import * as path from 'path'
const imageminSvgo = require('../vendor/imagemin-svgo')

import imagemin from 'imagemin'
import imageminJpegtran from 'imagemin-jpegtran'
import imageminPngquant from 'imagemin-pngquant'
import type { Options as OptionsPng} from 'imagemin-pngquant'
import type { Options as OptionsJpeg } from 'imagemin-jpegtran'
import type {PluginConfig } from "svgo"

import { wrapper, TypeOnBody, TypeToolProp, TypeToolOptions } from '@asset-toolkit/core'

export interface TypeProps extends TypeToolOptions {
  jpgOptions: OptionsJpeg
  pngOptions: OptionsPng
  svgOptions: PluginConfig
  plugins: any[]
}

/**
 * A tool compress image and svg.
 * https://www.npmjs.com/package/imagemin
 *
 * @param props - { pathIn, pathOut }
 * @param options - { jpgOptions, pngOptions, svgOptions, plugins }
 * @returns { Promise(returns) }
 */
const imageCompression: (_props: TypeToolProp, options?: TypeProps) => Promise<unknown> = wrapper(
  undefined,
  ({ pathIn, pathOut, options, wrapperProps }: TypeOnBody): Promise<imagemin.Result[]> => {
    const { jpgOptions, pngOptions, svgOptions, plugins } = Object.assign(
      {
        jpgOptions: false,
        pngOptions: false,
        svgOptions: false,
        plugins: [],
      },
      options,
    )
    const exts = (wrapperProps && wrapperProps.exts) || []

    return imagemin([path.join(pathIn || pathOut, `/**/*.{${exts.join(',')}}`)], {
      destination: path.join(pathOut, '/'),
      plugins: [imageminJpegtran(jpgOptions), imageminPngquant(pngOptions), imageminSvgo(svgOptions), ...plugins],
    })
  },
  { exts: ['jpg', 'JPG', 'jpeg', 'JPEG', 'png', 'PNG', 'svg', 'SVG'], name: 'Image Compression' },
)

export default imageCompression