var gulp = require('gulp'),
gulpif = require('gulp-if'),
sprite = require('css-sprite').stream,
sass = require('gulp-sass'),
autoprefixer = require('gulp-autoprefixer'),
minifycss = require('gulp-minify-css'),
rename = require('gulp-rename'),
notify = require('gulp-notify'),
clean = require('gulp-clean'),
watch = require('gulp-watch'),
svgSprite = require('gulp-svg-sprite'),
plumber = require('gulp-plumber'),
path = require('path'),
concat = require('gulp-concat'),
uglify = require('gulp-uglify'),
sourcemaps = require('gulp-sourcemaps'),
browserSync = require('browser-sync'),
reload = browserSync.reload,
svgmin = require('svgmin'),
svgspritesheet = require('gulp-svg-spritesheet'),
gulpif = require('gulp-if'),
scsslint = require('gulp-scss-lint'),
fontcustom = require('fontcustom');

var notifyInfo = {
  title: 'Gulp',
  icon: path.join(__dirname, 'gulp.png')
};

//error notification settings for plumber
var plumberErrorHandler = { errorHandler: notify.onError({
    title: notifyInfo.title,
    icon: notifyInfo.icon,
    message: "Error: <%= error.message %>"
  })
};

// JS plugins
gulp.task('plugins', function() {
  return gulp.src('./src/js/plugins/*.js')
    .pipe(plumber(plumberErrorHandler))
    .pipe(concat('plugins.js'))
    .pipe(gulp.dest('./public/build/js'))
    .pipe(rename({ suffix: '.min' }))
    .pipe(uglify())
    .pipe(gulp.dest('./public/build/js'));
});

//scripts
gulp.task('scripts', function() {
  return gulp.src('./src/js/*.js')
    .pipe(plumber(plumberErrorHandler))
    .pipe(concat('site.js'))
    .pipe(gulp.dest('./public/build/js'))
    .pipe(rename({ suffix: '.min' }))
    .pipe(uglify())
    .pipe(gulp.dest('./public/build/js'));
});

//scripts
gulp.task('jsbuild', function() {
  return gulp.src(['./public/build/js/plugins.js', './public/build/js/site.js'])
    .pipe(plumber(plumberErrorHandler))
    .pipe(concat('main.js'))
    .pipe(gulp.dest('./public/build/js'))
    .pipe(rename({ suffix: '.min' }))
    .pipe(uglify())
    .pipe(gulp.dest('./public/build/js'));
});

var bsconfig = {
    // 1. inform browser-sync to watch compiled *.css files instead of *.scss sass files
    files: ["./public/build/css/**/*.css", "./craft/templates/**/*.twig"],
    proxy: "tgcaus.craft.dev"
}

baseDir      = './src/lib/svgsprite',   // <-- Set to your SVG base directory
svgGlob      = '**/*.svg',       // <-- Glob to match your SVG files
outDir       = './public/build',     // <-- Main output directory
config       = {
    "mode": {
        "view": {
            "prefix": "tgc-%s",
            "sprite": "../svg/sprite.view.svg",
            "render": {
                "scss": {
                    "dest": "../../../src/scss/_svgsprite.scss"
                }
            },
            "example": true
        }
    }
};

gulp.task('svgsprite', function() {
    return gulp.src(svgGlob, {cwd: baseDir})
        .pipe(plumber())
        .pipe(svgSprite(config)).on('error', function(error){ console.log(error); })
        .pipe(gulp.dest(outDir))
});

gulp.task('svgsprite', function() {
    return gulp.src(svgGlob, {cwd: baseDir})
        .pipe(plumber())
        .pipe(svgSprite(config)).on('error', function(error){ console.log(error); })
        .pipe(gulp.dest(outDir))
});



// browser-sync task for starting the server.
gulp.task('browser-sync', function() {
    browserSync(bsconfig)
});

// Clean
gulp.task('clean', function() {
  return gulp.src(['./public/build/css/'], {read: false})
    .pipe(clean())
    .pipe(notify({
      "message": "CSS cleaned",
      "sound": "Glass",
    }));
});

gulp.task('sass', function() {
  gulp.task('clean');
    return gulp.src(['./src/scss/**/*.scss'])
      // .pipe(sourcemaps.init())
      .pipe(plumber(plumberErrorHandler))
      .pipe(sass())
      // .pipe(sourcemaps.write())
      .pipe(autoprefixer('last 2 version', 'safari 5', 'ie 7', 'ie 8', 'ie 9', 'opera 12.1', 'ios 6', 'android 4'))
      .pipe(gulp.dest('./public/build/css'))
      .pipe(rename({ suffix: '.min' }))
      .pipe(minifycss())
      .pipe(gulp.dest('./public/build/css'))
      .pipe(notify("Hey y'all, I just built the CSS"))
});

// generate sprite.png and _sprite.scss
gulp.task('sprites', function () {
  return gulp.src('src/lib/pngsprite/**/*.png')
    .pipe(sprite({
      name: 'pngsprite',
      style: '_pngsprite.scss',
      cssPath: '../img',
      processor: 'scss',
      prefix: 'pngsprite',
      retina: true,
      margin: 5
    }))
    .pipe(gulpif('*.png', gulp.dest('./public/build/img/')))
    .pipe(gulpif('*.scss', gulp.dest('./src/scss/')));
});

// generate scss with base64 encoded images
gulp.task('base64', function () {
  return gulp.src('./src/img/*.png')
    .pipe(sprite({
      base64: true,
      style: '_base64.scss',
      processor: 'scss'
    }))
    .pipe(gulp.dest('./src/scss/'));
});

gulp.task('scss-lint', function() {
  gulp.src('./src/scss/**/*.scss')
    .pipe(scsslint({'config': './src/scss/scsslint.yml'}));
});

// custom icons
gulp.task('icons', function() {
  return fontcustom({
    "config": './fontcustom.yml',
    "noisy": true
  });
});

gulp.task('watch', function() {
  gulp.watch('./src/scss/**/*.scss', ['sass']);
});

// Default task to be run with `gulp`
gulp.task('default', ['sass','browser-sync'], function () {
    gulp.watch("./src/scss/**/*.scss", ['sass']);
    gulp.watch("./craft/templates/**/*.twig");
});