WQ_GUI/src/gui/water_quality_gui_v2.py

#!/usr/bin/env python
# -*- coding: utf-8 -*-
"""
水质参数反演分析系统 - 图形用户界面（重构版：纯壳模式）

WaterQualityGUI 只负责窗口框架（标题栏、菜单栏、状态栏、QTabWidget），
所有业务逻辑委托给独立的 Manager 类。

已实现的 Manager：
- PanelFactory           → 面板懒加载与生命周期
- PipelineExecutor       → Pipeline 执行/停止/回调（通过 EventBus 发布状态）
- WorkspaceInitializer   → 工作目录选择 + 自动回填（通过 EventBus 广播）
- LogManager             → 日志区 + 进度条（内部订阅 LogMessage/ProgressUpdate）
- ConfigManager          → 配置读写（new/load/save/get_current_config）
- DialogService          → 纯展示类弹窗（Pipeline状态/关于/AI设置）
- TrainingModeManager    → 训练模式切换（发布 TrainingModeChanged 事件）
"""

import os
import sys

# ═══════════════════════════════════════════════════════════════
# 动态推断当前 Conda 环境下的 GDAL/PROJ 数据路径
# 必须在 import gdal / import rasterio 等任何第三方库之前执行
# ═══════════════════════════════════════════════════════════════

def _find_and_set_gdal_env():
    """动态推断并强设 PROJ_LIB 和 GDAL_DATA 环境变量。

    解决"C:\\ITRES\\ATK\\app\\GDAL\\projlib"等旧系统 PROJ 安装的干扰：
    强制指向与当前 GDAL 版本匹配的 proj.db（通常在同 Conda 环境的
    Library/share/proj 下），而非系统路径中的过时版本。

    搜索策略（按优先级）：
      1. CONDA_PREFIX + sys.prefix 的 Library/share/ 子目录
      2. 搜索 sys.path 找到 osgeo 模块所在位置，回推 Library 路径
      3. CONDA_ROOT / base 环境的 Library 路径
      4. PATH 中推断的 conda 安装路径
      5. 已知的硬编码回退路径
    """
    # ── 辅助函数 ──
    def _check_proj_db_version(db_path):
        """读取 proj.db 的 SQLite 头，返回主版本号。失败返回 -1。"""
        try:
            with open(db_path, "rb") as f:
                header = f.read(100)
            # SQLite 3 文件头: "SQLite format 3\0"，之后是页大小等
            # DATABASE.LAYOUT.VERSION 在 offset 60 附近的 schema 中，
            # 但最简单的是读整个头中 "major" / "minor" 文本
            if b"SQLite format 3" not in header:
                return -2
            # PROJ 在 proj.db 的 metadata 表存储版本，我们直接看文件大小
            # 粗略判定：< 2MB → v2-v4, 2~6MB → v5-v6, > 6MB → v7+
            size_mb = os.path.getsize(db_path) / (1024 * 1024)
            return 6 if size_mb > 3.0 else 2  # v6+ 的 proj.db 通常 > 3MB
        except Exception:
            return -1

    def _find_proj_in_prefix(prefix):
        """在指定前缀下递归搜索 Library/share/proj/proj.db"""
        candidates = []
        for root, dirs, files in os.walk(prefix):
            # 限制深度避免全盘扫描
            depth = root.replace(prefix, "").count(os.sep)
            if depth > 6:
                dirs.clear()
                continue
            if "proj.db" in files:
                db_path = os.path.join(root, "proj.db")
                ver = _check_proj_db_version(db_path)
                if ver >= 6:
                    candidates.append((ver, root))
            # 跳过明显的非目标目录
            dirs[:] = [d for d in dirs if d not in (".git", "__pycache__", "node_modules")]
        if candidates:
            candidates.sort(key=lambda x: -x[0])  # 最新版本优先
            return candidates[0][1]
        return None

    def _find_gdal_in_prefix(prefix):
        """在指定前缀下查找 GDAL data 目录（Library/share/gdal 或 osgeo/data/gdal）"""
        # Conda 路径：Library/share/gdal
        # pip wheel / PyInstaller 打包后：osgeo/data/gdal
        for sub in ("Library/share/gdal", "share/gdal",
                     "Library\\share\\gdal", "share\\gdal",
                     "osgeo/data/gdal", "osgeo\\data\\gdal"):
            path = os.path.join(prefix, sub)
            if os.path.isdir(path):
                for marker in ("gdalvrt.xsd", "pcs.csv", "gcs.csv"):
                    if os.path.isfile(os.path.join(path, marker)):
                        return path
        return None

    # ── 构建搜索前缀 ──
    prefixes = []

    # 1) CONDA_PREFIX + sys.prefix（最优先）
    for src in (os.environ.get("CONDA_PREFIX", ""), sys.prefix):
        if src and src not in prefixes:
            prefixes.append(src)

    # 2) 从 Python 可执行文件路径回推（最可靠：python.exe 就在 {prefix}/ 下）
    try:
        py_exe = sys.executable
        py_prefix = os.path.dirname(py_exe)  # python.exe 所在目录
        if os.path.basename(py_prefix).lower() == "scripts":
            # Windows venv: {prefix}/Scripts/python.exe → 前缀是父目录
            exe_prefix = os.path.dirname(py_prefix)
        else:
            exe_prefix = py_prefix
        if exe_prefix and exe_prefix not in prefixes:
            prefixes.insert(0, exe_prefix)  # 插到最前面，最高优先级
    except Exception:
        pass

