var gulp = require('gulp');

var mocha = require('gulp-mocha');

var concat = require('gulp-concat');

var babel = require('gulp-babel');

var eslint = require('gulp-eslint');

var rollup = require('gulp-rollup');

var sourcemaps = require('gulp-sourcemaps');

var path = './priv/javascript';

var stdLibPath = path + '/lib/**/*.js';

var testPath = path + '/build/tests/**/*.spec.js';

var libPath = path + '/lib';

gulp.task('build', function() {

return gulp.src([libPath + '/**/*.js'])

.pipe(babel({sourceMap: false, modules:'common'}))

.pipe(gulp.dest('./priv/javascript/build/lib'));

});

gulp.task('build_test', function() {

return gulp.src(['./priv/javascript/tests/**/*.spec.js'])

.pipe(babel({sourceMap: false, modules:'common'}))

.pipe(gulp.dest('./priv/javascript/build/tests'));

});

gulp.task('test',['build', 'build_test'], function () {

return gulp.src(testPath, {read: false})

.pipe(mocha({reporter: 'nyan'}));

});

gulp.task('lint', function () {

return gulp.src([stdLibPath, testPath, '!./priv/javascript/build/**/*.js'])

.pipe(eslint())

.pipe(eslint.format())

.pipe(eslint.failOnError());

});

gulp.task('dist_build', function() {

return gulp.src(['./priv/javascript/**/*.js', '!./priv/javascript/build/**/*.js', '!./priv/javascript/dist/**/*.js', '!./priv/javascript/dist_build/**/*.js', '!./priv/javascript/tests/**/*.js'])

.pipe(babel({whitelist: ['flow'], optional: ["minification.deadCodeElimination"]}))

.pipe(gulp.dest('./priv/javascript/dist_build'));

});

gulp.task('dist_add_source_map', function() {

return gulp.src(['./priv/javascript/dist/elixir.js'])

.pipe(sourcemaps.init())

.pipe(sourcemaps.write())

.pipe(gulp.dest('./priv/javascript/dist'));

});

gulp.task('default', ['lint', 'test']);