const fs = require('fs')
const path = require('path')
const core = require('../packages/core/dist')
const theme = require('../plugins/plugin-theme/dist')
const pi = require('../packages/pattern-info/dist')
const models = require('../packages/models/dist')
const wb32 = models.withBreasts.size32
const i18n = require('../packages/i18n/dist')
let { capitalize } = require('../packages/core/src/utils.mjs')

const missing = []
const lacking = []
const extra = []
const file = 'en.md'
const subpages = ['cutting', 'fabric', 'instructions', 'options', 'measurements', 'needs']

const patternDocsPage = (pattern) => `---
title: "Fixme"
---

<PatternDocs pattern='${pattern}' />

`
const fixme = `---
title: "Fixme"
---

<Fixme>

This documentation page is yet to be written.

Sorry for the inconvenience.

</Fixme>
`

const component = (comp, pattern) => `---
title: "Fixme"
---

<Pattern${capitalize(comp)} pattern='${pattern}' />

`

const patternDocsSubPage = (pattern, sub) => {
  switch (sub) {
    case 'measurements':
    case 'options':
      return component(sub, pattern)
      break
    default:
      return fixme
  }
}

const optionDocsPage = (pattern, option) =>
  `---
title: ` +
  i18n.strings.en[`options.${pattern}.${option}.title`] +
  '\n---\n\n' +
  i18n.strings.en[`options.${pattern}.${option}.description`] +
  '\n'

const present = (folder) => {
  try {
    if (fs.readFileSync(path.join(folder, file))) return true
  } catch (err) {
    return false
  }

  return false
}

const getSubFolders = (folder) =>
  fs
    .readdirSync(folder, { withFileTypes: true })
    .filter((dirent) => dirent.isDirectory())
    .map((dirent) => dirent.name)

const checkOptionDocs = () => {
  const steps = ['markdown', 'org', 'docs', 'patterns']
  for (const pattern of pi.list) {
    // Index page
    const folder = path.join(...steps, pattern)
    const subFolders = getSubFolders(folder)
    for (const page of subpages) {
      if (subFolders.indexOf(page) === -1) lacking.push(path.join(folder, page))
    }
    for (const sub of subFolders) {
      if (subpages.indexOf(sub) === -1) extra.push(path.join(folder, sub))
    }
    if (!present(folder)) {
      fs.mkdirSync(folder, { recursive: true })
      fs.writeFileSync(path.join(folder, file), patternDocsPage(pattern))
    }
    // Sub pages
    for (const sub of subpages) {
      const folder = path.join(...steps, pattern, sub)
      if (!present(folder)) {
        fs.mkdirSync(folder, { recursive: true })
        fs.writeFileSync(path.join(folder, file), patternDocsSubPage(pattern, sub))
      }
    }

    // Options
    let optionFolders = getSubFolders(path.join(...steps, pattern, 'options'))
    for (const option of pi.options[pattern]) {
      // Remove this from the folder list
      const i = optionFolders.indexOf(option.toLowerCase())
      optionFolders.splice(i, 1)
      const folder = path.join(...steps, pattern, 'options', option.toLowerCase())
      if (!present(folder)) {
        missing.push(path.join(folder, file))
        fs.mkdirSync(folder, { recursive: true })
        fs.writeFileSync(path.join(folder, file), optionDocsPage(pattern, option))
      }
    }
    // Now check for extra folders
    for (const subfolder of optionFolders) {
      extra.push(path.join(...steps, pattern, 'options', subfolder))
    }
  }

  if (missing.length < 1 && extra.length < 1 && lacking.length < 1) {
    console.log('\n  🎉 Everything looks fine 😀\n')
  } else {
    if (missing.length > 0) {
      console.log('\n', 'Added documenation pages for the following options:', '\n\n')
      for (const line of missing) console.log(line)
    }
    if (extra.length > 0) {
      console.log('\n', 'Found extra folders that should not be there:', '\n\n')
      for (const line of extra) console.log(line)
    }
  }
}

checkOptionDocs()