const { app, ipcMain, dialog } = require('electron')
const fs = require('fs-extra')
const path = require('path')
const getData = require('./getData').getData
const { name, version } = require('../../package.json')
const i18n = require('./i18n')
const { exit } = require('process')

const getTimeString = () => {
  return new Date().toLocaleString('sv').replace(/[- :]/g, '').slice(0, -2)
}

const formatDate = (date) => {
  let y = date.getFullYear()
  let m = `${date.getMonth()+1}`.padStart(2, '0')
  let d = `${date.getDate()}`.padStart(2, '0')
  return `${y}-${m}-${d} ${date.toLocaleString('zh-cn', { hour12: false }).slice(-8)}`
}

const start = async (uids) => {
  const result = {
    info: {
      export_timestamp: Math.ceil(Date.now() / 1000),
      export_app: `${name}`,
      export_app_version: `v${version}`,
      version: "v4.0"
    },
    nap: []
  }
  const { dataMap, current } = await getData()
  let fulldata = []
  uids.forEach(uid => {
    fulldata.push(dataMap.get(uid))
  })
  if (!fulldata.length) {
    throw new Error('数据为空')
  }
  const serverTimeZone = new Map([
    ["prod_gf_cn", 8],
    ["prod_gf_jp", 8]
  ])
  fulldata.forEach(data => {
    let timezone
    timezone = serverTimeZone.get(data.region)
    if(!timezone) {
      throw new Error('不支持此服务器')
    }
    const listTemp = []
    for (let [type, arr] of data.result) {
      arr.forEach(log => {
        listTemp.push({
          gacha_id: log.gacha_id,
          gacha_type: log.gacha_type,
          item_id: log.item_id,
          count: log.count,
          time: log.time,
          name: log.name,
          item_type: log.item_type,
          rank_type: log.rank_type,
          id: log.id
        })
      })
    }
    listTemp.sort((a, b) => Number(BigInt(a.id) - BigInt(b.id)))
    let dataTemp = {
      uid: data.uid,
      timezone: timezone,
      lang: data.lang,
      list: []
    }
    listTemp.forEach(item => {
      dataTemp.list.push({
        ...item
      })
    })
    result.nap.push(dataTemp)
  })
  const filePath = dialog.showSaveDialogSync({
    defaultPath: path.join(app.getPath('downloads'), fulldata.length > 1 ? `UIGF_${getTimeString()}` : `UIGF_${fulldata[0].uid}_${getTimeString()}`),
    filters: [
      { name: i18n.uigf.fileType, extensions: ['json'] }
    ]
  })
  if (filePath) {
    await fs.ensureFile(filePath)
    await fs.writeFile(filePath, JSON.stringify(result))
  }
}

ipcMain.handle('EXPORT_UIGF_JSON', async (event, uids) => {
  await start(uids)
})