Transform CallProvider into 'CallManager' hook, review WebSocket messages for calls

- These changes allowed to remove more cascading effects. It is now possible to reactivate StrictMode. Downside is we lost the 'optional context' of CallProvider: the call logic will be loaded even if there is no call.
- The WebSocket messages have been changed so the client does not have to know the conversation members before a call. Previously, the client had to fetch the conversation members for a call, which was causing cascading effects.
- Accidentally, moving the handling of conversation members to the server added some logic for calls with more than two participants, but it is still not ready to work.

* CallProvider.tsx will be renamed in next commit in order to make it easier to track its file history

Change-Id: Iae711009adafce065ac3defc1c91c7ca0f37898c
diff --git a/common/src/enums/websocket-message-type.ts b/common/src/enums/websocket-message-type.ts
index 238f443..b2d729c 100644
--- a/common/src/enums/websocket-message-type.ts
+++ b/common/src/enums/websocket-message-type.ts
@@ -20,10 +20,18 @@
   ConversationRequest = 'conversation-request',
   ConversationView = 'conversation-view',
   ComposingStatus = 'composing-status',
-  CallBegin = 'call-begin',
-  CallAccept = 'call-accept',
-  CallEnd = 'call-end',
-  WebRtcOffer = 'webrtc-offer',
-  WebRtcAnswer = 'webrtc-answer',
-  WebRtcIceCandidate = 'webrtc-ice-candidate',
+
+  // calls (in the order they should be sent)
+  sendCallInvite = 'sendCallInvite',
+  onCallInvite = 'onCallInvite',
+  sendCallExit = 'sendCallExit', // can be sent anytime after invite
+  onCallExit = 'onCallExit',
+  sendCallJoin = 'sendCallJoin',
+  onCallJoin = 'onCallJoin',
+  sendWebRtcOffer = 'sendWebRtcOffer',
+  onWebRtcOffer = 'onWebRtcOffer',
+  sendWebRtcAnswer = 'sendWebRtcAnswer',
+  onWebRtcAnswer = 'onWebRtcAnswer',
+  sendWebRtcIceCandidate = 'sendWebRtcIceCandidate',
+  onWebRtcIceCandidate = 'onWebRtcIceCandidate',
 }
diff --git a/common/src/interfaces/websocket-interfaces.ts b/common/src/interfaces/websocket-interfaces.ts
index f680e16..82ac1e0 100644
--- a/common/src/interfaces/websocket-interfaces.ts
+++ b/common/src/interfaces/websocket-interfaces.ts
@@ -18,7 +18,7 @@
 import { Message } from './conversation.js';
 
 export interface ContactMessage {
-  contactId: string;
+  senderContactId: string;
 }
 
 export interface ConversationMessage {
@@ -36,14 +36,29 @@
   isWriting: boolean;
 }
 
-export interface CallAction extends ContactMessage {
+export interface WithSender {
+  senderId: string;
+}
+
+export interface WithReceiver {
+  receiverId: string;
+}
+
+export interface CallAction {
   conversationId: string;
 }
 
-export interface CallBegin extends CallAction {
+export interface CallInvite extends CallAction {
   withVideoOn: boolean;
 }
 
+// eslint-disable-next-line @typescript-eslint/no-empty-interface
+export interface CallJoin extends CallAction {}
+
+export interface CallExit {
+  conversationId: string;
+}
+
 export interface WebRtcSdp extends CallAction {
   sdp: RTCSessionDescriptionInit;
 }
diff --git a/common/src/interfaces/websocket-message.ts b/common/src/interfaces/websocket-message.ts
index b908737..f85ea5e 100644
--- a/common/src/interfaces/websocket-message.ts
+++ b/common/src/interfaces/websocket-message.ts
@@ -18,26 +18,37 @@
 import { WebSocketMessageType } from '../enums/websocket-message-type.js';
 import { IConversationRequest } from './conversation.js';
 import {
-  CallAction,
-  CallBegin,
+  CallExit,
+  CallInvite,
+  CallJoin,
   ComposingStatus,
   ConversationMessage,
   ConversationView,
   WebRtcIceCandidate,
   WebRtcSdp,
+  WithReceiver,
+  WithSender,
 } from './websocket-interfaces.js';
 
 export interface WebSocketMessageTable {
-  [WebSocketMessageType.CallAccept]: CallAction;
-  [WebSocketMessageType.CallBegin]: CallBegin;
-  [WebSocketMessageType.CallEnd]: CallAction;
   [WebSocketMessageType.ComposingStatus]: ComposingStatus;
   [WebSocketMessageType.ConversationMessage]: ConversationMessage;
   [WebSocketMessageType.ConversationRequest]: IConversationRequest;
   [WebSocketMessageType.ConversationView]: ConversationView;
-  [WebSocketMessageType.WebRtcOffer]: WebRtcSdp;
-  [WebSocketMessageType.WebRtcAnswer]: WebRtcSdp;
-  [WebSocketMessageType.WebRtcIceCandidate]: WebRtcIceCandidate;
+
+  // calls (in the order they should be sent)
+  [WebSocketMessageType.sendCallInvite]: CallInvite;
+  [WebSocketMessageType.onCallInvite]: CallInvite & WithSender;
+  [WebSocketMessageType.sendCallExit]: CallExit; // can be sent any time after invite
+  [WebSocketMessageType.onCallExit]: CallExit & WithSender;
+  [WebSocketMessageType.sendCallJoin]: CallJoin;
+  [WebSocketMessageType.onCallJoin]: CallJoin & WithSender;
+  [WebSocketMessageType.sendWebRtcOffer]: WebRtcSdp & WithReceiver;
+  [WebSocketMessageType.onWebRtcOffer]: WebRtcSdp & WithSender;
+  [WebSocketMessageType.sendWebRtcAnswer]: WebRtcSdp & WithReceiver;
+  [WebSocketMessageType.onWebRtcAnswer]: WebRtcSdp & WithSender;
+  [WebSocketMessageType.sendWebRtcIceCandidate]: WebRtcIceCandidate & WithReceiver;
+  [WebSocketMessageType.onWebRtcIceCandidate]: WebRtcIceCandidate & WithSender;
 }
 
 export interface WebSocketMessage<T extends WebSocketMessageType> {