{-# LANGUAGE MultiParamTypeClasses #-}
{-# LANGUAGE OverloadedStrings     #-}
{-# LANGUAGE QuasiQuotes           #-}
{-# LANGUAGE TemplateHaskell       #-}
{-# LANGUAGE TypeFamilies          #-}
{-# OPTIONS_GHC -fno-warn-unused-top-binds #-}
module Main (main) where

import           Data.Text               (Text)
import           Yesod
import           Yesod.Form.Bulma

data App = App

mkYesod "App" [parseRoutes|
/ HomeR GET POST
|]

instance Yesod App
instance YesodBulma App

instance RenderMessage App FormMessage where
  renderMessage _ _ = defaultFormMessage

data Basic = Basic
  { name     :: Text
  , username :: Text
  , email    :: Text
  , subject  :: Text
  , message  :: Textarea
  , agree    :: Bool
  , question :: Text
  }

basicForm :: Html -> MForm Handler (FormResult Basic, Widget)
basicForm = renderBulma BulmaBasicForm $ Basic
  <$> areq bulmaTextField ("Text input" `withPlaceholder` "Name") Nothing
  <*> areq bulmaTextField ("bulma" `withPlaceholder` "Username") Nothing
  <*> areq bulmaEmailField ("Email input" `withPlaceholder` "Email") Nothing
  <*> areq (bulmaSelectFieldList [("Select dropdown" :: Text, "v1"), ("With options", "v2")] ) "Subject" Nothing
  <*> areq bulmaTextareaField ("Textarea" `withPlaceholder` "Message") Nothing
  <*> areq (bulmaCheckBoxField "I agree to the terms and conditions") "" Nothing
  <*> areq (bulmaRadioFieldList [("yes" :: Text, "y"), ("no", "n")]) "" Nothing
  <*  bulmaSubmit (BulmaSubmit ("Submit" :: Text) "btn-default" [("attribute-name", "attribute-value")])

getHomeR :: Handler Html
getHomeR = do
  ((result, form1), enctype) <- runFormPost basicForm

  defaultLayout $
    case result of
      FormSuccess res ->
        [whamlet|
          <section .section .columns>
            <div .container .column .is-4>
              <form method=post action=@{HomeR} enctype=#{enctype}>
                ^{form1}

            <div .container .column .is-4>
              <table .table>
                <tr><th>Name</th><td>#{name res}</td></tr>
                <tr><th>Username</th><td>#{username res}</td></tr>
                <tr><th>Email</th><td>#{email res}</td></tr>
                <tr><th>Subject</th><td>#{subject res}</td></tr>
                <tr><th>Message</th><td>#{message res}</td></tr>
                <tr><th>Agree</th><td>#{agree res}</td></tr>
                <tr><th>Question</th><td>#{question res}</td></tr>
        |]
      _ ->
        [whamlet|
          <section .section>
            <div .container>
              <form method=post action=@{HomeR} enctype=#{enctype}>
                ^{form1}
        |]

postHomeR :: Handler Html
postHomeR = getHomeR

main :: IO ()
main = warp 3100 App