import fs from 'fs'

import logger from '../../../utils/logger'
import utils from '../../../utils/utils'
import {
  User,
  DataFile,
  Request,
  QuestionDb,
  SubmoduleData,
} from '../../../types/basicTypes'
import {
  processIncomingRequest,
  logResult,
  shouldSaveDataFile,
  Result,
  backupData,
  shouldSearchDataFile,
  loadJSON,
  writeData,
  editDb,
} from '../../../utils/actions'
import {
  dataToString,
  getSubjNameWithoutYear,
  // compareQuestionObj,
} from '../../../utils/classes'
import {
  doALongTask,
  msgAllWorker,
  initWorkerPool,
} from '../../../utils/workerPool'
import dbtools from '../../../utils/dbtools'

const line = '====================================================' // lol
const registeredScriptsFile = 'stats/registeredScripts.json'
const testUsersFile = 'data/testUsers.json'
const userScriptFile = 'submodules/moodle-test-userscript/stable.user.js'
const recievedQuestionFile = 'stats/recievedQuestions'
const savedQuestionsFileName = 'savedQuestions.json'
const oldMotdFile = 'publicDirs/qminingPublic/oldMotd'
const dailyDataCountFile = 'stats/dailyDataCount'
const dataEditsLog = 'stats/dataEdits'

function getSubjCount(qdbs) {
  return qdbs.reduce((acc, qdb) => {
    return acc + qdb.data.length
  }, 0)
}

function getQuestionCount(qdbs) {
  return qdbs.reduce((acc, qdb) => {
    return (
      acc +
      qdb.data.reduce((qacc, subject) => {
        return qacc + subject.Questions.length
      }, 0)
    )
  }, 0)
}

function ExportDailyDataCount(questionDbs, userDB) {
  logger.Log('Saving daily data count ...')
  utils.AppendToFile(
    JSON.stringify({
      date: utils.GetDateString(),
      subjectCount: getSubjCount(questionDbs),
      questionCount: getQuestionCount(questionDbs),
      userCount: dbtools.TableInfo(userDB, 'users').dataCount,
    }),
    dailyDataCountFile
  )
}

function getDbIndexesToSearchIn(
  testUrl: string,
  questionDbs,
  trueIfAlways?: boolean
) {
  return testUrl
    ? questionDbs.reduce((acc, qdb, i) => {
        if (shouldSearchDataFile(qdb, testUrl, trueIfAlways)) {
          acc.push(i)
        }
        return acc
      }, [])
    : []
}

function getSimplreRes(questionDbs) {
  return {
    subjects: getSubjCount(questionDbs),
    questions: getQuestionCount(questionDbs),
  }
}

function getDetailedRes(questionDbs) {
  return questionDbs.map((qdb) => {
    return {
      dbName: qdb.name,
      subjs: qdb.data.map((subj) => {
        return {
          name: subj.Name,
          count: subj.Questions.length,
        }
      }),
    }
  })
}

function getMotd(version, motd) {
  if (version) {
    if (version.startsWith('2.0.')) {
      if (utils.FileExists(oldMotdFile)) {
        return utils.ReadFile(oldMotdFile)
      }
    }
  }
  return motd
}

function searchInDbs(
  question,
  subj,
  recData,
  recievedData,
  searchIn,
  testUrl?
) {
  // searchIn could be [0], [1], ... to search every db in different thread. Put this into a
  // forEach(qdbs) to achieve this
  return new Promise((resolve) => {
    doALongTask({
      type: 'work',
      data: {
        searchIn: searchIn,
        testUrl: testUrl,
        question: question,
        subjName: subj,
        questionData: recData,
        searchInAllIfNoResult: true,
      },
    })
      .then((taskResult) => {
        try {
          logger.DebugLog(
            `Question result length: ${taskResult.length}`,
            'ask',
            1
          )
          logger.DebugLog(taskResult, 'ask', 2)
          resolve({
            question: question,
            result: taskResult.result,
            success: true,
          })
        } catch (err) {
          console.error(err)
          logger.Log(
            'Error while sending ask results',
            logger.GetColor('redbg')
          )
        }
      })
      .catch((err) => {
        logger.Log('Search Data error!', logger.GetColor('redbg'))
        console.error(err)
        resolve({
          mesage: `There was an error processing the question: ${err.message}`,
          result: [],
          recievedData: JSON.stringify(recievedData),
          success: false,
        })
      })
  })
}

