'use strict';

import {
  CardId,
  Effect,
  EngineNode,
  EventCard,
  FactionId,
  Front,
  FrontId,
  FunctionNode,
  Game,
  Icon,
  LeafNode,
  Player,
  PlayerCard,
  SeqNode,
  States,
  View,
} from './types';

import data, {
  ANARCHIST,
  COMMUNIST,
  MODERATE,
  ANARCHISTS_ID,
  COMMUNISTS_ID,
  MODERATES_ID,
  // LIBERTY,
  // COLLECTIVIZATION,
  // GOVERNMENT,
  // SOVIET_SUPPORT,
  // FOREIGN_AID,
  // MORALE_BONUS,
  // TEAMWORK_BONUS,
  // OFF,
  LIBERTY,
  CLOSEST_TO_DEFEAT,
  CLOSEST_TO_VICTORY,
  COLLECTIVIZATION,
  GOVERNMENT,
  INITIATIVE_PLAYER,
  SOVIET_SUPPORT,
  FOREIGN_AID,
  ON,
  PLAYER_WITH_MOST_HERO_POINTS,
  SELF,
  ANY,
  TEAMWORK_BONUS,
  MORALE_BONUS,
  OFF,
  VICTORY,
  DEFEAT,
  FRONTS,
  create_effect,
  AWAY_FROM_CENTER,
  TOWARDS_CENTER,
  ARCHIVES_MEDALLION_ID,
  INTELLIGENCE_MEDALLION_ID,
  // VOLUNTEERS_MEDALLION_ID,
  ORGANIZATION_MEDALLION_ID,
  STRATEGY_MEDALLION_ID,
  PROPAGANDA_MEDALLION_ID,
  VOLUNTEERS_MEDALLION_ID,
  ALL_PLAYERS,
  OTHER_PLAYERS,
  MADRID,
  SOUTHERN,
  COMMUNIST_EXTRA_HERO_POINT,
  LIBERTY_OR_COLLECTIVIZATION,
  ANARCHIST_EXTRA_HERO_POINT,
  ARAGON,
  FASCIST_ID,
  // StaticData,
  // PLAYER_WITH_MOST_HERO_POINTS,
} from './data';

// interface State {
//   inactive: string;
//   prompt: () => void;
// }
const OBSERVER = 'Observer';

const states = {} as States;
let game = {} as Game; // = null
var view = {} as View; // = null

// export const ANARCHIST = 'Anarchist' as Player;
// export const COMMUNIST = 'Communist' as Player;
// export const MODERATE = 'Moderate' as Player;

const role_ids: FactionId[] = [ANARCHISTS_ID, COMMUNISTS_ID, MODERATES_ID];

const faction_player_map: Record<FactionId, Player> = {
  a: ANARCHIST,
  c: COMMUNIST,
  m: MODERATE,
};

const player_faction_map: Record<Player, FactionId> = {
  [ANARCHIST]: ANARCHISTS_ID,
  [COMMUNIST]: COMMUNISTS_ID,
  [MODERATE]: MODERATES_ID,
};

const front_names: Record<string, string> = {
  a: 'Aragon Front',
  m: 'Madrid Front',
  n: 'Northern Front',
  s: 'Southern Front',
  d: 'the Front closest to Defeat',
  v: 'the Front closest to Victory',
};

const bonus_names: string[] = ['Morale Bonus', 'Teamwork Bonus'];

const {
  cards,
  medallions,
  //  fronts,
  tracks,
} = data;

const bonuses = [MORALE_BONUS, TEAMWORK_BONUS];

const faction_cards = {
  [ANARCHISTS_ID]: make_list(37, 54) as CardId[],
  [COMMUNISTS_ID]: make_list(19, 36) as CardId[],
  [MODERATES_ID]: make_list(1, 18) as CardId[],
};

const fascist_decks = {
  1: make_list(55, 72) as CardId[],
  2: make_list(73, 90) as CardId[],
  3: make_list(91, 108) as CardId[],
};

