package main

import (
	"encoding/json"
	"github.com/dustin/go-humanize"
	"github.com/julienschmidt/httprouter"
	"html/template"
	"net/http"
)

var tpl *template.Template

func init() {
	r := httprouter.New()
	http.Handle("/", r)
	r.GET("/", Home)
	r.GET("/form/login", Login)
	r.GET("/form/signup", Signup)
	r.POST("/api/checkusername", checkUserName)
	r.POST("/api/createuser", createUser)
	r.POST("/api/login", loginProcess)
	r.POST("/api/tweet", tweetProcess)
	r.GET("/api/logout", logout)
	http.Handle("/favicon.ico", http.NotFoundHandler())
	http.Handle("/public/", http.StripPrefix("/public", http.FileServer(http.Dir("public/"))))

	tpl = template.New("roottemplate")
	tpl = tpl.Funcs(template.FuncMap{
		"humanize_time": humanize.Time,
	})

	tpl = template.Must(tpl.ParseGlob("templates/html/*.html"))
}

func Home(res http.ResponseWriter, req *http.Request, _ httprouter.Params) {
	//get tweets
	tweets, err := getTweets(req, nil)
	if err != nil {
		// lala
	}
	memItem, err := getSession(req)
	var sd SessionData
	if err == nil {
		// logged in
		json.Unmarshal(memItem.Value, &sd)
		sd.LoggedIn = true
	}
	sd.Tweets = tweets
	tpl.ExecuteTemplate(res, "home.html", &sd)
}

func Login(res http.ResponseWriter, req *http.Request, _ httprouter.Params) {
	serveTemplate(res, req, "login.html")
}

func Signup(res http.ResponseWriter, req *http.Request, _ httprouter.Params) {
	serveTemplate(res, req, "signup.html")
}

/*
TO DO:
session
-memcache templates
- uuid in a cookie
--- https while logged in? - depends upon security required
- encrypt password on datastore?
--- never store an unencrypted password, so, resoundingly, YES
--- sha-256 fast hash value
- user memcache?
- datastore / memcache
session interface change
- change login button to logout when user logged in
post tweets
follow people
see tweets for everyone
see tweets for individual user
*/