import { useState, useEffect } from 'react';
import { dataService } from '@/services/dataService';
import { IndJob } from '@/lib/types';

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

  useEffect(() => {
    const loadJobs = async () => {
      try {
        setLoading(true);
        await dataService.loadJobs();
        setError(null);
      } catch (err) {
        setError(err instanceof Error ? err.message : 'Failed to load jobs');
      } finally {
        setLoading(false);
      }
    };

    loadJobs();

    const unsubscribe = dataService.subscribe(() => {
      setJobs(dataService.getJobs());
    });

    return unsubscribe;
  }, []);

  return {
    jobs,
    loading,
    error,
    createJob: dataService.createJob.bind(dataService),
    updateJob: dataService.updateJob.bind(dataService),
    deleteJob: dataService.deleteJob.bind(dataService),
    createTransaction: dataService.createTransaction.bind(dataService),
    createMultipleTransactions: dataService.createMultipleTransactions.bind(dataService),
    updateTransaction: dataService.updateTransaction.bind(dataService),
    deleteTransaction: dataService.deleteTransaction.bind(dataService),
    createBillItem: dataService.createBillItem.bind(dataService),
    createMultipleBillItems: dataService.createMultipleBillItems.bind(dataService)
  };
}

export function useJob(jobId: string | null) {
  const [job, setJob] = useState<IndJob | null>(null);

  useEffect(() => {
    if (!jobId) {
      setJob(null);
      return;
    }

    const updateJob = () => {
      setJob(dataService.getJob(jobId));
    };

    updateJob();

    const unsubscribe = dataService.subscribe(updateJob);
    return unsubscribe;
  }, [jobId]);

  return job;
}