import * as fs from 'fs-extra';
import * as path from 'path';
import { merge } from 'lodash';
import { exec } from 'child_process';
import { PLUGIN_PATHS, ROOT } from '../build/helpers';
import { cpus } from 'os';
import * as Queue from 'async-promise-queue';
import { Logger } from '../logger';

const MAIN_PACKAGE_JSON = require('../../package.json');
const VERSION = MAIN_PACKAGE_JSON.version;
const FLAGS = '--access public --tag beta';

const PACKAGE_JSON_BASE = {
  'description': 'Ionic Native - Native plugins for ionic apps',
  'module': 'index.js',
  'typings': 'index.d.ts',
  'author': 'ionic',
  'license': 'MIT',
  'repository': {
    'type': 'git',
    'url': 'https://github.com/ionic-team/ionic-native.git'
  }
};

const DIST = path.resolve(ROOT, 'dist/@ionic-native');

const PACKAGES = [];

const RXJS_VEERSION = '^5.0.1';
const CORE_VERSION = '^5.0.0';

const PLUGIN_PEER_DEPENDENCIES = {
  '@ionic-native/core': VERSION, // TODO change this in production
  'rxjs': RXJS_VEERSION
};

function getPackageJsonContent(name, peerDependencies = {}) {
  return merge(PACKAGE_JSON_BASE, {
    name: '@ionic-native/' + name,
    peerDependencies,
    version: VERSION
  });
}

function writePackageJson(data: any, dir: string) {
  const filePath = path.resolve(dir, 'package.json');
  fs.writeJSONSync(filePath, data);
  PACKAGES.push(dir);
}

function prepare() {
  // write @ionic-native/core package.json
  writePackageJson(
    getPackageJsonContent('core', { 'rxjs': RXJS_VEERSION }),
    path.resolve(DIST, 'core')
  );

  // write plugin package.json files
  PLUGIN_PATHS.forEach((pluginPath: string) => {
    const pluginName = pluginPath.split(/[\/\\]+/).slice(-2)[0];
    const packageJsonContents = getPackageJsonContent(pluginName, PLUGIN_PEER_DEPENDENCIES);
    const dir = path.resolve(DIST, 'plugins', pluginName);

    writePackageJson(packageJsonContents, dir);
  });
}

async function publish(ignoreErrors: boolean = false) {
  Logger.profile('Publishing');
  // upload 1 package per CPU thread at a time
  const worker = Queue.async.asyncify((pkg: any) => {
    new Promise<any>((resolve, reject) => {
      exec(`npm publish ${ pkg } ${ FLAGS }`, (err, stdout) => {
        if (stdout) {
          Logger.log(stdout.trim());
          resolve(stdout);
        }
        if (err) {
          if (!ignoreErrors) {
            if (err.message.includes('You cannot publish over the previously published version')) {
              Logger.verbose('Ignoring duplicate version error.');
              return resolve();
            }
            reject(err);
          }
        }
      });
    });
  });

  try {
    await Queue(worker, PACKAGES, cpus().length);
    Logger.info('Done publishing!');
  } catch (e) {
    Logger.error('Error publishing!');
    Logger.error(e);
  }
  Logger.profile('Publishing', { level: 'verbose' });
}

prepare();
publish();