import {
  dest,
  src,
  task,
  watch
} from 'gulp';
import { createProject } from 'gulp-typescript';
import uglify from 'gulp-uglify';
import merge from 'merge2';
import pump from 'pump';
import gulpTypedoc from 'gulp-typedoc';

const project = createProject('tsconfig.json');
const tsSrc = ['src/**/*.ts', '!src/__tests__/**'];
task('compile', () => {
  const result = src(tsSrc)
    .pipe(project());

  return merge([
    result.dts.pipe(dest('definition')),
    result.js.pipe(dest('lib'))
  ]);
});

task('compress', ['compile'], (cb) => {
  pump([
    src('lib/**/*.js'),
    uglify(),
    dest('lib')
  ])
});

// http://typedoc.org/guides/doccomments/
task('doc', () => {
  pump([
    src(['src/**/**.ts']),
    gulpTypedoc({
      mode: 'file',
      module: 'commonjs',
      target: 'esnext',
      out: 'docs/',
      name: 'GSS API Client',
      exclude: '**/__tests__/**'
    })
  ]);
});

task('build', ['compress', 'doc']);
task('default', ['compress']);

task('watch', () => {
  watch(tsSrc, ['compile'])
});