import { useEffect } from 'react';

import { getChatLogs, getLeads } from '@/lib/api';
import { mapLeadRecordToStoreLead } from '@/lib/crmMappers';
import { useStore } from '@/store/useStore';
import type { ChatMessage } from '@/types';

export function useCrmBootstrap() {
  const { setLeads, replaceMessages } = useStore();

  useEffect(() => {
    let cancelled = false;
    const hydrate = async () => {
      try {
        const leads = await getLeads();
        if (cancelled) return;
        setLeads(leads.map(mapLeadRecordToStoreLead));

        const messageEntries = await Promise.all(
          leads.slice(0, 25).map(async (lead) => {
            const logs = await getChatLogs(lead.id);
            return [
              lead.id,
              logs.map((log): ChatMessage => ({
                id: log.id,
                sender: log.sender === 'lead' ? 'user' : 'oracle',
                content: log.content,
                timestamp: new Date(log.created_at ?? Date.now()),
              })),
            ] as const;
          }),
        );
        if (!cancelled) {
          replaceMessages(Object.fromEntries(messageEntries));
        }
      } catch {
        // Keep the current in-app fallback state if the CRM backend is unreachable.
      }
    };

    void hydrate();
    return () => {
      cancelled = true;
    };
  }, [replaceMessages, setLeads]);
}