n8n-nodes-whatsapp/dist/nodes/WhatsApp/client/trigger-store.js

Nodes to trigger workflows from whatsapp events or send messages (using whatsapp web).

"use strict";
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    if (k2 === undefined) k2 = k;
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      desc = { enumerable: true, get: function() { return m[k]; } };
    }
    Object.defineProperty(o, k2, desc);
}) : (function(o, m, k, k2) {
    if (k2 === undefined) k2 = k;
    o[k2] = m[k];
}));
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    Object.defineProperty(o, "default", { enumerable: true, value: v });
}) : function(o, v) {
    o["default"] = v;
});
var __importStar = (this && this.__importStar) || function (mod) {
    if (mod && mod.__esModule) return mod;
    var result = {};
    if (mod != null) for (var k in mod) if (k !== "default" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
    __setModuleDefault(result, mod);
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var __importDefault = (this && this.__importDefault) || function (mod) {
    return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
const debug = require('debug')('n8n-nodes-whatsapp');
const events_1 = __importDefault(require("./events"));
const client_store_1 = __importDefault(require("./client-store"));
const uuid = __importStar(require("uuid"));
const util_1 = require("./util");
class TriggerRegistrationQueue {
    constructor() {
        this.queue = [];
        this.current = null;
    }
    add(item) {
        const isQueueEmpty = this.queue.length === 0 && this.current === null;
        this.queue = [...this.queue, item];
        debug(`Added item '${item}' to queue!`);
        if (isQueueEmpty) {
            this.startNext();
        }
    }
    startNext() {
        if (this.queue.length === 0) {
            this.current = null;
            return;
        }
        const next = this.queue[0];
        this.queue = this.queue.slice(1);
        debug('start next', next);
        this.current = next;
    }
    async waitFor(item) {
        return new Promise((resolve) => {
            let interval;
            interval = setInterval(() => {
                if (this.current === item) {
                    clearInterval(interval);
                    resolve();
                }
            }, 250);
        });
    }
}
class TriggerStore {
    constructor() {
        this._queue = new TriggerRegistrationQueue();
        this._triggers = [];
        this._clientStore = client_store_1.default;
    }
    async createClient(credential) {
        const client = await this._clientStore.create(credential, false);
        for (const event of events_1.default) {
            client.on(event, (data) => {
                debug('received whatsapp event', { event, data });
                const triggerWithSameEventForThisPhoneNumber = this._triggers
                    .filter(x => x.credential.phoneNumber === credential.phoneNumber && x.events.includes(event))
                    .map(x => x.trigger);
                debug(`Found ${triggerWithSameEventForThisPhoneNumber.length} triggers!`);
                for (const trigger of triggerWithSameEventForThisPhoneNumber) {
                    trigger.emit([trigger.helpers.returnJsonArray({ data: (0, util_1.prepareOutputData)(data) })]);
                }
            });
        }
        await client.initialize();
        return client;
    }
    async register(trigger, isManualTrigger = false) {
        const registrationId = uuid.v4();
        this._queue.add(registrationId);
        await this._queue.waitFor(registrationId);
        const credential = (await trigger.getCredentials('whatsApp'));
        if (!credential) {
            throw new Error("Credential is missing!");
        }
        if (isManualTrigger || !(await this._clientStore.has(credential))) {
            await this.createClient(credential);
        }
        const events = trigger.getNodeParameter('events', '').split(',');
        this._triggers.push({ credential, events, trigger });
        this._queue.startNext();
    }
    async unregister(trigger) {
        debug('unregister trigger', trigger);
        this._triggers = this._triggers.filter(x => x.trigger === trigger);
    }
}
exports.default = new TriggerStore();
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