[FEAT] 實作公共事業費附件上傳管理與更新 UI 協作規範防呆機制

app/Modules/Finance/Controllers/UtilityFeeController.php

@@ -4,8 +4,10 @@ namespace App\Modules\Finance\Controllers;
 
 use App\Http\Controllers\Controller;
 use App\Modules\Finance\Models\UtilityFee;
+use App\Modules\Finance\Models\UtilityFeeAttachment;
 use App\Modules\Finance\Contracts\FinanceServiceInterface;
 use Illuminate\Http\Request;
+use Illuminate\Support\Facades\Storage;
 use Inertia\Inertia;
 
 class UtilityFeeController extends Controller
@@ -103,8 +105,82 @@ class UtilityFeeController extends Controller
             ->event('deleted')
             ->log('deleted');
 
+        // 刪除實體檔案 (如果 cascade 沒處理或是想要手動清理)
+        foreach ($utility_fee->attachments as $attachment) {
+            Storage::disk('public')->delete($attachment->file_path);
+        }
+
         $utility_fee->delete();
         
         return redirect()->back();
     }
+
+    /**
+     * 獲取附件列表
+     */
+    public function attachments(UtilityFee $utility_fee)
+    {
+        return response()->json([
+            'attachments' => $utility_fee->attachments()->orderBy('created_at', 'desc')->get()
+        ]);
+    }
+
+    /**
+     * 上傳附件
+     */
+    public function uploadAttachment(Request $request, UtilityFee $utility_fee)
+    {
+        $request->validate([
+            'file' => 'required|file|mimes:jpeg,jpg,png,webp,pdf|max:2048', // 2MB
+        ]);
+
+        // 檢查數量限制 (最多 3 張)
+        if ($utility_fee->attachments()->count() >= 3) {
+            return response()->json(['message' => '附件數量已達上限 (最多 3 個)'], 422);
+        }
+
+        $file = $request->file('file');
+        $path = $file->store("utility-fee-attachments/{$utility_fee->id}", 'public');
+
+        $attachment = $utility_fee->attachments()->create([
+            'file_path' => $path,
+            'original_name' => $file->getClientOriginalName(),
+            'mime_type' => $file->getMimeType(),
+            'size' => $file->getSize(),
+        ]);
+
+        activity()
+            ->performedOn($utility_fee)
+            ->causedBy(auth()->user())
+            ->event('attachment_uploaded')
+            ->log("uploaded attachment: {$attachment->original_name}");
+
+        return response()->json([
+            'message' => '上傳成功',
+            'attachment' => $attachment
+        ]);
+    }
+
+    /**
+     * 刪除附件
+     */
+    public function deleteAttachment(UtilityFee $utility_fee, UtilityFeeAttachment $attachment)
+    {
+        // 確保附件屬於該費用
+        if ($attachment->utility_fee_id !== $utility_fee->id) {
+            abort(403);
+        }
+
+        Storage::disk('public')->delete($attachment->file_path);
+        
+        $attachment->delete();
+
+        activity()
+            ->performedOn($utility_fee)
+            ->causedBy(auth()->user())
+            ->event('attachment_deleted')
+            ->log("deleted attachment: {$attachment->original_name}");
+
+        return response()->json(['message' => '刪除成功']);
+    }
 }

app/Modules/Finance/Models/UtilityFee.php

@@ -7,9 +7,16 @@ use Illuminate\Database\Eloquent\Model;
 
 class UtilityFee extends Model
 {
-    /** @use HasFactory<\Database\Factories\UtilityFeeFactory> */
     use HasFactory;
 
+    /**
+     * 此公共事業費的附件
+     */
+    public function attachments()
+    {
+        return $this->hasMany(UtilityFeeAttachment::class);
+    }
+
     // 狀態常數
     const STATUS_PENDING = 'pending';
     const STATUS_PAID = 'paid';

app/Modules/Finance/Models/UtilityFeeAttachment.php

@@ -0,0 +1,36 @@
+<?php
+
+namespace App\Modules\Finance\Models;
+
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\Relations\BelongsTo;
+use Illuminate\Support\Facades\Storage;
+
+class UtilityFeeAttachment extends Model
+{
+    protected $fillable = [
+        'utility_fee_id',
+        'file_path',
+        'original_name',
+        'mime_type',
+        'size',
+    ];
+
+    protected $appends = ['url'];
+
+    /**
+     * 附件所属的公共事業費
+     */
+    public function utilityFee(): BelongsTo
+    {
+        return $this->belongsTo(UtilityFee::class);
+    }
+
+    /**
+     * 獲取附件的全路徑 URL
+     */
+    public function getUrlAttribute()
+    {
+        return tenant_asset($this->file_path);
+    }
+}

app/Modules/Finance/Routes/web.php

@@ -30,6 +30,11 @@ Route::middleware('auth')->group(function () {
     });
     Route::middleware('permission:utility_fees.edit')->group(function () {
         Route::put('/utility-fees/{utility_fee}', [UtilityFeeController::class, 'update'])->name('utility-fees.update');
+        
+        // 附件管理 (Ajax)
+        Route::get('/utility-fees/{utility_fee}/attachments', [UtilityFeeController::class, 'attachments'])->name('utility-fees.attachments');
+        Route::post('/utility-fees/{utility_fee}/attachments', [UtilityFeeController::class, 'uploadAttachment'])->name('utility-fees.upload-attachment');
+        Route::delete('/utility-fees/{utility_fee}/attachments/{attachment}', [UtilityFeeController::class, 'deleteAttachment'])->name('utility-fees.delete-attachment');
     });
     Route::middleware('permission:utility_fees.delete')->group(function () {
         Route::delete('/utility-fees/{utility_fee}', [UtilityFeeController::class, 'destroy'])->name('utility-fees.destroy');

app/Modules/Finance/Services/FinanceService.php

@@ -67,7 +67,7 @@ class FinanceService implements FinanceServiceInterface
 
     public function getUtilityFees(array $filters)
     {
-        $query = UtilityFee::query();
+        $query = UtilityFee::withCount('attachments');
 
         if (!empty($filters['search'])) {
             $search = $filters['search'];