import { existsSync } from "node:fs";
import { dirname, resolve } from "node:path";
import { fileURLToPath } from "node:url";
import { migrate } from "drizzle-orm/postgres-js/migrator";
import type { Database } from "./index";

const migrationsFolder = resolve(
  dirname(fileURLToPath(import.meta.url)),
  "../drizzle",
);

export async function runMigrations(db: Database) {
  if ((process.env.ENABLE_DB_MIGRATIONS ?? "").toLowerCase() !== "true") {
    console.log("Skipping migrations (ENABLE_DB_MIGRATIONS != true).");
    return;
  }

  const journalFile = resolve(migrationsFolder, "meta/_journal.json");

  if (!existsSync(journalFile)) {
    console.log("Skipping migrations (no drizzle migration files found).");
    return;
  }

  console.log("Running migrations...");
  await migrate(db, { migrationsFolder });
  console.log("Migrations complete.");
}