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app/Http/Controllers/DisputeController.php

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+<?php
+
+namespace App\Http\Controllers;
+
+use App\Models\Dispute;
+use App\Models\WorkOrder;
+use Illuminate\Http\RedirectResponse;
+use Illuminate\Http\Request;
+use Illuminate\View\View;
+
+class DisputeController extends Controller
+{
+    public function show(Request $request, Dispute $dispute): View
+    {
+        $dispute->load('workOrder.buyer', 'workOrder.provider', 'openedBy');
+
+        abort_unless(
+            in_array($request->user()->id, [$dispute->workOrder->buyer_id, $dispute->workOrder->provider_id], true)
+                || $request->user()->hasRole('admin'),
+            403
+        );
+
+        return view('disputes.show', ['dispute' => $dispute]);
+    }
+
+    public function store(Request $request, WorkOrder $workOrder): RedirectResponse
+    {
+        abort_unless(in_array($request->user()->id, [$workOrder->buyer_id, $workOrder->provider_id], true), 403);
+
+        $data = $request->validate([
+            'summary' => ['required', 'string', 'max:255'],
+            'claim' => ['required', 'string'],
+            'evidence_notes' => ['nullable', 'string'],
+        ]);
+
+        $dispute = $workOrder->disputes()->create($data + [
+            'opened_by_id' => $request->user()->id,
+            'status' => 'open',
+        ]);
+
+        $workOrder->update(['status' => 'disputed']);
+
+        return redirect()->route('disputes.show', $dispute)->with('status', 'Dispute opened for peer review.');
+    }
+}