Added auto database creation based on sql scripts and jwt key cache

databases/ensure.ts

@@ -0,0 +1,28 @@
+import { Database } from "@db/sqlite";
+
+export default async function ensureDatabases() {
+  for await (const file of Deno.readDir("databases/init")) {
+    if (!file.isFile) {
+      console.warn(`[WARN] Path ${file.name} is not a file.`);
+      continue;
+    }
+
+    const databaseName = file.name.substring(0, file.name.length - 4);
+    const databasePath = `databases/data/${databaseName}.db`;
+
+    try {
+      await Deno.stat(databasePath);
+    } catch (error) {
+      if (!(error instanceof Deno.errors.NotFound)) {
+        throw error;
+      }
+
+      const sqlInitCode = await Deno.readTextFile(
+        `databases/init/${file.name}`,
+      );
+      const database = new Database(databasePath);
+      database.run(sqlInitCode);
+      database.close();
+    }
+  }
+}