Code Snippet Server

import * as fs from 'fs/promises'; import * as path from 'path'; import { CodeSnippet } from "../types/snippets.js"; import { SnippetQuery, StorageBase } from "./storage_base.js"; export class LocalStorage implements StorageBase { private snippetsFilePath: string; private snippets: CodeSnippet[] = []; constructor() { this.snippetsFilePath = path.join(process.env.HOME || '', '.code-snippets.json'); } async Initialize(): Promise<void> { try { await fs.access(this.snippetsFilePath); } catch { await fs.writeFile(this.snippetsFilePath, JSON.stringify([], null, 2)); } await this.ReloadSnippets(); } async ReloadSnippets(): Promise<void> { const rawData = await fs.readFile(this.snippetsFilePath, 'utf-8'); this.snippets = JSON.parse(rawData); } async ListSnippets(query?: SnippetQuery): Promise<CodeSnippet[]> { // 単一のfilter関数で全フィルタリング条件を処理 return this.snippets.filter(s => { if (query) { if (query.language && s.language.toLowerCase() !== query.language.toLowerCase()) { return false; } if (query.tag && !s.tags.some(t => t.toLowerCase() === query.tag!.toLowerCase())) { return false; } if (query.title && !s.title.toLowerCase().includes(query.title.toLowerCase() || '')) { return false; } } return true; }); } async InsertSnippet(snippet: CodeSnippet): Promise<void> { // 既存のスニペットを上書きしないよう、IDが存在しない場合のみ追加 if (!this.snippets.some(s => s.id === snippet.id)) { this.snippets.push(snippet); await this.saveSnippets(); } } async DeleteSnippet(id: string): Promise<boolean> { const initialLength = this.snippets.length; this.snippets = this.snippets.filter(s => s.id !== id); if (this.snippets.length < initialLength) { await this.saveSnippets(); return true; } return false; } private async saveSnippets(): Promise<void> { await fs.writeFile(this.snippetsFilePath, JSON.stringify(this.snippets, null, 2)); } }