function getResult(data) {
  const { question, subj, recData, recievedData, questionDbs, testUrl } = data
  return new Promise((resolve) => {
    const searchIn = getDbIndexesToSearchIn(testUrl, questionDbs, false)

    searchInDbs(question, subj, recData, recievedData, searchIn, testUrl).then(
      (res: any) => {
        if (res.result.length === 0) {
          logger.DebugLog(
            `No result while searching specific question db ${testUrl}`,
            'ask',
            1
          )
          const searchInMore = getDbIndexesToSearchIn(
            testUrl,
            questionDbs,
            true
          ).filter((x) => {
            return !searchIn.includes(x)
          })
          searchInDbs(
            question,
            subj,
            recData,
            recievedData,
            searchInMore,
            testUrl
          ).then((res) => {
            resolve(res)
          })
        } else {
          resolve(res)
        }
      }
    )
  })
}

function dbExists(location, qdbs: Array<QuestionDb>) {
  return qdbs.some((qdb) => {
    return qdb.name === location
  })
}

function writeAskData(body) {
  try {
    let towrite = utils.GetDateString() + '\n'
    towrite +=
      '------------------------------------------------------------------------------\n'
    towrite += JSON.stringify(body)
    towrite +=
      '\n------------------------------------------------------------------------------\n'
    utils.AppendToFile(towrite, recievedQuestionFile)
  } catch (err) {
    logger.Log('Error writing revieved /ask POST data')
    console.error(err)
  }
}

function saveQuestion(questions, subj, testUrl, userid, savedQuestionsDir) {
  // TODO: clear folder every now and then, check if saved questions exist
  if (!subj) {
    logger.Log('No subj name to save test question')
    return
  }
  const questionsToSave = {
    questions: questions,
    subj: subj,
    userid: userid,
    testUrl: testUrl,
    date: new Date(),
  }
  const fname = `${utils.GetDateString()}_${userid}_${testUrl}.json`
  const subject = getSubjNameWithoutYear(subj).replace(/\//g, '-')
  const subjPath = `${savedQuestionsDir}/${subject}`
  const savedSubjQuestionsFilePath = `${subjPath}/${savedQuestionsFileName}`

  utils.CreatePath(subjPath, true)
  if (!utils.FileExists(savedSubjQuestionsFilePath)) {
    utils.WriteFile('[]', savedSubjQuestionsFilePath)
  }

  const savedQuestions = utils.ReadJSON(savedSubjQuestionsFilePath)

  const testExists = false
  // TODO: do this on another thread?
  // const testExists = savedQuestions.some((savedQuestion) => {
  //   const data = utils.ReadJSON(`${subjPath}/${savedQuestion.fname}`)

  //   return data.questions.some((dQuestion) => {
  //     return questions.some((question) => {
  //       const percent = compareQuestionObj(
  //         createQuestion(question),
  //         '',
  //         createQuestion(dQuestion),
  //         ''
  //       )

  //       return percent.avg === 100
  //     })
  //   })
  // })

  if (testExists) {
    return
  }

  savedQuestions.push({
    fname: fname,
    subj: subj,
    userid: userid,
    testUrl: testUrl,
    date: new Date(),
  })
  utils.WriteFile(JSON.stringify(savedQuestions), savedSubjQuestionsFilePath)
  utils.WriteFile(JSON.stringify(questionsToSave), `${subjPath}/${fname}`)
}

function loadSupportedSites() {
  const script = utils.ReadFile(userScriptFile).split('\n')

  let i = 0
  let stayIn = true
  let inHeader = false
  let inMatch = false
  const sites = []
  while (i < script.length && stayIn) {
    if (inHeader) {
      if (script[i].includes('@match')) {
        inMatch = true
      }
      if (inMatch && !script[i].includes('match')) {
        stayIn = false
        inMatch = false
      }
      if (inMatch) {
        sites.push(script[i].split(' ').pop())
      }
    } else {
      inHeader = script[i].includes('==UserScript==')
    }
    i++
  }

  return sites
}

function LoadVersion() {
  const scriptContent = utils.ReadFile(userScriptFile)

  let temp: any = scriptContent.split('\n').find((x) => {
    return x.includes('@version')
  })
  temp = temp.split(' ')
  temp = temp[temp.length - 1]

