chore: build

backend/gestion/db/db_clients.go

@@ -650,3 +650,84 @@ func (d *Database) CanUserAccessCommand(
 
 	return exists, err
 }
+
+// GetClientPointsAndRewards retourne les points cumulés et les récompenses réclamées pour un client.
+func (d *Database) GetClientPointsAndRewards(username string) (pointsExtra map[string]int, pointsRedeemed map[string]int, err error) {
+	var row struct {
+		PointsExtraJSON    []byte `gorm:"column:points_extra"`
+		PointsRedeemedJSON []byte `gorm:"column:points_redeemed"`
+	}
+	if err = d.GDB.Raw(`
+		SELECT COALESCE(points_extra, '{}'::jsonb) as points_extra,
+		       COALESCE(points_redeemed, '{}'::jsonb) as points_redeemed
+		FROM clients WHERE username = ?`, username).Scan(&row).Error; err != nil {
+		return nil, nil, fmt.Errorf("erreur lecture points client: %w", err)
+	}
+	pointsExtra = map[string]int{}
+	pointsRedeemed = map[string]int{}
+	if len(row.PointsExtraJSON) > 0 {
+		json.Unmarshal(row.PointsExtraJSON, &pointsExtra)
+	}
+	if len(row.PointsRedeemedJSON) > 0 {
+		json.Unmarshal(row.PointsRedeemedJSON, &pointsRedeemed)
+	}
+	return pointsExtra, pointsRedeemed, nil
+}
+
+// ClaimPoolReward réclame une récompense pour un pool donné si le client a assez de points.
+// Retourne le nombre de récompenses disponibles restantes après la réclamation.
+func (d *Database) ClaimPoolReward(username, poolKey string, threshold int) (remainingAvailable int, err error) {
+	var points, redeemed int
+
+	err = d.GDB.Transaction(func(tx *gorm.DB) error {
+		var row struct {
+			Points   int `gorm:"column:pts"`
+			Redeemed int `gorm:"column:redeemed"`
+		}
+		if err := tx.Raw(`
+			SELECT
+				COALESCE((points_extra->>?)::int, 0) as pts,
+				COALESCE((points_redeemed->>?)::int, 0) as redeemed
+			FROM clients WHERE username = ? FOR UPDATE`,
+			poolKey, poolKey, username).Scan(&row).Error; err != nil {
+			return fmt.Errorf("erreur lecture: %w", err)
+		}
+		points = row.Points
+		redeemed = row.Redeemed
+
+		earned := points / threshold
+		available := earned - redeemed
+		if available <= 0 {
+			return fmt.Errorf("pas de récompense disponible pour ce pool")
+		}
+
+		return tx.Exec(`
+			UPDATE clients
+			SET points_redeemed = jsonb_set(
+				COALESCE(points_redeemed, '{}'::jsonb),
+				ARRAY[?],
+				to_jsonb(COALESCE((points_redeemed->>?)::int, 0) + 1)
+			), updated_at = CURRENT_TIMESTAMP
+			WHERE username = ?`,
+			poolKey, poolKey, username).Error
+	})
+	if err != nil {
+		return 0, err
+	}
+
+	earned := points / threshold
+	remainingAvailable = earned - (redeemed + 1)
+	return remainingAvailable, nil
+}
+
+// ResetClientRedeemed remet à zéro les récompenses réclamées (admin).
+func (d *Database) ResetClientRedeemed(username, poolKey string) error {
+	if poolKey != "" {
+		return d.GDB.Exec(`
+			UPDATE clients SET points_redeemed = points_redeemed - ?, updated_at = CURRENT_TIMESTAMP
+			WHERE username = ?`, poolKey, username).Error
+	}
+	return d.GDB.Exec(`
+		UPDATE clients SET points_redeemed = '{}'::jsonb, updated_at = CURRENT_TIMESTAMP
+		WHERE username = ?`, username).Error
+}