added PerformanceLog class

packages/app/src/classes/PerformanceLog/index.js

@@ -0,0 +1,53 @@
+export default class PerformanceLog {
+    constructor(
+        id,
+        params = {
+            disabled: false
+        }
+    ) {
+        this.id = id
+        this.params = params
+
+        this.table = {}
+
+        return this
+    }
+
+    start(event) {
+        if (this.params.disabled) {
+            return false
+        }
+
+        if (!this.table[event]) {
+            this.table[event] = {}
+        }
+
+        return this.table[event]["start"] = performance.now()
+    }
+
+    end(event) {
+        if (this.params.disabled) {
+            return false
+        }
+
+        if (!this.table[event]) {
+            return
+        }
+
+        return this.table[event]["end"] = performance.now()
+    }
+
+    finally() {
+        if (this.params.disabled) {
+            return false
+        }
+
+        console.group(this.id)
+
+        Object.entries(this.table).forEach(([entry, value]) => {
+            console.log(entry, `${(value.end - value.start).toFixed(0)}ms`)
+        })
+
+        console.groupEnd()
+    }
+}