  return temp
}

function LoadMOTD(motdFile) {
  return utils.ReadFile(motdFile)
}

function LoadUserSpecificMOTD(userSpecificMotdFile) {
  try {
    return utils.ReadJSON(userSpecificMotdFile)
  } catch (err) {
    logger.Log('Couldnt parse user specific motd!', logger.GetColor('redbg'))
    console.error(err)
  }
}

function LoadTestUsers() {
  let testUsers = utils.ReadJSON(testUsersFile)
  if (testUsers) {
    testUsers = testUsers.userIds
  }
  return testUsers
}

function getNewQdb(location, maxIndex, dbsFile, publicDir, questionDbs) {
  logger.Log(
    `No suitable questiondbs found for ${location}, creating a new one...`
  )
  const newDb: DataFile = {
    path: `questionDbs/${location}.json`,
    name: location,
    shouldSearch: {
      location: {
        val: location,
      },
    },
    shouldSave: {
      location: {
        val: location,
      },
    },
  }

  utils.WriteFile(
    JSON.stringify(
      [
        ...utils.ReadJSON(dbsFile),
        newDb, // stored as 'data.json', but is './publicDirs/.../data.json' runtime
      ],
      null,
      2
    ),
    dbsFile
  )

  // "loading" new db
  const loadedNewDb: QuestionDb = {
    ...newDb,
    data: [],
    path: publicDir + newDb.path,
    index: maxIndex,
  }
  utils.WriteFile('[]', loadedNewDb.path)

  questionDbs.push(loadedNewDb)
  msgAllWorker({
    newdb: loadedNewDb,
    type: 'newdb',
  })

  return loadedNewDb
}

function setup(data: SubmoduleData): any {
  const { app, userDB, /* url */ publicdirs /* moduleSpecificData */ } = data

  const publicDir = publicdirs[0]
  const motdFile = publicDir + 'motd'
  const userSpecificMotdFile = publicDir + 'userSpecificMotd.json'
  const dbsFile = publicDir + 'questionDbs.json'
  const savedQuestionsDir = publicDir + 'savedQuestions'

  let version = LoadVersion()
  let supportedSites = loadSupportedSites()
  let motd = LoadMOTD(motdFile)
  let userSpecificMotd = LoadUserSpecificMOTD(userSpecificMotdFile)
  let testUsers: any = LoadTestUsers()

  const dataFiles: Array<DataFile> = utils.ReadJSON(dbsFile)
  const questionDbs: Array<QuestionDb> = loadJSON(dataFiles, publicDir)
  initWorkerPool(questionDbs)

  const filesToWatch = [
    {
      fname: userSpecificMotdFile,
      logMsg: 'User Specific Motd updated',
      action: () => {
        userSpecificMotd = LoadUserSpecificMOTD(userSpecificMotdFile)
      },
    },
    {
      fname: motdFile,
      logMsg: 'Motd updated',
      action: () => {
        motd = LoadMOTD(motdFile)
      },
    },
    {
      fname: testUsersFile,
      logMsg: 'Test Users file changed',
      action: () => {
        testUsers = LoadTestUsers()
      },
    },
    {
      fname: userScriptFile,
      logMsg: 'User script file changed',
      action: () => {
        version = LoadVersion()
        supportedSites = loadSupportedSites()
      },
    },
  ]

  app.get('/getDbs', (req: Request, res: any) => {
    logger.LogReq(req)
    res.json(
      questionDbs.map((qdb) => {
        return {
          path: qdb.path.replace(publicDir, ''),
          name: qdb.name,
          locked: qdb.locked,
        }
      })
    )
  })

  app.get('/allqr.txt', function (req: Request, res: any) {
    logger.LogReq(req)
    const db: any = req.query.db
    let stringifiedData = ''

    res.setHeader('content-type', 'text/plain; charset=utf-8')

    if (db) {
      const requestedDb = questionDbs.find((qdb) => {
        return qdb.name === db
      })

      if (!requestedDb) {
        res.end(`No such db ${db}`)
        return
      }

      stringifiedData = '\n' + line
      stringifiedData += `  Questions in ${requestedDb.name}:  `
      stringifiedData += line + '\n'
      stringifiedData += dataToString(requestedDb.data)
      stringifiedData += '\n' + line + line + '\n'
    } else {
      stringifiedData = questionDbs
        .map((qdb) => {
          let result = ''
          result += '\n' + line
          result += `  Questions in ${qdb.name}:  `
          result += line + '\n'
          result += dataToString(qdb.data)
          result += '\n' + line + line + '\n'
          return result
        })
        .join('\n\n')
    }
    res.end(stringifiedData)
  })