    # 2b) PyInstaller 打包后的解包目录 (_MEIPASS)
    #      sys.prefix 在 PyInstaller 中已指向 _MEIPASS，但显式加入确保不被遗漏
    _meipass = getattr(sys, '_MEIPASS', None)
    if _meipass and _meipass not in prefixes:
        prefixes.insert(0, _meipass)

    # 3) 从 sys.path 中 site-packages 位置回推所有可能的 conda/env 前缀
    try:
        for sp in sys.path:
            if not sp or sp in prefixes:
                continue
            norm = os.path.normpath(sp)
            parts = norm.split(os.sep)
            # 检查 sp 是否在 site-packages 下 → 回推到 {prefix}
            for marker in ("site-packages", "Lib"):
                if marker in parts:
                    idx = parts.index(marker)
                    possible = os.sep.join(parts[:idx])
                    if os.path.isdir(possible) and possible not in prefixes:
                        prefixes.append(possible)
                    break
    except Exception:
        pass

    # 3) CONDA_ROOT / base 环境
    for key in ("CONDA_ROOT", "MAMBA_ROOT_PREFIX"):
        val = os.environ.get(key, "")
        if val and val not in prefixes:
            prefixes.append(val)

    # 4) 从 PATH 推断
    for d in os.environ.get("PATH", "").split(os.pathsep):
        if not d or d in prefixes:
            continue
        lower = d.lower()
        if any(kw in lower for kw in ("anaconda", "miniconda", "anconda")):
            # 找到 conda 根: 去掉 /Scripts 或 /condabin
            if os.path.basename(d).lower() in ("scripts", "condabin", "bin"):
                root = os.path.dirname(d)
            else:
                root = d
            if root and root not in prefixes:
                prefixes.append(root)

    # 5) 已知硬编码路径
    for p in [
        r"D:\111\changyongruanjian\anconda\envs\WQ_GUI",
        r"D:\111\changyongruanjian\anconda",
        r"C:\ProgramData\anaconda3",
        r"C:\ProgramData\miniconda3",
    ]:
        if os.path.isdir(p) and p not in prefixes:
            prefixes.append(p)

    # ── 额外：扫描 conda 根目录下的 envs/*/Library/share/proj ──
    _extra_prefixes = []
    for prefix in list(prefixes):
        envs_dir = os.path.join(prefix, "envs")
        if os.path.isdir(envs_dir):
            try:
                for entry in os.listdir(envs_dir):
                    env_path = os.path.join(envs_dir, entry)
                    if os.path.isdir(env_path) and env_path not in prefixes:
                        _extra_prefixes.append(env_path)
            except Exception:
                pass
    prefixes.extend(_extra_prefixes)

    # 6) pip wheel GDAL / Fiona: {site-packages}/*/proj.db 直接搜索
    #    pip 安装的 GDAL ≥3.5 把 proj.db 放在 site-packages/osgeo/data/proj/
    #    Fiona 打包的旧版 proj.db 在 site-packages/fiona/proj_data/
    #    优先使用 GDAL 的 v6+，忽略 Fiona 的 v2
    _site_proj = None   # site-packages 中找到的 v6+ proj.db
    _site_gdal = None
    _fiona_v2_path = None  # 记录 Fiona 的旧版供警告
    try:
        import site as _site
        for _sp in _site.getsitepackages():
            # GDAL wheel: osgeo/data/proj/proj.db
            for _sub in ("osgeo/data/proj", "osgeo\\data\\proj",
                         "osgeo/proj_data", "osgeo\\proj_data"):
                _db = os.path.join(_sp, _sub, "proj.db")
                if os.path.isfile(_db):
                    _ver = _check_proj_db_version(_db)
                    if _ver >= 6 and not _site_proj:
                        _site_proj = os.path.join(_sp, _sub)
                        _gd = os.path.join(_sp, "osgeo", "data", "gdal")
                        if os.path.isdir(_gd):
                            _site_gdal = _gd
            # Fiona 打包的旧版 → 记录供警告
            for _sub in ("fiona/proj_data", "fiona\\proj_data"):
                _fdb = os.path.join(_sp, _sub, "proj.db")
                if os.path.isfile(_fdb) and not _fiona_v2_path:
                    _fiona_v2_path = _fdb
    except Exception:
        pass

    # 直接使用 site-packages 中找到的 v6+ proj.db（优先级最高：
    # 它和当前 Python 进程中的 GDAL/PROJ 库版本匹配）
    if _site_proj:
        proj_lib = _site_proj
        gdal_data = _site_gdal if _site_gdal else None
    else:
        proj_lib = None
        gdal_data = None

    # site-packages 没找到 → 回退到前缀搜索
    if not proj_lib:
        for prefix in prefixes:
            if not proj_lib:
                for sub in ("Library/share/proj", "share/proj",
                            "Library\\share\\proj", "share\\proj"):
                    db_path = os.path.join(prefix, sub, "proj.db")
                    if os.path.isfile(db_path) and _check_proj_db_version(db_path) >= 6:
                        proj_lib = os.path.join(prefix, sub)
                        break
                if not proj_lib and (
                    os.path.basename(prefix) not in ("", "share", "bin", "Scripts")
                ):
                    proj_lib = _find_proj_in_prefix(prefix)
            if not gdal_data:
                gdal_data = _find_gdal_in_prefix(prefix)
            if proj_lib and gdal_data:
                break

