admin模块接入数据库

services/admin/marketingService.uts

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+import supa from '@/components/supadb/aksupainstance.uts'
+
+/**
+ * 优惠券模板模型
+ */
+export type CouponTemplate = {
+  id?: string
+  cid?: number
+  merchant_id?: string
+  name: string
+  description: string | null
+  coupon_type: number // 1:满减, 2:折扣, 3:免运费
+  discount_type: number // 1:固定金额, 2:百分比
+  discount_value: number
+  min_order_amount: number
+  max_discount_amount: number | null
+  total_quantity: number | null
+  per_user_limit: number
+  usage_limit: number
+  applicable_products: any[]
+  applicable_categories: any[]
+  start_time: string
+  end_time: string
+  status: number // 1:正常, 2:暂停, 3:已结束
+  created_at?: string
+  updated_at?: string
+}
+
+export type CouponQuery = {
+  name?: string | null
+  type?: number | null
+  status?: number | null
+  page?: number
+  pageSize?: number
+}
+
+function getCurrentUid(): string | null {
+  try {
+    const session = supa.getSession()
+    return session?.user?.getString('id') ?? null
+  } catch (e) {
+    return null
+  }
+}
+
+/**
+ * 分页获取优惠券模板列表
+ */
+export async function fetchAdminCoupons(query?: CouponQuery): Promise<{ total: number; items: CouponTemplate[] }> {
+  let q = supa.from('ml_coupon_templates').select('*', { count: 'exact' })
+  
+  if (query?.name != null && query.name !== '') {
+    q = q.ilike('name', `%${query.name}%`)
+  }
+  if (query?.type != null) {
+    q = q.eq('coupon_type', query.type)
+  }
+  if (query?.status != null) {
+    q = q.eq('status', query.status)
+  }
+
+  const p = query?.page ?? 1
+  const ps = query?.pageSize ?? 20
+  const from = (p - 1) * ps
+  const to = from + ps - 1
+
+  const { data, error, count } = await q
+    .order('created_at', { ascending: false })
+    .range(from, to)
+    .execute()
+
+  if (error != null) {
+    console.error('获取优惠券列表失败:', error)
+    return { total: 0, items: [] as CouponTemplate[] }
+  }
+
+  return {
+    total: count ?? 0,
+    items: (data ?? []) as CouponTemplate[]
+  }
+}
+
+/**
+ * 保存优惠券模板（新增/更新）
+ */
+export async function saveCouponTemplate(tpl: CouponTemplate): Promise<boolean> {
+  const uid = getCurrentUid()
+  if (uid == null) return false
+
+  const { error } = await supa
+    .from('ml_coupon_templates')
+    .upsert({
+      ...tpl,
+      merchant_id: uid,
+      updated_at: new Date().toISOString()
+    })
+    .execute()
+
+  if (error != null) {
+    console.error('保存优惠券模板失败:', error)
+    return false
+  }
+  return true
+}
+
+/**
+ * 切换优惠券状态
+ */
+export async function toggleCouponStatus(id: string, isOpen: boolean): Promise<boolean> {
+  const nextStatus = isOpen ? 1 : 2 // 1:正常, 2:暂停
+  const { error } = await supa
+    .from('ml_coupon_templates')
+    .update({ status: nextStatus, updated_at: new Date().toISOString() })
+    .eq('id', id)
+    .execute()
+
+  if (error != null) {
+    console.error('更新优惠券状态失败:', error)
+    return false
+  }
+  return true
+}
+
+/**
+ * 删除优惠券模板
+ */
+export async function deleteCouponTemplate(id: string): Promise<boolean> {
+  const { error } = await supa
+    .from('ml_coupon_templates')
+    .delete()
+    .eq('id', id)
+    .execute()
+
+  if (error != null) {
+    console.error('删除优惠券失败:', error)
+    return false
+  }
+  return true
+}