feat: throttling configuration

scripts/config-schema.json

@@ -41,20 +41,28 @@
         "performance": {
           "type": "object",
           "additionalProperties": false,
-          "required": ["pointerEventsThreshold", "refreshInfoFreq"],
+          "required": ["pointerEventsThrottling", "refreshInfoFreq"],
           "properties": {
-            "pointerEventsThreshold": {
-              "type": "object",
-              "additionalProperties": false,
-              "required": ["minDistDelta", "minTimeDelta"],
-              "properties": {
-                "minDistDelta": {
-                  "type": "number",
-                  "minimum": 0
-                },
-                "minTimeDelta": {
-                  "type": "number",
-                  "minimum": 0
+            "pointerEventsThrottling": {
+              "type": "array",
+              "minItems": 1,
+              "items": {
+                "type": "object",
+                "additionalProperties": false,
+                "required": ["fromNbUser", "minDistDelta", "maxFreq"],
+                "properties": {
+                  "fromNbUser": {
+                    "type": "number",
+                    "minimum": 0
+                  },
+                  "minDistDelta": {
+                    "type": "number",
+                    "minimum": 0
+                  },
+                  "maxFreq": {
+                    "type": "number",
+                    "minimum": 0
+                  }
                 }
               }
             },

scripts/utils.js

@@ -44,11 +44,28 @@ function getConfig(path) {
  */
 function isConfigValid(config, warn = true) {
     const validate = ajv.compile(configSchema);
-    const isValid = validate(config);
+    const isValidAgainstSchema = validate(config);
 
-    if (!isValid && warn) console.warn(validate.errors);
+    if (!isValidAgainstSchema && warn) console.warn(validate.errors);
 
-    return isValid;
+    let structureIsValid = false;
+    try {
+        structureIsValid = config.frontend.performance.pointerEventsThrottling.some(
+            (item) => item.fromNbUser === 0
+        );
+    } catch (e) {
+        if (!e instanceof TypeError) {
+            throw e;
+        }
+    }
+
+    if (!structureIsValid && warn)
+        console.warn(
+            "At least one item under frontend.performance.pointerEventsThrottling" +
+                "must have fromNbUser set to 0"
+        );
+
+    return isValidAgainstSchema && structureIsValid;
 }
 
 /**