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backend/node_modules/hono/dist/cjs/middleware/timing/timing.js

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+"use strict";
+var __defProp = Object.defineProperty;
+var __getOwnPropDesc = Object.getOwnPropertyDescriptor;
+var __getOwnPropNames = Object.getOwnPropertyNames;
+var __hasOwnProp = Object.prototype.hasOwnProperty;
+var __export = (target, all) => {
+  for (var name in all)
+    __defProp(target, name, { get: all[name], enumerable: true });
+};
+var __copyProps = (to, from, except, desc) => {
+  if (from && typeof from === "object" || typeof from === "function") {
+    for (let key of __getOwnPropNames(from))
+      if (!__hasOwnProp.call(to, key) && key !== except)
+        __defProp(to, key, { get: () => from[key], enumerable: !(desc = __getOwnPropDesc(from, key)) || desc.enumerable });
+  }
+  return to;
+};
+var __toCommonJS = (mod) => __copyProps(__defProp({}, "__esModule", { value: true }), mod);
+var timing_exports = {};
+__export(timing_exports, {
+  endTime: () => endTime,
+  setMetric: () => setMetric,
+  startTime: () => startTime,
+  timing: () => timing,
+  wrapTime: () => wrapTime
+});
+module.exports = __toCommonJS(timing_exports);
+var import_context = require("../../context");
+const getTime = () => {
+  try {
+    return performance.now();
+  } catch {
+  }
+  return Date.now();
+};
+const timing = (config) => {
+  const options = {
+    total: true,
+    enabled: true,
+    totalDescription: "Total Response Time",
+    autoEnd: true,
+    crossOrigin: false,
+    ...config
+  };
+  return async function timing2(c, next) {
+    const headers = [];
+    const timers = /* @__PURE__ */ new Map();
+    if (c.get("metric")) {
+      return await next();
+    }
+    c.set("metric", { headers, timers });
+    if (options.total) {
+      startTime(c, "total", options.totalDescription);
+    }
+    await next();
+    if (options.total) {
+      endTime(c, "total");
+    }
+    if (options.autoEnd) {
+      timers.forEach((_, key) => endTime(c, key));
+    }
+    const enabled = typeof options.enabled === "function" ? options.enabled(c) : options.enabled;
+    if (enabled) {
+      c.res.headers.append("Server-Timing", headers.join(","));
+      const crossOrigin = typeof options.crossOrigin === "function" ? options.crossOrigin(c) : options.crossOrigin;
+      if (crossOrigin) {
+        c.res.headers.append(
+          "Timing-Allow-Origin",
+          typeof crossOrigin === "string" ? crossOrigin : "*"
+        );
+      }
+    }
+  };
+};
+const setMetric = (c, name, valueDescription, description, precision) => {
+  const metrics = c.get("metric");
+  if (!metrics) {
+    console.warn("Metrics not initialized! Please add the `timing()` middleware to this route!");
+    return;
+  }
+  if (typeof valueDescription === "number") {
+    const dur = valueDescription.toFixed(precision || 1);
+    const metric = description ? `${name};dur=${dur};desc="${description}"` : `${name};dur=${dur}`;
+    metrics.headers.push(metric);
+  } else {
+    const metric = valueDescription ? `${name};desc="${valueDescription}"` : `${name}`;
+    metrics.headers.push(metric);
+  }
+};
+const startTime = (c, name, description) => {
+  const metrics = c.get("metric");
+  if (!metrics) {
+    console.warn("Metrics not initialized! Please add the `timing()` middleware to this route!");
+    return;
+  }
+  metrics.timers.set(name, { description, start: getTime() });
+};
+const endTime = (c, name, precision) => {
+  const metrics = c.get("metric");
+  if (!metrics) {
+    console.warn("Metrics not initialized! Please add the `timing()` middleware to this route!");
+    return;
+  }
+  const timer = metrics.timers.get(name);
+  if (!timer) {
+    console.warn(`Timer "${name}" does not exist!`);
+    return;
+  }
+  const { description, start } = timer;
+  const duration = getTime() - start;
+  setMetric(c, name, duration, description, precision);
+  metrics.timers.delete(name);
+};
+async function wrapTime(c, name, callable, description, precision) {
+  startTime(c, name, description);
+  try {
+    return await callable;
+  } finally {
+    endTime(c, name, precision);
+  }
+}
+// Annotate the CommonJS export names for ESM import in node:
+0 && (module.exports = {
+  endTime,
+  setMetric,
+  startTime,
+  timing,
+  wrapTime
+});