#!/usr/bin/env node
import fs from 'fs'
import path from 'path'
import walk from 'walk-sync'
import frontmatter from '../lib/read-frontmatter.js'

const contentPath = path.join(process.cwd(), 'content')
const dataPath = path.join(process.cwd(), 'data')

const contentFiles = walk(contentPath, { includeBasePath: true, directories: false })
  .filter((file) => file.endsWith('.md'))
  .filter((file) => !file.endsWith('README.md'))

const dataFiles = walk(dataPath, { includeBasePath: true, directories: false })
  .filter((file) => file.includes('data/reusables') || file.includes('data/variables'))
  .filter((file) => !file.endsWith('README.md'))

dataFiles.forEach((file) => {
  const content = fs.readFileSync(file, 'utf8')

  // Update Liquid in data files
  const newContent = updateLiquid(content)

  fs.writeFileSync(file, newContent)
})

contentFiles.forEach((file) => {
  const { data, content } = frontmatter(fs.readFileSync(file, 'utf8'))

  // Update Liquid in content files
  const newContent = content ? updateLiquid(content) : ''

  // Update versions frontmatter
  if (data) {
    if (!data.versions && data.productVersions) {
      data.versions = data.productVersions
      Object.keys(data.versions).forEach((version) => {
        // update dotcom, actions, rest, etc.
        if (version !== 'enterprise') {
          data.versions['free-pro-team'] = data.versions[version]
          delete data.versions[version]
        } else {
          data.versions['enterprise-server'] = data.versions.enterprise
          delete data.versions.enterprise
        }
      })
    }

    delete data.productVersions

    // Update Liquid in frontmatter props
    Object.keys(data)
      // Only process a subset of props
      .filter((key) => key === 'title' || key === 'intro' || key === 'product')
      .forEach((key) => {
        data[key] = updateLiquid(data[key])
      })
  }

  fs.writeFileSync(file, frontmatter.stringify(newContent, data, { lineWidth: 10000 }))
})

function updateLiquid(content) {
  return content
    .replace(/page.version/g, 'currentVersion')
    .replace(/["'](?:')?dotcom["'](?:')?/g, '"free-pro-team@latest"')
    .replace(/["'](?:')?(2\.\d{2})["'](?:')?/g, '"enterprise-server@$1"')
}