export const scenarios = ['Standard'];

export const roles: Player[] = [ANARCHIST, COMMUNIST, MODERATE];

function gen_action(action: string, argument?: number | string) {
  if (argument === undefined) {
    view.actions![action] = 1;
  } else {
    if (!(action in view.actions)) view.actions[action] = [];
    view.actions[action].push(argument);
  }
}

function gen_action_blank_marker(marker_id: number) {
  gen_action('blank_marker', marker_id);
}

function gen_action_bonus(bonus_id: number) {
  gen_action('bonus', bonus_id);
}

function gen_action_card(card_id: CardId) {
  gen_action('card', card_id);
}

function gen_action_front(front_id: string) {
  gen_action('front', front_id);
}

function gen_action_medallion(medallion_id: number) {
  gen_action('medallion', medallion_id);
}

function gen_action_standee(track_id: number) {
  gen_action('standee', track_id);
}

function gen_spend_hero_points() {
  const faction = get_active_faction();
  const can_spend_hp =
    game.faction_turn === faction && game.hero_points[faction] > 0;
  if (can_spend_hp) {
    gen_action('spend_hp');
  }
}

// function gen_action_space(space) {
//   gen_action('space', space);
// }

// function gen_action_piece(piece) {
//   gen_action('piece', piece);
// }

// function gen_action_card(card) {
//   gen_action('card', card);
// }

export function action(
  state: Game,
  player: Player,
  action: string,
  arg: unknown
) {
  if (action !== 'undo') {
    state.undo = push_undo();
  }

  game = state;
  let S = states[game.state];
  if (action in S) S[action](arg, player);
  else if (action === 'undo' && game.undo && game.undo.length > 0) pop_undo();
  else throw new Error('Invalid action: ' + action);
  return game;
}

// #region ENGINE

const leaf_node = 'l';
const seq_node = 's';
const function_node = 'f';
const resolved = 1;

function create_leaf_node(
  state: string,
  faction: FactionId | 'None',
  args?: any
): LeafNode {
  return {
    t: leaf_node,
    s: state,
    p: faction,
    a: args,
    r: 0,
  };
}

function create_function_node(func_name: string, args?: any): FunctionNode {
  return {
    t: function_node,
    f: func_name,
    a: args,
    r: 0,
  };
}

function create_seq_node(children: EngineNode[]): SeqNode {
  return {
    t: seq_node,
    c: children,
  };
}

// Use to force confirm question if possible to undo
function checkpoint() {
  if (game.undo.length > 0) {
    insert_after_active_node(
      create_leaf_node('confirm_turn', get_active_faction())
    );
  }
  resolve_active_and_proceed();
}

function setup_bag_of_glory() {
  game.engine = [
    create_leaf_node('add_glory', game.initiative),
    create_function_node('end_of_turn'),
  ];
  next();
}

function setup_choose_card() {
  const player_order = get_player_order();
  game.engine = player_order.map((faction_id) =>
    create_leaf_node('choose_card', faction_id)
  );
  game.engine.push(create_function_node('setup_player_turn'));
  next();
}

function setup_final_bid() {
  log_h1('Final Bid');
  const player_order = get_player_order();
  game.engine = player_order.map((faction_id) =>
    create_leaf_node('choose_final_bid', faction_id)
  );
  game.engine.push(create_function_node('checkpoint'));
  game.engine.push(create_function_node('resolve_final_bid'));
  game.engine.push(create_function_node('setup_choose_card'));
  next();
}

function setup_player_turn() {
  const next_faction =
    game.first_player === null
      ? get_player_order()[0]
      : get_next_faction(get_active_faction());

  if (game.first_player === null) {
    game.first_player = next_faction;
  }

  // const player_order = get_player_order();
  // game.engine = player_order.map((faction_id) =>
  //   create_seq_node([
  //     create_function_node('start_of_player_turn', { f: faction_id }),
  //     create_leaf_node('player_turn', faction_id),
  //   ])
  // );
  game.engine = [
    create_function_node('start_of_player_turn', { f: next_faction }),
    create_leaf_node('player_turn', next_faction),
    create_function_node('end_of_player_turn', { f: next_faction }),
  ];

