vip会员支持补差升级

2026-04-12 14:17:01 +08:00
parent 00b9396dea
commit 82e29753b8
4 changed files with 155 additions and 47 deletions
@@ -73,11 +73,47 @@ class VipLevel extends Model
        'exp_multiplier' => 'float',
        'jjb_multiplier' => 'float',
        'sort_order' => 'integer',
-        'price' => 'integer',
+        'price' => 'float',
        'duration_days' => 'integer',
        'allow_custom_messages' => 'boolean',
    ];

+    /**
+     * 判断当前等级是否高于指定等级。
+     * 依靠 sort_order 判断。
+     */
+    public function isHigherThan(self|int|null $other): bool
+    {
+        if ($other === null) {
+            return true;
+        }
+
+        $otherOrder = ($other instanceof self)
+            ? $other->sort_order
+            : self::where('id', $other)->value('sort_order') ?? 0;
+
+        return $this->sort_order > $otherOrder;
+    }
+
+    /**
+     * 计算相对于另一个等级的差价。
+     * 如果当前等级价格更低，则返回 0。
+     */
+    public function getUpgradePrice(self|int|null $other): float
+    {
+        if ($other === null) {
+            return (float) $this->price;
+        }
+
+        $otherPrice = ($other instanceof self)
+            ? (float) $other->price
+            : (float) (self::where('id', $other)->value('price') ?? 0);
+
+        $diff = (float) $this->price - $otherPrice;
+
+        return max(0.0, $diff);
+    }
+
    /**
     * 关联：该等级下的所有用户
     */