    # ── 应用环境变量 ──
    if proj_lib:
        os.environ["PROJ_LIB"] = proj_lib
        # PROJ_DATA: Fiona / Rasterio / GDAL ≥3.5 / PROJ ≥8 优先读取此变量
        # 不设置的话 Fiona 会使用自带的旧版 proj.db (VERSION.MINOR=2)，
        # 导致投影解析错误 → 矢量图层错位 → 水体被错误擦除 → 有效像元为 0
        os.environ["PROJ_DATA"] = proj_lib
        print(f"[ENV] PROJ_LIB  -> {proj_lib}")
        print(f"[ENV] PROJ_DATA -> {proj_lib}")
    else:
        print("[ENV] [WARN] 未找到兼容的 proj.db (需要 PROJ v6+)，PROJ_LIB/PROJ_DATA 保持系统默认")
        print(f"[ENV]    (已搜索 {len(prefixes)} 个前缀: {[os.path.basename(p) for p in prefixes[:5]]}...)")
        print("[ENV]    如果 step11 地图渲染报 PROJ 版本错误，")
        print("[ENV]    请手动设置: set PROJ_LIB=<conda环境>\\Library\\share\\proj")
        print("[ENV]             set PROJ_DATA=<同上>")

    if gdal_data:
        os.environ["GDAL_DATA"] = gdal_data
        print(f"[ENV] GDAL_DATA -> {gdal_data}")
    else:
        print("[ENV] [WARN] 未找到 GDAL data 目录，GDAL_DATA 保持系统默认")
        print(f"[ENV]    (已搜索 {len(prefixes)} 个前缀)")

    # ── 屏蔽 Fiona 内部旧版 PROJ 路径 ──
    # Fiona wheels 捆绑了古老的 proj.db (VERSION.MINOR=2)，
    # 即使设置了 PROJ_DATA 仍然可能被某些旧版 Fiona 忽略。
    if proj_lib:
        os.environ["PROJ_NETWORK"] = "OFF"  # 禁用 PROJ 网络下载(避免意外行为)
    if "PROJ_DATA" in os.environ:
        print("[ENV] 已屏蔽 Fiona 内部旧版 PROJ 数据库，全进程统一使用上述 proj.db")
    if _fiona_v2_path:
        print(f"[ENV] [WARN] 检测到 Fiona 自带的旧版 proj.db (v2) 位于:")
        print(f"    {_fiona_v2_path}")
        print(f"    PROJ_DATA 已指向 v6+ 版本，此旧版将被忽略")
        if proj_lib:
            print(f"    确认全进程 PROJ 来源: {proj_lib}")

_find_and_set_gdal_env()

import ctypes
import traceback
import multiprocessing
from datetime import datetime

from PyQt5.QtWidgets import (
    QApplication, QMainWindow, QWidget, QVBoxLayout, QHBoxLayout,
    QPushButton, QLabel, QTabWidget, QToolBar, QSizePolicy,
    QListWidget, QListWidgetItem, QGroupBox,
    QTextEdit, QProgressBar, QMessageBox, QFileDialog,
    QSpinBox, QDoubleSpinBox, QComboBox,
)
from PyQt5.QtCore import Qt, QTimer, QSize
from PyQt5.QtGui import QIcon, QFont, QPixmap, QColor, QTextCursor

if multiprocessing.current_process().name == 'MainProcess':
    if not QApplication.instance():
        try:
            QApplication.setAttribute(Qt.AA_EnableHighDpiScaling, True)
            QApplication.setAttribute(Qt.AA_UseHighDpiPixmaps, True)
        except Exception:
            pass
        _global_app = QApplication(sys.argv)


def get_resource_path(relative_path: str) -> str:
    if hasattr(sys, '_MEIPASS'):
        return os.path.join(sys._MEIPASS, relative_path)
    return os.path.abspath(
        os.path.join(os.path.dirname(os.path.dirname(os.path.dirname(__file__))), relative_path)
    )


def global_exception_handler(exc_type, exc_value, exc_traceback):
    err_lines = traceback.format_exception(exc_type, exc_value, exc_traceback)
    err_msg = "".join(err_lines)
    dump_path = os.path.join(os.path.dirname(os.path.abspath(__file__)), "crash_dump.txt")
    try:
        with open(dump_path, "a", encoding="utf-8") as f:
            f.write(f"\n{'='*60}\n[{datetime.now().strftime('%Y-%m-%d %H:%M:%S')}]\n")
            f.write(err_msg)
    except Exception:
        pass
    try:
        QMessageBox.critical(None, "程序崩溃",
                             f"错误类型: {exc_type.__name__}\n错误信息: {exc_value}\n详细信息已写入: {dump_path}")
    except Exception:
        pass


sys.excepthook = global_exception_handler


class WaterQualityGUI(QMainWindow):
    """水质参数反演分析系统主窗口 —— 纯壳模式。

    职责边界：
    - 窗口框架（标题栏、菜单栏、状态栏、导航栏）
    - QTabWidget 托管（通过 PanelFactory 懒加载）
    - 日志区 + 进度条（UI 控件归 shell，内容由 EventBus 驱动）
    - 各 Manager 的创建与 EventBus 连线
    """

    def __init__(self):
        my_appid = u'mycompany.megacube.waterquality.v1'
        ctypes.windll.shell32.SetCurrentProcessExplicitAppUserModelID(my_appid)
        super().__init__()

        icon_path = get_resource_path("data/icons-1/app.ico")
        self.setWindowIcon(QIcon(icon_path))

