import fg from 'fast-glob'
import fs from 'fs-extra'
import yaml from 'js-yaml'
import rimraf from 'rimraf'

import { Database, IMatter } from '../server/db'
import { THEME_FILENAME } from '../server/theme'
import { builtPath, dstMediaPath, srcPath } from './dir'
import { MakeHTML } from './make-html'

async function main() {
  rimraf.sync(dstMediaPath())
  rimraf.sync(builtPath())

  await fs.copy(srcPath('_media'), dstMediaPath())
  await fs.ensureDir(builtPath())

  await fs.copyFile(srcPath(THEME_FILENAME), builtPath(THEME_FILENAME))

  const db = new Database(builtPath('data.db'))
  db.init()

  const files = await fg('**/*.md', {
    cwd: srcPath('_post'),
  })

  // eslint-disable-next-line array-callback-return
  files.map((f) => {
    const path = f.replace(/\.md$/, '')
    let markdown = fs.readFileSync(srcPath('_post', f), 'utf8')

    const [h, c = ''] = markdown.substr(4).split(/---\n(.*)$/s)
    const header = yaml.safeLoad(h, {
      schema: yaml.JSON_SCHEMA,
    }) as IMatter
    markdown = c

    const makeHtml = new MakeHTML(path)

    const content = makeHtml.clean(markdown)
    const excerptHtml = makeHtml.parse(
      markdown.split(/<!-- excerpt(?:_separator)? -->/)[0]
    )
    const contentHtml = makeHtml.parse(markdown)

    db.insert({
      ...header,
      path,
      content,
      excerptHtml,
      contentHtml,
    })
  })
}

if (require.main === module) {
  main()
}