package snap

import (
	"net/http"
	"encoding/json"
	"git.thirdmartini.com/pub/snap/auth"
)

type Context struct {
	srv *Server
	auth *auth.AuthData

	w http.ResponseWriter
	r *http.Request
	vars map[string]string
}

type SnapContent struct {
	User string
	Theme string
	Content interface{}
}

func (c *Context) GetRequest() *http.Request {
	return c.r
}

func (c *Context) Writer() http.ResponseWriter {
	return c.w
}


func (c *Context) GetUser() string {
	if c.auth == nil {
		return ""
	}
	return c.auth.User
}

func (c *Context) Error(code int, msg string) {
	c.srv.renderError(c.w, code, msg)
}


func (c *Context) Reply(msg string) {
	c.srv.reply(c.w, msg)
}


func (c *Context) ReplyObject(obj interface{}) {
	msg, err := json.Marshal(obj)
	if err != nil {
		c.Error(400, "Internal Server Error")
	}
	c.Reply(string(msg))
}



func (c *Context) Render(tmpl string, content interface{}) {
	c.srv.render(c.w, tmpl, content)
}


func (c *Context) RenderEx(tmpl string, content interface{}) {
	cnt := SnapContent {
		User: c.GetUser(),
		Theme: c.srv.theme,
		Content:content,
	}
	c.srv.render(c.w, tmpl, &cnt)
}

func (c *Context) GetVar(k string) ( string, bool) {
	v,ok := c.vars[k]
	return v, ok
}

func (c *Context) GetVarDefault(k string,def string) (string) {
	v,ok := c.vars[k]
	if !ok {
		return def
	}
	return v
}

func (c *Context) ParseForm() error {
	return c.r.ParseForm()
}

func (c *Context) FormValue(k string) string {
	return c.r.FormValue(k)
}