        # 第一步：创建各 Manager（纯连线，不执行业务）
        self._init_managers()

        # 第二步：构建窗口壳
        self._init_shell()

        # 第三步：订阅 EventBus 事件 → 驱动 UI 更新
        self._wire_event_bus()

        # 第四步：应用样式 + 禁用滚轮
        self._apply_stylesheet()
        self._disable_wheel_for_all_spinboxes()

        # 第五步：默认选中第一个步骤（延迟执行，确保导航列表和 Tab 均已就位）

        QTimer.singleShot(120, self._select_first_nav_item)

        # 第六步：延迟启动工作目录选择
        QTimer.singleShot(200, self._workspace_initializer.run)

    # ================================================================
    # Manager 初始化
    # ================================================================

    def _init_managers(self):
        from src.gui.core.panel_factory import PanelFactory
        from src.gui.core.panel_registry import PANEL_REGISTRY
        from src.gui.core.workspace_initializer import WorkspaceInitializer
        from src.gui.core.pipeline_executor import PipelineExecutor
        from src.gui.core.log_manager import LogManager
        from src.gui.core.config_manager import ConfigManager
        from src.gui.core.dialog_service import DialogService
        from src.gui.core.training_mode_manager import TrainingModeManager
        from src.gui.core.event_bus import global_event_bus

        self._panel_factory = PanelFactory(
            registry=PANEL_REGISTRY,
            main_window=self,
            preload_window=1,
        )

        self._workspace_initializer = WorkspaceInitializer(
            panel_factory=self._panel_factory,
            parent=self,
        )

        self._pipeline_executor = PipelineExecutor(
            panel_factory=self._panel_factory,
            workspace_initializer=self._workspace_initializer,
            parent=self,
        )

        self._log_manager = LogManager(parent=self)

        self._config_manager = ConfigManager(
            panel_factory=self._panel_factory,
            parent=self,
        )

        self._dialog_service = DialogService(parent=self)

        self._training_mode_manager = TrainingModeManager(parent=self)

        self._event_bus = global_event_bus

    # ================================================================
    # 窗口壳构建
    # ================================================================

    def _init_shell(self):
        self.setWindowTitle("MegaCube-Water Quality  V1.2.1")

        screen_geometry = QApplication.primaryScreen().availableGeometry()
        screen_width = screen_geometry.width()
        screen_height = screen_geometry.height()
        self.resize(1200, screen_height)
        self.move((screen_width - 1200) // 2, 0)
        self.setMinimumSize(600, 400)

        self._create_title_bar()
        self._create_banner()
        self._create_central_layout()
        self.statusBar().showMessage("就绪")

    def _create_title_bar(self):
        title_widget = QWidget()
        title_layout = QHBoxLayout()
        title_layout.setContentsMargins(8, 4, 8, 4)
        title_layout.setSpacing(0)

        logo_label = QLabel()
        logo_label.setFixedSize(180, 48)
        logo_label.setAlignment(Qt.AlignCenter)
        logo_label.setStyleSheet(
            "background-color: #f8f9fa;"
            "border-top-left-radius: 4px; border-bottom-left-radius: 4px;"
        )
        logo_path = get_resource_path("data/icons/logo.png")
        logo_pixmap = QPixmap(logo_path)
        if not logo_pixmap.isNull():
            logo_label.setPixmap(logo_pixmap.scaledToHeight(38, Qt.SmoothTransformation))
        else:
            logo_label.setText("Logo")
        title_layout.addWidget(logo_label)

        menubar = self.menuBar()
        menubar.setStyleSheet("""
            QMenuBar { background-color: #f8f9fa; border: none; padding: 4px 8px; }
            QMenuBar::item { padding: 6px 12px; font-size: 13px; }
            QMenuBar::item:selected { background-color: #e6f0ff; border-radius: 3px; }
        """)
        self._build_menus(menubar)
        title_layout.addWidget(menubar)

        title_widget.setLayout(title_layout)
        title_widget.setStyleSheet(
            "background-color: #f8f9fa; border-bottom: 1px solid #d0d0d0;"
        )
        self.setMenuWidget(title_widget)

    def _build_menus(self, menubar):
        file_menu = menubar.addMenu("文件")
        file_menu.addAction("新建配置").triggered.connect(self._on_new_config)
        file_menu.addAction("打开配置").triggered.connect(self._on_load_config)
        file_menu.addAction("保存配置").triggered.connect(self._on_save_config)
        file_menu.addSeparator()
        file_menu.addAction("退出").triggered.connect(self.close)

        tools_menu = menubar.addMenu("工具")
        tools_menu.addAction("设置工作目录").triggered.connect(
            self._workspace_initializer.set_work_directory
        )
        tools_menu.addAction("打开工作目录").triggered.connect(
            self._workspace_initializer.open_work_directory
        )
        tools_menu.addSeparator()
        tools_menu.addAction("AI 引擎配置...").triggered.connect(self._on_ai_settings)
        tools_menu.addSeparator()
        tools_menu.addAction("自动填充所有输入路径").triggered.connect(
            self._workspace_initializer.auto_populate_all
        )

