refactor(data): merge DTO models into schemas

src/data/schemas/chat/response/chat_send_response.ts

@@ -10,7 +10,12 @@ import {
   numberOrZero,
   stringOrEmpty,
 } from "../../nullable-defaults";
-import { ChatImageSchema, ChatLockDetailSchema } from "../chat_payloads";
+import {
+  ChatImageSchema,
+  ChatLockDetailSchema,
+  type ChatImageData,
+  type ChatLockDetailData,
+} from "../chat_payloads";
 
 export const ChatSendResponseSchema = z.object({
   reply: stringOrEmpty,
@@ -30,3 +35,35 @@ export const ChatSendResponseSchema = z.object({
 
 export type ChatSendResponseInput = z.input<typeof ChatSendResponseSchema>;
 export type ChatSendResponseData = z.output<typeof ChatSendResponseSchema>;
+
+export class ChatSendResponse {
+  declare readonly reply: string;
+  declare readonly audioUrl: string;
+  declare readonly messageId: string;
+  declare readonly timestamp: number;
+  declare readonly image: ChatImageData;
+  declare readonly lockDetail: ChatLockDetailData;
+  declare readonly canSendMessage: boolean;
+  declare readonly creditBalance: number;
+  declare readonly creditsCharged: number;
+  declare readonly requiredCredits: number;
+  declare readonly shortfallCredits: number;
+
+  private constructor(input: ChatSendResponseInput) {
+    const data = ChatSendResponseSchema.parse(input);
+    Object.assign(this, data);
+    Object.freeze(this);
+  }
+
+  static from(input: ChatSendResponseInput): ChatSendResponse {
+    return new ChatSendResponse(input);
+  }
+
+  static fromJson(json: unknown): ChatSendResponse {
+    return ChatSendResponse.from(json as ChatSendResponseInput);
+  }
+
+  toJson(): ChatSendResponseData {
+    return ChatSendResponseSchema.parse(this);
+  }
+}