var gulp = require('gulp'),
    bower = require('gulp-bower'),
    changed = require('gulp-changed'),
    jade = require('gulp-jade'),
    minifyhtml = require('gulp-minify-html'),
    notify = require('gulp-notify'),
    sass = require('gulp-ruby-sass');

var config = {
    sassPath: './resources/sass',
    jadePath: './resources/jade',
    bowerDir: './bower_components'
}

gulp.task('watch', function() {
    gulp.watch(config.sassPath + '/**/*.scss', ['css']);
    gulp.watch(config.jadePath + '/**/*.jade', ['jade']);
});

gulp.task('default', ['bower', 'css', 'jade', 'img']);

gulp.task('bower', function() {
    return bower()
        .pipe(gulp.dest(config.bowerDir));
});

gulp.task('css', function() {
    return gulp.src(config.sassPath + '/style.scss')
        .pipe(sass({
                style: 'compressed',
                loadPath: [
                    './resources/sass',
                    config.bowerDir + '/bootstrap-sass-official/assets/stylesheets'
                ]
            })
            .on('error', notify.onError(function (error) {
                return "Error: " + error.message;
            }))
        )
        .pipe(gulp.dest('./build/assets/css'));
});

gulp.task('jade', function() {
    var src = './resources/jade/*.jade',
        dst = './build';

    return gulp.src(src)
        .pipe(changed(dst, {extension: 'html'}))
        .pipe(jade())
        .pipe(minifyhtml())
        .pipe(gulp.dest(dst));
});

gulp.task('img', function() {
    return gulp.src('./resources/img/*')
        .pipe(gulp.dest('./build/assets/img'));
});