var glob = require('glob');
var HtmlWebpackPlugin = require('html-webpack-plugin');
var PAGE_PATH = path.resolve(__dirname, '../src/pages');
var merge = require('webpack-merge');
// 这段代码的意思是根据我们`pages`下的文件夹定义webpack的入口：
exports.entries = function () {
 var entryFiles = glob.sync(PAGE_PATH + '/*/*.js')
 var map = {}
 entryFiles.forEach((filePath) => {
   var filename = filePath.substring(filePath.lastIndexOf('\/') + 1, filePath.lastIndexOf('.'))
   map[filename] = filePath
 })
 return map
}
// 这段代码是将生成的html，加载对应的资源文件
exports.htmlPlugin = function () {
 let entryHtml = glob.sync(PAGE_PATH + '/*/*.html')
 let arr = []
 entryHtml.forEach((filePath) => {
   let filename = filePath.substring(filePath.lastIndexOf('\/') + 1, filePath.lastIndexOf('.'))
   let conf = {
     // 模板来源
     template: filePath,
     // 文件名称
     filename: filename + '.html',
     // 页面模板需要加对应的js脚本，如果不加这行则每个页面都会引入所有的js脚本
     chunks: ['manifest', 'vendor', filename],
     inject: true
   }
   if (process.env.NODE_ENV === 'production') {
     conf = merge(conf, {
       minify: {
         removeComments: true, 
         collapseWhitespace: true,
         removeAttributeQuotes: true
       },
       chunksSortMode: 'dependency'
     })
   }
   arr.push(new HtmlWebpackPlugin(conf))
 })
 return arr
}