module Model exposing
   (
      Type,
      Selection(..),
      State(..),
      get_state,
      invalidate,
      reset,
      clear_error
   )

import Dict

import Battlemap
import Battlemap.Location
import Battlemap.Tile

import Error

import Character

type State =
   Default
   | MovingCharacterWithButtons
   | MovingCharacterWithClick
   | FocusingTile

type Selection =
   None
   | SelectedCharacter Character.Ref
   | SelectedTile Battlemap.Location.Ref

type alias Type =
   {
      state: State,
      battlemap: Battlemap.Type,
      characters: (Dict.Dict Character.Ref Character.Type),
      error: (Maybe Error.Type),
      selection: Selection
   }

get_state : Type -> State
get_state model = model.state

reset : Type -> (Dict.Dict Character.Ref Character.Type) -> Type
reset model characters =
   {model |
      state = Default,
      battlemap = (Battlemap.reset model.battlemap),
      characters = characters,
      error = Nothing,
      selection = None
   }

invalidate : Type -> Error.Type -> Type
invalidate model err = {model | error = (Just err)}

clear_error : Type -> Type
clear_error model = {model | error = Nothing}