  // game.engine.push(create_function_node('resolve_fascist_test'));
  // game.engine.push(create_function_node('setup_bag_of_glory'));
  next();
}

function end_of_player_turn() {
  if (get_next_faction(get_active_faction()) === game.first_player) {
    game.engine = [
      create_function_node('resolve_fascist_test'),
      create_function_node('setup_bag_of_glory'),
    ];
  } else {
    game.engine = [create_function_node('setup_player_turn')];
  }
  next();
}

function start_of_player_turn() {
  const args = get_active_node_args();
  const player = faction_player_map[args.f];
  log_h2(player, player);
  game.faction_turn = args.f;
  resolve_active_and_proceed();
}

const engine_functions: Record<string, Function> = {
  check_activate_icon,
  checkpoint,
  end_of_player_turn,
  end_of_turn,
  setup_bag_of_glory,
  setup_choose_card,
  setup_final_bid,
  setup_player_turn,
  start_of_player_turn,
  start_year,
  resolve_fascist_test,
  resolve_final_bid,
  // Unique card effects
  card1_event2,
  card3_event2,
  card10_event2,
  card16_event2,
  card17_event3,
  card20_event3,
  card22_event3,
  card23_event1,
  card26_event1,
  card29_event2,
  card35_event2,
  card42_event3,
  card45_event2,
  card46_event3,
  card50_event2,
  card53_event2,
  card54_event1,
  setup_return_card_from_trash,
};

function get_active(
  engine: EngineNode[]
): { parent: EngineNode[]; node: FunctionNode | LeafNode } | null {
  for (let i of engine) {
    if ((i.t === leaf_node || i.t === function_node) && i.r !== resolved) {
      return { parent: engine, node: i };
    }
    if (i.t === seq_node) {
      const next_child = get_active(i.c);
      if (next_child !== null) {
        return next_child;
      }
    }
  }
  return null;
}

function get_active_node(
  engine: EngineNode[] = game.engine
): FunctionNode | LeafNode | null {
  const a = get_active(engine);
  return a === null ? null : a.node;
}

function get_active_node_args<T = any>(): T {
  const node = get_active_node(game.engine);
  if (node.t === leaf_node || node.t === function_node) {
    return node.a;
  }
  return null;
}

function update_active_node_args<T = any>(args: T) {
  const node = get_active_node(game.engine);
  if (node.t === leaf_node || node.t === function_node) {
    node.a = {
      ...node.a,
      ...args,
    };
  }
}

function insert_before_or_after_active_node(
  node: EngineNode,
  position: 'before' | 'after',
  engine: EngineNode[] = game.engine
) {
  const a = get_active(engine);
  if (a === null) {
    return;
  }
  const i = a.parent.indexOf(a.node);
  if (i >= 0) {
    array_insert(a.parent, i + (position == 'after' ? 1 : 0), node);
  }
}

function insert_after_active_node(
  node: EngineNode,
  engine: EngineNode[] = game.engine
) {
  insert_before_or_after_active_node(node, 'after', engine);
}

function insert_before_active_node(
  node: EngineNode,
  engine: EngineNode[] = game.engine
) {
  insert_before_or_after_active_node(node, 'before', engine);
}

function next() {
  const node = get_active_node(game.engine);
  if (node.t === function_node && engine_functions[node.f]) {
    const args = node.a;
    if (args) {
      engine_functions[node.f](args);
    } else {
      engine_functions[node.f]();
    }
  } else if (node.t === 'l') {
    game.state = node.s;

