add GET delivery count route

backend/cmd/api/main.go

@@ -35,6 +35,7 @@ func main() {
 
 	r.GET("/api/deliveries", h.GetDeliveries)
 	r.GET("/api/deliveries/:id", h.GetDeliveryByID)
+	r.GET("/api/deliveries/count", h.GetDeliveryCount)
 	r.POST("/api/deliveries", h.CreateDelivery)
 	r.PATCH("/api/deliveries/:id", h.UpdateDelivery)
 	r.DELETE("/api/deliveries/:id", h.DeleteDelivery)

backend/internal/db/queries/query.sql

@@ -13,4 +13,7 @@ SELECT * FROM deliveries WHERE id = $1;
 DELETE FROM deliveries WHERE id = $1;
 
 -- name: UpdateDelivery :exec
-UPDATE deliveries SET date = $1, pickup_location = $2, product_name = $3, address = $4, phone = $5, additional_phone = $6, has_elevator = $7, comment = $8, updated_at = NOW() WHERE id = $9;
+UPDATE deliveries SET date = $1, pickup_location = $2, product_name = $3, address = $4, phone = $5, additional_phone = $6, has_elevator = $7, comment = $8, updated_at = NOW() WHERE id = $9;
+
+-- name: GetDeliveryCount :many
+SELECT COUNT(*) as count, date FROM deliveries WHERE date >= DATE_TRUNC('month', CURRENT_DATE) GROUP BY date;

backend/internal/db/sqlc/querier.go

@@ -15,6 +15,7 @@ type Querier interface {
 	DeleteDelivery(ctx context.Context, id pgtype.UUID) error
 	GetDeliveriesByDate(ctx context.Context, date pgtype.Date) ([]Delivery, error)
 	GetDeliveryByID(ctx context.Context, id pgtype.UUID) (Delivery, error)
+	GetDeliveryCount(ctx context.Context) ([]GetDeliveryCountRow, error)
 	UpdateDelivery(ctx context.Context, arg UpdateDeliveryParams) error
 }
 

backend/internal/db/sqlc/query.sql.go

@@ -127,6 +127,35 @@ func (q *Queries) GetDeliveryByID(ctx context.Context, id pgtype.UUID) (Delivery
 	return i, err
 }
 
+const getDeliveryCount = `-- name: GetDeliveryCount :many
+SELECT COUNT(*) as count, date FROM deliveries WHERE date >= DATE_TRUNC('month', CURRENT_DATE) GROUP BY date
+`
+
+type GetDeliveryCountRow struct {
+	Count int64       `db:"count" json:"count"`
+	Date  pgtype.Date `db:"date" json:"date"`
+}
+
+func (q *Queries) GetDeliveryCount(ctx context.Context) ([]GetDeliveryCountRow, error) {
+	rows, err := q.db.Query(ctx, getDeliveryCount)
+	if err != nil {
+		return nil, err
+	}
+	defer rows.Close()
+	items := []GetDeliveryCountRow{}
+	for rows.Next() {
+		var i GetDeliveryCountRow
+		if err := rows.Scan(&i.Count, &i.Date); err != nil {
+			return nil, err
+		}
+		items = append(items, i)
+	}
+	if err := rows.Err(); err != nil {
+		return nil, err
+	}
+	return items, nil
+}
+
 const updateDelivery = `-- name: UpdateDelivery :exec
 UPDATE deliveries SET date = $1, pickup_location = $2, product_name = $3, address = $4, phone = $5, additional_phone = $6, has_elevator = $7, comment = $8, updated_at = NOW() WHERE id = $9
 `

backend/internal/delivery/handler.go

@@ -69,6 +69,17 @@ func (h *Handler) GetDeliveries(c *gin.Context) {
 	c.JSON(http.StatusOK, gin.H{"deliveries": deliveries})
 }
 
+// GET /api/deliveries/count
+func (h *Handler) GetDeliveryCount(c *gin.Context) {
+	counts, err := h.queries.GetDeliveryCount(c.Request.Context())
+	if err != nil {
+		c.JSON(http.StatusInternalServerError, gin.H{"error": "Failed to get delivery count", "details": err.Error()})
+		return
+	}
+
+	c.JSON(http.StatusOK, gin.H{"counts": counts})
+}
+
 // POST /api/deliveries
 func (h *Handler) CreateDelivery(c *gin.Context) {
 	var req DeliveryRequest = DeliveryRequest{}