import 'reflect-metadata';

import { mkdir, writeFile } from 'node:fs/promises';
import { resolve } from 'node:path';

import { createApp } from '../bootstrap';
import { loadDotenv } from '../config/load-dotenv';
import { buildOpenApiDocument } from '../openapi/document';

async function main(): Promise<void> {
  loadDotenv();
  const { app, config } = await createApp();
  await app.init();

  const document = buildOpenApiDocument(app, config);
  const outputDir = resolve(process.cwd(), 'openapi');
  const outputFile = resolve(outputDir, 'lingxi.openapi.json');
  await mkdir(outputDir, { recursive: true });
  await writeFile(outputFile, `${JSON.stringify(document, null, 2)}\n`, 'utf8');

  process.stdout.write(`OpenAPI 已导出：${outputFile}\n`);
  await app.close();
}

void main().catch((error: unknown) => {
  process.stderr.write(
    `OpenAPI 导出失败：${error instanceof Error ? (error.stack ?? error.message) : String(error)}\n`,
  );
  process.exitCode = 1;
});