const { existsSync } = require('fs');
const { resolve, sep } = require('path');
const packageJson = require('./package.json');
const fs = require('fs');
const glob = require('glob');

console.log('VERSION: ', packageJson.version);

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 {
    alias: getPackagePaths().reduce((memo, item) => {
      memo[item[0]] = item[1]
      return memo
    }, {}),
    define: {
      'process.env.API_BASE_URL': API_BASE_URL || API_BASE_PATH,
      'process.env.APP_ENV': process.env.APP_ENV,
      'process.env.VERSION': packageJson.version,
    },
    // 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 getNamespace() {
  const content = fs.readFileSync(resolve(process.cwd(), 'package.json'), 'utf-8');
  const json = JSON.parse(content);
  return json.name;
}

function getTsconfigPaths() {
  const content = fs.readFileSync(resolve(process.cwd(), 'tsconfig.json'), 'utf-8');
  const json = JSON.parse(content);
  return json.compilerOptions.paths;
}

function getPackagePaths() {
  const paths = getTsconfigPaths();
  const pkgs = [];
  for (const key in paths) {
    if (Object.hasOwnProperty.call(paths, key)) {
      const dir = paths[key][0];
      if (dir.includes('*')) {
        const files = glob.sync(dir);
        for (const file of files) {
          const dirname = resolve(process.cwd(), file);
          if (existsSync(dirname)) {
            const re = new RegExp(dir.replace('*', '(.+)'));
            const p = dirname.substring(process.cwd().length + 1).split(sep).join('/');
            const match = re.exec(p);
            pkgs.push([key.replace('*', match?.[1]), dirname]);
          }
        }
      } else {
        const dirname = resolve(process.cwd(), dir);
        pkgs.push([key, dirname]);
      }
    }
  }
  return pkgs;
}

function resolveNocobasePackagesAlias(config) {
  const pkgs = getPackagePaths();
  for (const [pkg, dir] of pkgs) {
    config.module.rules.get('ts-in-node_modules').include.add(dir);
    config.resolve.alias.set(pkg, dir);
  }
}

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