import sqlite from "better-sqlite3";

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

import type * as recordTypes from "../../types/recordTypes";

interface GetPastLotOccupancyOccupantsFilters {
    searchFilter: string;
}

interface GetPastLotOccupancyOccupantsOptions {
    limit: number;
}

export function getPastLotOccupancyOccupants(
    filters: GetPastLotOccupancyOccupantsFilters,
    options: GetPastLotOccupancyOccupantsOptions
): recordTypes.LotOccupancyOccupant[] {
    const database = sqlite(databasePath, {
        readonly: true
    });

    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) {
            sqlWhereClause +=
                " and (o.occupantName like '%' || ? || '%'" +
                " or o.occupantAddress1 like '%' || ? || '%'" +
                " or o.occupantAddress2 like '%' || ? || '%'" +
                " or o.occupantCity like '%' || ? || '%')";

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

    const sql =
        "select" +
        " o.occupantName, 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: recordTypes.LotOccupancyOccupant[] = database
        .prepare(sql)
        .all(sqlParameters);

    database.close();

    return lotOccupancyOccupants;
}

export default getPastLotOccupancyOccupants;