  app.post('/isAdding', function (req: Request, res: any) {
    logger.LogReq(req)
    const user: User = req.session.user
    const dryRun = testUsers.includes(user.id)
    if (!req.body.location) {
      logger.Log(
        '\tbody.location is missing, client version:' + req.body.version
      )
      res.json({ msg: 'body.location is missing' })
      return
    }

    const location = req.body.location.split('/')[2]

    try {
      let maxIndex = -1
      const suitedQuestionDbs = questionDbs.filter((qdb) => {
        if (maxIndex < qdb.index) {
          maxIndex = qdb.index
        }
        return shouldSaveDataFile(qdb, req.body)
      }, [])

      if (suitedQuestionDbs.length === 0) {
        if (!dbExists(location, questionDbs)) {
          suitedQuestionDbs.push(
            getNewQdb(location, maxIndex, dbsFile, publicDir, questionDbs)
          )
        } else {
          logger.Log(
            `Tried to add existing db named ${location}!`,
            logger.GetColor('red')
          )
        }
      }
      if (suitedQuestionDbs.length === 0) {
        res.json({
          status: 'fail',
          msg: 'No suitable dbs to add questions to',
        })
        return
      }

      processIncomingRequest(req.body, suitedQuestionDbs, dryRun, user)
        .then((resultArray: Array<Result>) => {
          logResult(req.body, resultArray, user.id, dryRun)

          const totalNewQuestions = resultArray.reduce((acc, sres) => {
            return acc + sres.newQuestions.length
          }, 0)

          res.json({
            success: resultArray.length > 0,
            newQuestions: resultArray,
            totalNewQuestions: totalNewQuestions,
          })

          if (totalNewQuestions > 0) {
            resultArray.forEach((result) => {
              msgAllWorker({
                type: 'newQuestions',
                data: result,
              })
            })
          }
        })
        .catch((err) => {
          logger.Log(
            'Error during processing incoming request',
            logger.GetColor('redbg')
          )
          console.error(err)
          res.json({
            success: false,
          })
        })
    } catch (err) {
      logger.Log(
        'Error during getting incoming request processor promises ',
        logger.GetColor('redbg')
      )
      console.error(err)
      res.json({
        success: false,
      })
    }
  })

  app.post('/ask', function (req: Request, res) {
    const user: User = req.session.user

    if (!req.body.questions) {
      res.json({
        message: `ask something! { question:'' ,subject:'', location:'' }`,
        result: [],
        recievedData: JSON.stringify(req.body),
        success: false,
      })
      return
    }
    const subj: any = req.body.subj || ''
    // TODO: test if testUrl is undefined (it shouldnt)
    const testUrl = req.body.testUrl
      ? req.body.testUrl.split('/')[2]
      : undefined

    writeAskData(req.body)

    // every question in a different thread
    const resultPromises = req.body.questions.map((question) => {
      return getResult({
        question: question,
        subj: subj,
        recData: req.body,
        testUrl: testUrl,
        questionDbs: questionDbs,
      })
    })

    Promise.all(resultPromises).then((results) => {
      const response = results.map((result: any) => {
        return {
          answers: result.result,
          question: result.question,
        }
      })
      res.json(response)

      const saveableQuestions = response.reduce((acc, res) => {
        const save = res.answers.every((answer) => {
          return answer.match < 90
        })

        if (save) {
          acc.push(res.question)
        }
        return acc
      }, [])

      if (saveableQuestions.length > 0) {
        saveQuestion(
          saveableQuestions,
          subj,
          testUrl,
          user.id,
          savedQuestionsDir
        )
      }
    })
  })

  app.get('/ask', function (req: Request, res) {
    if (Object.keys(req.query).length === 0) {
      logger.DebugLog(`No query params /ask GET`, 'ask', 1)
      res.json({
        message:
          'ask something! ?q=[question]&subj=[subject]&data=[question data]. "subj" is optimal for faster result',
        result: [],
        recievedData: JSON.stringify(req.query),
        success: false,
      })
      return
    }

    if (req.query.q && req.query.data) {
      const subj: any = req.query.subj || ''
      const question = req.query.q
      const recData: any = req.query.data
      getResult({
        question: question,
        subj: subj,
        recData: recData,
        recievedData: req.query,
        questionDbs: questionDbs,
      }).then((result) => {
        res.json(result)
      })
    } else {
      logger.DebugLog(`Invalid question`, 'ask', 1)
      res.json({
        message: `Invalid question :(`,
        result: [],
        recievedData: JSON.stringify(req.query),
        success: false,
      })
    }
  })

