snapshot

src/server/db.ts

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+import { Database } from "bun:sqlite";
+import { mkdirSync } from "fs";
+import path from "path";
+
+let dbInstance: Database | null = null;
+
+function migrate(database: Database) {
+  database.run(`
+    CREATE TABLE IF NOT EXISTS snippets (
+      id INTEGER PRIMARY KEY AUTOINCREMENT,
+      title TEXT,
+      body TEXT NOT NULL DEFAULT '',
+      sort_order INTEGER NOT NULL DEFAULT 0,
+      created_at TEXT NOT NULL,
+      updated_at TEXT NOT NULL
+    );
+  `);
+  database.run(`
+    CREATE TABLE IF NOT EXISTS tags (
+      id INTEGER PRIMARY KEY AUTOINCREMENT,
+      name TEXT NOT NULL UNIQUE COLLATE NOCASE
+    );
+  `);
+  database.run(`
+    CREATE TABLE IF NOT EXISTS snippet_tags (
+      snippet_id INTEGER NOT NULL REFERENCES snippets(id) ON DELETE CASCADE,
+      tag_id INTEGER NOT NULL REFERENCES tags(id) ON DELETE CASCADE,
+      PRIMARY KEY (snippet_id, tag_id)
+    );
+  `);
+  database.run(`CREATE INDEX IF NOT EXISTS idx_snippets_updated ON snippets(updated_at);`);
+}
+
+export function getDb(): Database {
+  if (dbInstance) return dbInstance;
+  const dir = path.join(process.cwd(), "data");
+  mkdirSync(dir, { recursive: true });
+  const file = path.join(dir, "notes.sqlite");
+  dbInstance = new Database(file);
+  dbInstance.run("PRAGMA journal_mode = WAL;");
+  dbInstance.run("PRAGMA foreign_keys = ON;");
+  migrate(dbInstance);
+  return dbInstance;
+}