quite a lot of things
This commit is contained in:
Arkaprabha Chakraborty
231
internal/web/product.go
Normal file
231
internal/web/product.go
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@@ -0,0 +1,231 @@
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package web
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import (
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"billit/internal/database"
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"net/http"
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"strconv"
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"github.com/labstack/echo/v4"
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)
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// ProductHandlers holds db reference for product operations
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type ProductHandlers struct {
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db database.Service
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}
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// NewProductHandlers creates handlers with db access
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func NewProductHandlers(db database.Service) *ProductHandlers {
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return &ProductHandlers{db: db}
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}
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// getUserID extracts user ID from context (set by auth middleware)
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func getUserID(c echo.Context) string {
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if uid, ok := c.Get("user_id").(string); ok {
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return uid
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}
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return ""
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}
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// ProductListHandler renders the /product page with all products
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func (h *ProductHandlers) ProductListHandler(c echo.Context) error {
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userID := getUserID(c)
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products, err := h.db.GetAllProducts(userID)
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if err != nil {
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return RenderServerError(c, "Failed to load products. Please try again.")
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}
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return Render(c, ProductListPage(products))
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}
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// ProductCreatePageHandler renders the /product/create form page
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func (h *ProductHandlers) ProductCreatePageHandler(c echo.Context) error {
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return Render(c, ProductCreatePage())
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}
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// ProductEditPageHandler renders the /product/edit/:sku form page
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func (h *ProductHandlers) ProductEditPageHandler(c echo.Context) error {
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sku := c.Param("sku")
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userID := getUserID(c)
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product, err := h.db.GetProductBySKU(sku, userID)
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if err != nil || product == nil {
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return RenderNotFound(c, "Product not found or you don't have access to it.")
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}
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return Render(c, ProductEditPage(*product))
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}
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// ProductCreateHandler handles POST /product/create
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func (h *ProductHandlers) ProductCreateHandler(c echo.Context) error {
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userID := getUserID(c)
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if userID == "" {
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return c.Redirect(http.StatusFound, "/")
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}
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sku := c.FormValue("sku")
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if sku == "" {
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return c.String(http.StatusBadRequest, "SKU is required")
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}
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name := c.FormValue("name")
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if name == "" {
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return c.String(http.StatusBadRequest, "Name is required")
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}
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// Check if SKU already exists for this user
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existing, _ := h.db.GetProductBySKU(sku, userID)
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if existing != nil {
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return c.String(http.StatusBadRequest, "A product with this SKU already exists")
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}
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hsn := c.FormValue("hsn")
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baseStr := c.FormValue("base_price")
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wholesaleStr := c.FormValue("wholesale_price")
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gstStr := c.FormValue("gst_rate")
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smallQtyStr := c.FormValue("small_order_qty")
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base, _ := strconv.ParseFloat(baseStr, 64)
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wholesale, _ := strconv.ParseFloat(wholesaleStr, 64)
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if wholesale == 0 {
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wholesale = base // default wholesale to base price
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}
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gstRate := 0.18 // default 18%
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switch gstStr {
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case "0":
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gstRate = 0.0
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case "5":
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gstRate = 0.05
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case "12":
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gstRate = 0.12
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case "18":
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gstRate = 0.18
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case "28":
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gstRate = 0.28
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}
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smallQty := 1
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if v, err := strconv.Atoi(smallQtyStr); err == nil && v > 0 {
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smallQty = v
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}
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smallFeeStr := c.FormValue("small_order_fee")
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smallFee, _ := strconv.ParseFloat(smallFeeStr, 64)
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unit := c.FormValue("unit")
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if unit == "" {
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unit = "pcs"
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}
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product := database.Product{
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SKU: sku,
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Name: name,
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HSNCode: hsn,
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BasePrice: base,
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WholesalePrice: wholesale,
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GSTRate: gstRate,
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SmallOrderQty: smallQty,
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SmallOrderFee: smallFee,
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Unit: unit,
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}
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if err := h.db.CreateProduct(product, userID); err != nil {
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return c.String(http.StatusInternalServerError, "failed to create product")
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}
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// Redirect to product list
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return c.Redirect(http.StatusSeeOther, "/product")
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}
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// ProductUpdateHandler handles POST /product/edit/:sku
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func (h *ProductHandlers) ProductUpdateHandler(c echo.Context) error {
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userID := getUserID(c)
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if userID == "" {
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return c.Redirect(http.StatusFound, "/")
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}
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sku := c.Param("sku")
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// Verify product belongs to user
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existing, _ := h.db.GetProductBySKU(sku, userID)
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if existing == nil {
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return c.String(http.StatusNotFound, "Product not found")
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}
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name := c.FormValue("name")
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if name == "" {
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return c.String(http.StatusBadRequest, "Name is required")
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}
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hsn := c.FormValue("hsn")
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baseStr := c.FormValue("base_price")
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wholesaleStr := c.FormValue("wholesale_price")
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gstStr := c.FormValue("gst_rate")
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smallQtyStr := c.FormValue("small_order_qty")
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base, _ := strconv.ParseFloat(baseStr, 64)
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wholesale, _ := strconv.ParseFloat(wholesaleStr, 64)
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if wholesale == 0 {
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wholesale = base
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}
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gstRate := 0.18
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switch gstStr {
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case "0":
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gstRate = 0.0
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case "5":
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gstRate = 0.05
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case "12":
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gstRate = 0.12
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case "18":
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gstRate = 0.18
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case "28":
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gstRate = 0.28
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}
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smallQty := 1
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if v, err := strconv.Atoi(smallQtyStr); err == nil && v > 0 {
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smallQty = v
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}
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smallFeeStr := c.FormValue("small_order_fee")
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smallFee, _ := strconv.ParseFloat(smallFeeStr, 64)
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unit := c.FormValue("unit")
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if unit == "" {
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unit = "pcs"
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}
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product := database.Product{
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SKU: sku,
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Name: name,
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HSNCode: hsn,
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BasePrice: base,
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WholesalePrice: wholesale,
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GSTRate: gstRate,
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SmallOrderQty: smallQty,
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SmallOrderFee: smallFee,
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Unit: unit,
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}
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if err := h.db.UpdateProduct(product, userID); err != nil {
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return c.String(http.StatusInternalServerError, "failed to update product")
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}
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return c.Redirect(http.StatusSeeOther, "/product")
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}
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// ProductDeleteHandler handles DELETE /product/:sku
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func (h *ProductHandlers) ProductDeleteHandler(c echo.Context) error {
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userID := getUserID(c)
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sku := c.Param("sku")
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if err := h.db.DeleteProduct(sku, userID); err != nil {
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return c.String(http.StatusInternalServerError, "failed to delete product")
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}
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// For HTMX, return empty to remove the row
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if c.Request().Header.Get("HX-Request") == "true" {
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return c.NoContent(http.StatusOK)
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}
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return c.Redirect(http.StatusSeeOther, "/product")
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}
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