import { useState, useCallback } from "react";
import {
  getIncidents,
  createIncident,
  updateIncident,
  deleteIncident,
} from "@/lib/db";
import type { Incident, IncidentDraft } from "@/types/incident";

export function useIncidents() {
  const [incidents, setIncidents] = useState<Incident[]>([]);
  const [loading, setLoading] = useState(false);

  const refresh = useCallback(async (limit = 10) => {
    setLoading(true);
    const data = await getIncidents(limit);
    setIncidents(data);
    setLoading(false);
  }, []);

  const add = useCallback(async (draft: IncidentDraft) => {
    const created = await createIncident(draft);
    setIncidents((prev) => [created, ...prev]);
    return created;
  }, []);

  const update = useCallback(
    async (id: string, updates: Partial<IncidentDraft>) => {
      await updateIncident(id, updates);
      setIncidents((prev) =>
        prev.map((inc) =>
          inc.id === id ? { ...inc, ...updates, updatedAt: new Date().toISOString() } : inc
        )
      );
    },
    []
  );

  const remove = useCallback(async (id: string) => {
    await deleteIncident(id);
    setIncidents((prev) => prev.filter((inc) => inc.id !== id));
  }, []);

  return { incidents, loading, refresh, add, update, remove };
}