refactor(handler): extract product and inventory handlers

- Extract 7 handlers to product_handler.go (216 lines)
  - CreateProduct, ListProducts, GetProduct, UpdateProduct, DeleteProduct
  - ListInventory, AdjustInventory
- handler.go reduced from 1025 to 806 lines
- Total refactoring: ~60% of original (1471 -> 806)

All tests passing
This commit is contained in:
Tiago Yamamoto 2025-12-20 08:02:02 -03:00
parent e40517aac4
commit 19c636164b
2 changed files with 227 additions and 219 deletions

View file

@ -3,9 +3,7 @@ package handler
import (
"errors"
"net/http"
"strconv"
"strings"
"time"
jsoniter "github.com/json-iterator/go"
@ -113,223 +111,6 @@ func (h *Handler) Login(w http.ResponseWriter, r *http.Request) {
writeJSON(w, http.StatusOK, authResponse{Token: token, ExpiresAt: exp})
}
// CreateProduct godoc
// @Summary Cadastro de produto com rastreabilidade de lote
// @Tags Produtos
// @Accept json
// @Produce json
// @Param product body registerProductRequest true "Produto"
// @Success 201 {object} domain.Product
// @Router /api/v1/products [post]
func (h *Handler) CreateProduct(w http.ResponseWriter, r *http.Request) {
var req registerProductRequest
if err := decodeJSON(r.Context(), r, &req); err != nil {
writeError(w, http.StatusBadRequest, err)
return
}
product := &domain.Product{
SellerID: req.SellerID,
Name: req.Name,
Description: req.Description,
Batch: req.Batch,
ExpiresAt: req.ExpiresAt,
PriceCents: req.PriceCents,
Stock: req.Stock,
}
if err := h.svc.RegisterProduct(r.Context(), product); err != nil {
writeError(w, http.StatusInternalServerError, err)
return
}
writeJSON(w, http.StatusCreated, product)
}
// ListProducts godoc
// @Summary Lista catálogo com lote e validade
// @Tags Produtos
// @Produce json
// @Success 200 {array} domain.Product
// @Router /api/v1/products [get]
func (h *Handler) ListProducts(w http.ResponseWriter, r *http.Request) {
products, err := h.svc.ListProducts(r.Context())
if err != nil {
writeError(w, http.StatusInternalServerError, err)
return
}
writeJSON(w, http.StatusOK, products)
}
// GetProduct godoc
// @Summary Obter produto
// @Tags Produtos
// @Produce json
// @Param id path string true "Product ID"
// @Success 200 {object} domain.Product
// @Failure 404 {object} map[string]string
// @Router /api/v1/products/{id} [get]
func (h *Handler) GetProduct(w http.ResponseWriter, r *http.Request) {
id, err := parseUUIDFromPath(r.URL.Path)
if err != nil {
writeError(w, http.StatusBadRequest, err)
return
}
product, err := h.svc.GetProduct(r.Context(), id)
if err != nil {
writeError(w, http.StatusNotFound, err)
return
}
writeJSON(w, http.StatusOK, product)
}
// UpdateProduct godoc
// @Summary Atualizar produto
// @Tags Produtos
// @Accept json
// @Produce json
// @Param id path string true "Product ID"
// @Param payload body updateProductRequest true "Campos para atualização"
// @Success 200 {object} domain.Product
// @Failure 400 {object} map[string]string
// @Failure 404 {object} map[string]string
// @Router /api/v1/products/{id} [patch]
func (h *Handler) UpdateProduct(w http.ResponseWriter, r *http.Request) {
id, err := parseUUIDFromPath(r.URL.Path)
if err != nil {
writeError(w, http.StatusBadRequest, err)
return
}
var req updateProductRequest
