import { EventsHandler, IEventHandler } from "@nestjs/cqrs";
import { CouchService } from "../../data/services/couch.service";
import { STATUS } from "src/core/strings/constants/base.constants";
import { PaymentMethodDeletedEvent } from "src/modules/transaction/payment-method/domain/entities/event/payment-method-deleted.event";
import { PaymentMethodUpdatedEvent } from "src/modules/transaction/payment-method/domain/entities/event/payment-method-updated.event";
import { PaymentMethodChangeStatusEvent } from "src/modules/transaction/payment-method/domain/entities/event/payment-method-change-status.event";

@EventsHandler(PaymentMethodDeletedEvent)
export class PaymentMethodDeletedHandler implements IEventHandler<PaymentMethodDeletedEvent> {
    constructor(
        private couchService: CouchService
    ) { }

    async handle(event: PaymentMethodDeletedEvent) {
        const data = await this.couchService.deleteDoc({
            _id: event.data.id,
            ...event.data.data
        }, 'payment_method');
    }
}

@EventsHandler(PaymentMethodChangeStatusEvent, PaymentMethodUpdatedEvent)
export class PaymentMethodUpdatedHandler implements IEventHandler<PaymentMethodChangeStatusEvent> {
    constructor(
        private couchService: CouchService
    ) { }

    async handle(event: PaymentMethodChangeStatusEvent) {

        const dataOld = event.data.old;
        const data = event.data.data;

        // change status to active
        if (dataOld?.status != data.status && data.status == STATUS.ACTIVE) {
            await this.couchService.createDoc(
                {
                    _id: data.id,
                    ...data
                },
                'payment_method'
            );
        }

        else if (dataOld?.status != data.status) {
            await this.couchService.deleteDoc(
                {
                    _id: data.id,
                    ...data
                },
                'payment_method'
            );
        }

        // update
        else {
            await this.couchService.updateDoc(
                {
                    _id: data.id,
                    ...data
                },
                'payment_method'
            );
        }
    }
}