/** 
 * @author Robert Strutts <Robert@TryingToScale.com>
 * @copyright Copyright (c) 2022, Robert Strutts.
 * @license https://mit-license.org/
 */

/* My Plug-Ins */
const extend = require('./gulp_deps/gulp-extend');
const when = require('./gulp_deps/gulp-when');
const combine = require('./gulp_deps/gulp-combine');
/* Terser Ugilfy Settings */
const ecma_latest = 8;
const warn_level = { warnings: true };
const compress = { compress: { dead_code: true, drop_debugger:  false, arrows: false, properties: false } };
const mangle = { mangle: false }; // { properties: { keep_quoted: true } }
const output = { output: {comments: false} }; // Destroy Commment Blocks!
const options = { module: false, keep_classnames: true, keep_fnames: true, toplevel: false, safari10: false };
const common = extend( warn_level, compress, mangle, options, output );
const uglify_latest_e = { ecma: ecma_latest, ie8: false };
const uglify_latest = extend( uglify_latest_e, common );
/* Gulp Add-Ons */
const { src, dest, series, parallel, watch } = require('gulp');
const uglify = require('gulp-terser');
const concat = require('gulp-concat');
const rename = require('gulp-rename');
const sourcemaps = require("gulp-sourcemaps");
/* Core TTS JS */
const tts_js_files = [ 
    'core/begin.js', 
    'core/core.js', 
    'core/addons/*.js',
    'core/end.js' 
];
/* Destination Folders for JS */
const js_dest = 'assets/dist/';
/* Use Map instead of .js.map */
const map = { mapFile: function(mapFilePath) { return mapFilePath.replace('.js.map', '.map'); } };

function tts_js() {
   return when([
     new Promise(function(resolve, reject) {    
        src( tts_js_files )
            .pipe(sourcemaps.init({ loadMaps: true }))
            .pipe(concat( 'tts.js' ))
            .pipe(dest( js_dest ))
            .pipe(rename( { extname: '.min.js' } ))
            .pipe(uglify( uglify_latest ) )
            .pipe(sourcemaps.write(".", map ))
            .pipe(dest( js_dest ))
            .on('end', resolve);
     })
   ]);  
}

function watch_js() {
  watch(tts_js_files, tts_js);
}

exports.js = parallel(tts_js);
exports.all = parallel(tts_js);
exports.watcher = series( parallel(tts_js), watch_js );
//exports.css = css;
//exports.html = html;
exports.default = parallel(tts_js);