package server

import (
	"errors"
	"fmt"
	"net/http"
	"time"

	"github.com/labstack/echo/v4"

	"github.com/rjNemo/rentease/internal/view"
	myTime "github.com/rjNemo/rentease/pkg/time"
)

func handleHomePage() echo.HandlerFunc {
	return func(ctx echo.Context) error {
		return renderTempl(ctx, http.StatusOK, view.Index())
	}
}

func handleRequestBooking() echo.HandlerFunc {
	return func(c echo.Context) error {
		// validate the form request
		// no time travelling
		fromStr := c.FormValue("from")
		toStr := c.FormValue("to")
		from, fErr := myTime.ParseFromForm(fromStr)
		to, tErr := myTime.ParseFromForm(toStr)
		if fErr != nil || tErr != nil {
			return fmt.Errorf("error parsing booking request time: %q %q", fErr, tErr)
		}

		errs := make([]error, 0)
		if to.Sub(from) < time.Duration(0) {
			errs = append(errs, errors.New("invalid_time_range"))
		}
		// a communication mean
		//
		return renderTempl(c, http.StatusOK, view.RequestBookingForm(errs))
	}
}