Merge pull request #86 from soramitsu/FLW-2976-Stop-processes-after-a-long-time-of-use

FLW-2976: Connect and disconnect logic

Author: DRadmir

FearlessUtils/Classes/Network/JSONRPCEngine.swift

@@ -95,6 +95,7 @@ public final class JSONRPCSubscription<T: Decodable>: JSONRPCSubscribing {
 }
 
 public protocol JSONRPCEngine: AnyObject {
+    var url: URL? { get set }
     var pendingEngineRequests: [JSONRPCRequest] { get }
 
     func callMethod<P: Encodable, T: Decodable>(
@@ -116,8 +117,10 @@ public protocol JSONRPCEngine: AnyObject {
 
     func generateRequestId() -> UInt16
     func addSubscription(_ subscription: JSONRPCSubscribing)
-    func connect(with pendingRequests: [JSONRPCRequest])
     func reconnect(url: URL)
+    
+    func connectIfNeeded()
+    func disconnectIfNeeded()
 }
 
 public extension JSONRPCEngine {

FearlessUtils/Classes/Network/WebSocketEngine+Protocol.swift

@@ -74,12 +74,6 @@ extension WebSocketEngine: JSONRPCEngine {
         mutex.unlock()
     }
 
-    public func connect(with pendingRequests: [JSONRPCRequest]) {
-        pendingRequests.forEach {
-            updateConnectionForRequest($0)
-        }
-    }
-    
     public func reconnect(url: URL) {
         self.connection.delegate = nil