Added a basic database schema and migration function

1 files changed, 26 insertions, 0 deletions

diff --git a/database/db.js b/database/db.js
new file mode 100644
index 0000000..d849429
--- /dev/null
+++ b/database/db.js
@@ -0,0 +1,26 @@
+import fs from "fs";
+import Database from "better-sqlite3";
+
+const allMigrations = [
+	"database/000_init.sql",
+];
+
+const db = new Database("jdm.db");
+db.pragma("foreign_keys = ON");
+
+db.transaction(function migrate() {
+	let version;
+	try {
+		version = db.prepare("SELECT version FROM schema_version").all()[0].version;
+	} catch {
+		version = 0;
+	}
+	if (version === allMigrations.length) return;
+	while (version < allMigrations.length) {
+		db.exec(fs.readFileSync(allMigrations[version], "utf8"));
+		version++;
+	}
+	db.exec(`DELETE FROM schema_version; INSERT INTO schema_version (version) VALUES (${version});`);
+})();
+
+export default db;