package app

import (
	"bytes"
	"net/http"
	"net/url"
	"strings"
)

func (s *Server) render(w http.ResponseWriter, name string, data pageData) {
	var buf bytes.Buffer
	if err := s.templates.ExecuteTemplate(&buf, name, data); err != nil {
		http.Error(w, "template error", http.StatusInternalServerError)
		return
	}
	w.Header().Set("Content-Type", "text/html; charset=utf-8")
	_, _ = buf.WriteTo(w)
}

func (s *Server) renderAdmin(w http.ResponseWriter, r *http.Request, fullTemplate, partialTemplate string, data pageData) {
	if r.Header.Get("HX-Request") == "true" {
		s.render(w, partialTemplate, data)
		return
	}
	s.render(w, fullTemplate, data)
}

func (s *Server) renderPublic(w http.ResponseWriter, r *http.Request, fullTemplate, partialTemplate string, data pageData) {
	if r.Header.Get("HX-Request") == "true" {
		s.render(w, partialTemplate, data)
		return
	}
	s.render(w, fullTemplate, data)
}

func (s *Server) error(w http.ResponseWriter, err error) {
	http.Error(w, err.Error(), http.StatusInternalServerError)
}

func (s *Server) redirectAdmin(w http.ResponseWriter, r *http.Request, tab, message string) {
	key := "err"
	for _, success := range []string{" saved", " created", " deleted", " added"} {
		if strings.HasSuffix(message, success) {
			key = "ok"
			break
		}
	}
	http.Redirect(w, r, "/admin/"+tab+"?"+key+"="+url.QueryEscape(message), http.StatusSeeOther)
}