var gulp    = require('gulp'); 
var uglify  = require('gulp-uglify');
var rename  = require('gulp-rename');
var clean   = require('gulp-clean');
var srcmaps = require('gulp-sourcemaps');
var jsdoc   = require('gulp-jsdoc3');
var cssnano = require('gulp-cssnano');
var karma   = require('karma');
var testServer = require('./test/test-server.js');
var srcPath     = './';
var srcFile     = 'es5-ff-spa-loader.js';
var srcCss      = 'es5-ff-spa-loader.css';
var distPathJS  = 'dist/js';
var distPathCSS = 'dist/css';
var testSrc     = 'test/*.js';

gulp.task('clean', function() {
	return gulp.src('dist').pipe(clean());
});

gulp.task('buildScript', ['test'], function() {
	return gulp.src(srcFile, {cwd: srcPath}).pipe(gulp.dest(distPathJS));
});

gulp.task('buildScriptMin', ['buildScript'], function() {
	return gulp.src(srcFile, {cwd: srcPath})
		.pipe(srcmaps.init())
		.pipe(uglify({/*preserveComments: 'license'*/}))
		.pipe(rename({ extname: '.min.js' }))
		.pipe(srcmaps.write('.'))
		.pipe(gulp.dest(distPathJS));
});

gulp.task('buildCss', ['test'], function() {
	return gulp.src(srcCss, {cwd: srcPath}).pipe(gulp.dest(distPathCSS));
});

gulp.task('buildCssMin',['buildCss'], function () {
	return gulp.src(srcCss, {cwd: srcPath})
		.pipe(srcmaps.init())
		.pipe(cssnano())
		.pipe(rename({ extname: '.min.css' }))
		.pipe(srcmaps.write('.'))
		.pipe(gulp.dest(distPathCSS));
});

gulp.task('testKarma',['clean'], function (done) {
	return testServer.start(function () {
		new karma.Server({
			configFile: __dirname + '/test/karma.conf.js',
			singleRun: true
		}, function(exitCode) {
			console.log('Karma exit code:', exitCode);
			//done();
			testServer.stop(done);
		}).start();	
	});
});

gulp.task('buildJSDoc', function (cb) {
	var jsdocConfig = {
		opts: {
			destination: 'dist/jsdoc',
			encoding: 'utf8',
			access: 'all'
		},
		templates: {
			cleverLinks: true
		}
	};
	return gulp.src(srcFile, {read: false}).pipe(jsdoc(jsdocConfig, cb));
});

gulp.task('test',  ['testKarma']);
gulp.task('build', ['test','buildCssMin','buildScriptMin'/*,'buildJSDoc'*/]);