package route

import (
	"net/http"
	"strings"

	"forge.cadoles.com/wpetit/hydra-passwordless/internal/config"
	"github.com/pkg/errors"
	"gitlab.com/wpetit/goweb/middleware/container"
	"gitlab.com/wpetit/goweb/service"
	"gitlab.com/wpetit/goweb/service/template"
	"gitlab.com/wpetit/goweb/template/html"
)

func extendTemplateData(w http.ResponseWriter, r *http.Request, data template.Data) template.Data {
	ctn := container.Must(r.Context())
	data, err := template.Extend(data,
		html.WithFlashes(w, r, ctn),
		template.WithBuildInfo(w, r, ctn),
		withBaseURL(w, r, ctn),
	)
	if err != nil {
		panic(errors.Wrap(err, "could not extend template data"))
	}

	return data
}

func withBaseURL(w http.ResponseWriter, r *http.Request, ctn *service.Container) template.DataExtFunc {
	return func(data template.Data) (template.Data, error) {
		conf, err := config.From(ctn)
		if err != nil {
			return nil, errors.WithStack(err)
		}

		data["BaseURL"] = strings.TrimSuffix(conf.HTTP.BaseURL, "/")

		return data, nil
	}
}

func renderErrorPage(w http.ResponseWriter, r *http.Request, statusCode int, title, description string) error {
	ctn := container.Must(r.Context())
	tmpl := template.Must(ctn)

	data := extendTemplateData(w, r, template.Data{
		"ErrorTitle":       title,
		"ErrorDescription": description,
	})

	w.WriteHeader(statusCode)

	if err := tmpl.RenderPage(w, "error.html.tmpl", data); err != nil {
		return errors.Wrap(err, "could not render error page")
	}

	return nil
}