feat(marketing): implement recharge tiers and coupon management across admin, server, and uniapp

server/src/core/marketing/marketing.service.ts

@@ -0,0 +1,104 @@
+// 已读取AGENTS.md
+import { ContentSecurityService } from '../security/content-security.service';
+
+export interface RechargeTierItem {
+  id: number;
+  amount: number;
+  bonusAmount: number;
+  tag?: string;
+  sortOrder: number;
+  status: number;
+}
+
+export interface CouponItem {
+  id: number;
+  name: string;
+  discountAmount: number;
+  minSpend: number;
+  validDays: number;
+  totalCount: number;
+  receivedCount: number;
+  categoryLimit: string;
+  description?: string;
+  status: number;
+}
+
+export class MarketingService {
+  private tiers: RechargeTierItem[] = [
+    { id: 1, amount: 50, bonusAmount: 0, tag: '基础充值', sortOrder: 1, status: 1 },
+    { id: 2, amount: 100, bonusAmount: 5, tag: '热门畅享', sortOrder: 2, status: 1 },
+    { id: 3, amount: 200, bonusAmount: 15, tag: '超值加赠', sortOrder: 3, status: 1 },
+    { id: 4, amount: 500, bonusAmount: 50, tag: '尊享特惠', sortOrder: 4, status: 1 },
+    { id: 5, amount: 1000, bonusAmount: 120, tag: '土豪专享', sortOrder: 5, status: 1 }
+  ];
+
+  private coupons: CouponItem[] = [
+    { id: 1, name: '新用户注册专享立减券', discountAmount: 20, minSpend: 50, validDays: 15, totalCount: 2000, receivedCount: 128, categoryLimit: 'ALL', description: '全品类满50可用', status: 1 },
+    { id: 2, name: '周末同城聚会AA抵扣券', discountAmount: 15, minSpend: 80, validDays: 7, totalCount: 1000, receivedCount: 85, categoryLimit: 'MEAL', description: '限美食探店使用', status: 1 },
+    { id: 3, name: '工体K歌麦霸欢唱减免券', discountAmount: 30, minSpend: 120, validDays: 10, totalCount: 800, receivedCount: 62, categoryLimit: 'SING', description: '限KTV陪唱使用', status: 1 }
+  ];
+
+  private nextTierId = 6;
+  private nextCouponId = 4;
+  private secService = new ContentSecurityService();
+
+  // 充值阶梯
+  getActiveTiers(): RechargeTierItem[] {
+    return this.tiers.filter((t) => t.status === 1).sort((a, b) => a.sortOrder - b.sortOrder);
+  }
+
+  createTier(data: { amount: number; bonusAmount?: number; tag?: string; sortOrder?: number; status?: number }): RechargeTierItem {
+    if (!data.amount || data.amount <= 0) {
+      throw new Error('充值金额必须大于0');
+    }
+    const item: RechargeTierItem = {
+      id: this.nextTierId++,
+      amount: Number(data.amount),
+      bonusAmount: Number(data.bonusAmount || 0),
+      tag: data.tag || '',
+      sortOrder: Number(data.sortOrder || 0),
+      status: data.status !== undefined ? Number(data.status) : 1
+    };
+    this.tiers.push(item);
+    return item;
+  }
+
+  // 优惠券业务
+  getActiveCoupons(category?: string): CouponItem[] {
+    return this.coupons
+      .filter((c) => c.status === 1)
+      .filter((c) => !category || category === 'ALL' || c.categoryLimit === 'ALL' || c.categoryLimit === category)
+      .sort((a, b) => b.discountAmount - a.discountAmount);
+  }
+
+  createCoupon(data: { name: string; discountAmount: number; minSpend?: number; validDays?: number; totalCount?: number; categoryLimit?: string; description?: string; status?: number }): CouponItem {
+    if (!data.name || !data.name.trim()) {
+      throw new Error('优惠券名称不能为空');
+    }
+    if (!data.discountAmount || data.discountAmount <= 0) {
+      throw new Error('减免面额必须大于0');
+    }
+
+    const sec = this.secService.checkText(data.name + ' ' + (data.description || ''));
+    if (!sec.pass) {
+      const err = new Error(sec.message);
+      (err as any).code = sec.code;
+      throw err;
+    }
+
+    const item: CouponItem = {
+      id: this.nextCouponId++,
+      name: data.name.trim(),
+      discountAmount: Number(data.discountAmount),
+      minSpend: Number(data.minSpend || 0),
+      validDays: Number(data.validDays || 7),
+      totalCount: Number(data.totalCount || 1000),
+      receivedCount: 0,
+      categoryLimit: data.categoryLimit || 'ALL',
+      description: data.description || '',
+      status: data.status !== undefined ? Number(data.status) : 1
+    };
+    this.coupons.push(item);
+    return item;
+  }
+}