import { inject, Injectable } from '@angular/core';
import { HttpClient } from '@angular/common/http';
import { API_URL } from '../core/tokens/api-urls';
import { ChatCollection, MessageCollection, MessageResponse, ChatResponse } from './chat.types';

@Injectable({
  providedIn: 'root',
})
export class ChatService {
  private http = inject(HttpClient);
  private apiUrl = inject(API_URL);

  public newChat() {
    return this.http.post<ChatResponse>(`${this.apiUrl}/chats`, {});
  }

  public sendMessage(id: string, message: string) {
    return this.http.post<MessageResponse>(`${this.apiUrl}/chats/${id}/messages`, {
      prompt: message,
    });
  }

  public getMessages(id: string, page: number = 1) {
    return this.http.get<MessageCollection>(`${this.apiUrl}/chats/${id}/messages?page=${page}`);
  }

  public getChats() {
    return this.http.get<ChatCollection>(`${this.apiUrl}/chats`);
  }
}