import fs from 'fs'

import axios from 'axios'

import { IKanji, IRadical } from './shared'

export const subjects = {
  data: [] as (IKanji | IRadical)[],
  filename: 'wanikani.json',
  load() {
    this.data = JSON.parse(fs.readFileSync(this.filename, 'utf-8'))
    return this.data
  },
  dump(d: (IKanji | IRadical)[]) {
    this.data = d
    this.finalize()
  },
  finalize() {
    fs.writeFileSync(this.filename, JSON.stringify(this.data))
  }
}

async function main() {
  const wk = axios.create({
    baseURL: 'https://api.wanikani.com/v2/',
    headers: {
      Authorization: `Bearer ${process.env['WANIKANI_API_KEY']}`
    }
  })

  const data: (IKanji | IRadical)[] = []

  let nextURL = '/subjects?types=radical,kanji'
  while (nextURL) {
    const r = await wk
      .get<{
        pages: {
          next_url?: string
        }
        data: (IKanji | IRadical)[]
      }>(nextURL)
      .then((r) => r.data)
    data.push(...r.data)
    console.info(r.pages.next_url)
    nextURL = r.pages.next_url || ''
  }

  subjects.dump(data)
}

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