module App.Nav where

import Prelude
import CSSClasses as C
import Halogen.HTML as HH
import Halogen.HTML.Events as HE
import Halogen.HTML.Properties as HP
import Halogen.HTML.Properties.ARIA as ARIA
import Bulma as Bulma

netlibre_navbar :: forall w i. Boolean -> Boolean -> i -> i -> i -> i -> i -> HH.HTML w i
netlibre_navbar authenticated admin actionHome actionDomainList actionAuthdAdmin actionRegister actionLogin =
  main_nav
    [ nav_brand [ logo, burger_menu ]
    , nav_menu
        [ navbar_start
            [ link_home
            , case authenticated of
                false -> HH.div_ []
                true -> link_domains
            , case authenticated, admin of
                true, true -> link_authd_admin
                _, _ -> HH.div_ []
            --, dropdown "List of something"
            --  [ dropdown_element "something 1"
            --  , dropdown_element "something 2"
            --  , dropdown_element "something 3"
            --  , dropdown_separator
            --  , dropdown_element "something 4"
            --  ]
            ]
        , navbar_end
            [ navbar_item
                [ HH.div [HP.classes C.buttons]
                    [ nav_button_strong "Register" actionRegister
                    , nav_button_light  "Login"    actionLogin
                    ]
                ]
            ]
        ]
    ]
  where
    main_nav = HH.nav [ HP.classes C.navbar, ARIA.label "main navigation", ARIA.role "navigation" ]
    logo = HH.a [HP.classes C.navbar_item, HP.href "/"] [HH.img [HP.src "/logo.jpeg", HP.width 112, HP.height 28]]
    burger_menu
      = HH.a [HP.classes C.navbar_burger, ARIA.label "menu", ARIA.expanded "false", Bulma.data_target "navbarExample" ]
          [ HH.span [ARIA.hidden "true"] []
          , HH.span [ARIA.hidden "true"] []
          , HH.span [ARIA.hidden "true"] []
          ]
    nav_brand = HH.div [HP.classes C.navbar_brand]
    nav_menu = HH.div [HP.id "navbarExample", HP.classes C.navbar_menu]
    navbar_start = HH.div [HP.classes C.navbar_start]
    navbar_end = HH.div [HP.classes C.navbar_end]
    link_home        = HH.a [HP.classes C.navbar_item, HE.onClick (\_ -> actionHome)]       [HH.text "Home"]
    link_domains     = HH.a [HP.classes C.navbar_item, HE.onClick (\_ -> actionDomainList)] [HH.text "Domain List"]
    link_authd_admin = HH.a [HP.classes C.navbar_item, HE.onClick (\_ -> actionAuthdAdmin)] [HH.text "Authd Admin"]
    dropdown title dropdown_elements
      = HH.div [HP.classes (C.navbar_item <> C.has_dropdown <> C.is_hoverable)]
          [ dropdown_title title, HH.div [HP.classes C.navbar_dropdown] dropdown_elements ]
    dropdown_title str = HH.a [HP.classes C.navbar_link] [HH.text str]
    dropdown_element str = HH.a [HP.classes C.navbar_item] [HH.text str]
    dropdown_separator = HH.hr [HP.classes C.navbar_divider]
    nav_button_strong str action
      = HH.a [HP.classes (C.button <> C.is_primary), HE.onClick (\_ -> action)] [HH.strong [] [HH.text str]]
    nav_button_light str action
      = HH.a [HP.classes (C.button <> C.is_light), HE.onClick (\_ -> action)] [HH.text str]
    navbar_item = HH.div [HP.classes C.navbar_item]