_tool_button("生成面部配件", "supplement_meshes.png", "polyCreateFacet.png")
        self.fix_normal_btn = self._create_tool_button("修复法线", "repair_normals.png", "polyNormal.png")
        self.fix_vertex_order_btn = self._create_tool_button("修复点序", "repair_vertex_order.png", "polyNormalPerVertex.png")
        self.fix_seam_btn = self._create_tool_button("修复接缝", "fix_seam.png", "polyChipOff.png")
        
        # 设置按钮固定宽度
        button_width = (widget.width() - 24) // 2  # 24是左右边距和按钮间距(8)的总和
        for btn in [self.separate_btn, self.face_accessory_btn, 
                    self.fix_normal_btn, self.fix_vertex_order_btn, 
                    self.fix_seam_btn]:
            btn.setFixedWidth(button_width)
        
        # 添加按钮到行
        row1_layout.addStretch()
        row1_layout.addWidget(self.separate_btn)
        row1_layout.addWidget(self.face_accessory_btn)
        row1_layout.addStretch()
        
        row2_layout.addStretch()
        row2_layout.addWidget(self.fix_normal_btn)
        row2_layout.addWidget(self.fix_vertex_order_btn)
        row2_layout.addStretch()
        
        # 修复接缝按钮不居中
        row3_layout.addWidget(self.fix_seam_btn)
        row3_layout.addStretch()
        
        # 添加行到布局
        buttons_layout.addWidget(row1)
        buttons_layout.addWidget(row2)
        buttons_layout.addWidget(row3)
        
        # === 添加到主布局 ===
        layout.addWidget(first_row)
        layout.addWidget(buttons_widget)
        
        # 添加窗口大小变化事件处理
        widget.resizeEvent = lambda event: self._adjust_button_widths(event, [
            self.separate_btn, self.face_accessory_btn,
            self.fix_normal_btn, self.fix_vertex_order_btn,
            self.fix_seam_btn
        ])
        
        return widget
        
    def _adjust_button_widths(self, event, buttons):
        """调整按钮宽度以适应窗口大小"""
        width = event.size().width()
        button_width = (width - 24) // 2  # 24是左右边距和按钮间距(8)的总和
        for btn in buttons:
            btn.setFixedWidth(button_width)
        
    def _setup_style(self):
        """设置样式"""
        # 工具栏样式
        self.toolbar.setStyleSheet("""
            QWidget {
                background: #2D2D2D;
            }
            QComboBox {
                background: #3D3D3D;
                border: 1px solid #555555;
                border-radius: 2px;
                padding: 4px;
                color: #CCCCCC;
            }
        """)
        
        # 标签页样式
        self.lod_tabs.setStyleSheet("""
            QTabWidget::pane {
                border: none;
                background: #2D2D2D;
            }
            QTabBar::tab {
                background: #3D3D3D;
                border: none;
                min-width: 40px;  # 减小最小宽度
                padding: 4px 8px;  # 减小内边距
                color: #CCCCCC;
                margin-right: 1px;
            }
            QTabBar::tab:selected {
                background: #4D4D4D;
                color: #FFFFFF;
            }
            QTabBar::tab:hover:!selected {
                background: #454545;
            }
            QTabBar::tab:first {
                margin-left: 0px;
            }
        """)
        
        # 应用样式到下拉框
        for combo in [self.preset_combo, self.preset_name_combo, self.lod_combo]:
            combo.setStyleSheet("""
                QComboBox {
                    background: #3D3D3D;
                    border: 1px solid #555555;
                    border-radius: 2px;
                    padding: 4px;
                    color: #CCCCCC;
                }
            """)
        
        # 应用样式到标签
        for label in [self.preset_label, self.lod_label]:
            label.setStyleSheet("color: #CCCCCC;")
        
    def _create_connections(self):
        """创建信号连接"""
        # 顶部工具栏
        self.preset_combo.currentIndexChanged.connect(self._on_preset_changed)
        
        # 底部工具栏
        self.create_lod_btn.clicked.connect(self._on_create_lod)
        self.separate_btn.clicked.connect(self._on_separate)
        self.face_accessory_btn.clicked.connect(self._on_face_accessory)
        self.fix_normal_btn.clicked.connect(self._on_fix_normal)
        self.fix_vertex_order_btn.clicked.connect(self._on_fix_vertex_order)
        self.fix_seam_btn.clicked.connect(self._on_fix_seam)
        
    # === Event Handlers ===
    def _on_preset_changed(self, index):
        """预设改变"""
        # TODO: 实现预设切换
        pass
        
    def _on_create_lod(self):
        """生成当前LOD"""
        # TODO: 实现生成当前LOD
        pass
        
    def _on_separate(self):
        """模型分离"""
        # TODO: 实现模型分离
        pass
        
    def _on_face_accessory(self):
        """生成面部配件"""
        # TODO: 实现生成面部配件
        pass
        
    def _on_fix_normal(self):
        """修复法线"""
        # TODO: 实现修复法线
        pass
        
    def _on_fix_vertex_order(self):
        """修复点序"""
        # TODO: 实现修复点序
        pass
        
    def _on_fix_seam(self):
        """修复接缝"""
        # TODO: 实现修复接缝
        pass

    def _on_load_meshes(self, lod_index):
        """自动加载模型"""
        # TODO: 实现自动加载模型
        print(f"加载 LOD{lod_index} 的模型")
        pass

    def _on_standardize_names(self, lod_index):
        """标准化命名"""
        # TODO: 实现标准化命名
        print(f"标准化 LOD{lod_index} 的命名")
        pass

    def _on_auto_group(self, lod_index):
        """自动分组"""
        # TODO: 实现自动分组
        print(f"自动分组 LOD{lod_index}")
        pass

if __name__ == "__main__":
    pass