var gulp = require('gulp'),
	browserify = require('browserify'),
	connect = require('gulp-connect'),
	concat = require('gulp-concat'),
	embedlr = require('gulp-embedlr'),
	jsValidate = require('gulp-jsvalidate'),
	source = require('vinyl-source-stream'),
	uglify = require("gulp-uglify"),
	rename = require("gulp-rename"),
	streamify = require('gulp-streamify'),
	paths = require("./paths.js"),
	buffer = require('vinyl-buffer'),
	exorcist = require('exorcist'),
	optionalShim = require('./optionalShim.js'),
	notify = require('gulp-notify'),
	sourcemaps = require('gulp-sourcemaps');

gulp.task('browserify', function() {
	browserify({entries: ["./src/entry.js"],standalone: "YASQE", debug: true})
		.transform({global:true}, optionalShim)
		.exclude('jquery')
		.exclude('codemirror')
		.exclude('../../lib/codemirror') 
		.bundle()
		.pipe(exorcist(paths.bundleDir + '/' + paths.bundleFileName + '.js.map'))
		.pipe(source(paths.bundleFileName + '.js'))
		.pipe(gulp.dest(paths.bundleDir))
		.pipe(rename(paths.bundleFileName + '.min.js'))
		.pipe(buffer())
		.pipe(sourcemaps.init({
			loadMaps: true,
			debug:true,
		}))
		.pipe(uglify({
			compress: {
				//disable the compressions. Otherwise, breakpoints in minified files don't work (sourcemaped lines get offset w.r.t. original)
	            negate_iife: false,
	            sequences: false
	        }
		}))
		.pipe(sourcemaps.write('./'))
		.pipe(gulp.dest(paths.bundleDir));
});



gulp.task('browserifyWithDeps', function() {
	var bundler = browserify({entries: ["./src/entry.js"],standalone: "YASQE", debug: true});
	
	return bundler
		.bundle()
		.pipe(exorcist(paths.bundleDir + '/' + paths.bundleFileName + '.bundled.js.map'))
		.pipe(source(paths.bundleFileName + '.bundled.js'))
		.pipe(gulp.dest(paths.bundleDir))
		.pipe(rename(paths.bundleFileName + '.bundled.min.js'))
		.pipe(buffer())
		.pipe(sourcemaps.init({
			loadMaps: true,
			debug:true,
		}))
		.pipe(uglify({
			compress: {
				//disable the compressions. Otherwise, breakpoints in minified files don't work (sourcemaped lines get offset w.r.t. original)
				//minified files does increase from 457 to 459 kb, but can live with that 
	            negate_iife: false,
	            sequences: false
	        }
		}))
		.pipe(sourcemaps.write('./'))
		.pipe(gulp.dest(paths.bundleDir));
});


/**
 * Faster, because we don't minify, and include source maps in js file (notice we store it with .min.js extension, so we don't have to change the index.html file for debugging)
 */
gulp.task('browserifyForDebug', function() {
	var bundler = browserify({entries: ["./src/entry.js"],standalone: "YASQE", debug: true});
	
	return bundler
		.bundle()
	    .on("error", notify.onError(function(error) {
	    	return error.message;
	    }))
		.pipe(source(paths.bundleFileName + '.bundled.min.js'))
		.pipe(embedlr())
		.pipe(gulp.dest(paths.bundleDir))
		.pipe(connect.reload());
});