const { defineConfig } = require('@vue/cli-service')
//配置@为src的别名
const path = require('path')
function resolve(dir){
  return path.join(__dirname,dir)
}

// 配置cesium资源文件
const CopyWebpackPlugin = require('copy-webpack-plugin')
const webpack = require('webpack')
let cesiumSource = './node_modules/cesium/Source'
let cesiumWorkers = '../Build/Cesium/Workers'

module.exports = defineConfig({
  transpileDependencies: true,
  lintOnSave:false,
  chainWebpack:(config)=>{
    config.resolve.alias
      .set("@",resolve('src'))
  },
  configureWebpack:{
    plugins: [
      new CopyWebpackPlugin({patterns:[{ from: path.join(cesiumSource, cesiumWorkers), to: 'Workers' }]}),
      new CopyWebpackPlugin({patterns:[{ from: path.join(cesiumSource, 'Assets'), to: 'Assets' }]}),
      new CopyWebpackPlugin({patterns:[{ from: path.join(cesiumSource, 'Widgets'), to: 'Widgets' }]}),
      new CopyWebpackPlugin({patterns:[{ from: path.join(cesiumSource, 'ThirdParty/Workers'), to: 'ThirdParty/Workers' }]}),
      new webpack.DefinePlugin({
        CESIUM_BASE_URL: JSON.stringify('./')
      })
    ],
  }
  
})