/**
 * @fileoverview Conversation management hook
 * @module hooks/useConversations
 */

import { useCallback, useMemo } from "react";
import { useChatbot } from "./useChatbot";
import type { Conversation } from "../core/contexts/ChatbotContext";

export interface UseConversationsReturn {
  conversations: Conversation[];
  currentConversation: Conversation | null;
  startConversation: (title?: string) => Promise<Conversation>;
  selectConversation: (conversationId: string) => Promise<void>;
  deleteConversation: (conversationId: string) => Promise<void>;
  getConversation: (conversationId: string) => Conversation | undefined;
  conversationCount: number;
}

export function useConversations(): UseConversationsReturn {
  const {
    conversations,
    currentConversation,
    startConversation,
    selectConversation,
    deleteConversation,
  } = useChatbot();

  const getConversation = useCallback(
    (conversationId: string) => {
      return conversations.find((conv) => conv.id === conversationId);
    },
    [conversations]
  );

  const conversationCount = useMemo(
    () => conversations.length,
    [conversations]
  );

  return {
    conversations,
    currentConversation,
    startConversation,
    selectConversation,
    deleteConversation,
    getConversation,
    conversationCount,
  };
}