import path from 'node:path';

import type { ApplicationBuilderOptions } from '@angular/build';
import type { Target } from '@angular-devkit/architect';
import type { Plugin } from 'esbuild';

export default (builderOptions: ApplicationBuilderOptions, _target: Target): Plugin => {
  for (const asset of builderOptions.assets?.filter(asset => typeof asset === 'object') ?? []) {
    if (asset.input.startsWith('node_modules/')) {
      // Replace with resolved path to avoid issues when building.
      if (asset.input.startsWith('node_modules/axios/')) {
        asset.input = asset.input.replace('node_modules/axios', path.dirname(require.resolve('axios/package.json')));
      } else if (asset.input.startsWith('node_modules/swagger-ui-dist/')) {
        // https://github.com/swagger-api/swagger-ui/blob/v4.6.1/swagger-ui-dist-package/README.md
        asset.input = require('swagger-ui-dist').getAbsoluteFSPath();
      }
    }
  }

  builderOptions.define ??= {};
  builderOptions.define.__VERSION__ = JSON.stringify(process.env.APP_VERSION ?? 'unknown');

  return {
    name: 'define:vars',
    setup(_build) {},
  };
};