import type { LotOccupancyOccupant } from '../types/recordTypes.js'

import { acquireConnection } from './pool.js'

export interface GetPastLotOccupancyOccupantsFilters {
  searchFilter: string
}

interface GetPastLotOccupancyOccupantsOptions {
  limit: number
}

export default async function getPastLotOccupancyOccupants(
  filters: GetPastLotOccupancyOccupantsFilters,
  options: GetPastLotOccupancyOccupantsOptions
): Promise<LotOccupancyOccupant[]> {
  const database = await acquireConnection()

  let sqlWhereClause =
    ' where o.recordDelete_timeMillis is null and l.recordDelete_timeMillis is null'

  const sqlParameters: unknown[] = []

  if (filters.searchFilter !== '') {
    const searchFilterPieces = filters.searchFilter.split(' ')

    for (const searchFilterPiece of searchFilterPieces) {
      if (searchFilterPiece === '') {
        continue
      }

      sqlWhereClause += ` and (o.occupantName like '%' || ? || '%'
        or o.occupantFamilyName like '%' || ? || '%'
        or o.occupantAddress1 like '%' || ? || '%'
        or o.occupantAddress2 like '%' || ? || '%'
        or o.occupantCity like '%' || ? || '%')`

      sqlParameters.push(
        searchFilterPiece,
        searchFilterPiece,
        searchFilterPiece,
        searchFilterPiece,
        searchFilterPiece
      )
    }
  }

  const sql = `select o.occupantName, o.occupantFamilyName,
      o.occupantAddress1, o.occupantAddress2,
      o.occupantCity, o.occupantProvince, o.occupantPostalCode,
      o.occupantPhoneNumber, o.occupantEmailAddress,
      count(*) as lotOccupancyIdCount,
      max(o.recordUpdate_timeMillis) as recordUpdate_timeMillisMax
    from LotOccupancyOccupants o
    left join LotOccupancies l on o.lotOccupancyId = l.lotOccupancyId
    ${sqlWhereClause}
    group by occupantName, occupantAddress1, occupantAddress2,
      occupantCity, occupantProvince, occupantPostalCode,
      occupantPhoneNumber, occupantEmailAddress
    order by lotOccupancyIdCount desc, recordUpdate_timeMillisMax desc
    limit ${options.limit}`

  const lotOccupancyOccupants = database
    .prepare(sql)
    .all(sqlParameters) as LotOccupancyOccupant[]

  database.release()

  return lotOccupancyOccupants
}