var path = require("path");

var underscore = require("underscore");
var webpack = require("webpack");

var defs = require("./package.defs.js");

var devWebpackConfig = require("./webpack.config.js");
var distWebpackConfig = underscore.extend(
  underscore.clone(devWebpackConfig),
  {
    devtool: false,
    output: {
      path: defs.LIB_DIR,
      filename: defs.FILENAME_DIST,
      library: defs.LIBRARY_NAME,
      libraryTarget: "umd",
      umdNamedDefine: true
    },
    plugins: [
      new webpack.optimize.UglifyJsPlugin({compress: false})
    ]
  }
);

module.exports = function (grunt) {
  grunt.loadNpmTasks("grunt-contrib-clean");
  grunt.loadNpmTasks("grunt-karma");
  grunt.loadNpmTasks("grunt-webpack");
  grunt.loadNpmTasks("gruntify-eslint");

  grunt.initConfig({
    clean: {
      options: {
        force: true,
      },
      all: [defs.LIB_DIR]
    },
    eslint: {
      sources: {
        src: ["./src/**/*.js"]
      },
      tests: {
        src: ["./tests/**/*.spec.js"]
      }
    },
    karma: {
      options: {
        configFile: "karma.conf.js"
      },
      dist: {
        browsers: ["ChromiumHeadless"],
        reporters: ["progress"],
        singleRun: true,
        webpackMiddleware: {
          noInfo: true,
          stats: "errors-only"
        }
      },
      dev: {
        browsers: ["ChromiumHeadless"],
        mochaReporter: {
          ignoreSkipped: false
        },
        reporters: ["mocha"],
        singleRun: true
      }
    },
    webpack: {
      dev: devWebpackConfig,
      dist: distWebpackConfig
    }
  });

  grunt.registerTask("dist", [
    "clean", "eslint", "karma:dist", "webpack"
  ]);
};