statuses transitions

ns.js

import {makeFlag, isBitsOn, isBitsOff, turnBitsOn, turnBitsOff} from '../helpers/bitwise';

/**
 * Statuses dictionary
 * @type {number}
 */
export const
    F_FINALIZED            = makeFlag(0), // finalized
    F_QUEUED_FOR_FETCHING  = makeFlag(1), // marked for queue to be fetched
    F_READY_FOR_PROCESSING = makeFlag(2), // marked for processing
    F_PROCESSED            = makeFlag(3), // processed successfully
    F_ERROR                = makeFlag(4), // processed with error

    STATUS_INIT = 0;

export default class NsInvoiceModel extends BaseModel {
    // ...

    /**
     * Turn the invoice status as finalized
     * @returns {OrderModel}
     */
    turnFinalized() {
        return this.turnOn(F_FINALIZED).turnOff(F_QUEUED_FOR_FETCHING);
    }

    /**
     * Turn the invoice status as ready for process
     * @returns {OrderModel}
     */
    turnReadyForProcess() {
        return this.turnOn(F_READY_FOR_PROCESS);
    }

    /**
     * Turn the invoice status as processed
     * @returns {OrderModel}
     */
    turnProcessed() {
        return this.turnOff(F_READY_FOR_PROCESS).turnOff(F_ERROR).turnOn(F_PROCESSED);
    }

    /**
     * Turn the invoice status as processed
     * @returns {OrderModel}
     */
    turnError() {
        return this.turnOff(F_READY_FOR_PROCESS).turnOff(F_ERROR).turnOn(F_PROCESSED);
    }

    /**
     * Turn flags on abstract method
     * @param {number} flag
     * @returns {OrderModel}
     */
    turnOn(flag) {
        this.status = turnBitsOn(this.status, flag);

        return this;
    }

    /**
     * Turn flags off abstract method
     * @param {number} flag
     * @returns {OrderModel}
     */
    turnOff(flag) {
        this.status = turnBitsOff(this.status, flag);

        return this;
    }
}