Refactor: Centralize database operations

Consolidated database interaction logic into service files. Streamlined job and transaction creation/update processes to minimize database requests, improving efficiency.

src/hooks/useDataService.ts

@@ -0,0 +1,69 @@
+
+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;
+}