/*
  Licensed to the Apache Software Foundation (ASF) under one
  or more contributor license agreements.  See the NOTICE file
  distributed with this work for additional information
  regarding copyright ownership.  The ASF licenses this file
  to you under the Apache License, Version 2.0 (the
  "License"); you may not use this file except in compliance
  with the License.  You may obtain a copy of the License at

      http://www.apache.org/licenses/LICENSE-2.0

  Unless required by applicable law or agreed to in writing,
  software distributed under the License is distributed on an
  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
  KIND, either express or implied.  See the License for the
  specific language governing permissions and limitations
  under the License.
*/

'use strict';
var LIVERELOAD_PORT = 35729;
var lrSnippet = require('connect-livereload')({ port: LIVERELOAD_PORT });
var mountFolder = function (connect, dir) {
  return connect.static(require('path').resolve(dir));
};

// # Globbing
// for performance reasons we're only matching one level down:
// 'test/spec/{,*/}*.js'
// use this if you want to recursively match all subfolders:
// 'test/spec/**/*.js'

module.exports = function (grunt) {
  // load all grunt tasks
  require('matchdep').filterDev('grunt-*').forEach(grunt.loadNpmTasks);

  // configurable paths
  var yeomanConfig = {
    app: 'app',
    dist: 'dist'
  };

  try {
    yeomanConfig.app = require('./bower.json').appPath || yeomanConfig.app;
  } catch (e) {}

