/* @flow */
"use strict"
const _ = require("lodash")
const createStylelint = require("./createStylelint")
const postcss = require("postcss")
const path = require("path")

module.exports = postcss.plugin("stylelint", function (options) {
  options = options || {}

  const tailoredOptions/*: Object*/ = options.rules
    ? { config: options }
    : options
  const stylelint = createStylelint(tailoredOptions)

  return (root, result) => {
    let filePath = options.from || _.get(root, "source.input.file")
    if (filePath !== undefined && !path.isAbsolute(filePath)) {
      filePath = path.join(process.cwd(), filePath)
    }

    return stylelint._lintSource({
      filePath,
      existingPostcssResult: result,
    })
  }
})