index.plugin.ts

import type { Config } from "@farmfe/core/binding";

export default function NestPlugin(options?: Config['config']) {
  // not support multiple input files in nestjs we just need to use one input file first one
  const inputFileEntry = Object.values(options?.input || {})[0] ?? 'src/main.ts';

  return {
    name: 'NestPlugin',
    config: (config) => {
      const mode = config.compilation.mode ?? process.env.NODE_ENV ?? 'development';
      const isDev = mode === 'development';

      return {
        compilation: {
          input: {
            'NestJs': inputFileEntry,
          },
          script: {
            plugins: [],
            target: 'es2019',
            parser: {
              tsConfig: {
                decorators: true,
                dts: false,
                noEarlyErrors: false,
                tsx: false,
              },
            },
            decorators: {
              legacyDecorator: true,
              decoratorMetadata: true,
              decoratorVersion: '2021-12',
              includes: [inputFileEntry],
              excludes: ['node_modules/**/*'],
            },
          },
          presetEnv: !isDev,
          minify: !isDev,
          output: {
            format: 'esm',
            targetEnv: 'node',
            entryFilename: '[entryName].js',
            filename: '[name].[hash].mjs',
          },
          ...options
        }
      }
    }
  };
}