    // Control switches to another player and player can undo
    // so ask to confirm turn
    const current_active = game.active;
    const next_active = faction_player_map[node.p];
    if (next_active !== current_active && game.undo.length > 0) {
      insert_before_active_node(
        create_leaf_node('confirm_turn', get_active_faction())
      );
      game.state = 'confirm_turn';
      return;
    }
    game.active = next_active;
  }
}

function resolve_active_node(checkpoint = false) {
  const next_node = get_active_node(game.engine);
  if (next_node !== null) {
    next_node.r = resolved;
  }
  if (checkpoint) {
    clear_undo();
  }
}

function resolve_active_and_proceed(checkpoint = false) {
  resolve_active_node(checkpoint);
  next();
}

// #endregion

// #region VIEW

export { game_view as view };

function game_view(state: Game, current: Player | 'Observer') {
  game = state;

  const faction: FactionId | null = current === OBSERVER ? null : player_faction_map[current];

  view = {
    engine: game.engine, // TODO: remove
    log: game.log,
    prompt: null,
    bag_of_glory: game.bag_of_glory,
    bonuses: game.bonuses,
    current,
    current_events: game.current_events,
    fronts: game.fronts,
    glory: game.glory,
    hand: faction === null ? [] : game.hands[faction],
    hero_points: game.hero_points,
    initiative: game.initiative,
    medallions: game.medallions,
    played_card: game.played_card,
    player_order: current === OBSERVER ? game.player_order : get_player_order(faction).map((id) => faction_player_map[id]),
    selectable_cards: game.selectable_cards,
    selected_cards: current === OBSERVER ? [] : game.selected_cards[faction],
    tableaus: game.tableaus,
    tracks: game.tracks,
    triggered_track_effects: game.triggered_track_effects,
    used_medallions: game.used_medallions,
    year: game.year,
  };

  if (game.state === 'game_over') {
    view.prompt = game.victory;
  } else if (current !== game.active) {
    let inactive = states[game.state].inactive || game.state;
    view.prompt = `Waiting for ${game.active} to ${inactive}.`;
  } else {
    view.actions = {};
    states[game.state].prompt();
    if (game.undo && game.undo.length > 0) view.actions.undo = 1;
    else view.actions.undo = 0;
  }

  return view;
}

// #endregion

// #region SETUP

export function setup(seed: number, _scenario: string, _options: unknown) {
  // game.seed = seed;
  game = {
    seed: seed,
    state: null,
    active: ANARCHIST,
    active_abilities: [],
    bag_of_glory: [ANARCHISTS_ID, COMMUNISTS_ID, MODERATES_ID],
    blank_markers: [[], [], [], [], []],
    bonuses: [ON, ON],
    current_events: [],
    discard: {
      a: [],
      c: [],
      m: [],
      f: [],
    },
    engine: [],
    faction_turn: null,
    fronts: {
      a: {
        value: -2,
        contributions: [],
        status: null,
      },
      m: {
        value: -2,
        contributions: [],
        status: null,
      },
      n: {
        value: -2,
        contributions: [],
        status: null,
      },
      s: {
        value: -2,
        contributions: [],
        status: null,
      },
    },
    glory: [],
    first_player: null,
    hands: {
      a: [],
      c: [],
      m: [],
    },
    hero_points: {
      a: 2,
      c: 2,
      m: 0,
      pool: 14,
    },
    initiative: MODERATES_ID,
    medallions: {
      a: [],
      c: [],
      m: [],
      pool: [],
    },
    played_card: null,
    player_order: [MODERATE],
    selectable_cards: [],
    selected_cards: {
      a: [],
      c: [],
      m: [],
    },
    tableaus: {
      a: [],
      c: [],
      m: [],
    },
    tracks: [5, 5, 6, 3, 3],
    trash: {
      a: [],
      c: [],
      m: [],
    },
    triggered_track_effects: [],
    log: [],
    undo: [],
    used_medallions: [],
    top_of_events_deck: null,
    turn: 0,
    year: 0,
  };

  // Randomly choose second player
  game.player_order.push(roles[random(2)]);
  // Remaining role is 3rd player
  game.player_order.push(
    game.player_order[1] === ANARCHIST ? COMMUNIST : ANARCHIST
  );

  draw_medallions();

  start_year();
  return game;
}

function draw_hand_cards(faction_id: FactionId, count: number) {
  const deck = list_deck(faction_id);

  if (game.medallions[faction_id].includes(INTELLIGENCE_MEDALLION_ID)) {
    count++;
  }
  const drawn_cards = count;

