const CopyWebpackPlugin = require('copy-webpack-plugin')
const webpack = require('webpack')
const cesiumSource = 'node_modules/cesium/Source'
const cesiumWorkers = '../Build/Cesium/Workers'
const path = require("path");

function resolve(dir) {
    return path.join(__dirname, dir);
}
module.exports = {
    publicPath: './', // 基本路径
    outputDir: 'dist', // 构建时的输出目录
    assetsDir: 'static', // 放置静态资源的目录
    indexPath: 'index.html', // html 的输出路径
    filenameHashing: true, // 文件名哈希值
    lintOnSave: false, // 是否在保存的时候使用 `eslint-loader` 进行检查。

    // 组件是如何被渲染到页面中的？ （ast：抽象语法树；vDom：虚拟DOM）
    // template ---> ast ---> render ---> vDom ---> 真实的Dom ---> 页面
    // runtime-only：将template在打包的时候，就已经编译为render函数
    // runtime-compiler：在运行的时候才去编译template
    runtimeCompiler: false,

    transpileDependencies: [], // babel-loader 默认会跳过 node_modules 依赖。
    productionSourceMap: false, // 是否为生产环境构建生成 source map

    configureWebpack: {
        plugins: [
            new CopyWebpackPlugin([{ from: path.join(cesiumSource, cesiumWorkers), to: 'Workers' }]),
            new CopyWebpackPlugin([{ from: path.join(cesiumSource, 'Assets'), to: 'Assets' }]),
            new CopyWebpackPlugin([{ from: path.join(cesiumSource, 'Widgets'), to: 'Widgets' }]),
            new CopyWebpackPlugin([{ from: path.join(cesiumSource, 'ThirdParty/Workers'), to: 'ThirdParty/Workers' }]),

            new webpack.DefinePlugin({
                CESIUM_BASE_URL: JSON.stringify('./')
            })
        ],
        module: {
            unknownContextCritical: false,
            unknownContextRegExp: /\/cesium\/cesium\/Source\/Core\/buildModuleUrl\.js/
        },
        // 配置cesium----开始
        amd: {
            toUrlUndefined: true
        },
        output: {
            sourcePrefix: ' '
          }
         },
        devServer: {
          proxy: {
            '/socket.io':{
              target: 'http://192.168.1.6:1234', // target host
              changeOrigin: true, // needed for virtual hosted sites
              logLevel: 'debug'
            },
            '/sockjs-node': {
              target: 'http://192.168.1.6:1234',
              ws: true,
              changeOrigin: true
            },
        '/api': {
          target: 'http://localhost:80',
          ws: true,
          changeOrigin: true,
          // pathRewrite:{
          //   "^/geoserver":""
          // } 
        }
    }
    },

    chainWebpack: config => {
        config.resolve.alias
            .set("@", resolve("src"))
            .set("assets", resolve("src/assets"))
            .set("components", resolve("src/components"))
            .set("public", resolve("public"))
            .set("cesium", path.resolve(__dirname, cesiumSource))
            // set svg-sprite-loader
        config.module
            .rule('svg')
            .exclude.add(resolve('src/assets')) // 存放 svg 目录的目录
            .end()
        config.module
            .rule('assets')
            .test(/\.svg$/)
            .include.add(resolve('src/assets')) // 存放 svg 目录的目录
            .end()
            .use('svg-sprite-loader')
            .loader('svg-sprite-loader')
            .options({
                symbolId: 'icon-[name]'
            })
            .end()
        config.module
            .rule('glb')
            .test(/\.glb$/)
            .use('url-loader')
            .loader('url-loader')
            .end();
    }
}