        self._training_mode_action = tools_menu.addAction("有训练数据模式")
        self._training_mode_action.setCheckable(True)
        self._training_mode_action.setChecked(True)
        self._training_mode_action.triggered.connect(self._on_toggle_training_mode)

        help_menu = menubar.addMenu("帮助")
        help_menu.addAction("检查Pipeline状态").triggered.connect(self._on_show_pipeline_status)
        help_menu.addSeparator()
        help_menu.addAction("关于").triggered.connect(self._on_show_about)

    def _create_banner(self):
        banner_widget = QWidget()
        banner_layout = QHBoxLayout()
        banner_layout.setContentsMargins(0, 0, 0, 0)
        banner_layout.setSpacing(0)

        self._banner_label = QLabel()
        self._banner_label.setMinimumHeight(140)
        self._banner_label.setSizePolicy(QSizePolicy.Expanding, QSizePolicy.Fixed)
        self._banner_label.setScaledContents(False)

        banner_path = get_resource_path("data/icons/Mega Water 1.0.jpg")
        self._banner_pixmap = QPixmap(banner_path)
        if not self._banner_pixmap.isNull():
            QTimer.singleShot(50, self._update_banner_image)

        banner_layout.addWidget(self._banner_label)

        self._banner_title_label = QLabel("MegaCube-Water Quality  V1.2.1", self._banner_label)
        # 现代化字体设计：去掉老旧的衬线体，换用带字间距的粗体无衬线字体，增加高级感
        self._banner_title_label.setStyleSheet("""
            QLabel {
                background: transparent; 
                color: #FFFFFF; 
                font-size: 42px;
                font-weight: bold;
                font-family: "Microsoft YaHei UI", "Segoe UI", sans-serif;
                letter-spacing: 3px;
            }
        """)
        self._banner_title_label.setAttribute(Qt.WA_TransparentForMouseEvents)
        self._banner_title_label.show()
        self._banner_title_label.raise_()

        banner_widget.setLayout(banner_layout)

        banner_toolbar = QToolBar()
        banner_toolbar.setMovable(False)
        banner_toolbar.setFloatable(False)
        banner_toolbar.addWidget(banner_widget)
        banner_toolbar.setStyleSheet(
            "QToolBar { background: white; border: none; padding: 0px; margin: 0px; }"
        )
        self.addToolBar(Qt.TopToolBarArea, banner_toolbar)

    def _create_central_layout(self):
        from src.gui.styles import ModernStylesheet
        central_widget = QWidget()
        main_layout = QHBoxLayout()
        main_layout.setContentsMargins(0, 0, 0, 0)
        main_layout.setSpacing(0)

        main_layout.addWidget(self._create_navigation(), 1)

        right_widget = QWidget()
        right_layout = QVBoxLayout()
        right_layout.setContentsMargins(15, 15, 15, 15)
        right_layout.setSpacing(10)

        self._tab_widget = self._panel_factory.create_tab_widget(icons_dir="data/icons")
        self._tab_widget.tabBar().setVisible(False)
        right_layout.addWidget(self._tab_widget, 3)

        # 上一步 / 下一步 导航按钮
        nav_btn_layout = QHBoxLayout()
        nav_btn_layout.setSpacing(12)
        
        self._prev_btn = QPushButton(" 上一步 ")
        self._prev_btn.setMinimumHeight(36)
        self._prev_btn.setMinimumWidth(100)
        # 上一步是次要操作，用 normal 样式
        self._prev_btn.setStyleSheet(ModernStylesheet.get_button_stylesheet('normal'))
        self._prev_btn.clicked.connect(self._on_prev_clicked)
        nav_btn_layout.addWidget(self._prev_btn)

        self._next_btn = QPushButton(" 下一步 ")
        self._next_btn.setMinimumHeight(36)
        self._next_btn.setMinimumWidth(100)
        # 下一步是主要操作，用 primary (主题蓝) 样式
        self._next_btn.setStyleSheet(ModernStylesheet.get_button_stylesheet('primary'))
        self._next_btn.clicked.connect(self._on_next_clicked)
        nav_btn_layout.addWidget(self._next_btn)

        nav_btn_layout.addStretch()
        right_layout.addLayout(nav_btn_layout)

        right_layout.addWidget(self._log_manager.create_log_panel(), 1)

        right_widget.setLayout(right_layout)
        main_layout.addWidget(right_widget, 4)

        central_widget.setLayout(main_layout)
        self.setCentralWidget(central_widget)

    def _create_navigation(self):
        from src.gui.core.panel_registry import build_stage_groups
        from src.gui.styles import ModernStylesheet

        nav_widget = QWidget()
        nav_layout = QVBoxLayout()
        nav_layout.setContentsMargins(0, 15, 0, 15) # 去掉左右边距，让列表通栏
        nav_layout.setSpacing(10)

        title = QLabel("流程导航")
        title.setFont(QFont("Microsoft YaHei", 14, QFont.Bold))
        title.setAlignment(Qt.AlignCenter)
        title.setStyleSheet(f"color: {ModernStylesheet.COLORS['primary']}; padding: 10px;")
        nav_layout.addWidget(title)

