const { existsSync } = require('fs');
const { resolve } = require('path');

function getUmiConfig() {
  const { APP_PORT, API_BASE_URL } = process.env;
  const API_BASE_PATH = process.env.API_BASE_PATH || '/api/';
  const PROXY_TARGET_URL = process.env.PROXY_TARGET_URL || `http://127.0.0.1:${APP_PORT}`;
  const LOCAL_STORAGE_BASE_URL = process.env.LOCAL_STORAGE_BASE_URL || '/storage/uploads/';

  function getLocalStorageProxy() {
    if (LOCAL_STORAGE_BASE_URL.startsWith('http')) {
      return {};
    }

    return {
      [LOCAL_STORAGE_BASE_URL]: {
        target: PROXY_TARGET_URL,
        changeOrigin: true,
      },
    };
  }

  return {
    define: {
      'process.env.API_BASE_URL': API_BASE_URL || API_BASE_PATH,
    },
    // only proxy when using `umi dev`
    // if the assets are built, will not proxy
    proxy: {
      [API_BASE_PATH]: {
        target: PROXY_TARGET_URL,
        changeOrigin: true,
        pathRewrite: { [`^${API_BASE_PATH}`]: API_BASE_PATH },
      },
      // for local storage
      ...getLocalStorageProxy(),
    },
  };
}

function resolveNocobasePackagesAlias(config) {
  const clientSrc = resolve(process.cwd(), './packages/core/client/src');
  const utilsSrc = resolve(process.cwd(), './packages/core/utils/src');
  if (existsSync(clientSrc)) {
    config.module.rules.get('ts-in-node_modules').include.add(clientSrc);
    config.resolve.alias.set('@nocobase/client', clientSrc);
    config.module.rules.get('ts-in-node_modules').include.add(utilsSrc);
    config.resolve.alias.set('@nocobase/utils', utilsSrc);
  }
}

exports.getUmiConfig = getUmiConfig;
exports.resolveNocobasePackagesAlias = resolveNocobasePackagesAlias;