if err := decodeJSON(r.Context(), r, &req); err != nil {
writeError(w, http.StatusBadRequest, err)
return
}
product, err := h.svc.GetProduct(r.Context(), id)
if err != nil {
writeError(w, http.StatusNotFound, err)
return
}
if req.SellerID != nil {
product.SellerID = *req.SellerID
}
if req.Name != nil {
product.Name = *req.Name
}
if req.Description != nil {
product.Description = *req.Description
}
if req.Batch != nil {
product.Batch = *req.Batch
}
if req.ExpiresAt != nil {
product.ExpiresAt = *req.ExpiresAt
}
if req.PriceCents != nil {
product.PriceCents = *req.PriceCents
}
if req.Stock != nil {
product.Stock = *req.Stock
}
if err := h.svc.UpdateProduct(r.Context(), product); err != nil {
writeError(w, http.StatusInternalServerError, err)
return
}
writeJSON(w, http.StatusOK, product)
}
// DeleteProduct godoc
// @Summary Remover produto
// @Tags Produtos
// @Param id path string true "Product ID"
// @Success 204 ""
// @Failure 400 {object} map[string]string
// @Failure 404 {object} map[string]string
// @Router /api/v1/products/{id} [delete]
func (h *Handler) DeleteProduct(w http.ResponseWriter, r *http.Request) {
id, err := parseUUIDFromPath(r.URL.Path)
if err != nil {
writeError(w, http.StatusBadRequest, err)
return
}
if err := h.svc.DeleteProduct(r.Context(), id); err != nil {
writeError(w, http.StatusBadRequest, err)
return
}
w.WriteHeader(http.StatusNoContent)
}
// ListInventory godoc
// @Summary Listar estoque
// @Tags Estoque
// @Security BearerAuth
// @Produce json
// @Param expires_in_days query int false "Dias para expiração"
// @Success 200 {array} domain.InventoryItem
// @Router /api/v1/inventory [get]
// ListInventory exposes stock with expiring batch filters.
func (h *Handler) ListInventory(w http.ResponseWriter, r *http.Request) {
var filter domain.InventoryFilter
if days := r.URL.Query().Get("expires_in_days"); days != "" {
n, err := strconv.Atoi(days)
if err != nil || n < 0 {
writeError(w, http.StatusBadRequest, errors.New("invalid expires_in_days"))
return
}
expires := time.Now().Add(time.Duration(n) * 24 * time.Hour)
filter.ExpiringBefore = &expires
}
inventory, err := h.svc.ListInventory(r.Context(), filter)
if err != nil {
writeError(w, http.StatusInternalServerError, err)
return
}
writeJSON(w, http.StatusOK, inventory)
}
// AdjustInventory godoc
// @Summary Ajustar estoque
// @Tags Estoque
// @Security BearerAuth
// @Accept json
// @Produce json
// @Param payload body inventoryAdjustRequest true "Ajuste de estoque"
// @Success 200 {object} domain.InventoryItem
// @Failure 400 {object} map[string]string
// @Router /api/v1/inventory/adjust [post]
// AdjustInventory handles manual stock corrections.
func (h *Handler) AdjustInventory(w http.ResponseWriter, r *http.Request) {
var req inventoryAdjustRequest
if err := decodeJSON(r.Context(), r, &req); err != nil {
writeError(w, http.StatusBadRequest, err)
return
}
if req.Delta == 0 {
writeError(w, http.StatusBadRequest, errors.New("delta must be non-zero"))
return
}
item, err := h.svc.AdjustInventory(r.Context(), req.ProductID, req.Delta, req.Reason)
if err != nil {
writeError(w, http.StatusBadRequest, err)
return
}
writeJSON(w, http.StatusOK, item)
}
// CreateOrder godoc
// @Summary Criação de pedido com split
// @Tags Pedidos

