module.exports = function(grunt) {
  // Project configuration.
  grunt.initConfig({
    pkg: grunt.file.readJSON('package.json'),
    uglify: {
      options: {
        banner: '/*! <%= pkg.name %> <%= pkg.version %> */\n'
      },
      'ng-flow': {
        src: ['dist/ng-flow.js'],
        dest: 'dist/ng-flow.min.js'
      },
      'ng-flow-standalone': {
        src: ['dist/ng-flow-standalone.js'],
        dest: 'dist/ng-flow-standalone.min.js'
      }
    },
    concat: {
      flow: {
        files: {
          'dist/ng-flow.js': [
            'src/provider.js',
            'src/directives/init.js',
            'src/directives/*.js',
            'src/*.js'
          ],
          'dist/ng-flow-standalone.js': [
            'bower_components/flow.js/dist/flow.js',
            'src/provider.js',
            'src/directives/init.js',
            'src/directives/*.js',
            'src/*.js'
          ]
        }
      }
    },
    karma: {
      options: {
        configFile: 'karma.conf.js'
      },
      continuous: {
        singleRun: true
      },
      coverage: {
        singleRun: true,
        browsers: ['Firefox'],
        reporters: ['progress', 'coverage'],
        preprocessors: {
          'src/**/*.js': 'coverage'
        },
        coverageReporter: {
          type: "lcov",
          dir: "coverage"
        }
      },
      saucelabs: {
        singleRun: true,
        reporters: ['progress', 'saucelabs'],
        preprocessors: {
          'src/**/*.js': 'coverage'
        },
        coverageReporter: {
          type: "lcov",
          dir: "coverage"
        },
        // global config for SauceLabs
        sauceLabs: {
          testName: 'ng-flow',
          username: grunt.option('sauce-username') || process.env.SAUCE_USERNAME,
          accessKey: grunt.option('sauce-access-key') || process.env.SAUCE_ACCESS_KEY,
          tunnelIdentifier: process.env.TRAVIS_JOB_NUMBER,
          startConnect: false
        }
      }
    },
    clean: {
      release: ["dist/ng*"]
    },
    bump: {
      options: {
        files: ['package.json', 'bower.json'],
        updateConfigs: ['pkg'],
        commit: true,
        commitMessage: 'Release v%VERSION%',
        commitFiles: ['-a'], // '-a' for all files
        createTag: true,
        tagName: 'v%VERSION%',
        tagMessage: 'Version %VERSION%',
        push: true,
        pushTo: 'origin',
        gitDescribeOptions: '--tags --always --abbrev=1 --dirty=-d' // options to use with '$ git describe'
      }
    }
  });

  // Loading dependencies
  for (var key in grunt.file.readJSON("package.json").devDependencies) {
    if (key !== "grunt" && key.indexOf("grunt") === 0) grunt.loadNpmTasks(key);
  }

  // Default task.
  grunt.registerTask('default', ['test']);

  // Release tasks
  grunt.registerTask('build', ['concat', 'uglify']);
  grunt.registerTask('release', function(type) {
    type = type ? type : 'patch';
    grunt.task.run('bump-only:' + type);
    grunt.task.run('clean', 'build');
    grunt.task.run('bump-commit');
  });

  // Development
  grunt.registerTask('test', ["karma:coverage"]);
};