package handler

import (
	"html/template"
	"log"
	"net/http"

	"github.com/gorilla/sessions"

	"github.com/sentriz/gonic/model"
)

type templateData struct {
	AlbumCount             int
	AllUsers               []*model.User
	ArtistCount            int
	CurrentLastFMAPIKey    string
	CurrentLastFMAPISecret string
	Flashes                []interface{}
	RecentFolders          []*model.Album
	RequestRoot            string
	SelectedUser           *model.User
	TrackCount             int
	User                   *model.User
}

func renderTemplate(w http.ResponseWriter, r *http.Request,
	tmpl *template.Template, data *templateData) {
	session := r.Context().Value(contextSessionKey).(*sessions.Session)
	if data == nil {
		data = &templateData{}
	}
	data.Flashes = session.Flashes()
	sessionLogSave(w, r, session)
	user, ok := r.Context().Value(contextUserKey).(*model.User)
	if ok {
		data.User = user
	}
	err := tmpl.Execute(w, data)
	if err != nil {
		log.Printf("error executing template: %v\n", err)
		http.Redirect(w, r, "/", http.StatusSeeOther)
		return
	}
}