module LoggedIn.Home.View.Expand exposing
  ( expand
  , ExpandType(..)
  )

import Html exposing (..)
import Html.Attributes exposing (..)

import Msg exposing (Msg)

import View.Icon exposing (renderIcon)

type ExpandType = ExpandUp | ExpandDown

expand : ExpandType -> Bool -> Html Msg
expand expandType isExpanded =
  div
    [ class "expand" ]
    [ renderIcon (chevronIcon expandType isExpanded) ]

chevronIcon : ExpandType -> Bool -> String
chevronIcon expandType isExpanded =
  case (expandType, isExpanded) of
    (ExpandUp, True)    -> "chevron-down"
    (ExpandUp, False)   -> "chevron-up"
    (ExpandDown, True)  -> "chevron-up"
    (ExpandDown, False) -> "chevron-down"