feat: add dashboard persistence store

src/lib/server/db/migrations.ts

@@ -0,0 +1,52 @@
+import { existsSync } from "node:fs";
+import { dirname, join, resolve } from "node:path";
+import { fileURLToPath } from "node:url";
+import { migrate } from "drizzle-orm/bun-sqlite/migrator";
+import type { BunSQLiteDatabase } from "drizzle-orm/bun-sqlite";
+
+const MIGRATION_JOURNAL_PATH = join("meta", "_journal.json");
+
+export function applyDashboardMigrations(
+  database: BunSQLiteDatabase<Record<string, unknown>>,
+  migrationsFolder = resolveDashboardMigrationsFolder(),
+) {
+  migrate(database, { migrationsFolder });
+}
+
+export function resolveDashboardMigrationsFolder(
+  explicitFolder = process.env.DASHBOARD_MIGRATIONS_DIR,
+): string {
+  if (explicitFolder) return assertMigrationFolder(resolve(explicitFolder));
+
+  const cwdFolder = findMigrationFolder(process.cwd());
+  if (cwdFolder) return cwdFolder;
+
+  const moduleFolder = findMigrationFolder(dirname(fileURLToPath(import.meta.url)));
+  if (moduleFolder) return moduleFolder;
+
+  throw new Error(
+    "Unable to locate dashboard Drizzle migrations. Set DASHBOARD_MIGRATIONS_DIR.",
+  );
+}
+
+function findMigrationFolder(startPath: string): string | null {
+  let currentPath = resolve(startPath);
+
+  while (true) {
+    const candidate = join(currentPath, "drizzle");
+    if (hasMigrationJournal(candidate)) return candidate;
+
+    const parentPath = dirname(currentPath);
+    if (parentPath === currentPath) return null;
+    currentPath = parentPath;
+  }
+}
+
+function assertMigrationFolder(folder: string): string {
+  if (hasMigrationJournal(folder)) return folder;
+  throw new Error(`Dashboard migrations not found in ${folder}`);
+}
+
+function hasMigrationJournal(folder: string): boolean {
+  return existsSync(join(folder, MIGRATION_JOURNAL_PATH));
+}