        self._step_list = QListWidget()
        # 注入纯净的现代侧边栏 QSS
        self._step_list.setStyleSheet(f"""
            QListWidget {{
                background-color: {ModernStylesheet.COLORS['panel_bg']};
                border: none;
                outline: 0; /* 去掉点击时的虚线框 */
            }}
            QListWidget::item {{
                padding: 12px 16px;
                border-left: 4px solid transparent;
                color: {ModernStylesheet.COLORS['text_primary']};
            }}
            QListWidget::item:hover {{
                background-color: {ModernStylesheet.COLORS['hover']};
            }}
            QListWidget::item:selected {{
                background-color: {ModernStylesheet.COLORS['selected']};
                color: {ModernStylesheet.COLORS['primary']};
                font-weight: bold;
                border-left: 4px solid {ModernStylesheet.COLORS['primary']};
            }}
        """)

        process_stages = build_stage_groups()
        stage_names = list(process_stages.keys())

        for stage_idx, (stage_name, steps) in enumerate(process_stages.items()):
            # 分类头
            stage_item = QListWidgetItem(stage_name)
            stage_font = QFont("Microsoft YaHei", 11, QFont.Bold)
            stage_item.setFont(stage_font)
            stage_item.setForeground(QColor(ModernStylesheet.COLORS['primary']))
            stage_item.setBackground(QColor(ModernStylesheet.COLORS['main_bg'])) # 给头加个浅灰底色区隔
            stage_item.setFlags(stage_item.flags() & ~Qt.ItemIsSelectable & ~Qt.ItemIsEnabled)
            stage_item.setData(Qt.UserRole, "stage_header")
            self._step_list.addItem(stage_item)

            # 具体步骤
            for step_id, step_display in steps:
                item = QListWidgetItem(f"   {step_display}") # 增加缩进
                item.setData(Qt.UserRole, step_id)
                item.setFont(QFont("Microsoft YaHei", 10))
                self._step_list.addItem(item)

            # 分隔符 (不需要实体占用高度，缩小即可)
            if stage_idx < len(stage_names) - 1:
                sep = QListWidgetItem("")
                sep.setSizeHint(QSize(0, 10))
                sep.setFlags(sep.flags() & ~Qt.ItemIsSelectable & ~Qt.ItemIsEnabled)
                self._step_list.addItem(sep)

        self._step_list.currentRowChanged.connect(self._on_step_list_changed)
        nav_layout.addWidget(self._step_list)

        # 底部按钮区 (仅保留强制停止)
        btn_layout = QVBoxLayout()
        btn_layout.setContentsMargins(15, 0, 15, 0)
        
        self._stop_btn = QPushButton("⏹ 强制停止当前任务")
        self._stop_btn.setEnabled(False)
        self._stop_btn.setMinimumHeight(38)
        self._stop_btn.setStyleSheet(ModernStylesheet.get_button_stylesheet('danger'))
        self._stop_btn.clicked.connect(self._pipeline_executor.stop_pipeline)
        btn_layout.addWidget(self._stop_btn)

        nav_layout.addLayout(btn_layout)
        nav_widget.setLayout(nav_layout)
        nav_widget.setMaximumWidth(260)
        nav_widget.setStyleSheet(
            f"background-color: {ModernStylesheet.COLORS['panel_bg']};"
            f"border-right: 1px solid {ModernStylesheet.COLORS['border_light']};"
        )
        return nav_widget

    # ================================================================
    # EventBus 连线（UI 状态由事件驱动）
    # ================================================================

    def _wire_event_bus(self):
        self._event_bus.subscribe('PipelineStarted', self._on_pipeline_started)
        self._event_bus.subscribe('PipelineFinished', self._on_pipeline_finished)
        self._event_bus.subscribe('PipelineStopped', self._on_pipeline_stopped)
        self._event_bus.subscribe('NavigateToTab', self._on_navigate_to_tab)
        self._event_bus.subscribe('WorkspaceChanged', self._on_workspace_changed)

    def _on_pipeline_started(self, data):
        self._stop_btn.setEnabled(True)
        self._log_manager.progress_bar.setValue(0)

    def _on_pipeline_finished(self, data):
        self._stop_btn.setEnabled(False)
        success = data.get('success', False)
        message = data.get('message', '')
        if success:
            self._log_manager.progress_bar.setValue(100)
            QMessageBox.information(self, "完成", "流程执行成功！\n\n请查看工作目录中的结果文件。")
        else:
            QMessageBox.critical(self, "失败",
                f"流程执行失败:\n\n{message[:600]}"
                + ("\n...(已截断)" if len(message) > 600 else ""))

    def _on_pipeline_stopped(self, data):
        self._stop_btn.setEnabled(False)

    def _on_navigate_to_tab(self, data):
        tab_index = data.get('tab_index', 0)
        if 0 <= tab_index < self._tab_widget.count():
            self._tab_widget.setCurrentIndex(tab_index)

    def _on_workspace_changed(self, data):
        work_dir = data.get('work_dir', '')
        self.statusBar().showMessage(f"工作目录: {work_dir}")

        # 让当前激活的 Tab 立即基于新目录重算默认路径，覆盖掉旧值，绕过非空保护
        from src.gui.core.panel_registry import PANEL_REGISTRY
        active_idx = self._tab_widget.currentIndex()
        if 0 <= active_idx < len(PANEL_REGISTRY):
            active_step_id = PANEL_REGISTRY[active_idx]['step_id']
            panel = self._panel_factory.get_panel(active_step_id)
            if panel is not None and hasattr(panel, 'update_from_config'):
                try:
                    panel.update_from_config(
                        work_dir=self._workspace_initializer.work_dir,
                        pipeline=None
                    )
                except Exception:
                    pass

