{-# LANGUAGE OverloadedStrings #-}

module View.Page
  ( page
  ) where

import Data.Text.Internal.Lazy (Text)
import Data.Text.Lazy.Encoding (decodeUtf8)
import Data.Aeson (encode)
import qualified Data.Aeson.Types as Json

import Text.Blaze.Html
import Text.Blaze.Html5
import qualified Text.Blaze.Html5 as H
import Text.Blaze.Html5.Attributes
import qualified Text.Blaze.Html5.Attributes as A
import Text.Blaze.Html.Renderer.Text (renderHtml)

import Design.Global (globalDesign)

import Model.Message
import Model.Json.Conf
import Model.Message.Key (Key, Key(SharedCost))

page :: Conf -> Maybe Key -> Text
page conf mbSignInError =
  renderHtml . docTypeHtml $ do
    H.head $ do
      meta ! charset "UTF-8"
      H.title (toHtml $ getMessage SharedCost)
      script ! src "javascripts/client.js" $ ""
      jsonScript "messages" getTranslations
      jsonScript "conf" conf
      jsonScript "signInError" mbSignInError
      link ! rel "stylesheet" ! type_ "text/css" ! href "css/reset.css"
      link ! rel "stylesheet" ! href "css/font-awesome-4.5.0/css/font-awesome.min.css"
      link ! rel "icon" ! type_ "image/png" ! href "images/icon.png"
      H.style $ toHtml globalDesign
    body $ do
      script ! src "javascripts/main.js" $ ""

jsonScript :: Json.ToJSON a => Text -> a -> Html
jsonScript scriptId json =
  script
    ! A.id (toValue scriptId)
    ! type_ "application/json"
    $ toHtml . decodeUtf8 . encode $ json