import sqlite from 'better-sqlite3'

import { sunriseDB } from '../helpers/database.helpers.js'
import type { Fee } from '../types/record.types.js'

import { updateRecordOrderNumber } from './updateRecordOrderNumber.js'

interface GetFeesFilters {
  burialSiteTypeId?: number | string
  contractTypeId?: number | string
}

export default function getFees(
  feeCategoryId: number,
  additionalFilters: GetFeesFilters,
  connectedDatabase?: sqlite.Database
): Fee[] {
  const updateOrderNumbers = !(
    additionalFilters.burialSiteTypeId || additionalFilters.contractTypeId
  )

  const database = connectedDatabase ?? sqlite(sunriseDB)

  let sqlWhereClause =
    ' where f.recordDelete_timeMillis is null and f.feeCategoryId = ?'

  const sqlParameters: unknown[] = [feeCategoryId]

  if (additionalFilters.contractTypeId) {
    sqlWhereClause += ' and (f.contractTypeId is null or f.contractTypeId = ?)'

    sqlParameters.push(additionalFilters.contractTypeId)
  }

  if (additionalFilters.burialSiteTypeId) {
    sqlWhereClause +=
      ' and (f.burialSiteTypeId is null or f.burialSiteTypeId = ?)'

    sqlParameters.push(additionalFilters.burialSiteTypeId)
  }

  const fees = database
    .prepare(
      `select f.feeId, f.feeCategoryId,
        f.feeName, f.feeDescription, f.feeAccount,
        f.contractTypeId, o.contractType,
        f.burialSiteTypeId, l.burialSiteType,
        ifnull(f.feeAmount, 0) as feeAmount,
        f.feeFunction,
        f.taxAmount, f.taxPercentage,
        f.includeQuantity, f.quantityUnit,
        f.isRequired, f.orderNumber,
        ifnull(lo.contractFeeCount, 0) as contractFeeCount
        from Fees f
        left join (
          select feeId, count(contractId) as contractFeeCount
          from ContractFees
          where recordDelete_timeMillis is null
          group by feeId
        ) lo on f.feeId = lo.feeId
        left join ContractTypes o on f.contractTypeId = o.contractTypeId
        left join BurialSiteTypes l on f.burialSiteTypeId = l.burialSiteTypeId
        ${sqlWhereClause}
        order by f.orderNumber, f.feeName`
    )
    .all(sqlParameters) as Fee[]

  if (updateOrderNumbers) {
    let expectedOrderNumber = 0

    for (const fee of fees) {
      if (fee.orderNumber !== expectedOrderNumber) {
        updateRecordOrderNumber(
          'Fees',
          fee.feeId,
          expectedOrderNumber,
          database
        )
        fee.orderNumber = expectedOrderNumber
      }

      expectedOrderNumber += 1
    }
  }

  if (connectedDatabase === undefined) {
    database.close()
  }

  return fees
}