    # ================================================================
    # 导航 → Tab 单向路由（左侧 List 驱动右侧 Tab，Tab 头部已隐藏）
    # ================================================================

    def _select_first_nav_item(self):
        """默认选中左侧导航栏的第一个可导航步骤项（跳过阶段标题/分隔符）。"""
        for i in range(self._step_list.count()):
            item = self._step_list.item(i)
            if item and item.data(Qt.UserRole) not in (None, "stage_header"):
                self._step_list.setCurrentRow(i)
                return

    def _on_step_list_changed(self, index):
        if index < 0: return
        item = self._step_list.item(index)
        if not item: return
        item_data = item.data(Qt.UserRole)
        
        if item_data in (None, "stage_header"): return  # 跳过阶段标题
        
        from src.gui.core.panel_registry import get_tab_index, PANEL_REGISTRY
        tab_index = get_tab_index(item_data)
        if tab_index < 0: return
        
        try:
            # 1. 触发懒加载生成面板
            panel = self._panel_factory.get_panel(item_data)

            # ★ 2026-07-01：每次切页时刷新面板的自动路由
            #   面板首次加载时 _replay_state_to_panel 会调 update_from_config，
            #   但再次切回时 get_panel() 直接返回已有实例，不会重扫文件系统。
            #   此处显式调用确保 Step11 等面板始终基于最新磁盘状态做文件夹自动导入。
            if panel is not None and hasattr(panel, 'update_from_config'):
                try:
                    panel.update_from_config(
                        work_dir=self._workspace_initializer.work_dir,
                        pipeline=None,
                    )
                except Exception:
                    pass

            # 🚨 核心防卡死补丁：如果目标 Tab 被后台任务异常永久锁定，强制撬开！
            if not self._tab_widget.isTabEnabled(tab_index):
                self._log_manager.info(f"检测到 {item_data} 处于异常锁定状态，已执行强制解锁。")
                self._tab_widget.setTabEnabled(tab_index, True)
                QMessageBox.warning(
                    self, "页面已解锁",
                    f"步骤「{item_data}」之前被异常锁定，已自动强制解锁。\n"
                    "如果当前有流程正在运行，请勿修改此页面的参数。"
                )

            # 【防御】：用已加载 panel 实例反查真实 Tab 索引，防止索引错位
            try:
                for i in range(self._tab_widget.count()):
                    scroll_area = self._tab_widget.widget(i)
                    if scroll_area and hasattr(scroll_area, 'widget'):
                        if scroll_area.widget() == panel:
                            tab_index = i
                            break
            except Exception as e:
                self._log_manager.error(f"页面索引校验失败: {str(e)}")
                return

            # 2. 强制使用注册表的固定索引进行跳转
            self._tab_widget.setCurrentIndex(tab_index)

            # 【新增修复】：每次切页时，强制重播所有面板的输入值！
            # 原理：打破 preload_window 造成的时序差，确保目标页面能拿到源页面最新填写的值
            if hasattr(self, '_panel_factory'):
                self._panel_factory.replay_live_panel_inputs()

            # 3. 防撕裂回弹机制：如果由于某种原因没跳过去，把左边的蓝条强行拽回当前真实页面
            if self._tab_widget.currentIndex() != tab_index:
                self._step_list.blockSignals(True)
                current_step_id = PANEL_REGISTRY[self._tab_widget.currentIndex()]['step_id']
                for i in range(self._step_list.count()):
                    list_item = self._step_list.item(i)
                    if list_item and list_item.data(Qt.UserRole) == current_step_id:
                        self._step_list.setCurrentRow(i)
                        break
                self._step_list.blockSignals(False)
                
        except Exception as e:
            self._log_manager.error(f"页面跳转失败: {str(e)}")

    def _find_prev_step_row(self, current_row):
        """从 current_row 向上遍历，跳过 stage_header 和空分隔符，返回上一个有效 step 的行号。"""
        for i in range(current_row - 1, -1, -1):
            item = self._step_list.item(i)
            if not item:
                continue
            data = item.data(Qt.UserRole)
            if data and data != "stage_header":
                return i
        return None

    def _find_next_step_row(self, current_row):
        """从 current_row 向下遍历，跳过 stage_header 和空分隔符，返回下一个有效 step 的行号。"""
        for i in range(current_row + 1, self._step_list.count()):
            item = self._step_list.item(i)
            if not item:
                continue
            data = item.data(Qt.UserRole)
            if data and data != "stage_header":
                return i
        return None

    def _on_prev_clicked(self):
        """上一步按钮：跳转到上一个有效步骤。"""
        row = self._find_prev_step_row(self._step_list.currentRow())
        if row is not None:
            self._step_list.setCurrentRow(row)

    def _on_next_clicked(self):
        """下一步按钮：跳转到下一个有效步骤。"""
        row = self._find_next_step_row(self._step_list.currentRow())
        if row is not None:
            self._step_list.setCurrentRow(row)

