diff --git a/app/Http/Controllers/Admin/HostController.php b/app/Http/Controllers/Admin/HostController.php
index c43e90e..4a14572 100644
--- a/app/Http/Controllers/Admin/HostController.php
+++ b/app/Http/Controllers/Admin/HostController.php
@@ -6,7 +6,6 @@
 use App\Models\Host;
 use Illuminate\Http\RedirectResponse;
 use Illuminate\Http\Request;
-use Illuminate\Http\Response;
 use Illuminate\View\View;
 
 class HostController extends Controller
@@ -14,9 +13,11 @@ class HostController extends Controller
     /**
      * Display a listing of the resource.
      *
-     * @return Response
+     * @param Host $host
+     *
+     * @return View
      */
-    public function index(Host $host)
+    public function index(Host $host): View
     {
         $host->load('user');
         $hosts = $host->paginate(100);
@@ -24,46 +25,12 @@ public function index(Host $host)
         return view('admin.hosts.index', compact('hosts'));
     }
 
-    /**
-     * Show the form for creating a new resource.
-     *
-     * @return Response
-     */
-    public function create()
-    {
-        //
-    }
-
-    /**
-     * Store a newly created resource in storage.
-     *
-     * @param \Illuminate\Http\Request $request
-     *
-     * @return Response
-     */
-    public function store(Request $request)
-    {
-        //
-    }
-
-    /**
-     * Display the specified resource.
-     *
-     * @param \App\Models\Host $host
-     *
-     * @return Response
-     */
-    public function show(Host $host)
-    {
-        //
-    }
-
     /**
      * Show the form for editing the specified resource.
      *
-     * @param \App\Models\Host $host
+     * @param Host $host
      *
-     * @return Response
+     * @return View
      */
     public function edit(Host $host): View
     {
@@ -75,8 +42,8 @@ public function edit(Host $host): View
     /**
      * Update the specified resource in storage.
      *
-     * @param \Illuminate\Http\Request $request
-     * @param \App\Models\Host         $host
+     * @param Request $request
+     * @param Host    $host
      *
      * @return RedirectResponse
      */
@@ -99,7 +66,7 @@ public function update(Request $request, Host $host): RedirectResponse
     /**
      * Remove the specified resource from storage.
      *
-     * @param \App\Models\Host $host
+     * @param Host $host
      *
      * @return RedirectResponse
      */
diff --git a/app/Http/Controllers/Admin/ModuleController.php b/app/Http/Controllers/Admin/ModuleController.php
index cb47bd2..7995dbc 100644
--- a/app/Http/Controllers/Admin/ModuleController.php
+++ b/app/Http/Controllers/Admin/ModuleController.php
@@ -15,9 +15,11 @@ class ModuleController extends Controller
     /**
      * Display a listing of the resource.
      *
-     * @return Response
+     * @param Module $module
+     *
+     * @return View
      */
-    public function index(Module $module)
+    public function index(Module $module): View
     {
         $modules = $module->paginate(100);
 
@@ -39,11 +41,11 @@ public function create(): View
     /**
      * Store a newly created resource in storage.
      *
-     * @param \Illuminate\Http\Request $request
+     * @param Request $request
      *
-     * @return Response
+     * @return RedirectResponse
      */
-    public function store(Request $request)
+    public function store(Request $request): RedirectResponse
     {
         //
 
@@ -64,10 +66,19 @@ public function store(Request $request)
 
     }
 
+    private function rules(): array
+    {
+        return [
+            'id' => 'required|string|max:255',
+            'name' => 'required|string|max:255',
+            'url' => 'required|url',
+        ];
+    }
+
     /**
      * Display the specified resource.
      *
-     * @param \App\Models\Module $module
+     * @param Module $module
      *
      * @return View
      */
@@ -81,7 +92,7 @@ public function show(Module $module): View
     /**
      * Show the form for editing the specified resource.
      *
-     * @param \App\Models\Module $module
+     * @param Module $module
      *
      * @return Response
      */
@@ -95,8 +106,8 @@ public function edit(Module $module): View
     /**
      * Update the specified resource in storage.
      *
-     * @param \Illuminate\Http\Request $request
-     * @param \App\Models\Module       $module
+     * @param Request $request
+     * @param Module  $module
      *
      * @return Response
      */
@@ -131,11 +142,11 @@ public function update(Request $request, Module $module): RedirectResponse
     /**
      * Remove the specified resource from storage.
      *
-     * @param \App\Models\Module $module
+     * @param Module $module
      *
-     * @return Response
+     * @return RedirectResponse
      */
-    public function destroy(Module $module)
+    public function destroy(Module $module): RedirectResponse
     {
         //
 
