module LoggedIn.Home.AddPayment.View
  ( view
  ) where

import Result exposing (..)

import Html as H exposing (..)
import Html.Attributes exposing (..)
import Html.Events exposing (..)

import LoggedIn.Action as LoggedInAction

import LoggedIn.Home.Action as HomeAction
import LoggedIn.Home.Model as HomeModel

import LoggedIn.Home.AddPayment.Action as AddPaymentAction
import LoggedIn.Home.AddPayment.Model as AddPaymentModel

import Model.Payment exposing (Frequency(..))
import Model.Translations exposing (getMessage)
import LoggedData exposing (LoggedData)

import Action
import Mailbox

import View.Events exposing (onSubmitPrevDefault)
import View.Icon exposing (..)

import Utils.Maybe exposing (isJust)
import Utils.Either exposing (toMaybeError)

view : LoggedData -> HomeModel.Model -> Html
view loggedData homeModel =
  H.form
    [ let update =
            if homeModel.add.waitingServer
              then
                Action.NoOp
              else
                Action.UpdateLoggedIn <| LoggedInAction.AddPayment homeModel.add.name homeModel.add.cost homeModel.add.frequency
      in  onSubmitPrevDefault Mailbox.address update
    , class "addPayment"
    ]
    [ addPaymentName loggedData homeModel.add
    , addPaymentCost loggedData homeModel.add
    , paymentFrequency loggedData homeModel.add
    , button
        [ type' "submit"
        , classList
            [ ("add", True)
            , ("waitingServer", homeModel.add.waitingServer)
            ]
        ]
        [ text (getMessage "Add" loggedData.translations)
        , if homeModel.add.waitingServer then renderSpinIcon else text ""
        ]
    ]

addPaymentName : LoggedData -> AddPaymentModel.Model -> Html
addPaymentName loggedData addPayment =
  div
    [ classList
        [ ("name", True)
        , ("error", isJust addPayment.nameError)
        ]
    ]
    [ input
        [ id "nameInput"
        , value addPayment.name
        , on "input" targetValue (Signal.message Mailbox.address << Action.UpdateLoggedIn << LoggedInAction.HomeAction << HomeAction.UpdateAdd << AddPaymentAction.UpdateName)
        , maxlength 20
        ]
        []
    , label
        [ for "nameInput" ]
        [ renderIcon "shopping-cart" ]
    , case addPayment.nameError of
        Just error ->
          div [ class "errorMessage" ] [ text error ]
        Nothing ->
          text ""
    ]

addPaymentCost : LoggedData -> AddPaymentModel.Model -> Html
addPaymentCost loggedData addPayment =
  div
    [ classList
        [ ("cost", True)
        , ("error", isJust addPayment.costError)
        ]
    ]
    [ input
        [ id "costInput"
        , value addPayment.cost
        , on "input" targetValue (Signal.message Mailbox.address << Action.UpdateLoggedIn << LoggedInAction.HomeAction << HomeAction.UpdateAdd << AddPaymentAction.UpdateCost)
        , maxlength 7
        ]
        []
    , label
        [ for "costInput" ]
        [ text loggedData.conf.currency ]
    , case addPayment.costError of
        Just error ->
          div [ class "errorMessage" ] [ text error ]
        Nothing ->
          text ""
    ]

paymentFrequency : LoggedData -> AddPaymentModel.Model -> Html
paymentFrequency loggedData addPayment =
  button
    [ type' "button"
    , class "frequency"
    , onClick Mailbox.address (Action.UpdateLoggedIn << LoggedInAction.HomeAction << HomeAction.UpdateAdd <| AddPaymentAction.ToggleFrequency)
    ]
    [ div
        [ classList
            [ ("punctual", True)
            , ("selected", addPayment.frequency == Punctual)
            ]
        ]
        [ text (getMessage "Punctual" loggedData.translations) ]
    , div
        [ classList
            [ ("monthly", True)
            , ("selected", addPayment.frequency == Monthly)
            ]
        ]
        [ text (getMessage "Monthly" loggedData.translations) ]
    ]