diff --git a/app/Admin/Controllers/CockpitController.php b/app/Admin/Controllers/CockpitController.php
index 83aa2c6..2f6afa9 100644
--- a/app/Admin/Controllers/CockpitController.php
+++ b/app/Admin/Controllers/CockpitController.php
@@ -4,10 +4,13 @@ namespace App\Admin\Controllers;
 
 use App\Http\Controllers\Controller;
 use App\Models\Employee;
+use App\Models\Ledger;
 use App\Models\Store;
 use App\Models\TaskPerformance;
 use Illuminate\Http\Request;
+use Illuminate\Support\Carbon;
 use Illuminate\Support\Facades\DB;
+use Illuminate\Validation\Rule;
 
 class CockpitController extends Controller
 {
@@ -32,7 +35,84 @@ class CockpitController extends Controller
      */
     public function salesTrend(Request $request): array
     {
-        return [];
+        $request->validate(
+            rules: [
+                'last' => ['bail', 'required', Rule::in(['7days', '30days', '180days', '365days'])],
+            ],
+        );
+
+        $data = collect();
+
+        $last = $request->input('last');
+
+        if (in_array($last, ['7days', '30days'])) {
+            // 按天
+            $days = match ($last) {
+                '7days' => 7,
+                '30days' => 30,
+            };
+
+            // 今天
+            $today = Carbon::today();
+            // 开始时间
+            $startAt = $today->copy()->subDays($days);
+            // 结束时间
+            $endAt = $today->copy()->subDay();
+
+            $ledgers = Ledger::select(['date', DB::raw('SUM(sales) as sales')])
+                ->whereBetween('date', [$startAt->toDateString(), $endAt->toDateString()])
+                ->groupBy('date')
+                ->get()
+                ->keyBy('date');
+
+            while ($startAt->lte($endAt)) {
+                $date = $startAt->toDateString();
+
+                $ledger = $ledgers->get($date);
+
+                $data->push([
+                    'date' => $date,
+                    'sales' => trim_zeros($ledger->sales ?? 0),
+                ]);
+
+                $startAt->addDay();
+            }
+        }
+        elseif (in_array($last, ['180days', '365days'])) {
+            // 按月
+            $months = match ($last) {
+                '180days' => 6,     // 6个月
+                '365days' => 12,    // 12个月
+            };
+
+            // 今天
+            $today = Carbon::today();
+            // 开始时间
+            $startAt = $today->copy()->startOfMonth()->subMonths($months);
+            // 结束时间
+            $endAt = $today->copy()->startOfMonth()->subMonth()->endOfMonth();
+
+            $ledgers = Ledger::select([DB::raw("DATE_FORMAT(`date`, '%Y-%m') as month"), DB::raw('SUM(sales) as sales')])
+                ->whereBetween('date', [$startAt->toDateString(), $endAt->toDateString()])
+                ->groupBy('month')
+                ->get()
+                ->keyBy('month');
+
+            for ($i=0; $i < $months; $i++) {
+                $month = $startAt->format('Y-m');
+
+                $ledger = $ledgers->get($month);
+
+                $data->push([
+                    'date' => $month,
+                    'sales' => trim_zeros($ledger->sales ?? 0),
+                ]);
+
+                $startAt->addMonth();
+            }
+        }
+
+        return $data->all();
     }
 
     /**