  app.get('/supportedSites', function (req: Request, res: any) {
    logger.LogReq(req)

    res.json(supportedSites)
  })

  app.get('/datacount', function (req: Request, res: any) {
    logger.LogReq(req)
    if (req.query.detailed === 'all') {
      res.json({
        detailed: getDetailedRes(questionDbs),
        simple: getSimplreRes(questionDbs),
      })
    } else if (req.query.detailed) {
      res.json(getDetailedRes(questionDbs))
    } else {
      res.json(getSimplreRes(questionDbs))
    }
  })

  app.get('/infos', function (req: Request, res) {
    const user: User = req.session.user

    const result: any = {
      result: 'success',
      uid: user.id,
    }

    if (req.query.subjinfo) {
      result.subjinfo = getSimplreRes(questionDbs)
    }
    if (req.query.version) {
      result.version = version
    }
    if (req.query.motd) {
      result.motd = getMotd(req.query.cversion, motd)
      if (userSpecificMotd[user.id]) {
        result.userSpecificMotd = {
          msg: userSpecificMotd[user.id].msg,
          seen: userSpecificMotd[user.id].seen,
        }
      }
    }
    res.json(result)
  })
  app.post('/infos', (req: Request, res) => {
    const user: User = req.session.user

    if (req.body.userSpecificMotdSeen && !userSpecificMotd[user.id].seen) {
      userSpecificMotd[user.id].seen = true

      logger.Log(
        `User #${user.id}'s user specific motd is now seen:`,
        logger.GetColor('bluebg')
      )
      logger.Log(userSpecificMotd[user.id].msg)
      utils.WriteFile(
        JSON.stringify(userSpecificMotd, null, 2),
        userSpecificMotdFile
      )
    }

    res.json({ msg: 'done' })
  })

  app.post('/registerscript', function (req: Request, res) {
    logger.LogReq(req)

    if (!utils.FileExists(registeredScriptsFile)) {
      utils.WriteFile('[]', registeredScriptsFile)
    }

    const ua: any = req.headers['user-agent']
    const registeredScripts = utils.ReadJSON(registeredScriptsFile)
    const { cid, uid, version, installSource, date } = req.body

    const index = registeredScripts.findIndex((registration) => {
      return registration.cid === cid
    })

    if (index === -1) {
      const x: any = {
        cid: cid,
        version: version,
        installSource: installSource,
        date: date,
        userAgent: ua,
      }

      if (uid) {
        x.uid = uid
        x.loginDate = date
      }
      registeredScripts.push(x)
    } else {
      const currRegistration = registeredScripts[index]

      if (!currRegistration.uid && uid) {
        registeredScripts[index] = {
          ...registeredScripts[index],
          uid: uid,
          loginDate: date,
        }
      } else {
        logger.DebugLog(
          `cid: ${cid}, uid: ${uid} tried to register multiple times`,
          'register',
          1
        )
      }
    }

    utils.WriteFile(
      JSON.stringify(registeredScripts, null, 2),
      registeredScriptsFile
    )

    res.json({ msg: 'done' })
  })

  app.get('/possibleAnswers', (req: Request, res: any) => {
    logger.LogReq(req)
    const files = utils.ReadDir(savedQuestionsDir)

    files.sort(function (a, b) {
      return (
        fs.statSync(savedQuestionsDir + '/' + b).mtime.getTime() -
        fs.statSync(savedQuestionsDir + '/' + a).mtime.getTime()
      )
    })

    res.json({
      savedQuestionsFileName: savedQuestionsFileName,
      subjects: files.map((subj) => {
        return {
          name: subj,
          path: `savedQuestions/${subj}/`,
        }
      }),
    })
  })

  app.post('/rmPossibleAnswer', (req: Request, res: any) => {
    logger.LogReq(req)
    const user: User = req.session.user

    const subj = req.body.subj
    const file = req.body.file
    const savedQuestionsPath = `${savedQuestionsDir}/${subj}/${savedQuestionsFileName}`
    const savedQuestions = utils.ReadJSON(savedQuestionsPath)
    let path = `${savedQuestionsDir}/${subj}/${file}`
    // to prevent deleting ../../../ ... /etc/shadow
    while (path.includes('..')) {
      path = path.replace(/\.\./g, '.')
    }

