From a89c799442ab4dc205b7494491c9b2e2201736ad Mon Sep 17 00:00:00 2001
From: Robert Herber <robert@kingstinct.com>
Date: Thu, 7 Nov 2024 17:17:18 +0100
Subject: [PATCH] Add doesSelectionHaveOverlap

---
 ios/ReactNativeDeviceActivityModule.swift | 45 +++++++++++++++++++++++
 src/ReactNativeDeviceActivity.types.ts    |  3 ++
 src/ReactNativeDeviceActivityModule.ts    |  6 +++
 3 files changed, 54 insertions(+)

diff --git a/ios/ReactNativeDeviceActivityModule.swift b/ios/ReactNativeDeviceActivityModule.swift
index bf8afd0..2b274d8 100644
--- a/ios/ReactNativeDeviceActivityModule.swift
+++ b/ios/ReactNativeDeviceActivityModule.swift
@@ -210,6 +210,51 @@ public class ReactNativeDeviceActivityModule: Module {
       return filteredDict
     }
       
+      Function("doesSelectionHaveOverlap") { (familyActivitySelections: [String]) in
+          let decodedFamilyActivitySelections: [FamilyActivitySelection] = familyActivitySelections.map { familyActivitySelection in
+            let decoder = JSONDecoder()
+            let data = Data(base64Encoded: familyActivitySelection)
+            do {
+              let activitySelection = try decoder.decode(FamilyActivitySelection.self, from: data!)
+              return activitySelection
+            }
+            catch {
+              return FamilyActivitySelection()
+            }
+          }
+          
+          let hasOverlap = decodedFamilyActivitySelections.contains { selection in
+              return decodedFamilyActivitySelections.contains { compareWith in
+                  // if it's the same instance - skip comparison
+                  if(compareWith == selection){
+                      return false
+                  }
+                  
+                  if(compareWith.applicationTokens.contains(where: { token in
+                      return selection.applicationTokens.contains(token)
+                  } )){
+                      return true
+                  }
+                  
+                  if(compareWith.categoryTokens.contains(where: { token in
+                      return selection.categoryTokens.contains(token)
+                  } )){
+                      return true
+                  }
+                  
+                  if(compareWith.webDomainTokens.contains(where: { token in
+                      return selection.webDomainTokens.contains(token)
+                  } )){
+                      return true
+                  }
+                  
+                  return false
+              }
+          }
+          
+          return hasOverlap
+      }
+      
       Function("authorizationStatus") {
           let currentStatus = AuthorizationCenter.shared.authorizationStatus
 
diff --git a/src/ReactNativeDeviceActivity.types.ts b/src/ReactNativeDeviceActivity.types.ts
index daee89f..917e0dd 100644
--- a/src/ReactNativeDeviceActivity.types.ts
+++ b/src/ReactNativeDeviceActivity.types.ts
@@ -91,6 +91,9 @@ export type ReactNativeDeviceActivityNativeModule = {
   revokeAuthorization: () => PromiseLike<void> | void;
   blockAllApps: () => PromiseLike<void> | void;
   unblockApps: () => PromiseLike<void> | void;
+  doesSelectionHaveOverlap: (
+    familyActivitySelections: FamilyActivitySelection[],
+  ) => boolean;
   updateShieldConfiguration: (
     shieldConfiguration: ShieldConfiguration,
   ) => PromiseLike<void> | void;
diff --git a/src/ReactNativeDeviceActivityModule.ts b/src/ReactNativeDeviceActivityModule.ts
index b3005b8..24cba48 100644
--- a/src/ReactNativeDeviceActivityModule.ts
+++ b/src/ReactNativeDeviceActivityModule.ts
@@ -18,10 +18,16 @@ const warnFnNumber = () => {
   return 0;
 };
 
+const warnFnBoolean = () => {
+  console.warn(warnText);
+  return false;
+};
+
 const mockModule: ReactNativeDeviceActivityNativeModule & ProxyNativeModule = {
   isAvailable: () => false,
   requestAuthorization: warnFn,
   revokeAuthorization: warnFn,
+  doesSelectionHaveOverlap: warnFnBoolean,
   updateShieldConfiguration: warnFn,
   unblockApps: warnFn,
   blockAllApps: warnFn,