1.新增商城参数配置菜单-管理兑换比例

app/common/library/MallPlayxRatios.php

@@ -0,0 +1,58 @@
+<?php
+
+declare(strict_types=1);
+
+namespace app\common\library;
+
+use app\common\model\MallConfig;
+
+/**
+ * PlayX 与积分商城相关的比例配置：优先读 mall_config，无表记录时回退 .env
+ */
+final class MallPlayxRatios
+{
+    private static ?array $cache = null;
+
+    /**
+     * @return array{return_ratio: float, unlock_ratio: float, points_to_cash_ratio: float}
+     */
+    public static function get(): array
+    {
+        if (self::$cache !== null) {
+            return self::$cache;
+        }
+
+        $row = MallConfig::order('id', 'asc')->find();
+        if ($row) {
+            self::$cache = [
+                'return_ratio'          => self::toFloat($row->return_ratio),
+                'unlock_ratio'          => self::toFloat($row->unlock_ratio),
+                'points_to_cash_ratio' => self::toFloat($row->points_to_cash_ratio),
+            ];
+
+            return self::$cache;
+        }
+
+        self::$cache = [
+            'return_ratio'          => floatval(env('PLAYX_RETURN_RATIO', '0.1')),
+            'unlock_ratio'          => floatval(env('PLAYX_UNLOCK_RATIO', '0.1')),
+            'points_to_cash_ratio' => floatval(env('PLAYX_POINTS_TO_CASH_RATIO', '0.1')),
+        ];
+
+        return self::$cache;
+    }
+
+    public static function forget(): void
+    {
+        self::$cache = null;
+    }
+
+    private static function toFloat(mixed $v): float
+    {
+        if (is_numeric($v)) {
+            return floatval($v);
+        }
+
+        return 0.0;
+    }
+}

app/common/model/MallConfig.php

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+<?php
+
+declare(strict_types=1);
+
+namespace app\common\model;
+
+use support\think\Model;
+
+/**
+ * 积分商城配置（比例等）
+ */
+class MallConfig extends Model
+{
+    protected string $name = 'mall_config';
+
+    protected bool $autoWriteTimestamp = true;
+
+    protected array $type = [
+        'create_time'           => 'integer',
+        'update_time'           => 'integer',
+        'return_ratio'          => 'float',
+        'unlock_ratio'          => 'float',
+        'points_to_cash_ratio' => 'float',
+    ];
+}