bring up to date with github

src/lib/db.ts

@@ -0,0 +1,48 @@
+import path from 'path'
+import fs from 'fs'
+import Database from 'better-sqlite3'
+
+const CONFIG_PATH = process.env.CONFIG_PATH ?? process.cwd()
+const DB_PATH = path.resolve(CONFIG_PATH, 'medialore.db')
+
+let _db: Database.Database | null = null
+
+export function getDb(): Database.Database {
+  if (_db) return _db
+  _db = new Database(DB_PATH)
+  _db.pragma('journal_mode = WAL')
+  _db.pragma('foreign_keys = ON')
+  initDb(_db)
+  return _db
+}
+
+function initDb(db: Database.Database): void {
+  db.exec(`
+    CREATE TABLE IF NOT EXISTS tag_categories (
+      id   TEXT PRIMARY KEY,
+      name TEXT NOT NULL UNIQUE
+    );
+
+    CREATE TABLE IF NOT EXISTS tags (
+      id          TEXT PRIMARY KEY,
+      name        TEXT NOT NULL,
+      category_id TEXT NOT NULL REFERENCES tag_categories(id) ON DELETE CASCADE
+    );
+
+    CREATE UNIQUE INDEX IF NOT EXISTS tags_name_category ON tags(name, category_id);
+
+    CREATE TABLE IF NOT EXISTS media_tags (
+      media_key TEXT NOT NULL,
+      tag_id    TEXT NOT NULL REFERENCES tags(id) ON DELETE CASCADE,
+      PRIMARY KEY (media_key, tag_id)
+    );
+
+    CREATE TABLE IF NOT EXISTS libraries (
+      id   TEXT PRIMARY KEY,
+      name TEXT NOT NULL,
+      path TEXT NOT NULL,
+      type TEXT NOT NULL CHECK(type IN ('games', 'mixed')),
+      cover_ext TEXT NULL
+    );
+  `)
+}