package server

import (
	"fmt"
	"net/http"

	"git.javil.eu/jacob1123/budgeteer/postgres"
	"git.javil.eu/jacob1123/budgeteer/postgres/numeric"
	"github.com/google/uuid"
	"github.com/labstack/echo/v4"
)

type SetCategoryAssignmentRequest struct {
	Assigned float64
}

func (h *Handler) setCategoryAssignment(c echo.Context) error {
	categoryID := c.Param("categoryid")
	categoryUUID, err := uuid.Parse(categoryID)
	if err != nil {
		return echo.NewHTTPError(http.StatusBadRequest, "categoryid missing from URL")
	}

	var request SetCategoryAssignmentRequest
	err = c.Bind(&request)
	if err != nil {
		return echo.NewHTTPError(http.StatusBadRequest, fmt.Errorf("invalid payload: %w", err))
	}

	date, err := getDate(c)
	if err != nil {
		return echo.NewHTTPError(http.StatusBadRequest, fmt.Errorf("date invalid: %w", err))
	}

	var amount numeric.Numeric
	err = amount.Set(request.Assigned)
	if err != nil {
		return echo.NewHTTPError(http.StatusBadRequest, fmt.Errorf("parse amount: %w", err))
	}

	updateArgs := postgres.UpdateAssignmentParams{
		CategoryID: categoryUUID,
		Date:       date.FirstOfMonth(),
		Amount:     amount,
	}
	err = h.Service.UpdateAssignment(c.Request().Context(), updateArgs)
	if err != nil {
		return fmt.Errorf("update assignment: %w", err)
	}

	return nil
}