add basic analytics

langserver/analytics.js

@@ -0,0 +1,134 @@
+let mp;
+/** @type {string} */
+let uid;
+/** @type {string} */
+let sid;
+/** @type {Map<string,[number,number]>} */
+const timeLabels = new Map();
+let session_start = Date.now();
+
+/**
+ * @param {string} t 
+ * @param {string} u
+ * @param {string} s
+ * @param {{name:string,version:string}} package_json
+ */
+function init(t = '0cca95950055c6553804a46ce7e3df18', u, s, package_json, props) {
+    if (mp) {
+        return;
+    }
+    try {
+        mp = require('mixpanel').init(t);
+    }
+    catch {}
+    uid = u;
+    sid = s;
+
+    const os = require('os');
+    event(`${package_json.name}-start`, {
+        extension: package_json.name,
+        ext_version: package_json.version,
+        arch: process.arch,
+        cpus: os.cpus().length,
+        mem: (os.totalmem() / 1e6)|0,
+        platform: process.platform,
+        node_version: process.version,
+        release: os.release(),
+        ...props
+    });
+}
+
+/**
+ * 
+ * @param {string} eventName 
+ * @param {*} [properties] 
+ */
+function event(eventName, properties) {
+    if (!mp) {
+        return;
+    }
+    try {
+        if (uid) {
+            mp.track(eventName, {
+                distinct_id: uid,
+                session_id: sid,
+                session_length: Math.trunc((Date.now() - session_start) / 60e3),
+                ...properties,
+            });
+        } else {
+            mp.track(eventName);
+        }
+    } catch {}
+}
+
+/**
+ * @param {string} label 
+ */
+function time(label) {
+    if (!label || timeLabels.has(label)) {
+        return;
+    }
+    timeLabels.set(label, process.hrtime());
+}
+
+/**
+ * @param {string} label 
+ * @param {'ns'|'us'|'ms'|'s'} time_unit
+ * @param {*} [additionalProps]
+ */
+function timeEnd(label, time_unit = 'ms', additionalProps = {}) {
+    if (!label) {
+        return;
+    }
+    const startTime = timeLabels.get(label);
+    timeLabels.delete(label);
+    if (!Array.isArray(startTime)) {
+        return;
+    }
+    const elapsed = process.hrtime(startTime);
+    const count = time_unit === 's' ? elapsed[0] : ((elapsed[0]*1e9) + elapsed[1]);
+    const divs = {
+        ns: 1, us: 1e3, ms: 1e6, s: 1
+    }
+    const props = {
+        [`${label}-elapsed`]: Math.trunc(count / (divs[time_unit] || 1)),
+        [`${label}-elapsed_unit`]: time_unit,
+        ...additionalProps,
+    }
+    event(label, props);
+}
+
+/**
+ * @param {import('vscode').ExtensionContext} context
+ */
+function getIDs(context) {
+    if (!context || !context.globalState) {
+        return {
+            uid: '', sid: ''
+        };
+    }
+    let uuidv4 = () => {
+        try {
+            uuidv4 = require('uuid').v4;
+            return uuidv4();
+        } catch {
+            return '';
+        }
+    }
+    let u = uid || (uid = context.globalState.get('mix-panel-id'));
+    if (typeof u !== 'string' || u.length > 36) {
+        u = uid = uuidv4();
+        context.globalState.update('mix-panel-id', u);
+    }
+    let s = sid || (sid = uuidv4());
+    return {
+        uid: u,
+        sid: s,
+    }
+}
+
+exports.init = init;
+exports.event = event;
+exports.time = time;
+exports.timeEnd = timeEnd;
+exports.getIDs = getIDs;