  grunt.initConfig({
    yeoman: yeomanConfig,
    watch: {
      coffee: {
        files: ['<%= yeoman.app %>/scripts/{,*/}*.coffee'],
        tasks: ['coffee:dist']
      },
      coffeeTest: {
        files: ['test/spec/{,*/}*.coffee'],
        tasks: ['coffee:test']
      },
      compass: {
        files: ['<%= yeoman.app %>/styles/{,*/}*.{scss,sass}'],
        tasks: ['compass:server']
      },
      livereload: {
        options: {
          livereload: LIVERELOAD_PORT
        },
        files: [
          '<%= yeoman.app %>/{,*/}*.html',
          '{.tmp,<%= yeoman.app %>}/styles/{,*/}*.css',
          '{.tmp,<%= yeoman.app %>}/scripts/{,*/}*.js',
          '<%= yeoman.app %>/images/{,*/}*.{png,jpg,jpeg,gif,webp,svg}'
        ]
      }
    },
    connect: {
      options: {
        port: 9000,
        // Change this to '0.0.0.0' to access the server from outside.
        hostname: 'localhost'
      },
      livereload: {
        options: {
          middleware: function (connect) {
            return [
              lrSnippet,
              mountFolder(connect, '.tmp'),
              mountFolder(connect, yeomanConfig.app)
            ];
          }
        }
      },
      test: {
        options: {
          middleware: function (connect) {
            return [
              mountFolder(connect, '.tmp'),
              mountFolder(connect, 'test')
            ];
          }
        }
      },
      dist: {
        options: {
          middleware: function (connect) {
            return [
              mountFolder(connect, yeomanConfig.dist)
            ];
          }
        }
      }
    },
    open: {
      server: {
        url: 'http://localhost:<%= connect.options.port %>'
      }
    },
    clean: {
      dist: {
        files: [{
          dot: true,
          src: [
            '.tmp',
            '<%= yeoman.dist %>/*',
            '!<%= yeoman.dist %>/.git*'
          ]
        }]
      },
      server: '.tmp'
    },
    jshint: {
      options: {
        jshintrc: '.jshintrc'
      },
      all: [
        'Gruntfile.js',
        '<%= yeoman.app %>/scripts/{,*/}*.js'
      ]
    },
    coffee: {
      dist: {
        files: [{
          expand: true,
          cwd: '<%= yeoman.app %>/scripts',
          src: '{,*/}*.coffee',
          dest: '.tmp/scripts',
          ext: '.js'
        }]
      },
      test: {
        files: [{
          expand: true,
          cwd: 'test/spec',
          src: '{,*/}*.coffee',
          dest: '.tmp/spec',
          ext: '.js'
        }]
      }
    },
    compass: {
      options: {
        sassDir: '<%= yeoman.app %>/styles',
        cssDir: '.tmp/styles',
        generatedImagesDir: '.tmp/images/generated',
        imagesDir: '<%= yeoman.app %>/images',
        javascriptsDir: '<%= yeoman.app %>/scripts',
        fontsDir: '<%= yeoman.app %>/styles/fonts',
        importPath: '<%= yeoman.app %>/bower_components',
        httpImagesPath: '/images',
        httpGeneratedImagesPath: '/images/generated',
        httpFontsPath: '/styles/fonts',
        relativeAssets: false
      },
      dist: {},
      server: {
        options: {
          debugInfo: true
        }
      }
    },
    // not used since Uglify task does concat,
    // but still available if needed
    /*concat: {
      dist: {}
    },*/
    rev: {
      dist: {
        files: {
          src: [
            '<%= yeoman.dist %>/scripts/{,*/}*.js',
            '<%= yeoman.dist %>/styles/{,*/}*.css',
            '<%= yeoman.dist %>/images/{,*/}*.{png,jpg,jpeg,gif,webp,svg}',
            '<%= yeoman.dist %>/styles/fonts/*'
          ]
        }
      }
    },
    useminPrepare: {
      html: '<%= yeoman.app %>/index.html',
      options: {
        dest: '<%= yeoman.dist %>'
      }
    },
    usemin: {
      html: ['<%= yeoman.dist %>/{,*/}*.html'],
      css: ['<%= yeoman.dist %>/styles/{,*/}*.css'],
      options: {
        dirs: ['<%= yeoman.dist %>']
      }
    },
    imagemin: {
      dist: {
        files: [{
          expand: true,
          cwd: '<%= yeoman.app %>/images',
          src: '{,*/}*.{png,jpg,jpeg}',
          dest: '<%= yeoman.dist %>/images'
        }]
      }
    },
    cssmin: {
      // By default, your `index.html` <!-- Usemin Block --> will take care of
      // minification. This option is pre-configured if you do not wish to use
      // Usemin blocks.
      // dist: {
      //   files: {
      //     '<%= yeoman.dist %>/styles/main.css': [
      //       '.tmp/styles/{,*/}*.css',
      //       '<%= yeoman.app %>/styles/{,*/}*.css'
      //     ]
      //   }
      // }
    },
    htmlmin: {
      dist: {
        options: {
          /*removeCommentsFromCDATA: true,
          // https://github.com/yeoman/grunt-usemin/issues/44
          //collapseWhitespace: true,
          collapseBooleanAttributes: true,
          removeAttributeQuotes: true,
          removeRedundantAttributes: true,
          useShortDoctype: true,
          removeEmptyAttributes: true,
          removeOptionalTags: true*/
        },
        files: [{
          expand: true,
          cwd: '<%= yeoman.app %>',
          src: ['*.html', 'views/*.html'],
          dest: '<%= yeoman.dist %>'
        }]
      }
    },
    // Put files not handled in other tasks here
    copy: {
      dist: {
        files: [{
          expand: true,
          dot: true,
          cwd: '<%= yeoman.app %>',
          dest: '<%= yeoman.dist %>',
          src: [
            '*.{ico,png,txt,md}',
            '.htaccess',
            'bower_components/**/*',
            'images/{,*/}*.{gif,webp,svg}',
            'styles/fonts/*'
          ]
        }, {
          expand: true,
          cwd: '.tmp/images',
          dest: '<%= yeoman.dist %>/images',
          src: [
            'generated/*'
          ]
        }]
      }
    },
    concurrent: {
      server: [
        'coffee:dist',
        'compass:server'
      ],
      test: [
        'coffee',
        'compass'
      ],
      dist: [
        'coffee',
        'compass:dist',
        'imagemin',
        'htmlmin'
      ]
    },
    karma: {
      unit: {
        configFile: 'karma.conf.js',
        singleRun: true
      }
    },
    cdnify: {
      dist: {
        html: ['<%= yeoman.dist %>/*.html']
      }
    },
    ngmin: {
      dist: {
        files: [{
          expand: true,
          cwd: '<%= yeoman.dist %>/scripts',
          src: '*.js',
          dest: '<%= yeoman.dist %>/scripts'
        }]
      }
    },
    uglify: {
      dist: {
        files: {
          '<%= yeoman.dist %>/scripts/scripts.js': [
            '<%= yeoman.dist %>/scripts/scripts.js'
          ]
        }
      }
    }
  });

  grunt.registerTask('server', function (target) {
    if (target === 'dist') {
      return grunt.task.run(['build', 'open', 'connect:dist:keepalive']);
    }

    grunt.task.run([
      'clean:server',
      'concurrent:server',
      'connect:livereload',
      'open',
      'watch'
    ]);
  });

  grunt.registerTask('test', [
    'clean:server',
    'concurrent:test',
    'connect:test',
    'karma'
  ]);

  grunt.registerTask('build', [
    'clean:dist',
    'useminPrepare',
    'concurrent:dist',
    'concat',
    'copy',
    'cdnify',
    'ngmin',
    'cssmin',
    'uglify',
    'rev',
    'usemin'
  ]);

  grunt.registerTask('default', [
    'jshint',
    'test',
    'build'
  ]);
};