import { BackgammonBoard } from '.'
import {
  BackgammonCheckerContainer,
  BackgammonMoveDestination,
  BackgammonMoveOrigin,
  BackgammonPoint,
} from './checkercontainer'
import { BackgammonDieValue } from './dice'
import { BackgammonMoveDirection } from './game'
import {
  BackgammonPlayer,
  BackgammonPlayerMoving,
  BackgammonPlayerRolled,
} from './player'

export type BackgammonMoveStateKind =
  | 'ready'
  | 'in-progress'
  | 'completed'
  | 'confirmed'

export type BackgammonMoveKind =
  | 'no-move'
  | 'point-to-point'
  | 'reenter'
  | 'bear-off'

export type BackgammonMoveSkeleton = {
  dieValue: BackgammonDieValue
  direction: BackgammonMoveDirection
  origin: BackgammonMoveOrigin
  destination: BackgammonMoveDestination
}

export interface BackgammonMoveBase {
  id: string
  player: BackgammonPlayer
  dieValue: BackgammonDieValue
  stateKind: BackgammonMoveStateKind
  moveKind: BackgammonMoveKind
}

export interface BackgammonMoveReady extends BackgammonMoveBase {
  stateKind: 'ready'
  origin: BackgammonMoveOrigin
}

export interface BackgammonMoveInProgress extends BackgammonMoveBase {
  stateKind: 'in-progress'
  origin: BackgammonMoveOrigin
  destination: BackgammonMoveDestination
}

export interface BackgammonMoveCompletedWithMove extends BackgammonMoveBase {
  stateKind: 'completed'
  moveKind: 'point-to-point' | 'reenter' | 'bear-off'
  origin: BackgammonMoveOrigin
  destination: BackgammonMoveDestination
  isHit: boolean
}

export interface BackgammonMoveCompletedNoMove extends BackgammonMoveBase {
  stateKind: 'completed'
  moveKind: 'no-move'
  origin?: undefined
  destination?: undefined
  isHit: false
}

export type BackgammonMoveCompleted =
  | BackgammonMoveCompletedWithMove
  | BackgammonMoveCompletedNoMove

export interface BackgammonMoveConfirmedWithMove extends BackgammonMoveBase {
  stateKind: 'confirmed'
  moveKind: 'point-to-point' | 'reenter' | 'bear-off'
  origin: BackgammonMoveOrigin
  destination: BackgammonMoveDestination
  isHit: boolean
}

export interface BackgammonMoveConfirmedNoMove extends BackgammonMoveBase {
  stateKind: 'confirmed'
  moveKind: 'no-move'
  origin?: undefined
  destination?: undefined
  isHit: false
}

export type BackgammonMoveConfirmed =
  | BackgammonMoveConfirmedWithMove
  | BackgammonMoveConfirmedNoMove

export type BackgammonMove =
  | BackgammonMoveReady
  | BackgammonMoveInProgress
  | BackgammonMoveCompleted
  | BackgammonMoveConfirmed

export interface BackgammonMoveResult {
  board: BackgammonBoard
  move: BackgammonMoveCompleted
}

export interface BackgammonMoveDryRunResult {
  board: BackgammonBoard
  move: BackgammonMoveReady | BackgammonMoveCompleted
}

export type BackgammonMoves = Set<BackgammonMove>

export interface MoveProps {
  move: BackgammonMove
  origin: BackgammonMoveOrigin
}

export interface MoveClass {
  player: BackgammonPlayer
  id: string
  dieValue: BackgammonDieValue
  stateKind: BackgammonMoveStateKind
  moveKind: BackgammonMoveKind | undefined
  origin: BackgammonCheckerContainer | undefined
  destination: BackgammonCheckerContainer | undefined

  initialize: (props: MoveProps) => BackgammonMove
  isPointOpen: (
    point: BackgammonPoint,
    player: BackgammonPlayerMoving | BackgammonPlayerRolled
  ) => boolean
  move: (
    board: BackgammonBoard,
    move: BackgammonMoveReady,
    isDryRun?: boolean
  ) => BackgammonMoveResult | BackgammonMoveDryRunResult
  confirmMove: (move: BackgammonMoveInProgress) => BackgammonMoveConfirmed
}