@ahmedhegazee/nestjs-telescope/dist/telescope/core/services/entry-manager.service.js

Advanced observability and monitoring solution for NestJS applications with ML-powered analytics, enterprise features, and production-ready scaling

"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 __param = (this && this.__param) || function (paramIndex, decorator) {
    return function (target, key) { decorator(target, key, paramIndex); }
};
var EntryManagerService_1;
Object.defineProperty(exports, "__esModule", { value: true });
exports.EntryManagerService = void 0;
const common_1 = require("@nestjs/common");
const storage_service_1 = require("../../storage/storage.service");
const uuid_1 = require("uuid");
let EntryManagerService = EntryManagerService_1 = class EntryManagerService {
    constructor(storageService, config) {
        this.storageService = storageService;
        this.config = config;
        this.logger = new common_1.Logger(EntryManagerService_1.name);
        this.batchQueue = [];
        this.batchTimer = null;
        this.sequenceCounter = 0;
        this.startBatchProcessor();
    }
    async process(entry) {
        this.ensureEntryFields(entry);
        if (this.config.storage.batch.enabled) {
            await this.addToBatch(entry);
        }
        else {
            await this.storageService.store(entry);
        }
    }
    async processBatch(entries) {
        entries.forEach(entry => this.ensureEntryFields(entry));
        await this.storageService.storeBatch(entries);
    }
    async addToBatch(entry) {
        this.batchQueue.push(entry);
        if (this.batchQueue.length >= this.config.storage.batch.size) {
            await this.flushBatch();
        }
    }
    ensureEntryFields(entry) {
        if (!entry.id) {
            entry.id = `tel_${(0, uuid_1.v4)()}`;
        }
        if (!entry.timestamp) {
            entry.timestamp = new Date();
        }
        if (!entry.sequence) {
            entry.sequence = ++this.sequenceCounter;
        }
        if (!entry.familyHash) {
            entry.familyHash = this.generateFamilyHash(entry);
        }
        if (!entry.tags) {
            entry.tags = [];
        }
    }
    generateFamilyHash(entry) {
        const hashInput = `${entry.type}:${JSON.stringify(entry.content).substring(0, 100)}`;
        let hash = 0;
        for (let i = 0; i < hashInput.length; i++) {
            const char = hashInput.charCodeAt(i);
            hash = ((hash << 5) - hash) + char;
            hash = hash & hash;
        }
        return Math.abs(hash).toString(16);
    }
    startBatchProcessor() {
        if (!this.config.storage.batch.enabled)
            return;
        setInterval(async () => {
            if (this.batchQueue.length > 0) {
                await this.flushBatch();
            }
        }, this.config.storage.batch.flushInterval);
    }
    async flushBatch() {
        if (this.batchQueue.length === 0)
            return;
        const entries = this.batchQueue.splice(0);
        try {
            await this.storageService.storeBatch(entries);
            this.logger.debug(`Flushed batch: ${entries.length} entries`);
        }
        catch (error) {
            this.logger.error(`Failed to flush batch: ${error.message}`);
            this.batchQueue.unshift(...entries);
        }
        if (this.batchTimer) {
            clearTimeout(this.batchTimer);
            this.batchTimer = null;
        }
    }
};
exports.EntryManagerService = EntryManagerService;
exports.EntryManagerService = EntryManagerService = EntryManagerService_1 = __decorate([
    (0, common_1.Injectable)(),
    __param(1, (0, common_1.Inject)('TELESCOPE_CONFIG')),
    __metadata("design:paramtypes", [storage_service_1.StorageService, Object])
], EntryManagerService);
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