Add getRoles()

src/pages/chat/chat.ts

@@ -560,6 +560,40 @@ class ChatElement extends HTMLElement {
         roleElement.appendChild(memberList);
     }
     
+    async getRoles(process: Process): Promise<any | null> {
+        const service = await Services.getInstance();
+        // Get the `commited_in` value of the last state and remove it from the array
+        const currentCommitedIn = process.states.pop()?.commited_in;
+
+        if (currentCommitedIn === undefined) {
+            return null; // No states available
+        }
+
+        // Find the last state where `commited_in` is different
+        let lastDifferentState = process.states.findLast(
+            state => state.commited_in !== currentCommitedIn
+        );
+
+        if (!lastDifferentState) {
+            // It means that we only have one state that is not commited yet, that can happen with process we just created
+            // let's assume that the right description is in the last concurrent state and not handle the (arguably rare) case where we have multiple concurrent states on a creation
+            lastDifferentState = process.states.pop();
+        }
+
+        // Take the roles out of the state
+        const roles = lastDifferentState!.pcd_commitment['roles'];
+        if (roles) {
+            const userDiff = await service.getDiffByValue(roles);
+            if (userDiff) {
+                console.log("Successfully retrieved userDiff:", userDiff);
+                return userDiff.new_value;
+            } else {
+                console.log("Failed to retrieve a non-null userDiff.");
+            }
+        }
+
+        return null;
+    }
 
     private async loadGroupList(processId: string): Promise<void> {
         console.log('Loading group list with processId:', processId);