@@ -143,13 +154,4 @@ public function destroy(Module $module)
 
         return redirect()->route('admin.modules.index')->with('success', '模块已删除。');
     }
-
-    private function rules(): array
-    {
-        return [
-            'id' => 'required|string|max:255',
-            'name' => 'required|string|max:255',
-            'url' => 'required|url',
-        ];
-    }
 }
diff --git a/app/Http/Controllers/Admin/ReplyController.php b/app/Http/Controllers/Admin/ReplyController.php
deleted file mode 100644
index 1f3145e..0000000
--- a/app/Http/Controllers/Admin/ReplyController.php
+++ /dev/null
@@ -1,91 +0,0 @@
-<?php
-
-namespace App\Http\Controllers\Admin;
-
-use App\Http\Controllers\Controller;
-use App\Models\WorkOrder\Reply;
-use Illuminate\Http\Request;
-
-class ReplyController extends Controller
-{
-    /**
-     * Display a listing of the resource.
-     *
-     * @return \Illuminate\Http\Response
-     */
-    public function index()
-    {
-        //
-    }
-
-    /**
-     * Show the form for creating a new resource.
-     *
-     * @return \Illuminate\Http\Response
-     */
-    public function create()
-    {
-        //
-    }
-
-    /**
-     * Store a newly created resource in storage.
-     *
-     * @param \Illuminate\Http\Request $request
-     *
-     * @return \Illuminate\Http\Response
-     */
-    public function store(Request $request)
-    {
-        //
-    }
-
-    /**
-     * Display the specified resource.
-     *
-     * @param \App\Models\WorkOrder\Reply $reply
-     *
-     * @return \Illuminate\Http\Response
-     */
-    public function show(Reply $reply)
-    {
-        //
-    }
-
-    /**
-     * Show the form for editing the specified resource.
-     *
-     * @param \App\Models\WorkOrder\Reply $reply
-     *
-     * @return \Illuminate\Http\Response
-     */
-    public function edit(Reply $reply)
-    {
-        //
-    }
-
-    /**
-     * Update the specified resource in storage.
-     *
-     * @param \Illuminate\Http\Request    $request
-     * @param \App\Models\WorkOrder\Reply $reply
-     *
-     * @return \Illuminate\Http\Response
-     */
-    public function update(Request $request, Reply $reply)
-    {
-        //
-    }
-
-    /**
-     * Remove the specified resource from storage.
-     *
-     * @param \App\Models\WorkOrder\Reply $reply
-     *
-     * @return \Illuminate\Http\Response
-     */
-    public function destroy(Reply $reply)
-    {
-        //
-    }
-}
diff --git a/app/Http/Controllers/Admin/UserController.php b/app/Http/Controllers/Admin/UserController.php
index 014409b..5c0d3f6 100644
--- a/app/Http/Controllers/Admin/UserController.php
+++ b/app/Http/Controllers/Admin/UserController.php
@@ -11,7 +11,6 @@
 use Carbon\Carbon;
 use Illuminate\Http\RedirectResponse;
 use Illuminate\Http\Request;
-use Illuminate\Http\Response;
 use Illuminate\Support\Facades\Auth;
 use Illuminate\View\View;
 
@@ -20,9 +19,9 @@ class UserController extends Controller
     /**
      * Display a listing of the resource.
      *
-     * @return Response
+     * @return View
      */
-    public function index()
+    public function index(): View
     {
         //
 
@@ -31,28 +30,6 @@ public function index()
         return view('admin.users.index', compact('users'));
     }
 
