import { existsSync } from 'node:fs';
import path from 'node:path';
import { NestFactory } from '@nestjs/core';
import { ValidationPipe } from '@nestjs/common';
import { DocumentBuilder, SwaggerModule } from '@nestjs/swagger';
import { json, urlencoded } from 'express';
import { AppModule } from './app.module';
import { applyPendingMigrations } from './apply-migrations';
import { runBundledSeed } from './run-seed';

function swaggerUiAssetsPath() {
  const bundled = path.join(process.cwd(), 'runtime', 'swagger-ui');
  if (existsSync(path.join(bundled, 'swagger-ui.css'))) {
    return bundled;
  }
  return path.join(process.cwd(), 'node_modules', 'swagger-ui-dist');
}

async function bootstrap() {
  if (process.env.NODE_ENV === 'production') {
    await applyPendingMigrations();
    if (process.env.RUN_SEED === 'true' || process.env.RUN_SEED === 'force') {
      await runBundledSeed();
    }
  }

  const app = await NestFactory.create(AppModule);

  // تصاویر چک و رسید به‌صورت base64 داخل JSON می‌آیند و از سقف پیش‌فرض ۱۰۰KB رد می‌شوند
  const bodyLimit = process.env.BODY_LIMIT || '25mb';
  app.use(json({ limit: bodyLimit }));
  app.use(urlencoded({ extended: true, limit: bodyLimit }));

  // پشت LiteSpeed روی /server → GLOBAL_PREFIX=server/api
  const globalPrefix = process.env.GLOBAL_PREFIX || 'server/api';
  app.setGlobalPrefix(globalPrefix);
  app.enableCors({
    origin: true,
    credentials: true,
  });
  app.useGlobalPipes(
    new ValidationPipe({
      whitelist: true,
      transform: true,
      forbidNonWhitelisted: true,
      transformOptions: { enableImplicitConversion: true },
    }),
  );

  const swaggerConfig = new DocumentBuilder()
    .setTitle('Fabric Trade API')
    .setDescription('API سرور تجارت پارچه')
    .setVersion('1.0')
    .addBearerAuth()
    .build();
  const document = SwaggerModule.createDocument(app, swaggerConfig);
  SwaggerModule.setup(`${globalPrefix}/docs`, app, document, {
    customSwaggerUiPath: swaggerUiAssetsPath(),
  });

  const port = Number(process.env.PORT) || 3000;
  await app.listen(port);
  console.log(
    `Fabric Trade API listening on http://localhost:${port}/${globalPrefix}`,
  );
  console.log(`Swagger docs at http://localhost:${port}/${globalPrefix}/docs`);
}
void bootstrap();