refactor: v2.0 全量重构 — TypeScript + React + Zustand + IndexedDB
技术栈升级: - JavaScript → TypeScript 5.6(全量类型安全) - 原生 DOM → React 18(函数组件 + Hooks) - 全局变量 → Zustand 5(轻量状态管理) - localStorage → IndexedDB / Dexie.js 4(大容量、异步、索引) - marked.js → unified / remark / rehype(插件化渲染管线) - 无打包 → electron-vite 3(HMR 热更新) - 纯 CSS → CSS Variables + CSS Modules 新增功能: - 标签页状态 IndexedDB 持久化(关闭后可恢复) - 最近打开文件列表 - 大文件虚拟化行号(>2000 行) - 搜索高亮二分查找优化 O(log N) - rehype-sanitize HTML 安全过滤 文件结构: - 7 个源文件 → 51 个模块化文件 - src/main/ 主进程(6 文件) - src/preload/ 预加载(1 文件) - src/renderer/ 渲染进程(42 文件:组件/hooks/stores/lib/db/types/styles) - src/shared/ 共享类型(2 文件) 构建验证: - TypeScript 检查零错误 - electron-vite build 成功 - 产物:main 15kB + preload 2kB + renderer 1.5MB
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import { db, type SettingsRecord } from './schema'
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import { DEFAULT_SETTINGS, type Settings } from '../types/settings'
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export const settingsRepository = {
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async load(): Promise<Settings> {
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try {
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const record = await db.settings.get('default')
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if (record) {
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return {
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darkMode: record.darkMode,
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viewMode: record.viewMode,
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splitRatio: record.splitRatio,
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sidebarCollapsed: record.sidebarCollapsed,
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sidebarWidth: record.sidebarWidth
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}
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}
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} catch {
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// fallback
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}
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return { ...DEFAULT_SETTINGS }
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},
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async save(settings: Partial<Settings>): Promise<void> {
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const current = await this.load()
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const merged = { ...current, ...settings }
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const record: SettingsRecord = { id: 'default', ...merged }
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await db.settings.put(record)
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}
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}
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