chore: update

backend/gestion/handlers/referral.go

@@ -0,0 +1,79 @@
+package handlers
+
+import (
+	"gestion/db"
+	"log"
+	"net/http"
+
+	"github.com/gin-gonic/gin"
+)
+
+// GetMyReferralBalance — GET /api/v1/referral/balance (client)
+func GetMyReferralBalance(c *gin.Context) {
+	database := c.MustGet("database").(*db.Database)
+
+	username, exists := c.Get("username")
+	if !exists {
+		c.JSON(http.StatusUnauthorized, gin.H{"error": "Utilisateur non authentifié"})
+		return
+	}
+
+	settings, _ := database.GetSettings()
+	if !settings.ReferralEnabled {
+		c.JSON(http.StatusOK, gin.H{"balance": 0, "referral_enabled": false})
+		return
+	}
+
+	balance, err := database.GetClientReferralBalance(username.(string))
+	if err != nil {
+		c.JSON(http.StatusNotFound, gin.H{"error": err.Error()})
+		return
+	}
+
+	c.JSON(http.StatusOK, gin.H{"balance": balance, "referral_enabled": true})
+}
+
+// CreditClientReferralAdmin — POST /api/v2/admin/protected/client/:username/referral/credit (admin)
+func CreditClientReferralAdmin(c *gin.Context) {
+	database := c.MustGet("database").(*db.Database)
+	targetUsername := c.Param("username")
+
+	var req struct {
+		Amount float64 `json:"amount" binding:"required"`
+	}
+	if err := c.ShouldBindJSON(&req); err != nil || req.Amount <= 0 {
+		c.JSON(http.StatusBadRequest, gin.H{"error": "Montant invalide"})
+		return
+	}
+
+	if err := database.CreditClientReferral(targetUsername, req.Amount); err != nil {
+		log.Printf("❌ [REFERRAL] Crédit échoué pour %s: %v", targetUsername, err)
+		c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
+		return
+	}
+
+	balance, _ := database.GetClientReferralBalance(targetUsername)
+	log.Printf("✅ [REFERRAL] +%.2f€ crédité à %s, nouveau solde: %.2f€", req.Amount, targetUsername, balance)
+
+	c.JSON(http.StatusOK, gin.H{
+		"message": "Solde parrainage crédité",
+		"balance": balance,
+	})
+}
+
+// GetClientReferralAdmin — GET /api/v2/admin/protected/client/:username/referral (admin)
+func GetClientReferralAdmin(c *gin.Context) {
+	database := c.MustGet("database").(*db.Database)
+	targetUsername := c.Param("username")
+
+	balance, err := database.GetClientReferralBalance(targetUsername)
+	if err != nil {
+		c.JSON(http.StatusNotFound, gin.H{"error": err.Error()})
+		return
+	}
+
+	c.JSON(http.StatusOK, gin.H{
+		"username": targetUsername,
+		"balance":  balance,
+	})
+}