// postcss 8:
require('postcss-rem-to-responsive-pixel')
// postcss 7:
require('postcss-rem-to-responsive-pixel/postcss7')

// 基础配置，无需任何preset
// https://github.com/sonofmagic/weapp-tailwindcss-webpack-plugin/blob/main/demo/uni-app/tailwind.config.js
/** @type {import('@types/tailwindcss/tailwind-config').TailwindConfig} */
module.exports = {
  mode: 'jit',
  purge: {
    content: ['./src/**/*.{vue,js,ts,jsx,tsx,wxml}']
  },
  darkMode: false, // or 'media' or 'class'
  theme: {
    extend: {}
  },
  variants: {},
  plugins: [],
  corePlugins: {
    preflight: false
  }
}

// 参考示例
// https://github.com/sonofmagic/weapp-tailwindcss-webpack-plugin/blob/main/demo/uni-app/postcss.config.js
const path = require('path')
module.exports = {
  parser: require('postcss-comment'),
  plugins: [
    require('postcss-import')({
      resolve(id, basedir, importOptions) {
        if (id.startsWith('~@/')) {
          return path.resolve(process.env.UNI_INPUT_DIR, id.substr(3))
        } else if (id.startsWith('@/')) {
          return path.resolve(process.env.UNI_INPUT_DIR, id.substr(2))
        } else if (id.startsWith('/') && !id.startsWith('//')) {
          return path.resolve(process.env.UNI_INPUT_DIR, id.substr(1))
        }
        return id
      }
    }),
    require('autoprefixer')({
      remove: process.env.UNI_PLATFORM !== 'h5'
    }),
    // tailwindcss for postcss7
    require('tailwindcss')({ config: './tailwind.config.js' }),
    // rem 转 rpx
    require('postcss-rem-to-responsive-pixel/postcss7')({
      rootValue: 32,
      propList: ['*'],
      transformUnit: 'rpx'
    }),
    require('@dcloudio/vue-cli-plugin-uni/packages/postcss')
  ]
}

// vue.config.js
const {
  UniAppWeappTailwindcssWebpackPluginV4
} = require('weapp-tailwindcss-webpack-plugin')

/**
 * @type {import('@vue/cli-service').ProjectOptions}
 */
const config = {
  //....
  configureWebpack: {
    plugins: [new UniAppWeappTailwindcssWebpackPluginV4()]
  }
  //....
}

module.exports = config

const {
  TaroWeappTailwindcssWebpackPluginV4
} = require('weapp-tailwindcss-webpack-plugin')

const config = {
  // ...
  mini: {
    webpackChain(chain, webpack) {
      chain.merge({
        plugin: {
          install: {
            plugin: TaroWeappTailwindcssWebpackPluginV4,
            args: [
              {
                // ...
              }
            ]
          }
        }
      })
    }
  }
}

// postcss.config.js
module.exports = {
  plugins: {
    tailwindcss: {},
    autoprefixer: {}
  }
}

// tailwind.config.js
module.exports = {
  content: ['./src/**/*.{html,js,ts,jsx,tsx}'],
  theme: {
    extend: {}
  },
  plugins: [],
  // v3 版本的 tailwindcss 有些不同
  corePlugins: {
    preflight: false
  }
}