feat: C2C商家交易系统后端 — API+后台管理

2026-04-28 14:35:00 +08:00
commit db5ed78ea9
5 changed files with 312 additions and 0 deletions
@@ -0,0 +1,13 @@
+<?php
+namespace App;
+use Illuminate\Database\Eloquent\Model;
+
+class C2cMerchant extends Model
+{
+    protected $table = 'c2c_merchant';
+    protected $fillable = [
+        'name','logo','available_qty','min_amount','max_amount','unit_price',
+        'crypto_currency','fiat_currency','payment_methods','rating',
+        'contact_type','contact_link','status','sort'
+    ];
+}
@@ -0,0 +1,16 @@
+<?php
+namespace App;
+use Illuminate\Database\Eloquent\Model;
+
+class C2cMerchantOrder extends Model
+{
+    protected $table = 'c2c_merchant_order';
+    protected $fillable = [
+        'order_no','user_id','merchant_id','direction','crypto_currency','fiat_currency',
+        'amount','unit_price','total_price','fee','fee_rate','status',
+        'contact_type','contact_link','expire_time'
+    ];
+
+    public function merchant() { return $this->belongsTo(C2cMerchant::class, 'merchant_id'); }
+    public function user() { return $this->belongsTo(Users::class, 'user_id'); }
+}
@@ -0,0 +1,115 @@
+<?php
+namespace App\Http\Controllers\Api;
+
+use App\Http\Controllers\Api\Controller;
+use App\C2cMerchant;
+use App\C2cMerchantOrder;
+use Illuminate\Http\Request;
+use App\Token;
+use App\Users;
+
+class C2cMerchantController extends Controller
+{
+    public function list(Request $request)
+    {
+        $query = C2cMerchant::where('status', 1);
+
+        $crypto = $request->input('crypto_currency');
+        if ($crypto) $query->where('crypto_currency', $crypto);
+
+        $fiat = $request->input('fiat_currency');
+        if ($fiat) $query->where('fiat_currency', $fiat);
+
+        $list = $query->orderBy('sort', 'desc')->orderBy('id', 'desc')->get();
+        return $this->success($list);
+    }
+
+    public function createOrder(Request $request)
+    {
+        $user_id = Token::getUserIdByToken(Token::getToken());
+        $user = \App\Users::find($user_id);
+        if (!$user) return $this->error('Please login');
+
+        $merchant_id = intval($request->input('merchant_id'));
+        $direction = $request->input('direction'); // buy / sell
+        $amount = floatval($request->input('amount'));
+
+        if (!in_array($direction, ['buy', 'sell'])) return $this->error('Invalid direction');
+        if ($amount <= 0) return $this->error('Invalid amount');
+
+        $merchant = C2cMerchant::find($merchant_id);
+        if (!$merchant || $merchant->status != 1) return $this->error('Merchant not available');
+
+        if ($amount < $merchant->min_amount) return $this->error('Min: ' . $merchant->min_amount);
+        if ($merchant->max_amount > 0 && $amount > $merchant->max_amount) return $this->error('Max: ' . $merchant->max_amount);
+        if ($merchant->available_qty > 0 && $amount > $merchant->available_qty) return $this->error('Insufficient merchant stock');
+
+        $unit_price = floatval($merchant->unit_price);
+        $total_price = round($amount * $unit_price, 6);
+        $fee_rate = 0.002; // 0.2%
+        $fee = round($total_price * $fee_rate, 6);
+
+        $order_no = date('YmdHis') . rand(1000, 9999);
+        $expire_time = date('Y-m-d H:i:s', time() + 1800);
+
+        $order = C2cMerchantOrder::create([
+            'order_no' => $order_no,
+            'user_id' => $user->id,
+            'merchant_id' => $merchant_id,
+            'direction' => $direction,
+            'crypto_currency' => $merchant->crypto_currency,
+            'fiat_currency' => $merchant->fiat_currency,
+            'amount' => $amount,
+            'unit_price' => $unit_price,
+            'total_price' => $total_price,
+            'fee' => $fee,
+            'fee_rate' => $fee_rate,
+            'status' => 0,
+            'contact_type' => $merchant->contact_type,
+            'contact_link' => $merchant->contact_link,
+            'expire_time' => $expire_time,
+        ]);
+
+        $order->merchant_name = $merchant->name;
+        return $this->success($order);
+    }
+
+    public function myOrders(Request $request)
+    {
+        $user_id = Token::getUserIdByToken(Token::getToken());
+        $user = \App\Users::find($user_id);
+        if (!$user) return $this->error('Please login');
+
+        $query = C2cMerchantOrder::where('user_id', $user->id)
+            ->with('merchant:id,name,logo');
+
+        $status = $request->input('status');
+        if ($status !== null && $status !== '' && $status !== 'all') {
+            $query->where('status', intval($status));
+        }
+
+        $data = $query->orderBy('id', 'desc')->paginate(intval($request->input('limit', 20)));
+
+        $statusMap = [0 => 'Pending', 1 => 'Completed', 2 => 'Cancelled', 3 => 'Expired'];
+        foreach ($data as $item) {
+            $item->status_text = $statusMap[$item->status] ?? '';
+        }
+        return $this->success($data);
+    }
+
+    public function orderDetail(Request $request)
+    {
+        $user_id = Token::getUserIdByToken(Token::getToken());
+        $user = \App\Users::find($user_id);
+        if (!$user) return $this->error('Please login');
+
+        $id = intval($request->input('id'));
+        $order = C2cMerchantOrder::with('merchant:id,name,logo,contact_type,contact_link')
+            ->where('id', $id)->where('user_id', $user->id)->first();
+        if (!$order) return $this->error('Order not found');
+
+        $statusMap = [0 => 'Pending', 1 => 'Completed', 2 => 'Cancelled', 3 => 'Expired'];
+        $order->status_text = $statusMap[$order->status] ?? '';
+        return $this->success($order);
+    }
+}