chat endpoints

src/main/java/com/bernd/ChatController.java

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+package com.bernd;
+
+import com.bernd.model.Chat;
+import com.bernd.model.ChatRequest;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.http.ResponseEntity;
+import org.springframework.stereotype.Controller;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestBody;
+
+@Controller
+public class ChatController {
+
+    @Autowired
+    Chats chats;
+
+    @GetMapping("/chat")
+    public Chat getChat(@RequestBody String id) {
+        return chats.get(id);
+    }
+
+    @PostMapping("/sendChat")
+    public ResponseEntity<?> sendChat(@RequestBody ChatRequest chatRequest) {
+        chats.put(chatRequest.chat());
+        return ResponseEntity.ok().build();
+    }
+
+}

src/main/java/com/bernd/Chats.java

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+package com.bernd;
+
+import com.bernd.model.Chat;
+import com.bernd.model.Game;
+import org.springframework.stereotype.Component;
+
+import java.util.LinkedHashMap;
+import java.util.List;
+import java.util.Map;
+
+@Component
+public class Chats {
+  private final Map<String, Chat> map = new LinkedHashMap<>();
+
+  Chat get(String id) {
+    return map.get(id);
+  }
+
+  Chat put(Chat chat) {
+    map.put(chat.getId(), chat);
+    return chat;
+  }
+
+  List<Chat> chats() {
+    return List.copyOf(map.values());
+  }
+}

src/main/java/com/bernd/model/Chat.java

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+package com.bernd.model;
+
+import java.util.List;
+
+public class Chat {
+
+    private String id;
+    private List<ChatMessage> chatMessages;
+
+    public Chat(){
+    }
+
+    public Chat(String id, List<ChatMessage> chatMessages){
+        this.id = id;
+        this.chatMessages = chatMessages;
+    }
+
+    public String getId() {
+        return id;
+    }
+
+    public void setId(String id) {
+        this.id = id;
+    }
+
+    public List<ChatMessage> getChatMessages() {
+        return chatMessages;
+    }
+
+    public void setChatMessages(List<ChatMessage> chatMessages) {
+        this.chatMessages = chatMessages;
+    }
+}

src/main/java/com/bernd/model/ChatMessage.java

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+package com.bernd.model;
+
+public class ChatMessage {
+
+    private String message;
+    private String messageId;
+
+    public ChatMessage(String message, String messageId) {
+        this.message = message;
+        this.messageId = messageId;
+    }
+
+    public String getMessage() {
+        return message;
+    }
+
+    public void setMessage(String message) {
+        this.message = message;
+    }
+
+    public String getMessageId() {
+        return messageId;
+    }
+
+    public void setMessageId(String messageId) {
+        this.messageId = messageId;
+    }
+}

src/main/java/com/bernd/model/ChatRequest.java

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+package com.bernd.model;
+
+public record ChatRequest(
+        Chat chat) {
+}