    if (utils.FileExists(path)) {
      utils.deleteFile(path)

      utils.WriteFile(
        JSON.stringify(
          savedQuestions.filter((sq) => {
            return sq.fname !== file
          })
        ),
        savedQuestionsPath
      )

      logger.Log(
        `User #${user.id} deleted '${file}' from subject '${subj}'`,
        logger.GetColor('cyan')
      )
      res.json({
        res: 'ok',
      })
    } else {
      logger.Log(
        `User #${user.id} tried to delete '${file}' from subject '${subj}', but failed`,
        logger.GetColor('red')
      )
      res.json({
        res: 'fail',
      })
    }
  })

  app.post('/updateQuestion', (req: Request, res) => {
    logger.LogReq(req)
    const user: User = req.session.user
    const date = utils.GetDateString()

    const editType = req.body.type
    const selectedDb = req.body.selectedDb
    if (!editType || !selectedDb) {
      res.json({
        status: 'fail',
        msg: 'No .editType or .selectedDb !',
      })
      return
    }

    const dbIndex = questionDbs.findIndex((qdb) => {
      return qdb.name === selectedDb.name
    })
    const currDb = questionDbs[dbIndex]

    if (dbIndex === -1) {
      res.json({
        status: 'fail',
        msg: `No question db named like ${selectedDb.name}!`,
      })
      return
    }

    // -----------------
    const {
      success,
      msg,
      resultDb,
      deletedQuestion,
      newVal,
      oldVal,
      deletedQuestions,
      changedQuestions,
    } = editDb(currDb, req.body)

    if (!success) {
      res.json({ success: success, msg: msg })
      return
    }
    if (resultDb) {
      questionDbs[dbIndex] = resultDb
    }

    if (editType === 'delete') {
      const { index, subjName } = req.body
      logger.Log(
        `User #${user.id} deleted a question from '${subjName}'`,
        logger.GetColor('cyan')
      )
      utils.AppendToFile(
        `${date}: User ${user.id} deleted a question from '${subjName}' (index: ${index})`,
        dataEditsLog
      )
      utils.AppendToFile(JSON.stringify(deletedQuestion, null, 2), dataEditsLog)
    }

    if (editType === 'edit') {
      const { index, subjName } = req.body
      logger.Log(
        `User #${user.id} edited a question in '${subjName}'`,
        logger.GetColor('cyan')
      )
      utils.AppendToFile(
        `${date}: User ${user.id} edited a question in '${subjName}' (index: ${index})`,
        dataEditsLog
      )
      utils.AppendToFile(
        JSON.stringify(
          {
            newVal: newVal,
            oldVal: oldVal,
          },
          null,
          2
        ),
        dataEditsLog
      )
    }

    if (editType === 'subjEdit') {
      const { subjName } = req.body
      logger.Log(
        `User #${user.id} modified '${subjName}'. Edited: ${deletedQuestions.length}, deleted: ${deletedQuestions.length}`,
        logger.GetColor('cyan')
      )
      utils.AppendToFile(
        `${date} User #${user.id} modified '${subjName}'. Edited: ${deletedQuestions.length}, deleted: ${deletedQuestions.length}`,
        dataEditsLog
      )
      utils.AppendToFile(
        JSON.stringify(
          {
            deletedQuestions: deletedQuestions,
            changedQuestions: changedQuestions,
          },
          null,
          2
        ),
        dataEditsLog
      )
    }
    // ------------------

    if (success) {
      writeData(currDb.data, currDb.path)
      msgAllWorker({
        type: 'dbEdit',
        data: {
          dbIndex: dbIndex,
          edits: req.body,
        },
      })
    }

    res.json({
      success: true,
      msg: 'OK',
    })
  })

  return {
    dailyAction: () => {
      backupData(questionDbs)
      ExportDailyDataCount(questionDbs, userDB)
    },
    load: () => {
      backupData(questionDbs)

      filesToWatch.forEach((ftw) => {
        if (utils.FileExists(ftw.fname)) {
          utils.WatchFile(ftw.fname, () => {
            logger.Log(ftw.logMsg)
            ftw.action()
          })
          ftw.action()
        } else {
          logger.Log(
            `File ${ftw.fname} does not exists to watch!`,
            logger.GetColor('redbg')
          )
        }
      })
    },
  }
}

export default {
  setup: setup,
}