View file

@ -0,0 +1,227 @@
package handler
import (
"errors"
"net/http"
"strconv"
"time"
"github.com/saveinmed/backend-go/internal/domain"
)
// CreateProduct godoc
// @Summary Cadastro de produto com rastreabilidade de lote
// @Tags Produtos
// @Accept json
// @Produce json
// @Param product body registerProductRequest true "Produto"
// @Success 201 {object} domain.Product
// @Router /api/v1/products [post]
func (h *Handler) CreateProduct(w http.ResponseWriter, r *http.Request) {
var req registerProductRequest
if err := decodeJSON(r.Context(), r, &req); err != nil {
writeError(w, http.StatusBadRequest, err)
return
}
product := &domain.Product{
SellerID: req.SellerID,
Name: req.Name,
Description: req.Description,
Batch: req.Batch,
ExpiresAt: req.ExpiresAt,
PriceCents: req.PriceCents,
Stock: req.Stock,
}
if err := h.svc.RegisterProduct(r.Context(), product); err != nil {
writeError(w, http.StatusInternalServerError, err)
return
}
writeJSON(w, http.StatusCreated, product)
}
// ListProducts godoc
// @Summary Lista catálogo com lote e validade
// @Tags Produtos
// @Produce json
// @Success 200 {array} domain.Product
// @Router /api/v1/products [get]
func (h *Handler) ListProducts(w http.ResponseWriter, r *http.Request) {
products, err := h.svc.ListProducts(r.Context())
if err != nil {
writeError(w, http.StatusInternalServerError, err)
return
}
writeJSON(w, http.StatusOK, products)
}
// GetProduct godoc
// @Summary Obter produto
// @Tags Produtos
// @Produce json
// @Param id path string true "Product ID"
// @Success 200 {object} domain.Product
// @Failure 404 {object} map[string]string
// @Router /api/v1/products/{id} [get]
func (h *Handler) GetProduct(w http.ResponseWriter, r *http.Request) {
id, err := parseUUIDFromPath(r.URL.Path)
if err != nil {
writeError(w, http.StatusBadRequest, err)
return
}
product, err := h.svc.GetProduct(r.Context(), id)
if err != nil {
writeError(w, http.StatusNotFound, err)
return
}
writeJSON(w, http.StatusOK, product)
}
// UpdateProduct godoc
// @Summary Atualizar produto
// @Tags Produtos
// @Accept json
// @Produce json
// @Param id path string true "Product ID"
// @Param payload body updateProductRequest true "Campos para atualização"
// @Success 200 {object} domain.Product
// @Failure 400 {object} map[string]string
// @Failure 404 {object} map[string]string
// @Router /api/v1/products/{id} [patch]
func (h *Handler) UpdateProduct(w http.ResponseWriter, r *http.Request) {
id, err := parseUUIDFromPath(r.URL.Path)
if err != nil {
writeError(w, http.StatusBadRequest, err)
return
}
var req updateProductRequest
if err := decodeJSON(r.Context(), r, &req); err != nil {
writeError(w, http.StatusBadRequest, err)
return
}
product, err := h.svc.GetProduct(r.Context(), id)
if err != nil {
writeError(w, http.StatusNotFound, err)
return
}
if req.SellerID != nil {
product.SellerID = *req.SellerID
}
if req.Name != nil {
product.Name = *req.Name
}
if req.Description != nil {
product.Description = *req.Description
}
if req.Batch != nil {
product.Batch = *req.Batch
}
if req.ExpiresAt != nil {
product.ExpiresAt = *req.ExpiresAt
}
if req.PriceCents != nil {
product.PriceCents = *req.PriceCents
}
if req.Stock != nil {
product.Stock = *req.Stock
}
if err := h.svc.UpdateProduct(r.Context(), product); err != nil {
writeError(w, http.StatusInternalServerError, err)
return
}
writeJSON(w, http.StatusOK, product)
}
// DeleteProduct godoc
// @Summary Remover produto
// @Tags Produtos
// @Param id path string true "Product ID"
// @Success 204 ""
// @Failure 400 {object} map[string]string
// @Failure 404 {object} map[string]string
// @Router /api/v1/products/{id} [delete]
func (h *Handler) DeleteProduct(w http.ResponseWriter, r *http.Request) {
id, err := parseUUIDFromPath(r.URL.Path)
if err != nil {
writeError(w, http.StatusBadRequest, err)
return
}
if err := h.svc.DeleteProduct(r.Context(), id); err != nil {
writeError(w, http.StatusBadRequest, err)
return
}
w.WriteHeader(http.StatusNoContent)
}
// ListInventory godoc
// @Summary Listar estoque
// @Tags Estoque
// @Security BearerAuth
// @Produce json
// @Param expires_in_days query int false "Dias para expiração"
// @Success 200 {array} domain.InventoryItem
// @Router /api/v1/inventory [get]
// ListInventory exposes stock with expiring batch filters.
func (h *Handler) ListInventory(w http.ResponseWriter, r *http.Request) {
var filter domain.InventoryFilter
if days := r.URL.Query().Get("expires_in_days"); days != "" {
n, err := strconv.Atoi(days)
if err != nil || n < 0 {
writeError(w, http.StatusBadRequest, errors.New("invalid expires_in_days"))
return
}
expires := time.Now().Add(time.Duration(n) * 24 * time.Hour)
filter.ExpiringBefore = &expires
}
inventory, err := h.svc.ListInventory(r.Context(), filter)
if err != nil {
writeError(w, http.StatusInternalServerError, err)
return
}
writeJSON(w, http.StatusOK, inventory)
}
// AdjustInventory godoc
// @Summary Ajustar estoque
// @Tags Estoque
// @Security BearerAuth
// @Accept json
// @Produce json
// @Param payload body inventoryAdjustRequest true "Ajuste de estoque"
// @Success 200 {object} domain.InventoryItem
// @Failure 400 {object} map[string]string
// @Router /api/v1/inventory/adjust [post]
// AdjustInventory handles manual stock corrections.
func (h *Handler) AdjustInventory(w http.ResponseWriter, r *http.Request) {
var req inventoryAdjustRequest
if err := decodeJSON(r.Context(), r, &req); err != nil {
writeError(w, http.StatusBadRequest, err)
return
}
if req.Delta == 0 {
writeError(w, http.StatusBadRequest, errors.New("delta must be non-zero"))
return
}
item, err := h.svc.AdjustInventory(r.Context(), req.ProductID, req.Delta, req.Reason)
if err != nil {
writeError(w, http.StatusBadRequest, err)
return
}
writeJSON(w, http.StatusOK, item)
}