fix(WalletConnect): Fixing disconnect notifications

The disconnect notifications were operating on `WalletConnectService.currentSessionProposal`. This object stores the current session object on connect, but it's not necessarily the same session the user wants to disconnect.
To fix this I'm getting the active sessions from status-go when the disconnect request is received (from Status or dapp). If the topic matches to any connection topic owned by the users accounts we'll show a notification.

src/app/modules/shared_modules/wallet_connect/controller.nim

@@ -1,5 +1,5 @@
 import NimQml
-import chronicles
+import chronicles, times, json
 
 import app_service/service/wallet_connect/service as wallet_connect_service
 import app_service/service/wallet_account/service as wallet_account_service
@@ -47,6 +47,20 @@ QtObject:
       self.dappsListReceived(res)
       return true
 
+  proc activeSessionsReceived(self: Controller, activeSessionsJson: string) {.signal.}
+
+  # Emits signal activeSessionsReceived with the list of active sessions
+  # TODO: make it async
+  proc getActiveSessions(self: Controller): bool {.slot.} =
+    let validAtTimestamp = now().toTime().toUnix()
+    let res = self.service.getActiveSessions(validAtTimestamp)
+    if res.isNil:
+      return false
+    else:
+      let resultStr = $res
+      self.activeSessionsReceived(resultStr)
+      return true
+
   proc userAuthenticationResult*(self: Controller, topic: string, id: string, error: bool, password: string, pin: string, payload: string) {.signal.}
 
   # Beware, it will fail if an authentication is already in progress

src/app_service/service/wallet_connect/service.nim

@@ -115,6 +115,11 @@ QtObject:
     # TODO #14588: call it async
     return status_go.getDapps(validAtEpoch, testChains)
   
+  proc getActiveSessions*(self: Service, validAtTimestamp: int64): JsonNode =
+    # TODO #14588: call it async
+    return status_go.getActiveSessions(validAtTimestamp)
+    
+
   # Will fail if another authentication is in progress
   proc authenticateUser*(self: Service, keyUid: string, callback: AuthenticationResponseFn): bool =
     if self.authenticationCallback != nil:

src/backend/wallet_connect.nim

@@ -18,7 +18,7 @@ rpc(disconnectWalletConnectSession, "wallet"):
   topic: string
 
 rpc(getWalletConnectActiveSessions, "wallet"):
-  validAtTimestamp: int
+  validAtTimestamp: int64
 
 rpc(hashMessageEIP191, "wallet"):
   message: string
@@ -50,13 +50,14 @@ proc disconnectSession*(topic: string): bool =
     return false
 
 # returns nil if error
-proc getActiveSessions*(validAtTimestamp: int): JsonNode =
+proc getActiveSessions*(validAtTimestamp: int64): JsonNode =
   try:
     let rpcRes = getWalletConnectActiveSessions(validAtTimestamp)
+    
     if(not isSuccessResponse(rpcRes)):
       return nil
 
-    let jsonResultStr = rpcRes.result.getStr()
+    let jsonResultStr = $rpcRes.result
     if jsonResultStr == "null" or jsonResultStr == "":
       return newJArray()
 

ui/app/AppLayouts/Wallet/services/dapps/WalletConnectService.qml

@@ -210,16 +210,7 @@ QObject {
         }
 
         function onSessionDelete(topic, err) {
-            store.deactivateWalletConnectSession(topic)
-            dappsProvider.updateDapps()
-
-            const app_url = d.currentSessionProposal ? d.currentSessionProposal.params.proposer.metadata.url : "-"
-            const app_domain = StringUtils.extractDomainFromLink(app_url)
-            if(err) {
-                root.displayToastMessage(qsTr("Failed to disconnect from %1").arg(app_domain), true)
-            } else {
-                root.displayToastMessage(qsTr("Disconnected from %1").arg(app_domain), false)
-            }
+            d.disconnectSessionRequested(topic, err)
         }
     }
 
@@ -235,6 +226,54 @@ QObject {
             timeoutTimer.stop()
             root.pairingValidated(state)
         }
+
+        function disconnectSessionRequested(topic, err) {
+            // Get all sessions and filter the active ones for known accounts
+            // Act on the first matching session with the same topic
+            const activeSessionsCallback = (allSessions, success) => {
+                store.activeSessionsReceived.disconnect(activeSessionsCallback)
+                
+                if (!success) {
+                    // TODO #14754: implement custom dApp notification
+                    d.notifyDappDisconnect("-", true)
+                    return
+                }
+                
+                // Convert to original format
+                const webSdkSessions = allSessions.map((session) => {
+                    return JSON.parse(session.sessionJson)
+                })
+
+                const sessions = DAppsHelpers.filterActiveSessionsForKnownAccounts(webSdkSessions, root.validAccounts)
+                
+                for (const sessionID in sessions) {
+                    const session = sessions[sessionID]
+                    if (session.topic === topic) {
+                        store.deactivateWalletConnectSession(topic)
+                        dappsProvider.updateDapps()
+                        
+                        const dappUrl = session.peer.metadata.url ?? "-"
+                        d.notifyDappDisconnect(dappUrl, err)
+                        break
+                    }
+                }
+            }
+
+            store.activeSessionsReceived.connect(activeSessionsCallback)
+            if (!store.getActiveSessions()) {
+                store.activeSessionsReceived.disconnect(activeSessionsCallback)
+                // TODO #14754: implement custom dApp notification
+            }
+        }
+        
+        function notifyDappDisconnect(dappUrl, err) {
+            const appDomain = StringUtils.extractDomainFromLink(dappUrl)
+            if(err) {
+                root.displayToastMessage(qsTr("Failed to disconnect from %1").arg(appDomain), true)
+            } else {
+                root.displayToastMessage(qsTr("Disconnected from %1").arg(appDomain), false)
+            }
+        }
     }
 
     Component.onCompleted: {

ui/imports/shared/stores/DAppsStore.qml

@@ -8,6 +8,7 @@ QObject {
     required property var controller
     /// \c dappsJson serialized from status-go.wallet.GetDapps
     signal dappsListReceived(string dappsJson)
+    signal activeSessionsReceived(var activeSessionsJsonObj, bool success)
     signal userAuthenticated(string topic, string id, string password, string pin, string payload)
     signal userAuthenticationFailed(string topic, string id)
 
@@ -107,6 +108,12 @@ QObject {
         return controller.getDapps()
     }
     
+    /// \c getActiveSessions triggers an async response to \c activeSessionsReceived
+    /// \returns true if the request was sent successfully
+    function getActiveSessions() {
+        return controller.getActiveSessions()
+    }
+
     function hexToDec(hex) {
         return controller.hexToDecBigString(hex)
     }
@@ -124,6 +131,17 @@ QObject {
             root.dappsListReceived(dappsJson)
         }
 
+        function onActiveSessionsReceived(activeSessionsJson) {
+            try {
+                const jsonObj = JSON.parse(activeSessionsJson)
+                root.activeSessionsReceived(jsonObj, true)
+            } catch (e) {
+                console.error("Failed to parse activeSessionsJson", e)
+                root.activeSessionsReceived({}, false)
+                return
+            }
+        }
+
         function onUserAuthenticationResult(topic, id, success, password, pin, payload) {
             if (success) {
                 root.userAuthenticated(topic, id, password, pin, payload)