feat(eventsub): add whisper received topic

eventsub-common/src/main/java/com/github/twitch4j/eventsub/domain/Whisper.java

@@ -0,0 +1,16 @@
+package com.github.twitch4j.eventsub.domain;
+
+import lombok.AccessLevel;
+import lombok.Data;
+import lombok.Setter;
+
+@Data
+@Setter(AccessLevel.PRIVATE)
+public class Whisper {
+
+    /**
+     * The body of the whisper message.
+     */
+    private String text;
+
+}

eventsub-common/src/main/java/com/github/twitch4j/eventsub/events/EventSubUserFromToEvent.java

@@ -0,0 +1,47 @@
+package com.github.twitch4j.eventsub.events;
+
+import lombok.AccessLevel;
+import lombok.AllArgsConstructor;
+import lombok.Data;
+import lombok.EqualsAndHashCode;
+import lombok.NoArgsConstructor;
+import lombok.Setter;
+
+@Data
+@Setter(AccessLevel.PRIVATE)
+@NoArgsConstructor
+@AllArgsConstructor
+@EqualsAndHashCode(callSuper = false)
+public class EventSubUserFromToEvent extends EventSubEvent {
+
+    /**
+     * The user ID that triggered the event.
+     */
+    private String fromUserId;
+
+    /**
+     * The user login name that triggered the event.
+     */
+    private String fromUserLogin;
+
+    /**
+     * The user display name that triggered the event.
+     */
+    private String fromUserName;
+
+    /**
+     * The user ID that received the event.
+     */
+    private String toUserId;
+
+    /**
+     * The user login name that received the event.
+     */
+    private String toUserLogin;
+
+    /**
+     * The user display name that received the event.
+     */
+    private String toUserName;
+
+}

eventsub-common/src/main/java/com/github/twitch4j/eventsub/events/WhisperReceivedEvent.java

@@ -0,0 +1,26 @@
+package com.github.twitch4j.eventsub.events;
+
+import com.github.twitch4j.eventsub.domain.Whisper;
+import lombok.AccessLevel;
+import lombok.Data;
+import lombok.EqualsAndHashCode;
+import lombok.Setter;
+import lombok.ToString;
+
+@Data
+@Setter(AccessLevel.PRIVATE)
+@ToString(callSuper = true)
+@EqualsAndHashCode(callSuper = true)
+public class WhisperReceivedEvent extends EventSubUserFromToEvent {
+
+    /**
+     * The whisper ID.
+     */
+    private String whisperId;
+
+    /**
+     * Object containing whisper information.
+     */
+    private Whisper whisper;
+
+}

eventsub-common/src/main/java/com/github/twitch4j/eventsub/subscriptions/SubscriptionTypes.java

@@ -74,6 +74,7 @@ public class SubscriptionTypes {
     public final UserAuthorizationGrantType USER_AUTHORIZATION_GRANT;
     public final UserAuthorizationRevokeType USER_AUTHORIZATION_REVOKE;
     public final UserUpdateType USER_UPDATE;
+    public final WhisperReceivedType WHISPER_RECEIVE;
 
     public SubscriptionType<?, ?, ?> getSubscriptionType(String subTypeName, String subTypeVersion) {
         return SUBSCRIPTION_TYPES.get(subTypeName + ':' + subTypeVersion);
@@ -141,7 +142,8 @@ public class SubscriptionTypes {
                 UNBAN_REQUEST_RESOLVE = new UnbanRequestResolveType(),
                 USER_AUTHORIZATION_GRANT = new UserAuthorizationGrantType(),
                 USER_AUTHORIZATION_REVOKE = new UserAuthorizationRevokeType(),
-                USER_UPDATE = new UserUpdateType()
+                USER_UPDATE = new UserUpdateType(),
+                WHISPER_RECEIVE = new WhisperReceivedType()
             ).collect(Collectors.toMap(type -> type.getName() + ':' + type.getVersion(), Function.identity()))
         );
     }

eventsub-common/src/main/java/com/github/twitch4j/eventsub/subscriptions/WhisperReceivedType.java

@@ -0,0 +1,34 @@
+package com.github.twitch4j.eventsub.subscriptions;
+
+import com.github.twitch4j.eventsub.condition.UserEventSubCondition;
+import com.github.twitch4j.eventsub.events.WhisperReceivedEvent;
+
+/**
+ * Fires when anyone whispers the specified user.
+ * <p>
+ * Must have oauth scope user:read:whispers or user:manage:whispers.
+ *
+ * @see com.github.twitch4j.auth.domain.TwitchScopes#HELIX_USER_WHISPERS_READ
+ * @see com.github.twitch4j.auth.domain.TwitchScopes#HELIX_USER_WHISPERS_MANAGE
+ */
+public class WhisperReceivedType implements SubscriptionType<UserEventSubCondition, UserEventSubCondition.UserEventSubConditionBuilder<?, ?>, WhisperReceivedEvent> {
+    @Override
+    public String getName() {
+        return "user.whisper.message";
+    }
+
+    @Override
+    public String getVersion() {
+        return "1";
+    }
+
+    @Override
+    public UserEventSubCondition.UserEventSubConditionBuilder<?, ?> getConditionBuilder() {
+        return UserEventSubCondition.builder();
+    }
+
+    @Override
+    public Class<WhisperReceivedEvent> getEventClass() {
+        return WhisperReceivedEvent.class;
+    }
+}