  // Draw all remaining cards
  if (deck.length < count) {
    count = count - deck.length;
    game.hands[faction_id] = game.hands[faction_id].concat(deck);
    game.discard[faction_id] = [];
  }

  const log =
    drawn_cards === 1
      ? `${get_player(faction_id)} draws 1 card`
      : `${get_player(faction_id)} draws ${drawn_cards} cards`;
  logi(log);

  for (let i = 0; i < count; i++) {
    const deck = list_deck(faction_id);
    game.hands[faction_id].push(draw_card(deck));
  }
}

// #endregion

function start_year() {
  game.year++;
  game.turn = 1;
  game.current_events = [];
  role_ids.forEach((role) => {
    draw_hand_cards(role, 5);
  });
  start_turn();
}

function start_turn() {
  log_h1(`Year ${game.year} - Turn ${game.turn}`);

  const cardId = draw_fascist_card();
  game.current_events.push(cardId);

  const card = cards[cardId] as EventCard;
  log_h2('Fascist Event', 'fascist');
  log(card.title);

  game.engine = card.effects.map((effect) => resolve_effect(effect));
  if (game.year === 3 && game.turn === 4) {
    game.engine.push(create_function_node('setup_final_bid'));
  } else {
    game.engine.push(create_function_node('setup_choose_card'));
  }
  next();
  // game.state = 'resolve_event';
  // game.active = faction_player_map[game.initiative];
  // game.state_data = {
  //   current_effect: 0,
  // };
}

