/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
const gulp = require('gulp');
const sass = require('gulp-sass');
const header = require('gulp-header');
const cleanCSS = require('gulp-clean-css');
const concat = require('gulp-concat');
const rename = require('gulp-rename');
const terser = require('gulp-terser');
const noop = require('gulp-noop');
const streamqueue = require('streamqueue');

let prod = false;

const apache2License = [
  '/*',
  ' * Licensed to the Apache Software Foundation (ASF) under one or more',
  ' * contributor license agreements.  See the NOTICE file distributed with',
  ' * this work for additional information regarding copyright ownership.',
  ' * The ASF licenses this file to You under the Apache License, Version 2.0',
  ' * (the "License"); you may not use this file except in compliance with',
  ' * the License.  You may obtain a copy of the License at',
  ' *',
  ' *      http://www.apache.org/licenses/LICENSE-2.0',
  ' *',
  ' * Unless required by applicable law or agreed to in writing, software',
  ' * distributed under the License is distributed on an "AS IS" BASIS,',
  ' * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.',
  ' * See the License for the specific language governing permissions and',
  ' * limitations under the License.',
  ' */',
  '',
].join('\n');

function srcDir(sub) {
  return `./src/main/frontend/${sub}`;
}
function distDir(sub) {
  return `./target/frontend/dist/${sub}`;
}

gulp.task('styles', () => streamqueue({ objectMode: true },
  gulp.src(srcDir('scss/*.scss'))
    .pipe(header(apache2License))
    .pipe(sass().on('error', sass.logError))
    .pipe(prod ? cleanCSS() : noop()),
  gulp.src([
    './node_modules/jam-icons/css/jam.min.css',
    './node_modules/js-autocomplete/auto-complete.css',
  ]))
  .pipe(concat('styles.min.css'))
  .pipe(gulp.dest(distDir('jcr_root/static/clientlibs/sling-cms/css')))
  .pipe(rename('bundle.css'))
  .pipe(gulp.dest(distDir('jcr_root/content/starter/css'))));

gulp.task('cms-assets', () => gulp.src([srcDir('img/*')])
  .pipe(gulp.dest(distDir('jcr_root/static/clientlibs/sling-cms/img'))));

gulp.task('cms-fonts', () => gulp.src(['./node_modules/jam-icons/fonts/*', srcDir('fonts/*')])
  .pipe(gulp.dest(distDir('jcr_root/static/clientlibs/sling-cms/fonts'))));

gulp.task('cms-js', () => streamqueue({ objectMode: true },
  gulp.src([
    './node_modules/rava/dist/rava.min.js',
    './node_modules/wysihtml/dist/minified/wysihtml.min.js',
    './node_modules/wysihtml/dist/minified/wysihtml.all-commands.min.js',
    './node_modules/wysihtml/dist/minified/wysihtml.table_editing.min.js',
    './node_modules/wysihtml/dist/minified/wysihtml.toolbar.min.js',
    './node_modules/handlebars/dist/handlebars.min.js',
    './node_modules/js-autocomplete/auto-complete.min.js',
  ]),
  gulp.src([
    './node_modules/sorttable/sorttable.js',
    './node_modules/wysihtml/parser_rules/advanced_and_extended.js',
  ]).pipe(prod ? terser() : noop()),
  gulp.src([
    srcDir('js/cms.js'),
    srcDir('js/cms.*.js'),
  ])
    .pipe(prod ? terser() : noop())
    .pipe(concat('cms.js'))
    .pipe(header(apache2License)))
  .pipe(concat('scripts-all.min.js'))
  .pipe(gulp.dest(distDir('jcr_root/static/clientlibs/sling-cms/js'))));

gulp.task('editor-fonts', () => gulp.src(['./node_modules/jam-icons/fonts/*', './src/fonts/*'])
  .pipe(gulp.dest(distDir('jcr_root/static/clientlibs/sling-cms-editor/fonts'))));

gulp.task('editor-js', () => gulp.src([
  srcDir('js/editor.js'),
])
  .pipe(terser())
  .pipe(header(apache2License))
  .pipe(concat('editor.min.js'))
  .pipe(gulp.dest(distDir('jcr_root/static/clientlibs/sling-cms-editor/js'))));

gulp.task('editor-styles', () => streamqueue({ objectMode: true },
  gulp.src([srcDir('scss/editor.scss')])
    .pipe(sass().on('error', sass.logError))
    .pipe(prod ? cleanCSS() : noop())
    .pipe(header(apache2License)),
  gulp.src([
    './node_modules/jam-icons/css/jam.min.css',
  ]))
  .pipe(concat('editor.min.css'))
  .pipe(gulp.dest(distDir('jcr_root/static/clientlibs/sling-cms-editor/css'))));

gulp.task('cms-styles', () => streamqueue({ objectMode: true },
  gulp.src(srcDir('scss/cms.scss'))
    .pipe(sass().on('error', sass.logError))
    .pipe(prod ? cleanCSS() : noop())
    .pipe(header(apache2License)),
  gulp.src([
    './node_modules/jam-icons/css/jam.min.css',
    './node_modules/js-autocomplete/auto-complete.css',
  ]))
  .pipe(concat('styles.min.css'))
  .pipe(gulp.dest(distDir('jcr_root/static/clientlibs/sling-cms/css'))));

gulp.task('starter-assets', () => gulp.src(srcDir('img/*'))
  .pipe(gulp.dest(distDir('jcr_root/content/starter/img'))));

gulp.task('starter-fonts', () => gulp.src([srcDir('fonts/*')])
  .pipe(gulp.dest(distDir('jcr_root/content/starter/fonts'))));

gulp.task('starter-logo', () => gulp.src(srcDir('img/sling-logo.svg'))
  .pipe(gulp.dest(distDir('jcr_root/content/starter'))));

gulp.task('starter-styles', () => gulp.src(srcDir('scss/starter.scss'))
  .pipe(sass().on('error', sass.logError))
  .pipe(cleanCSS())
  .pipe(header(apache2License))
  .pipe(rename('bundle.css'))
  .pipe(gulp.dest(distDir('jcr_root/content/starter/css'))));

gulp.task('set-prod', () => {
  prod = true;
});

gulp.task('cms', gulp.series('cms-styles', 'cms-js', 'cms-assets', 'cms-fonts'));

gulp.task('editor', gulp.series('editor-styles', 'editor-js', 'editor-fonts'));

gulp.task('starter', gulp.series('starter-styles', 'starter-assets', 'starter-fonts', 'starter-logo'));

gulp.task('dev', gulp.series('starter', 'cms', 'editor'));

gulp.task('prod', gulp.series('set-prod', 'dev'));