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module Model.EndTurn exposing (apply_to)

import Dict

import Battlemap

import Character

import Error

import Model

make_it_so : Model.Type -> Model.Type
make_it_so model =
   case model.selection of
      (Model.SelectedCharacter char_id) ->
         case (Battlemap.get_navigator_location model.battlemap) of
            (Just location) ->
               (Model.reset
                  model
                  (Dict.update
                     char_id
                     (\maybe_char ->
                        case maybe_char of
                           (Just char) ->
                              (Just
                                 (Character.set_location location char)
                              )
                           Nothing -> Nothing
                     )
                     model.characters
                  )
               )
            Nothing ->
               (Model.invalidate
                  model
                  (Error.new
                     Error.Programming
                     "EndTurn: model moving char, no navigator location."
                  )
               )
      _ ->
         (Model.invalidate
            model
            (Error.new
               Error.Programming
               "EndTurn: model moving char, no char selected."
            )
         )

apply_to : Model.Type -> Model.Type
apply_to model =
   case (Model.get_state model) of
      Model.MovingCharacterWithButtons -> (make_it_so model)
      Model.MovingCharacterWithClick -> (make_it_so model)
      _ ->
         (Model.invalidate
            model
            (Error.new
               Error.IllegalAction
               "This can only be done while moving a character."
            )
         )