-    /**
-     * Show the form for creating a new resource.
-     *
-     * @return Response
-     */
-    public function create()
-    {
-        //
-    }
-
-    /**
-     * Store a newly created resource in storage.
-     *
-     * @param \Illuminate\Http\Request $request
-     *
-     * @return Response
-     */
-    public function store(Request $request)
-    {
-        //
-    }
-
     /**
      * Display the specified resource.
      *
@@ -93,10 +70,10 @@ public function edit(User $user)
     /**
      * Update the specified resource in storage.
      *
-     * @param \Illuminate\Http\Request $request
-     * @param User                     $user
+     * @param Request $request
+     * @param User    $user
      *
-     * @return \Illuminate\Http\RedirectResponse|Response
+     * @return RedirectResponse
      */
     public function update(Request $request, User $user)
     {
@@ -150,17 +127,4 @@ public function update(Request $request, User $user)
 
         return back()->with('success', '已完成所有更改。');
     }
-
-    /**
-     * Remove the specified resource from storage.
-     *
-     * @param int $id
-     *
-     * @return Response
-     */
-    public
-    function destroy($id)
-    {
-        //
-    }
 }
diff --git a/app/Http/Controllers/Admin/WorkOrderController.php b/app/Http/Controllers/Admin/WorkOrderController.php
index e14cfb4..6161cae 100644
--- a/app/Http/Controllers/Admin/WorkOrderController.php
+++ b/app/Http/Controllers/Admin/WorkOrderController.php
@@ -2,12 +2,12 @@
 
 namespace App\Http\Controllers\Admin;
 
+use App\Exceptions\CommonException;
 use App\Http\Controllers\Controller;
 use App\Models\WorkOrder\Reply;
 use App\Models\WorkOrder\WorkOrder;
 use Illuminate\Http\RedirectResponse;
 use Illuminate\Http\Request;
-use Illuminate\Http\Response;
 use Illuminate\View\View;
 
 class WorkOrderController extends Controller
@@ -23,34 +23,12 @@ public function index(WorkOrder $workOrder): View
         return view('admin.work-orders.index', compact('workOrders'));
     }
 
-    /**
-     * Show the form for creating a new resource.
-     *
-     * @return Response
-     */
-    public function create()
-    {
-        //
-    }
-
-    /**
-     * Store a newly created resource in storage.
-     *
-     * @param \Illuminate\Http\Request $request
-     *
-     * @return Response
-     */
-    public function store(Request $request)
-    {
-        //
-    }
-
     /**
      * Display the specified resource.
      *
-     * @param \App\Models\WorkOrder\WorkOrder $workOrder
+     * @param WorkOrder $workOrder
      *
-     * @return Response
+     * @return View
      */
     public function show(WorkOrder $workOrder): View
     {
@@ -67,7 +45,7 @@ public function show(WorkOrder $workOrder): View
     /**
      * Show the form for editing the specified resource.
      *
-     * @param \App\Models\WorkOrder\WorkOrder $workOrder
+     * @param WorkOrder $workOrder
      *
      * @return View
      */
@@ -81,8 +59,8 @@ public function edit(WorkOrder $workOrder): View
     /**
      * Update the specified resource in storage.
      *
-     * @param \Illuminate\Http\Request        $request
-     * @param \App\Models\WorkOrder\WorkOrder $workOrder
+     * @param Request   $request
+     * @param WorkOrder $workOrder
      *
      * @return RedirectResponse
      */
@@ -102,14 +80,18 @@ public function update(Request $request, WorkOrder $workOrder): RedirectResponse
     /**
      * Remove the specified resource from storage.
      *
-     * @param \App\Models\WorkOrder\WorkOrder $workOrder
+     * @param WorkOrder $workOrder
      *
-     * @return Response
+     * @return RedirectResponse
      */
     public function destroy(WorkOrder $workOrder): RedirectResponse
     {
         //
-        $workOrder->safeDelete();
+        try {
+            $workOrder->safeDelete();
+        } catch (CommonException $e) {
+            return back()->with('error', $e->getMessage());
+        }
 
         return redirect()->route('admin.work-orders.index')->with('success', '正在排队删除工单。');
     }
diff --git a/app/Models/Host.php b/app/Models/Host.php
index 885512a..9a13f5b 100644
--- a/app/Models/Host.php
+++ b/app/Models/Host.php
@@ -11,7 +11,6 @@
 use Illuminate\Database\Eloquent\Relations\BelongsTo as BelongsToAlias;
 use Illuminate\Database\Eloquent\Relations\HasMany as HasManyAlias;
 use Illuminate\Support\Facades\Cache;
-use Illuminate\Support\Facades\Log;
 
