text: /* global module:false */
  module.exports = function(grunt) {
      var port = grunt.option('port') || 8000;
      // Project configuration
      grunt.initConfig({
          pkg: grunt.file.readJSON('package.json'),
          meta: {
              banner:
              '/*!\n' +
              ' * reveal.js <%= pkg.version %> (<%= grunt.template.today("yyyy-mm-dd, HH:MM") %>)\n' +
              ' * http://lab.hakim.se/reveal-js\n' +
              ' * MIT licensed\n' +
              ' *\n' +
              ' * Copyright (C) 2015 Hakim El Hattab, http://hakim.se\n' +
              ' */'
          },
  
          qunit: {
              files: [ 'test/*.html' ]
          },
  
          uglify: {
              options: {
                  banner: '<%= meta.banner %>\n'
              },
              build: {
                  src: 'js/reveal.js',
                  dest: 'js/reveal.min.js'
              }
          },
  
          sass: {
              core: {
                  files: {
                      'css/reveal.css': 'css/reveal.scss',
                  }
              },
              themes: {
                  files: {
                      'css/theme/black.css': 'css/theme/source/black.scss',
                      'css/theme/white.css': 'css/theme/source/white.scss',
                      'css/theme/league.css': 'css/theme/source/league.scss',
                      'css/theme/beige.css': 'css/theme/source/beige.scss',
                      'css/theme/night.css': 'css/theme/source/night.scss',
                      'css/theme/serif.css': 'css/theme/source/serif.scss',
                      'css/theme/simple.css': 'css/theme/source/simple.scss',
                      'css/theme/sky.css': 'css/theme/source/sky.scss',
                      'css/theme/moon.css': 'css/theme/source/moon.scss',
                      'css/theme/solarized.css': 'css/theme/source/solarized.scss',
                      'css/theme/blood.css': 'css/theme/source/blood.scss'
                  }
              }
          },
  
          autoprefixer: {
              dist: {
                  src: 'css/reveal.css'
              }
          },
  
          cssmin: {
              compress: {
                  files: {
                      'css/reveal.min.css': [ 'css/reveal.css' ]
                  }
              }
          },
  
          jshint: {
              options: {
                  curly: false,
                  eqeqeq: true,
                  immed: true,
                  latedef: true,
                  newcap: true,
                  noarg: true,
                  sub: true,
                  undef: true,
                  eqnull: true,
                  browser: true,
                  expr: true,
                  globals: {
                      head: false,
                      module: false,
                      console: false,
                      unescape: false,
                      define: false,
                      exports: false
                  }
              },
              files: [ 'Gruntfile.js', 'js/reveal.js' ]
          },
  
          connect: {
              server: {
                  options: {
                      port: port,
                      base: '.',
                      livereload: true,
                      open: true
                  }
              }
          },
  
          zip: {
              'reveal-js-presentation.zip': [
                  'index.html',
                  'hr/**',
                  'css/**',
                  'js/**',
                  'lib/**',
                  'images/**',
                  'plugin/**'
              ]
          },
  
          watch: {
              options: {
                  livereload: true
              },
              js: {
                  files: [ 'Gruntfile.js', 'js/reveal.js' ],
                  tasks: 'js'
              },
              theme: {
                  files: [ 'css/theme/source/*.scss', 'css/theme/template/*.scss' ],
                  tasks: 'css-themes'
              },
              css: {
                  files: [ 'css/reveal.scss' ],
                  tasks: 'css-core'
              },
              html: {
                  files: [ 'index.html']
              }
          }
  
      });
  
      // Dependencies
      grunt.loadNpmTasks( 'grunt-contrib-qunit' );
      grunt.loadNpmTasks( 'grunt-contrib-jshint' );
      grunt.loadNpmTasks( 'grunt-contrib-cssmin' );
      grunt.loadNpmTasks( 'grunt-contrib-uglify' );
      grunt.loadNpmTasks( 'grunt-contrib-watch' );
      grunt.loadNpmTasks( 'grunt-sass' );
      grunt.loadNpmTasks( 'grunt-contrib-connect' );
      grunt.loadNpmTasks( 'grunt-autoprefixer' );
      grunt.loadNpmTasks( 'grunt-zip' );
  
      // Default task
      grunt.registerTask( 'default', [ 'css', 'js' ] );
  
      // JS task
      grunt.registerTask( 'js', [ 'jshint', 'uglify', 'qunit' ] );
  
      // Theme CSS
      grunt.registerTask( 'css-themes', [ 'sass:themes' ] );
  
      // Core framework CSS
      grunt.registerTask( 'css-core', [ 'sass:core', 'autoprefixer', 'cssmin' ] );
  
      // All CSS
      grunt.registerTask( 'css', [ 'sass', 'autoprefixer', 'cssmin' ] );
  
      // Package presentation to archive
      grunt.registerTask( 'package', [ 'default', 'zip' ] );
  
      // Serve presentation locally
      grunt.registerTask( 'serve', [ 'connect', 'watch' ] );
  
      // Run tests
      grunt.registerTask( 'test', [ 'jshint', 'qunit' ] );
  
  };
  