bb-inspired/dist/modules/websocket/websocket.health.js

Core library for BB-inspired NestJS backend

"use strict";
var __decorate = (this && this.__decorate) || function (decorators, target, key, desc) {
    var c = arguments.length, r = c < 3 ? target : desc === null ? desc = Object.getOwnPropertyDescriptor(target, key) : desc, d;
    if (typeof Reflect === "object" && typeof Reflect.decorate === "function") r = Reflect.decorate(decorators, target, key, desc);
    else for (var i = decorators.length - 1; i >= 0; i--) if (d = decorators[i]) r = (c < 3 ? d(r) : c > 3 ? d(target, key, r) : d(target, key)) || r;
    return c > 3 && r && Object.defineProperty(target, key, r), r;
};
var __metadata = (this && this.__metadata) || function (k, v) {
    if (typeof Reflect === "object" && typeof Reflect.metadata === "function") return Reflect.metadata(k, v);
};
var WebsocketHealthService_1;
Object.defineProperty(exports, "__esModule", { value: true });
exports.WebsocketHealthService = void 0;
const common_1 = require("@nestjs/common");
const websocket_gateway_1 = require("./websocket.gateway");
const logger_1 = require("../../utils/logger");
let WebsocketHealthService = WebsocketHealthService_1 = class WebsocketHealthService {
    constructor(wsGateway) {
        this.wsGateway = wsGateway;
        this.logger = new logger_1.AppLogger(WebsocketHealthService_1.name);
        this.messagesCount = 0;
        this.connectionAttempts = 0;
        this.failedConnections = 0;
        this.latencyMeasurements = [];
        this.lastMetricsReset = Date.now();
        setInterval(() => this.resetMetrics(), 60 * 1000);
    }
    async check() {
        try {
            const serverStatus = this.wsGateway.getServerStatus();
            const activeConnections = this.wsGateway.getActiveConnectionsCount();
            const activeChannels = this.wsGateway.getActiveChannelsCount();
            const messagesPerMinute = this.messagesCount;
            const averageLatency = this.calculateAverageLatency();
            let status = 'up';
            if (!serverStatus.running) {
                status = 'down';
            }
            else if (this.failedConnections > 10 ||
                averageLatency > 1000 ||
                (activeConnections > 0 && this.messagesCount === 0)) {
                status = 'degraded';
            }
            return {
                status,
                serverRunning: serverStatus.running,
                activeConnections,
                activeChannels,
                metrics: {
                    messagesPerMinute,
                    connectionAttempts: this.connectionAttempts,
                    failedConnections: this.failedConnections,
                    averageLatency
                },
                timestamp: new Date().toISOString()
            };
        }
        catch (error) {
            this.logger.error(`Health check failed: ${error.message}`);
            return {
                status: 'down',
                serverRunning: false,
                activeConnections: 0,
                activeChannels: 0,
                metrics: {
                    messagesPerMinute: 0,
                    connectionAttempts: 0,
                    failedConnections: 0,
                    averageLatency: 0
                },
                timestamp: new Date().toISOString()
            };
        }
    }
    trackMessage() {
        this.messagesCount++;
    }
    trackConnection(success) {
        this.connectionAttempts++;
        if (!success) {
            this.failedConnections++;
        }
    }
    trackLatency(latencyMs) {
        this.latencyMeasurements.push(latencyMs);
        if (this.latencyMeasurements.length > 1000) {
            this.latencyMeasurements.shift();
        }
    }
    resetMetrics() {
        this.lastMetricsReset = Date.now();
        this.messagesCount = 0;
        this.connectionAttempts = 0;
        this.failedConnections = 0;
        this.latencyMeasurements = [];
    }
    calculateAverageLatency() {
        if (this.latencyMeasurements.length === 0) {
            return 0;
        }
        const sum = this.latencyMeasurements.reduce((acc, val) => acc + val, 0);
        return Math.round(sum / this.latencyMeasurements.length);
    }
};
exports.WebsocketHealthService = WebsocketHealthService;
exports.WebsocketHealthService = WebsocketHealthService = WebsocketHealthService_1 = __decorate([
    (0, common_1.Injectable)(),
    __metadata("design:paramtypes", [websocket_gateway_1.WebsocketGateway])
], WebsocketHealthService);
//# sourceMappingURL=websocket.health.js.map