feat: add budgets

internal/budget/handler.go

@@ -0,0 +1,119 @@
+package budget
+
+import (
+	"fmt"
+	"log/slog"
+	"math"
+	"net/http"
+	"spend-sparrow/internal/core"
+	"strconv"
+
+	"github.com/google/uuid"
+)
+
+const (
+	DECIMALS_MULTIPLIER = 100
+)
+
+type Handler interface {
+	Handle(router *http.ServeMux)
+}
+
+type HandlerImpl struct {
+	s Service
+	r *core.Render
+}
+
+func NewHandler(s Service, r *core.Render) Handler {
+	return HandlerImpl{
+		s: s,
+		r: r,
+	}
+}
+
+func (h HandlerImpl) Handle(r *http.ServeMux) {
+	r.Handle("GET /budget", h.handlePage())
+	// r.Handle("GET /budget/{id}", h.handleTransactionItemComp())
+	r.Handle("POST /budget/{id}", h.handlePost())
+	// r.Handle("DELETE /budget/{id}", h.handleDelete())
+}
+
+func (h HandlerImpl) handlePage() http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		core.UpdateSpan(r)
+
+		user := core.GetUser(r)
+		if user == nil {
+			core.DoRedirect(w, r, "/auth/signin")
+			return
+		}
+
+		// transactions, err := h.s.GetAll(r.Context(), user)
+		// if err != nil {
+		// 	core.HandleError(w, r, err)
+		// 	return
+		// }
+
+		comp := Page()
+		h.r.RenderLayout(r, w, comp, user)
+	}
+}
+
+func (h HandlerImpl) handlePost() http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		core.UpdateSpan(r)
+
+		user := core.GetUser(r)
+		if user == nil {
+			core.DoRedirect(w, r, "/auth/signin")
+			return
+		}
+
+		var (
+			id  uuid.UUID
+			err error
+		)
+
+		idStr := r.PathValue("id")
+		if idStr != "new" {
+			id, err = uuid.Parse(idStr)
+			if err != nil {
+				core.HandleError(w, r, fmt.Errorf("could not parse Id: %w", core.ErrBadRequest))
+				return
+			}
+		}
+
+		valueF, err := strconv.ParseFloat(r.FormValue("value"), 64)
+		if err != nil {
+			core.HandleError(w, r, fmt.Errorf("could not parse value: %w", core.ErrBadRequest))
+			return
+		}
+		value := int64(math.Round(valueF * DECIMALS_MULTIPLIER))
+
+		input := Budget{
+			Id:          id,
+			Value:       value,
+			Description: r.FormValue("description"),
+		}
+
+		var budget *Budget
+		if idStr == "new" {
+			budget, err = h.s.Add(r.Context(), user, input)
+			if err != nil {
+				core.HandleError(w, r, err)
+				return
+			}
+		} else {
+			budget, err = h.s.Update(r.Context(), user, input)
+			if err != nil {
+				core.HandleError(w, r, err)
+				return
+			}
+		}
+
+		// To disable unused variable
+		slog.Info("test", "item", budget)
+		comp := Item()
+		h.r.Render(r, w, comp)
+	}
+}