    # ================================================================
    # 横幅自适应
    # ================================================================

    def _update_banner_image(self):
        if not hasattr(self, '_banner_pixmap') or self._banner_pixmap.isNull():
            return
        TARGET_HEIGHT = 140
        target_width = self.width()
        orig_w = self._banner_pixmap.width()
        orig_h = self._banner_pixmap.height()
        scale_factor = max(target_width / orig_w, TARGET_HEIGHT / orig_h)
        new_w = int(orig_w * scale_factor)
        new_h = int(orig_h * scale_factor)
        scaled = self._banner_pixmap.scaled(new_w, new_h, Qt.IgnoreAspectRatio, Qt.SmoothTransformation)
        crop_x = (new_w - target_width) // 2
        crop_y = (new_h - TARGET_HEIGHT) // 2
        final = scaled.copy(crop_x, crop_y, target_width, TARGET_HEIGHT)
        self._banner_label.setFixedHeight(TARGET_HEIGHT)
        self._banner_label.setFixedWidth(target_width)
        self._banner_label.setPixmap(final)
        if hasattr(self, '_banner_title_label'):
            title_x = 160
            title_y = max(0, (TARGET_HEIGHT - 60) // 2)
            self._banner_title_label.move(title_x, title_y)
            self._banner_title_label.resize(target_width - title_x - 20, 60)

    def resizeEvent(self, event):
        super().resizeEvent(event)
        self._update_banner_image()

    # ================================================================
    # 样式与 UX
    # ================================================================

    def _apply_stylesheet(self):
        from src.gui.styles import ModernStylesheet
        self.setStyleSheet(ModernStylesheet.get_main_stylesheet())

    def _disable_wheel_for_all_spinboxes(self):
        for sb in self.findChildren(QSpinBox):
            sb.setFocusPolicy(Qt.StrongFocus)
            sb.wheelEvent = lambda e, s=sb: None
        for sb in self.findChildren(QDoubleSpinBox):
            sb.setFocusPolicy(Qt.StrongFocus)
            sb.wheelEvent = lambda e, s=sb: None
        for cb in self.findChildren(QComboBox):
            cb.setFocusPolicy(Qt.StrongFocus)
            cb.wheelEvent = lambda e, c=cb: None

    # ================================================================
    # 菜单回调（全部委托给对应 Manager）
    # ================================================================

    def _on_new_config(self):
        self._config_manager.new_config()

    def _on_load_config(self):
        self._config_manager.load_config()

    def _on_save_config(self):
        self._config_manager.save_config()

    def _on_ai_settings(self):
        self._dialog_service.show_ai_settings()

    def _on_toggle_training_mode(self, checked):
        self._training_mode_manager.toggle(checked)
        self._training_mode_action.setText(
            self._training_mode_manager.get_action_text(checked)
        )

    def _on_show_pipeline_status(self):
        self._dialog_service.show_pipeline_status()

    def _on_show_about(self):
        self._dialog_service.show_about()

    # ================================================================
    # 向后兼容属性
    # ================================================================

    @property
    def panels(self):
        return self._panel_factory.get_loaded_panels()

    @property
    def work_dir(self):
        return self._workspace_initializer.work_dir

    @work_dir.setter
    def work_dir(self, value):
        self._workspace_initializer.work_dir = value

    @property
    def worker(self):
        return self._pipeline_executor.worker

    def log_message(self, message, level='info'):
        self._event_bus.publish('LogMessage', {'message': message, 'level': level})

    def update_progress(self, percentage, message):
        self._event_bus.publish('ProgressUpdate', {'percentage': percentage, 'message': message})

    def get_current_config(self):
        return self._config_manager.get_current_config()


# ============================================================
def main():
    if multiprocessing.current_process().name != 'MainProcess':
        sys.exit(0)

    # ★ GDAL 依赖检查（移至此处以利用 global_exception_handler 展示友好弹窗）
    try:
        import osgeo  # noqa: F401
        from osgeo import gdal, ogr  # noqa: F401
    except ImportError:
        from PyQt5.QtWidgets import QMessageBox, QApplication as _QA
        _qa = _QA.instance() or _QA(sys.argv)
        QMessageBox.critical(
            None, "依赖缺失",
            "GDAL (osgeo) 未安装，程序无法运行。\n\n"
            "请运行以下命令安装：\n"
            "  conda install -c conda-forge gdal\n"
            "或访问 https://gdal.org/download.html"
        )
        sys.exit(1)

    app = QApplication.instance()
    if not app:
        app = QApplication(sys.argv)
    app.setApplicationName("Mega Water")
    app.setOrganizationName("WaterQuality")

    try:
        from src.auth.license_manager import verify_license
        from src.auth.license_dialog import LicenseDialog
    except ImportError:
        _current_dir = os.path.dirname(os.path.abspath(__file__))
        _project_root = os.path.abspath(os.path.join(_current_dir, '..', '..'))
        if _project_root not in sys.path:
            sys.path.insert(0, _project_root)
        from src.auth.license_manager import verify_license
        from src.auth.license_dialog import LicenseDialog

    _is_license_valid, _license_msg = verify_license()
    if not _is_license_valid:
        LicenseDialog().exec_()
        sys.exit(0)

    window = WaterQualityGUI()
    window.show()
    sys.exit(app.exec_())


if __name__ == "__main__":
    if multiprocessing.current_process().name != 'MainProcess':
        sys.exit(0)
    try:
        multiprocessing.freeze_support()
    except Exception:
        pass
    main()