var path = require('path')
var config = require('../config')
var utils = require('./utils')
var projectRoot = path.resolve(__dirname, '../')

var env = process.env.NODE_ENV
    // check env & config/index.js to decide weither to enable CSS Sourcemaps for the
    // various preprocessor loaders added to vue-loader at the end of this file
var cssSourceMapDev = (env === 'development' && config.dev.cssSourceMap)
var cssSourceMapProd = (env === 'production' && config.build.productionSourceMap)
var useCssSourceMap = cssSourceMapDev || cssSourceMapProd


module.exports = {
    entry: {
        app: './src/main.js'
    },
    output: {
        path: config.build.assetsRoot,
        publicPath: process.env.NODE_ENV === 'production' ? config.build.assetsPublicPath : config.dev.assetsPublicPath,
        filename: '[name].js'
    },
    resolve: {
        extensions: ['', '.js', '.vue', '.less', '.css', '.scss'],
        fallback: [path.join(__dirname, '../node_modules')],
        alias: {
            'vue$': 'vue/dist/vue.common.js',
            'src': path.resolve(__dirname, '../src'),
            'assets': path.resolve(__dirname, '../src/assets'),
            'components': path.resolve(__dirname, '../src/components'),
            '@': path.resolve('src')
        }
    },
    resolveLoader: {
        fallback: [path.join(__dirname, '../node_modules')]
    },
    module: {
        loaders: [{
            test: /\.vue$/,
            loader: 'vue'
        }, {
            test: /\.js$/,
            loader: 'babel-loader',
            include: projectRoot,
            exclude: /node_modules/
        }, {
            test: /\.json$/,
            loader: 'json'
        }, {
            test: /\.(png|jpe?g|gif|svg)(\?.*)?$/,
            loader: 'url',
            query: {
                limit: 10000,
                name: utils.assetsPath('img/[name].[ext]')
            }
        }, {
            test: /\.(woff2?|eot|ttf|otf)(\?.*)?$/,
            loader: 'url',
            query: {
                limit: 10000,
                name: utils.assetsPath('fonts/[name].[hash:7].[ext]')
            }
        }]
    },
    vue: {
        loaders: utils.cssLoaders({
            sourceMap: useCssSourceMap
        }),
        postcss: [
            require('autoprefixer')({
                browsers: ['last 10 versions']
            }),
            require('postcss-pxtorem')({
                rootValue: 37.5,
                unitPrecision: 5,
                propWhiteList: [],
                selectorBlackList: [/^html$/],
                replace: true,
                mediaQuery: false,
                minPixelValue: 2
            })
        ]
    }
}
