'use strict';

var _ = require('underscore');
var assetRev = require('broccoli-asset-rev');
var autoprefixer = require('broccoli-autoprefixer');
var browserify = require('broccoli-browserify');
var compileSass = require('broccoli-sass');
var csso = require('broccoli-csso');
var env = require('broccoli-env').getEnv();
var filterReact = require('broccoli-react');
var findBowerTrees = require('broccoli-bower');
var fs = require('fs');
var htmlmin = require('broccoli-htmlmin');
var imagemin = require('broccoli-imagemin');
var mergeTrees = require('broccoli-merge-trees');
var peg = require('broccoli-pegjs');
var pickFiles = require('broccoli-static-compiler');
var replace = require('broccoli-replace');
var sourceMap = require('broccoli-source-map');
var uglifyJs = require('broccoli-uglify-js');
var watchedTree = require('broccoli-watched-tree');

var appJs = pickFiles('src/js', { srcDir: '/', files: ['**/*.js', '**/*.jsx'], destDir: 'js' });
var compiledAppJs = filterReact(appJs);
var pegs = pickFiles('src/js', { srcDir: '/', files: ['**/*.pegjs'], destDir: 'js' });
var compiledPegs = peg(pegs);
var shimJs = pickFiles('src', { srcDir: '/shims', destDir: '/shims' });
var jqueryJs = pickFiles('src', { srcDir: '/vendor', files: ['jquery/dist/jquery.js'], destDir: '/vendor' });
var vendorJs = mergeTrees([shimJs, jqueryJs]);

vendorJs = browserify(vendorJs, { 
  entries: [
    './shims/es5-sham.js',
    './shims/es5-shim.js',
    './vendor/jquery/dist/jquery.js'
  ],
  browserify: {
    debug: (env == 'development' ? true : false)
  },
  outputFile: 'js/vendor.js'
});

compiledAppJs = mergeTrees([compiledAppJs, compiledPegs]);

var config = JSON.parse(fs.readFileSync('./config/' + env + '.json'));
compiledAppJs = replace(compiledAppJs, {
  files: ['js/config.js'],
  patterns: [{
    json: config
  }]
});

var nodeModules = watchedTree('node_modules');
compiledAppJs = mergeTrees([compiledAppJs, nodeModules]);

compiledAppJs = browserify(compiledAppJs, { 
  entries: [ './js/app.js' ],
  browserify: {
    debug: (env == 'development' ? true : false)
  },
  outputFile: 'js/app.js'
});

var js = mergeTrees([compiledAppJs, vendorJs]);

if (env != 'development') {
  js = uglifyJs(js, { compress: true });  
}

var appScss = pickFiles('src', { srcDir: '/css', destDir: '/css' });
var appHtml = pickFiles('src', { srcDir: '/',  files: ['index.html'], destDir: '/' });

var bootstrapScss = pickFiles('src', { 
  srcDir: '/vendor/bootstrap-sass-official/assets/stylesheets', 
  destDir: '/vendor/bootstrap/bootstrap-sass-official/assets/stylesheets' 
});

var scss = mergeTrees([appScss, bootstrapScss])
  
var css = compileSass([scss], 'css/app.scss', 'css/app.css', {
  sourceMap: (env == 'development' ? true : false)
});

if (env == 'development') {
  css = sourceMap.inline(css, { srcDir: '/css', destDir: '/css' });  
}

css = autoprefixer(css, {
  browsers: ['last 1 version']
});

if (env != 'development') {
  css = csso(css);
}

var fonts = pickFiles('src', { 
  srcDir: '/vendor/bootstrap-sass-official/assets/fonts/bootstrap', 
  destDir: '/fonts' 
});

var images = pickFiles('src/images', { 
  srcDir: '/', 
  files: ['**/*.svg', '**/*.png'], 
  destDir: '/images' 
});

images = imagemin(images, {
  interlaced: true,
  optimizationLevel: 3,
  progressive: true,
  lossyPNG: false
});

appHtml = htmlmin(appHtml);

var result = mergeTrees([js, css, fonts, /*images,*/ appHtml]);

if (env != 'development') {
  result = assetRev(result, {
    extensions: ['js', 'css', 'png', 'jpg', 'gif', 'svg', 'eot', 'ttf', 'woff'],
    replaceExtensions: ['html', 'js', 'css']
  });
}

module.exports = result;