"use client";

import { useState, useEffect, useCallback } from "react";
import { getJobsPaginated, deleteJob, updateJob, createJob } from "@/lib/api/job.api";
import { mapJobsApiResponse } from "@/lib/api/mappers/job.mappers";
import type { JobRow, CreateJobDto, UpdateJobDto } from "@/lib/api/types/job.types";

export function useJobs() {
  const [jobs, setJobs]     = useState<JobRow[]>([]);
  const [loading, setLoading] = useState(false);
  const [error, setError]   = useState<string | null>(null);

  const refresh = useCallback(() => {
    setLoading(true);
    setError(null);
    getJobsPaginated({ page: 1, limit: 1000 })
      .then((data) => setJobs(mapJobsApiResponse(data.data)))
      .catch((err) => setError(err.message))
      .finally(() => setLoading(false));
  }, []);

  useEffect(() => { refresh(); }, [refresh]);

  return { jobs, loading, error, refresh };
}

export function useJobMutations(onSuccess?: () => void) {
  const [saving, setSaving]             = useState(false);
  const [deleting, setDeleting]         = useState(false);
  const [mutationError, setMutationError] = useState<string | null>(null);

  const create = async (dto: CreateJobDto) => {
    setSaving(true); setMutationError(null);
    try { const r = await createJob(dto); onSuccess?.(); return r; }
    catch (err: any) { setMutationError(err.message); return null; }
    finally { setSaving(false); }
  };

  const update = async (id: number, dto: UpdateJobDto) => {
    setSaving(true); setMutationError(null);
    try { const r = await updateJob(id, dto); onSuccess?.(); return r; }
    catch (err: any) { setMutationError(err.message); return null; }
    finally { setSaving(false); }
  };

  const remove = async (id: number) => {
    setDeleting(true); setMutationError(null);
    try { await deleteJob(id); onSuccess?.(); return true; }
    catch (err: any) { setMutationError(err.message); return false; }
    finally { setDeleting(false); }
  };

  return { create, update, remove, saving, deleting, mutationError };
}