const _gulp = require('gulp');
const help = require('gulp-help');

// gulp-help monkeypatches tasks to have an additional description parameter
const gulp = help(_gulp);

const jshint = require('gulp-jshint');
const mocha = require('gulp-mocha');
const execa = require('execa');
const path = require('path');
const del = require('del');

const nativeCoreDir = __dirname;
const srcDir = path.resolve(nativeCoreDir, 'src');
const testDir = path.resolve(nativeCoreDir, 'test');

const pkg = require('./package');
const jshintConfig = pkg.jshintConfig;

gulp.task('native.core.clean', 'Delete generated files', () => {
  return del([path.resolve(nativeCoreDir, 'build'),
	      path.resolve(nativeCoreDir, 'ext/node')]);
});

gulp.task('native.core.clean.all', 'Delete all files created by tasks',
	  ['native.core.clean']);

gulp.task('native.core.install', 'Install native core dependencies', () => {
  return execa('npm', ['install', '--build-from-source', '--unsafe-perm'],
               {cwd: nativeCoreDir, stdio: 'inherit'});
});

gulp.task('native.core.install.windows', 'Install native core dependencies for MS Windows', () => {
  return execa('npm', ['install', '--build-from-source'],
               {cwd: nativeCoreDir, stdio: 'inherit'}).catch(() => 
del(path.resolve(process.env.USERPROFILE, '.node-gyp', process.versions.node, 'include/node/openssl'), { force: true }).then(() =>
execa('npm', ['install', '--build-from-source'],
               {cwd: nativeCoreDir, stdio: 'inherit'})
               ))
});

gulp.task('native.core.link.create', 'Create npm link', () => {
  return execa('npm', ['link'], {cwd: nativeCoreDir, stdio: 'inherit'});
});

gulp.task('native.core.lint', 'Emits linting errors', () => {
  return gulp.src([`${nativeCoreDir}/index.js`, `${srcDir}/*.js`, `${testDir}/*.js`])
      .pipe(jshint(pkg.jshintConfig))
      .pipe(jshint.reporter('default'));
});

gulp.task('native.core.build', 'Build native package', () => {
  return execa('npm', ['run', 'build'], {cwd: nativeCoreDir, stdio: 'inherit'});
});

gulp.task('native.core.test', 'Run all tests', ['native.core.build'], () => {
  return gulp.src(`${testDir}/*.js`).pipe(mocha({reporter: 'mocha-jenkins-reporter'}));
});