const {
  getPlatformCssnano
} = require('@dcloudio/uni-cli-shared')
const webpack = require('webpack')

module.exports = function initCssnanoOptions (webpackConfig) {
  const module = webpackConfig.module
  // TODO 临时 hack calc:false 看看 vue cli 后续是否开放 cssnano 的配置
  const cssnanoOptions = {
    sourceMap: false
  }

  const plugins = [require('cssnano')({
    preset: ['default', getPlatformCssnano()]
  })]

  // TODO postcss-loader version > 4
  if (webpack.version[0] > 4) {
    cssnanoOptions.postcssOptions = { plugins }
  } else {
    cssnanoOptions.plugins = plugins
  }

  module.rule('css').oneOf('vue-modules').use('cssnano').loader('postcss-loader').options(cssnanoOptions)
  module.rule('css').oneOf('vue').use('cssnano').loader('postcss-loader').options(cssnanoOptions)
  module.rule('css').oneOf('normal-modules').use('cssnano').loader('postcss-loader').options(
    cssnanoOptions)
  module.rule('css').oneOf('normal').use('cssnano').loader('postcss-loader').options(cssnanoOptions)

  module.rule('postcss').oneOf('vue-modules').use('cssnano').loader('postcss-loader').options(
    cssnanoOptions)
  module.rule('postcss').oneOf('vue').use('cssnano').loader('postcss-loader').options(cssnanoOptions)
  module.rule('postcss').oneOf('normal-modules').use('cssnano').loader('postcss-loader').options(
    cssnanoOptions)
  module.rule('postcss').oneOf('normal').use('cssnano').loader('postcss-loader').options(cssnanoOptions)

  module.rule('scss').oneOf('vue-modules').use('cssnano').loader('postcss-loader').options(cssnanoOptions)
  module.rule('scss').oneOf('vue').use('cssnano').loader('postcss-loader').options(cssnanoOptions)
  module.rule('scss').oneOf('normal-modules').use('cssnano').loader('postcss-loader').options(
    cssnanoOptions)
  module.rule('scss').oneOf('normal').use('cssnano').loader('postcss-loader').options(cssnanoOptions)

  module.rule('sass').oneOf('vue-modules').use('cssnano').loader('postcss-loader').options(cssnanoOptions)
  module.rule('sass').oneOf('vue').use('cssnano').loader('postcss-loader').options(cssnanoOptions)
  module.rule('sass').oneOf('normal-modules').use('cssnano').loader('postcss-loader').options(
    cssnanoOptions)
  module.rule('sass').oneOf('normal').use('cssnano').loader('postcss-loader').options(cssnanoOptions)

  module.rule('less').oneOf('vue-modules').use('cssnano').loader('postcss-loader').options(cssnanoOptions)
  module.rule('less').oneOf('vue').use('cssnano').loader('postcss-loader').options(cssnanoOptions)
  module.rule('less').oneOf('normal-modules').use('cssnano').loader('postcss-loader').options(
    cssnanoOptions)
  module.rule('less').oneOf('normal').use('cssnano').loader('postcss-loader').options(cssnanoOptions)

  module.rule('stylus').oneOf('vue-modules').use('cssnano').loader('postcss-loader').options(
    cssnanoOptions)
  module.rule('stylus').oneOf('vue').use('cssnano').loader('postcss-loader').options(cssnanoOptions)
  module.rule('stylus').oneOf('normal-modules').use('cssnano').loader('postcss-loader').options(
    cssnanoOptions)
  module.rule('stylus').oneOf('normal').use('cssnano').loader('postcss-loader').options(cssnanoOptions)
}