// region STATES

states.activate_icon = {
  inactive: 'activate an icon',
  prompt() {
    gen_spend_hero_points();
    view.prompt = 'Choose an icon to activate';
    const c = cards[game.played_card] as PlayerCard;
    for (const i of c.icons) {
      gen_action(i);
    }
  },
  spend_hp() {
    resolve_spend_hp();
  },
  add_to_front() {
    insert_after_active_node(
      create_leaf_node('add_to_front', get_active_faction(), {
        t: ANY,
        v: get_icon_count_in_tableau('add_to_front'),
      })
    );
    resolve_active_and_proceed();
  },
  collectivization() {
    const count = get_icon_count_in_tableau('collectivization');
    if (can_use_medallion(ORGANIZATION_MEDALLION_ID)) {
      insert_use_organization_medallion_node(COLLECTIVIZATION, count);
    } else {
      move_track(COLLECTIVIZATION, count);
    }
    resolve_active_and_proceed();
  },
  d_collectivization() {
    const count = -1 * get_icon_count_in_tableau('d_collectivization');
    if (can_use_medallion(ORGANIZATION_MEDALLION_ID)) {
      insert_use_organization_medallion_node(COLLECTIVIZATION, count);
    } else {
      move_track(COLLECTIVIZATION, count);
    }
    resolve_active_and_proceed();
  },
  d_foreign_aid() {
    const count = -1 * get_icon_count_in_tableau('d_foreign_aid');
    if (can_use_medallion(ORGANIZATION_MEDALLION_ID)) {
      insert_use_organization_medallion_node(FOREIGN_AID, count);
    } else {
      move_track(FOREIGN_AID, count);
    }
    resolve_active_and_proceed();
  },
  d_government() {
    const count = -1 * get_icon_count_in_tableau('d_government');
    if (can_use_medallion(ORGANIZATION_MEDALLION_ID)) {
      insert_use_organization_medallion_node(GOVERNMENT, count);
    } else {
      move_track(GOVERNMENT, count);
    }
    resolve_active_and_proceed();
  },
  d_liberty() {
    const count = -1 * get_icon_count_in_tableau('d_liberty');
    if (can_use_medallion(ORGANIZATION_MEDALLION_ID)) {
      insert_use_organization_medallion_node(LIBERTY, count);
    } else {
      move_track(LIBERTY, count);
    }
    resolve_active_and_proceed();
  },
  d_soviet_support() {
    const count = -1 * get_icon_count_in_tableau('d_soviet_support');
    if (can_use_medallion(ORGANIZATION_MEDALLION_ID)) {
      insert_use_organization_medallion_node(SOVIET_SUPPORT, count);
    } else {
      move_track(SOVIET_SUPPORT, count);
    }
    resolve_active_and_proceed();
  },
  draw_card() {
    draw_hand_cards(
      get_active_faction(),
      get_icon_count_in_tableau('draw_card')
    );
    resolve_active_and_proceed();
  },
  foreign_aid() {
    const count = get_icon_count_in_tableau('foreign_aid');
    if (can_use_medallion(ORGANIZATION_MEDALLION_ID)) {
      insert_use_organization_medallion_node(FOREIGN_AID, count);
    } else {
      move_track(FOREIGN_AID, count);
    }
    resolve_active_and_proceed();
  },
  government() {
    const direction = game.active === COMMUNIST ? -1 : 1;
    const count = direction * get_icon_count_in_tableau('government');
    if (can_use_medallion(ORGANIZATION_MEDALLION_ID)) {
      insert_use_organization_medallion_node(GOVERNMENT, count);
    } else {
      move_track(GOVERNMENT, count);
    }
    resolve_active_and_proceed();
  },
  government_to_center() {
    const direction = game.tracks[GOVERNMENT] >= 6 ? -1 : 1;
    move_track(
      GOVERNMENT,
      direction * get_icon_count_in_tableau('government_to_center')
    );
    resolve_active_and_proceed();
  },
  liberty() {
    const count = get_icon_count_in_tableau('liberty');
    if (can_use_medallion(ORGANIZATION_MEDALLION_ID)) {
      insert_use_organization_medallion_node(LIBERTY, count);
    } else {
      move_track(LIBERTY, count);
    }
    resolve_active_and_proceed();
  },
  soviet_support() {
    const count = get_icon_count_in_tableau('soviet_support');
    if (can_use_medallion(ORGANIZATION_MEDALLION_ID)) {
      insert_use_organization_medallion_node(SOVIET_SUPPORT, count);
    } else {
      move_track(SOVIET_SUPPORT, count);
    }
    resolve_active_and_proceed();
  },
  teamwork_on() {
    game.bonuses[TEAMWORK_BONUS] = ON;
    resolve_active_and_proceed();
  },
};

states.add_card_to_tableau = {
  inactive: 'add a card to their tableau',
  prompt() {
    gen_spend_hero_points();
    view.prompt = 'Choose a card to add to your tableau';
    const faction = get_active_faction();
    for (const c of game.hands[faction]) {
      gen_action_card(c);
    }
    if (game.hands[faction].length === 0) {
      gen_action('skip');
    }
  },
  spend_hp() {
    resolve_spend_hp();
  },
  card(c: CardId) {
    const faction_id = get_active_faction();
    const card = cards[c];
    array_remove(game.hands[faction_id], game.hands[faction_id].indexOf(c));
    game.tableaus[faction_id].push(c);
    logi(
      `${faction_player_map[faction_id]} adds ${card.title} to their tableau`
    );
    resolve_active_and_proceed();
  },
  skip() {
    resolve_active_and_proceed();
  },
};

states.add_glory = {
  inactive: 'add tokens to the Bag of Glory',
  prompt() {
    gen_spend_hero_points();
    view.prompt = 'Add tokens to the Bag of Glory';
    gen_action('add_glory');
  },
  spend_hp() {
    resolve_spend_hp();
  },
  add_glory() {
    let number = 1;
    if (game.turn === 4) {
      number++;
    }
    add_glory(get_active_faction(), number);
    resolve_active_and_proceed();
  },
};

