import sqlite from 'better-sqlite3'

import { lotOccupancyDB as databasePath } from '../../data/databasePaths.js'

import type * as recordTypes from '../../types/recordTypes'

export function getLotOccupancyFields(
  lotOccupancyId: number | string,
  connectedDatabase?: sqlite.Database
): recordTypes.LotOccupancyField[] {
  const database =
    connectedDatabase ??
    sqlite(databasePath, {
      readonly: true
    })

  const lotOccupancyFields: recordTypes.LotOccupancyField[] = database
    .prepare(
      `select o.lotOccupancyId, o.occupancyTypeFieldId,
        o.lotOccupancyFieldValue, f.occupancyTypeField, f.occupancyTypeFieldValues,
        f.isRequired, f.pattern, f.minimumLength, f.maximumLength,
        f.orderNumber, t.orderNumber as occupancyTypeOrderNumber
        from LotOccupancyFields o
        left join OccupancyTypeFields f on o.occupancyTypeFieldId = f.occupancyTypeFieldId
        left join OccupancyTypes t on f.occupancyTypeId = t.occupancyTypeId
        where o.recordDelete_timeMillis is null
        and o.lotOccupancyId = ?
        
        union
        
        select ? as lotOccupancyId, f.occupancyTypeFieldId,
        '' as lotOccupancyFieldValue, f.occupancyTypeField, f.occupancyTypeFieldValues,
        f.isRequired, f.pattern, f.minimumLength, f.maximumLength,
        f.orderNumber, t.orderNumber as occupancyTypeOrderNumber
        from OccupancyTypeFields f
        left join OccupancyTypes t on f.occupancyTypeId = t.occupancyTypeId
        where f.recordDelete_timeMillis is null and (
            f.occupancyTypeId is null
            or f.occupancyTypeId in (select occupancyTypeId from LotOccupancies where lotOccupancyId = ?))
        and f.occupancyTypeFieldId not in (select occupancyTypeFieldId from LotOccupancyFields where lotOccupancyId = ? and recordDelete_timeMillis is null)
        order by occupancyTypeOrderNumber, f.orderNumber, f.occupancyTypeField`
    )
    .all(lotOccupancyId, lotOccupancyId, lotOccupancyId, lotOccupancyId)

  if (!connectedDatabase) {
    database.close()
  }

  return lotOccupancyFields
}

export default getLotOccupancyFields