main.py

"""main.py（Flet App 入口）

責任：
- 組裝各個 View（設定/規則/快取/翻譯/...）並處理切頁。
- 只在 `__main__` 路徑呼叫 bootstrap_runtime() 做一次性的 runtime 初始化。

維護注意：
- main.py 可能被測試 import；因此不能在 import 階段就做 logging/config 初始化。
- 快取搜尋索引重建會在啟動後用背景 thread 執行，避免主畫面卡住。
"""

# =========================================================
# Window Constants - 視窗尺寸常數
# =========================================================
WINDOW_WIDTH_DEFAULT = 1200  # 預設視窗寬度
WINDOW_HEIGHT_DEFAULT = 850  # 預設視窗高度
WINDOW_MIN_WIDTH = 1050  # 視窗最小寬度
WINDOW_MIN_HEIGHT = 760  # 視窗最小高度

import logging

import flet as ft

from app.startup_tasks import start_background_startup_tasks
from app.ui.keyboard_shortcuts import create_keyboard_handler
from app.ui.quick_jump import show_quick_jump_panel
from app.view_registry import build_navigation_destinations, build_view_registry, get_window_size

logger = logging.getLogger("main_app")


def bootstrap_runtime():
    """初始化 runtime（config + logging），只應在 script entry 被呼叫一次。"""
    from translation_tool.utils.config_manager import load_config, setup_logging

    config = load_config()
    setup_logging(config)

    root_level = logging.getLogger().getEffectiveLevel()
    logger.info(
        f"日誌系統初始化成功，根記錄器級別已設為 {logging.getLevelName(root_level)} ({root_level})。"
    )


def main(page: ft.Page):
    page.title = "Minecraft 模組包繁體化工具"
    page.window_width = WINDOW_WIDTH_DEFAULT
    page.window_height = WINDOW_HEIGHT_DEFAULT
    page.window_min_width = WINDOW_MIN_WIDTH
    page.window_min_height = WINDOW_MIN_HEIGHT
    page.window_resizable = True
    page.bgcolor = "surfaceVariant"

    page.theme = ft.Theme(
        font_family="Noto Sans TC",
        use_material3=True,
        color_scheme_seed=ft.Colors.INDIGO,
        visual_density=ft.VisualDensity.COMFORTABLE,
    )
    page.theme_mode = ft.ThemeMode.LIGHT

    file_picker = ft.FilePicker()
    page.overlay.append(file_picker)

    registry = build_view_registry(page, file_picker)

    def resize_window_for_view(view_key: str):
        width, height = get_window_size(view_key)
        try:
            page.window.maximized = False
            page.window.width = width
            page.window.height = height
        except Exception:
            page.window_width = width
            page.window_height = height

    content_area = ft.Container(content=registry[0]['view'], expand=True)

    # 建立鍵盤快捷鍵處理器
    keyboard_handler = create_keyboard_handler(
        page, registry, lambda idx: change_view_by_index(idx)
    )

    def change_view(e):
        selected_index = e.control.selected_index
        item = registry[selected_index]
        content_area.content = item['view']
        resize_window_for_view(item['key'])
        page.update()

    def change_view_by_index(index: int):
        """透過索引直接切換視圖"""
        if 0 <= index < len(registry):
            item = registry[index]
            content_area.content = item['view']
            resize_window_for_view(item['key'])
            rail.selected_index = index
            page.update()

    # 註冊鍵盤事件處理
    page.on_keyboard_event = keyboard_handler.handle_keyboard

    def toggle_theme_mode(e):
        is_light = page.theme_mode == ft.ThemeMode.LIGHT
        page.theme_mode = ft.ThemeMode.DARK if is_light else ft.ThemeMode.LIGHT
        toggle_icon_btn.icon = ft.Icons.LIGHT_MODE if is_light else ft.Icons.DARK_MODE
        toggle_icon_btn.tooltip = "切換為淺色模式" if is_light else "切換為深色模式"
        page.update()

    toggle_icon_btn = ft.IconButton(
        icon=ft.Icons.DARK_MODE,
        tooltip="切換為深色模式",
        on_click=toggle_theme_mode,
    )

    # 快速跳轉功能
    def on_quick_jump(e):
        show_quick_jump_panel(page, registry, change_view_by_index)

    # 快捷鍵綁定搜尋功能
    keyboard_handler.set_search_callback(on_quick_jump)

    rail = ft.NavigationRail(
        selected_index=0,
        label_type=ft.NavigationRailLabelType.ALL,
        min_width=80,
        min_extended_width=200,
        extended=True,
        group_alignment=-0.95,
        destinations=build_navigation_destinations(registry),
        on_change=change_view,
        bgcolor=ft.Colors.SURFACE,
        leading=ft.Container(
            content=ft.Column(
                [
                    ft.IconButton(
                        ft.Icons.MENU,
                        on_click=lambda _: (
                            setattr(rail, "extended", not rail.extended) or page.update()
                        ),
                        tooltip="收合/展開選單",
                    ),
                    ft.IconButton(
                        ft.Icons.SEARCH,
                        on_click=on_quick_jump,
                        tooltip="快速跳轉 (Ctrl+P)",
                    ),
                ],
                spacing=5,
                alignment=ft.MainAxisAlignment.CENTER,
            ),
            margin=ft.margin.only(bottom=10),
        ),
        trailing=ft.Container(
            content=toggle_icon_btn,
            margin=ft.margin.only(top=10),
        ),
    )

    layout = ft.Row(
        controls=[
            rail,
            ft.VerticalDivider(width=1, thickness=1, color="outlineVariant"),
            content_area,
        ],
        expand=True,
        spacing=0,
    )

    page.add(layout)
    resize_window_for_view(registry[0]['key'])
    page.update()

    start_background_startup_tasks()


if __name__ == "__main__":
    try:
        bootstrap_runtime()
    except Exception as e:
        print(f"致命錯誤：配置或日誌系統初始化失敗！錯誤: {e}")

    ft.app(target=main)