 // use Illuminate\Database\Eloquent\SoftDeletes;
 
@@ -220,41 +219,6 @@ public function cost($price = null, $auto = true): bool
         return true;
     }
 
-    public function costBalance($amount = 1): bool
-    {
-        $transaction = new Transaction();
-
-        $month = now()->month;
-
-        $month_cache_key = 'user_' . $this->user_id . '_month_' . $month . '_hosts_balances';
-        $hosts_drops = Cache::get($month_cache_key, []);
-
-        // 统计 Host 消耗的 Drops
-        if (isset($hosts_drops[$this->id])) {
-            $hosts_drops[$this->id] += $amount;
-        } else {
-            $hosts_drops[$this->id] = $amount;
-        }
-
-        Cache::put($month_cache_key, $hosts_drops, 604800);
-
-        $left = $transaction->reduceHostAmount($this->user_id, $this->id, $this->module_id, $amount);
-
-        $this->addLog('balance', $amount);
-
-
-        broadcast(new UserEvent($this->user_id, 'balances.amount.reduced', $this->user));
-
-        if ($left < 0) {
-            $this->update([
-                'status' => 'suspended',
-            ]);
-        }
-
-        return true;
-    }
-
-
     public function addLog($type = 'drops', float $amount = 0)
     {
         if ($amount == 0) {
@@ -331,4 +295,38 @@ public function addLog($type = 'drops', float $amount = 0)
 
         return true;
     }
+
+    public function costBalance($amount = 1): bool
+    {
+        $transaction = new Transaction();
+
+        $month = now()->month;
+
+        $month_cache_key = 'user_' . $this->user_id . '_month_' . $month . '_hosts_balances';
+        $hosts_drops = Cache::get($month_cache_key, []);
+
+        // 统计 Host 消耗的 Drops
+        if (isset($hosts_drops[$this->id])) {
+            $hosts_drops[$this->id] += $amount;
+        } else {
+            $hosts_drops[$this->id] = $amount;
+        }
+
+        Cache::put($month_cache_key, $hosts_drops, 604800);
+
+        $left = $transaction->reduceHostAmount($this->user_id, $this->id, $this->module_id, $amount);
+
+        $this->addLog('balance', $amount);
+
+
+        broadcast(new UserEvent($this->user_id, 'balances.amount.reduced', $this->user));
+
+        if ($left < 0) {
+            $this->update([
+                'status' => 'suspended',
+            ]);
+        }
+
+        return true;
+    }
 }
diff --git a/routes/admin.php b/routes/admin.php
index 5d54c00..d3ef540 100644
--- a/routes/admin.php
+++ b/routes/admin.php
@@ -3,7 +3,6 @@
 use App\Http\Controllers\Admin\AuthController;
 use App\Http\Controllers\Admin\HostController;
 use App\Http\Controllers\Admin\ModuleController;
-use App\Http\Controllers\Admin\ReplyController;
 use App\Http\Controllers\Admin\UserController;
 use App\Http\Controllers\Admin\WorkOrderController;
 use Illuminate\Support\Facades\Route;
@@ -23,9 +22,8 @@
 ], function () {
     Route::resource('users', UserController::class)->only(['index', 'show', 'edit', 'update']);
     Route::resource('modules', ModuleController::class);
-    Route::resource('hosts', HostController::class);
-    Route::resource('work-orders', WorkOrderController::class);
-    Route::resource('work-orders.replies', ReplyController::class);
+    Route::resource('hosts', HostController::class)->only(['index', 'edit', 'update', 'destroy']);
+    Route::resource('work-orders', WorkOrderController::class)->only(['index', 'show', 'edit', 'update', 'destroy']);
 
     Route::view('commands', 'admin.commands')->name('commands');
 });