// Include gulp
var gulp = require('gulp');
var stylus = require('gulp-stylus');
var concat = require('gulp-concat');
var inject = require('gulp-inject');
var del = require('del');
var bowerFiles = require('main-bower-files')
    bower = require('gulp-bower');
var angularFilesort = require('gulp-angular-filesort'),
    ngAnnotate = require('gulp-ng-annotate');


var config = {

   appPath: './app',

   bowerDir: './bower_components'

}

gulp.task('copy:styl', function() {
  return gulp.src('src/styl/main.styl')
    .pipe(stylus())
    .pipe(gulp.dest(config.appPath + '/css'))
});

gulp.task('copy:html', function() {
  return gulp.src('src/html/**/*.html')
    .pipe(gulp.dest(config.appPath))
});

gulp.task('copy:scripts', function() {
  return gulp.src('src/scripts/**/*.js')
    .pipe(ngAnnotate())
    .pipe(gulp.dest(config.appPath + '/scripts'))
});

gulp.task('copy:bower', ['bower'], function() {
  return gulp.src(config.bowerDir + '/**/*.*')
    .pipe(gulp.dest(config.appPath + '/bower_components'))
});

gulp.task('bower', function() {
    return bower()

       .pipe(gulp.dest(config.bowerDir))
;
});

gulp.task('clean', function (cb) {
  del([
    config.appPath + '/**'
  ], cb);
});

gulp.task('build', ['copy:bower', 'copy:scripts', 'copy:styl', 'copy:html'], function () {
  var target = gulp.src(config.appPath + '/index.html');
  // It's not necessary to read the files (will speed up things), we're only after their paths:
  var sources = gulp.src([config.appPath + '/css/**/*.css'], {read: false});

  return target.pipe(inject(sources, {ignorePath: 'app', relative: true}))
        .pipe(inject(gulp.src(bowerFiles(), {read: false}), {name: 'bower'}))
        .pipe(inject(gulp.src(config.appPath + '/scripts/**/*.js') // gulp-angular-filesort depends on file contents, so don't use {read: false} here
            .pipe(angularFilesort())))
        .pipe(gulp.dest(config.appPath));
});

gulp.task('default', ['build']);