Add giftcard management

backend/handlers/payments/giftcards.go

@@ -29,10 +29,19 @@ type GiftCard struct {
 	RedeemedBy       *string    `json:"redeemed_by,omitempty"`
 }
 
+type UserBalance struct {
+	UserID    string    `json:"user_id"`
+	Name      string    `json:"name"`
+	Email     string    `json:"email"`
+	Balance   float64   `json:"balance"`
+	UpdatedAt time.Time `json:"updated_at"`
+}
+
 type GiftCardSummary struct {
-	TotalUnclaimed   float64    `json:"total_unclaimed"`
-	TotalUserBalances float64   `json:"total_user_balances"`
-	GiftCards        []GiftCard `json:"gift_cards"`
+	TotalUnclaimed    float64       `json:"total_unclaimed"`
+	TotalUserBalances float64       `json:"total_user_balances"`
+	GiftCards         []GiftCard    `json:"gift_cards"`
+	UserBalances      []UserBalance `json:"user_balances"`
 }
 
 type CreateGiftCardRequest struct {
@@ -136,6 +145,37 @@ func GetGiftCards(w http.ResponseWriter, r *http.Request) {
 		summary.GiftCards = append(summary.GiftCards, gc)
 	}
 
+	summary.UserBalances = []UserBalance{}
+	ubRows, err := db.DB.Query(ctx, `
+		SELECT b.user_id, u.n_first_name || ' ' || u.n_last_name AS name, u.email, b.balance, b.updated_at
+		FROM user_giftcard_balances b
+		JOIN users u ON b.user_id = u.id
+		ORDER BY b.updated_at DESC
+	`)
+	if err != nil {
+		log.Printf("Failed to query user balances: %v", err)
+		http.Error(w, "Internal server error", http.StatusInternalServerError)
+		return
+	}
+	defer ubRows.Close()
+
+	for ubRows.Next() {
+		var ub UserBalance
+		err = ubRows.Scan(
+			&ub.UserID,
+			&ub.Name,
+			&ub.Email,
+			&ub.Balance,
+			&ub.UpdatedAt,
+		)
+		if err != nil {
+			log.Printf("Failed to scan user balance: %v", err)
+			http.Error(w, "Internal server error", http.StatusInternalServerError)
+			return
+		}
+		summary.UserBalances = append(summary.UserBalances, ub)
+	}
+
 	w.Header().Set("Content-Type", "application/json")
 	json.NewEncoder(w).Encode(summary)
 }
@@ -155,8 +195,16 @@ func CreateGiftCard(w http.ResponseWriter, r *http.Request) {
 		return
 	}
 
+	tx, err := db.DB.Begin(ctx)
+	if err != nil {
+		log.Printf("Failed to begin transaction: %v", err)
+		http.Error(w, "Internal server error", http.StatusInternalServerError)
+		return
+	}
+	defer tx.Rollback(ctx)
+
 	var gc GiftCard
-	err := db.DB.QueryRow(ctx, `
+	err = tx.QueryRow(ctx, `
 		INSERT INTO gift_cards (total_funds_added, amount_remaining, created_by)
 		VALUES ($1, $1, $2)
 		RETURNING id, total_funds_added, amount_remaining, created_by, created_at
@@ -173,6 +221,23 @@ func CreateGiftCard(w http.ResponseWriter, r *http.Request) {
 		return
 	}
 
+	// Create an 'on_the_house' payment record for financial tracking
+	_, err = tx.Exec(ctx, `
+		INSERT INTO payments (payment_type, payment_method, status, amount, created_by, created_at, updated_at)
+		VALUES ('full', 'on_the_house', 'completed', $1, $2, NOW(), NOW())
+	`, req.Amount, adminID)
+	if err != nil {
+		log.Printf("Failed to create payment record for gift card: %v", err)
+		http.Error(w, "Internal server error", http.StatusInternalServerError)
+		return
+	}
+
+	if err := tx.Commit(ctx); err != nil {
+		log.Printf("Failed to commit transaction: %v", err)
+		http.Error(w, "Internal server error", http.StatusInternalServerError)
+		return
+	}
+
 	w.Header().Set("Content-Type", "application/json")
 	w.WriteHeader(http.StatusCreated)
 	json.NewEncoder(w).Encode(gc)