import sqlite from "better-sqlite3";

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

import { clearLotTypesCache } from "../functions.cache.js";

export const moveLotTypeFieldDown = (lotTypeFieldId: number | string): boolean => {
    const database = sqlite(databasePath);

    const currentField: { lotTypeId?: number; orderNumber: number } = database
        .prepare("select lotTypeId, orderNumber from LotTypeFields where lotTypeFieldId = ?")
        .get(lotTypeFieldId);

    database
        .prepare(
            "update LotTypeFields" +
                " set orderNumber = orderNumber - 1" +
                " where recordDelete_timeMillis is null" +
                " and lotTypeId = ?" +
                " and orderNumber = ? + 1"
        )
        .run(currentField.lotTypeId, currentField.orderNumber);

    const result = database
        .prepare("update LotTypeFields set orderNumber = ? + 1 where lotTypeFieldId = ?")
        .run(currentField.orderNumber, lotTypeFieldId);

    database.close();

    clearLotTypesCache();

    return result.changes > 0;
};

export const moveLotTypeFieldDownToBottom = (lotTypeFieldId: number | string): boolean => {
    const database = sqlite(databasePath);

    const currentField: { lotTypeId?: number; orderNumber: number } = database
        .prepare("select lotTypeId, orderNumber from LotTypeFields where lotTypeFieldId = ?")
        .get(lotTypeFieldId);

    const maxOrderNumber: number = database
        .prepare(
            "select max(orderNumber) as maxOrderNumber" +
                " from LotTypeFields" +
                " where recordDelete_timeMillis is null" +
                " and lotTypeId = ?"
        )
        .get(currentField.lotTypeId).maxOrderNumber;

    if (currentField.orderNumber !== maxOrderNumber) {
        database
            .prepare("update LotTypeFields set orderNumber = ? + 1 where lotTypeFieldId = ?")
            .run(maxOrderNumber, lotTypeFieldId);

        database
            .prepare(
                "update LotTypeFields" +
                    " set orderNumber = orderNumber - 1" +
                    " where recordDelete_timeMillis is null" +
                    " and lotTypeId = ?" +
                    " and orderNumber > ?"
            )
            .run(currentField.lotTypeId, currentField.orderNumber);
    }

    database.close();

    clearLotTypesCache();

    return true;
};

export default moveLotTypeFieldDown;