"use strict";
var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
    if (k2 === undefined) k2 = k;
    Object.defineProperty(o, k2, { enumerable: true, get: function() { return m[k]; } });
}) : (function(o, m, k, k2) {
    if (k2 === undefined) k2 = k;
    o[k2] = m[k];
}));
var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
    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);
    return result;
};
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
    function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
    return new (P || (P = Promise))(function (resolve, reject) {
        function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
        function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
        function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
        step((generator = generator.apply(thisArg, _arguments || [])).next());
    });
};
var __importDefault = (this && this.__importDefault) || function (mod) {
    return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.timed = exports.createMetricsServer = exports.createMetrics = void 0;
const prom_client_1 = __importStar(require("prom-client"));
const express_1 = __importDefault(require("express"));
exports.createMetrics = () => {
    // Collect default metrics (event loop lag, memory, file descriptors etc.)
    prom_client_1.collectDefaultMetrics();
    return { client: prom_client_1.default, registry: prom_client_1.default.register };
};
exports.createMetricsServer = (options) => {
    const logger = options.logger.child({ component: 'MetricsServer' });
    const app = express_1.default();
    app.get(options.route || '/metrics', (_, res) => {
        res.status(200).send(options.registry.metrics());
    });
    const port = options.port || 7300;
    const server = app.listen(port, () => {
        logger.debug('Listening on port', { port });
    });
    return server;
};
function timed(metric, labels, promise) {
    return __awaiter(this, void 0, void 0, function* () {
        const timer = metric === null || metric === void 0 ? void 0 : metric.startTimer(labels);
        try {
            return yield promise;
        }
        finally {
            if (timer) {
                timer(labels);
            }
        }
    });
}
exports.timed = timed;
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