consumer模块完成90%，完善店铺商品优惠券领取

mall/utils/supabaseService.uts

@@ -48,6 +48,13 @@ export interface Product {
   attributes?: string // JSON string
   created_at?: string
   updated_at?: string
+  // Alias fields for compatibility
+  price?: number
+  original_price?: number
+  stock?: number
+  sales?: number
+  images?: string
+  cover?: string
   // View fields
   brand_name?: string
   category_name?: string
@@ -928,21 +935,51 @@ class SupabaseService {
     }
   }
 
+  // 获取与特定商家的聊天记录
+  async getChatMessages(merchantId: string): Promise<ChatMessage[]> {
+    try {
+      const userId = this.getCurrentUserId()
+      if (!userId) return []
+
+      const response = await supa
+        .from('ml_chat_messages')
+        .select('*')
+        .or(`and(sender_id.eq.${userId},receiver_id.eq.${merchantId}),and(sender_id.eq.${merchantId},receiver_id.eq.${userId})`)
+        .order('created_at', { ascending: false })
+        .limit(50)
+        .execute()
+        
+      if (response.error) {
+        console.error('获取聊天记录失败:', response.error)
+        return []
+      }
+      return response.data as ChatMessage[]
+    } catch (e) {
+       console.error('获取聊天记录异常:', e)
+       return []
+    }
+  }
+
   // 发送聊天消息
-  async sendChatMessage(content: string, type: string = 'text'): Promise<boolean> {
+  async sendChatMessage(content: string, toId: string | null = null, type: string = 'text'): Promise<boolean> {
       try {
           const userId = this.getCurrentUserId()
           if (!userId) return false
           
+          const payload : any = {
+              sender_id: userId,
+              content: content,
+              msg_type: type,
+              is_from_user: true,
+              created_at: new Date().toISOString()
+          }
+          if (toId != null) {
+              payload['receiver_id'] = toId
+          }
+
           const response = await supa
               .from('ml_chat_messages')
-              .insert({
-                  sender_id: userId,
-                  content: content,
-                  msg_type: type,
-                  is_from_user: true,
-                  created_at: new Date().toISOString()
-              })
+              .insert(payload)
               .execute()
               
           if (response.error) {
@@ -2732,6 +2769,94 @@ class SupabaseService {
         return 0
     }
   }
+
+  // 获取店铺/商品可用优惠券
+  async getAvailableCoupons(merchantId: string): Promise<any[]> {
+    return this.fetchShopCoupons(merchantId)
+  }
+
+  // ALIAS for Cache busting: 获取店铺优惠券
+  async fetchShopCoupons(merchantId: string): Promise<any[]> {
+    try {
+      // 查询该商家的优惠券 + 平台通用券 (merchant_id is null)
+      // 注意：这里简化逻辑，实际可能需要联合查询用户是否已领取
+      const response = await supa
+        .from('ml_coupon_templates')
+        .select('*')
+        .or(`merchant_id.eq.${merchantId},merchant_id.is.null`)
+        .eq('status', 1)
+        .gt('end_time', new Date().toISOString())
+        .order('discount_value', { ascending: false })
+        .execute()
+      
+      if (response.error) {
+        console.error('Fetch coupons failed:', response.error)
+        return []
+      }
+      
+      return response.data
+    } catch (e) {
+      console.error('Fetch coupons error:', e)
+      return []
+    }
+  }
+
+  // 领取优惠券
+  async claimCoupon(templateId: string, userId: string): Promise<boolean> {
+     return this.claimShopCoupon(templateId, userId)
+  }
+
+  // ALIAS for Cache busting
+  async claimShopCoupon(templateId: string, userId: string): Promise<boolean> {
+     try {
+       // 1. Fetch template details to get merchant_id and validity
+       const tmplRes = await supa
+         .from('ml_coupon_templates')
+         .select('*')
+         .eq('id', templateId)
+         .single()
+       
+       if (tmplRes.error) {
+         console.error('Claim Coupon: Template not found', tmplRes.error)
+         return false
+       }
+       
+       const template = tmplRes.data as any
+       
+       // Calculate expire_at
+       let expireAt = new Date(Date.now() + 30 * 24 * 60 * 60 * 1000).toISOString()
+       if (template['valid_days'] && (template['valid_days'] as number) > 0) {
+           expireAt = new Date(Date.now() + (template['valid_days'] as number) * 24 * 60 * 60 * 1000).toISOString()
+       } else if (template['end_time']) {
+           expireAt = template['end_time'] as string
+       }
+
+       // 2. Insert into user coupons with merchant_id
+       const insertData = {
+            user_id: userId,
+            template_id: templateId,
+            merchant_id: template['merchant_id'], // Important for shop filtering
+            coupon_code: 'C' + Date.now() + Math.floor(Math.random() * 1000), 
+            status: 1, 
+            expire_at: expireAt,
+            received_at: new Date().toISOString()
+       }
+
+       const response = await supa
+         .from('ml_user_coupons')
+         .insert(insertData)
+         .execute()
+        
+        if (response.error) {
+            console.error('Claim Coupon: Insert failed', response.error)
+            return false
+        }
+        return true
+     } catch(e) {
+        console.error('Claim coupon error:', e)
+        return false
+     }
+  }
 }
 
 // 导出单例实例