import fs from 'fs-extra'
import path from 'path'
import { PACKAGES_DIR, readSvgs } from './helpers.mjs'
import { stringify } from 'svgson'
import prettier from 'prettier'

import bundleSize from '@atomico/rollup-plugin-sizes'
import { visualizer } from 'rollup-plugin-visualizer'
import license from 'rollup-plugin-license'
import esbuild from 'rollup-plugin-esbuild'

/**
 * Build icons
 *
 * @param name
 * @param componentTemplate
 * @param indexIconTemplate
 * @param typeDefinitionsTemplate
 * @param indexTypeTemplate
 * @param extension
 * @param pretty
 */
export const buildIcons = ({
  name,
  componentTemplate,
  indexItemTemplate,
  typeDefinitionsTemplate,
  indexTypeTemplate,
  extension = 'js',
  pretty = true,
  key = true,
  pascalCase = false
}) => {
  const DIST_DIR = path.resolve(PACKAGES_DIR, name),
      svgFiles = readSvgs()

  let index = []
  let typings = []

  svgFiles.forEach((svgFile, i) => {
    const children = svgFile.obj.children
        .map(({
          name,
          attributes
        }, i) => {
          if (key) {
            attributes.key = `svg-${i}`
          }

          if(pascalCase) {
            attributes.strokeWidth = attributes['stroke-width']
            delete attributes['stroke-width']
          }

          return [name, attributes]
        })
        .filter((i) => {
          const [name, attributes] = i
          return !attributes.d || attributes.d !== 'M0 0h24v24H0z'
        })

    // process.stdout.write(`Building ${i}/${svgFiles.length}: ${svgFile.name.padEnd(42)}\r`)

    let component = componentTemplate({
      name: svgFile.name,
      namePascal: svgFile.namePascal,
      children,
      stringify,
      svg: svgFile
    })

    const output = pretty ? prettier.format(component, {
      singleQuote: true,
      trailingComma: 'all',
      parser: 'babel'
    }) : component

    let filePath = path.resolve(DIST_DIR, 'src/icons', `${svgFile.namePascal}.${extension}`)
    fs.writeFileSync(filePath, output, 'utf-8')

    index.push(indexItemTemplate({
      name: svgFile.name,
      namePascal: svgFile.namePascal
    }))

    typings.push(indexTypeTemplate({
      name: svgFile.name,
      namePascal: svgFile.namePascal
    }))
  })

  fs.writeFileSync(path.resolve(DIST_DIR, `./src/icons.js`), index.join('\n'), 'utf-8')

  fs.ensureDirSync(path.resolve(DIST_DIR, `./dist/`))
  fs.writeFileSync(path.resolve(DIST_DIR, `./dist/tabler-${name}.d.ts`), typeDefinitionsTemplate() + '\n' + typings.join('\n'), 'utf-8')
}

export const getRollupPlugins = (pkg, minify) => {
  return [
    esbuild({
      minify
    }),
    license({
      banner: `${pkg.name} v${pkg.version} - ${pkg.license}`
    }),
    bundleSize(),
    visualizer({
      sourcemap: false,
      filename: `stats/${pkg.name}${minify ? '-min' : ''}.html`
    })
  ].filter(Boolean)
}