#!/usr/bin/env node

const path = require('path');
const fs = require('fs');
const napi = require('napi-build-utils');

const pkg = require(path.resolve('package.json'));
const rc = require('./rc')(pkg);
const log = require('./log')(rc, process.env);
const download = require('./download');
const asset = require('./asset');
const util = require('./util');

const prebuildClientVersion = require('./package.json').version;
if (rc.version) {
  console.log(prebuildClientVersion);
  process.exit(0);
}

if (rc.path) process.chdir(rc.path);

if (rc.runtime === 'electron' && rc.target[0] === '4' && rc.abi === '64') {
  log.error(
    `Electron version ${rc.target} found - skipping prebuild-install work due to known ABI issue`
  );
  log.error(
    'More information about this issue can be found at https://github.com/lgeiger/node-abi/issues/54'
  );
  process.exit(1);
}

if (!fs.existsSync('package.json')) {
  log.error('setup', 'No package.json found. Aborting...');
  process.exit(1);
}

if (rc.help) {
  console.error(fs.readFileSync(path.join(__dirname, 'help.txt'), 'utf-8'));
  process.exit(0);
}

log.info('begin', 'Prebuild-install version', prebuildClientVersion);

const opts = Object.assign({}, rc, { pkg: pkg, log: log });

if (napi.isNapiRuntime(rc.runtime)) napi.logUnsupportedVersion(rc.target, log);

const origin = util.packageOrigin(process.env, pkg);

if (opts.force) {
  log.warn('install', 'prebuilt binaries enforced with --force!');
  log.warn('install', 'prebuilt binaries may be out of date!');
} else if (origin && origin.length > 4 && origin.substr(0, 4) === 'git+') {
  log.info('install', 'installing from git repository, skipping download.');
  process.exit(1);
} else if (opts.buildFromSource) {
  log.info(
    'install',
    '--build-from-source specified, not attempting download.'
  );
  process.exit(1);
}

const startDownload = function (downloadUrl) {
  download(downloadUrl, opts, function (err) {
    if (err) {
      log.warn('install', err.message);
      return process.exit(1);
    }
    log.info('install', 'Successfully installed prebuilt binary!');
  });
};

if (opts.token) {
  asset(opts, function (err, assetId) {
    if (err) {
      log.warn('install', err.message);
      return process.exit(1);
    }

    startDownload(util.getAssetUrl(opts, assetId));
  });
} else {
  startDownload(util.getDownloadUrl(opts));
}