cake-order-tracker/server/post.go
2025-07-16 22:57:36 +02:00

106 lines
3 KiB
Go

package server
import (
"errors"
"fmt"
"net/http"
"strconv"
"strings"
"time"
"github.com/Bronku/iroon/models"
"gorm.io/gorm"
)
func atoui(input string) (uint, error) {
num, err := strconv.ParseUint(input, 10, 0)
return uint(num), err
}
func (h *Server) postCake(r *http.Request) (any, int, error) {
err := r.ParseForm()
if err != nil {
return nil, http.StatusBadRequest, ErrInvalidForm
}
var postedCake models.Product
postedCake.ID, err = atoui(r.FormValue("id"))
if err != nil {
return nil, http.StatusBadRequest, fmt.Errorf("%w cakeID", ErrWrongValue)
}
postedCake.Name = r.FormValue("name")
postedCake.Price, err = atoui(r.FormValue("price"))
if err != nil {
return nil, http.StatusBadRequest, fmt.Errorf("%w price", ErrWrongValue)
}
result := h.db.Save(&postedCake)
return postedCake, http.StatusAccepted, errors.Join(ErrSavingToDatabase, result.Error)
}
func (h *Server) parseOrder(r *http.Request) (models.Order, error) {
var cakes []models.Product
result := h.db.Find(&cakes)
if result.Error != nil {
return models.Order{}, ErrCatalogueNotFound
}
err := r.ParseForm()
if err != nil {
return models.Order{}, ErrInvalidForm
}
var postedOrder models.Order
postedOrder.ID, err = atoui(r.FormValue("id"))
if err != nil {
return models.Order{}, fmt.Errorf("%w orderID", ErrWrongValue)
}
postedOrder.Prepaid, err = atoui(r.FormValue("paid"))
if err != nil {
return models.Order{}, fmt.Errorf("%w prepaid", ErrWrongValue)
}
postedOrder.Date, err = time.Parse("2006-01-02", r.FormValue("date"))
if err != nil {
return models.Order{}, fmt.Errorf("%w date", ErrWrongValue)
}
postedOrder.OrderItems = make([]models.OrderItem, 0)
for _, e := range cakes {
count, err := atoui(r.FormValue(fmt.Sprintf("cake[%d]", e.ID)))
if err != nil {
continue
}
postedOrder.OrderItems = append(postedOrder.OrderItems, models.OrderItem{Amount: count, Product: e})
}
postedOrder.Name = strings.TrimSpace(r.FormValue("name"))
postedOrder.Surname = strings.TrimSpace(r.FormValue("surname"))
postedOrder.Phone = strings.TrimSpace(r.FormValue("phone"))
postedOrder.Location = strings.TrimSpace(r.FormValue("location"))
postedOrder.Status = strings.TrimSpace(r.FormValue("status"))
return postedOrder, nil
}
func (h *Server) postOrder(r *http.Request) (any, int, error) {
postedOrder, err := h.parseOrder(r)
if err != nil {
return nil, http.StatusBadRequest, err
}
// i have no idea why this works, and other methods don't
err = h.db.Transaction(func(tx *gorm.DB) error {
err = tx.Session(&gorm.Session{FullSaveAssociations: true}).Updates(&postedOrder).Error
if err != nil {
return fmt.Errorf("didn't save the order, %w", err)
}
err = tx.Model(&postedOrder).Association("OrderItems").Replace(postedOrder.OrderItems)
if err != nil {
return fmt.Errorf("didn't save the order items %w", err)
}
return nil
})
if err != nil {
return nil, http.StatusInternalServerError, errors.Join(ErrSavingToDatabase, err)
}
return postedOrder, http.StatusAccepted, nil
}