states.add_to_front = {
  inactive: 'add strength to a Front',
  prompt() {
    gen_spend_hero_points();
    const args = get_active_node_args();
    const possible_fronts = get_fronts_to_add_to(args.t);
    view.prompt =
      possible_fronts.length === 1
        ? `Add strength to ${front_names[possible_fronts[0]]}`
        : 'Add strength to a Front';
    for (let f of possible_fronts) {
      gen_action_front(f);
    }
  },
  spend_hp() {
    resolve_spend_hp();
  },
  front(f: FrontId) {
    const value = get_active_node_args().v;
    update_front(f, value, get_active_faction());
    resolve_active_and_proceed();
  },
};

states.attack_front = {
  inactive: 'attack a Front',
  prompt() {
    gen_spend_hero_points();
    const { t: target, n } = get_active_node_args();

    let fronts: Array<FrontId> = [];

    if (target === ANY) {
      fronts = get_fronts_to_add_to(ANY, n);
    } else if (target === 'd' || target === 'v') {
      fronts = get_fronts_closest_to(target);
    } else if (game.fronts[target].status === DEFEAT) {
      fronts = get_fronts_closest_to('d');
    } else if (game.fronts[target].status === VICTORY) {
      fronts = get_fronts_to_add_to(ANY);
    } else {
      fronts.push(target);
    }
    view.prompt =
      fronts.length === 1
        ? `Attack ${front_names[fronts[0]]}`
        : 'Attack a front';

    fronts.forEach((id) => gen_action('front', id));
  },
  spend_hp() {
    resolve_spend_hp();
  },
  front(f: FrontId) {
    const node = get_active_node();
    const value = node.a.v;
    update_front(f, value);
    resolve_active_and_proceed();
  },
};

states.break_tie_final_bid = {
  inactive: 'break tie for Final Bid',
  prompt() {
    view.prompt = 'Choose the winner of the Final Bid';
    const { winners } = get_active_node_args();
    for (const f of winners) {
      gen_action(faction_player_map[f]);
    }
  },
  Anarchist() {
    win_final_bid(ANARCHISTS_ID);
    resolve_active_and_proceed();
  },
  Communist() {
    win_final_bid(COMMUNISTS_ID);
    resolve_active_and_proceed();
  },
  Moderate() {
    win_final_bid(MODERATES_ID);
    resolve_active_and_proceed();
  },
};

states.break_tie_winner = {
  inactive: 'break tie for winner of the game',
  prompt() {
    view.prompt = 'Choose the winner of the game';
    const { winners } = get_active_node_args();
    for (const f of winners) {
      gen_action(faction_player_map[f]);
    }
  },
  Anarchist() {
    const { glory } = get_active_node_args();
    win_game(ANARCHIST, glory);
    resolve_active_and_proceed();
  },
  Communist() {
    const { glory } = get_active_node_args();
    win_game(COMMUNIST, glory);
    resolve_active_and_proceed();
  },
  Moderate() {
    const { glory } = get_active_node_args();
    win_game(MODERATE, glory);
    resolve_active_and_proceed();
  },
};

states.choose_area_ap = {
  inactive: 'choose area to use Action Points',
  prompt() {
    gen_spend_hero_points();
    view.prompt = 'Choose area of the board to affect';
    for (const track of tracks) {
      gen_action_standee(track.id);
    }
    const fronts = get_fronts_to_add_to(ANY);
    for (const front of fronts) {
      gen_action_front(front);
    }
    for (const bonus of bonuses) {
      if (game.bonuses[bonus] === OFF) {
        gen_action_bonus(bonus);
      }
    }
  },
  spend_hp() {
    resolve_spend_hp();
  },
  bonus(b: number) {
    // Turn on bonus
    update_bonus(b, ON);
    const s: number = get_active_node_args().strength;

    // Check if other bonus can be activated
    const other_bonus = b === TEAMWORK_BONUS ? MORALE_BONUS : TEAMWORK_BONUS;
    if (s > 1 && game.bonuses[other_bonus] === OFF) {
      insert_after_active_node(
        resolve_effect(create_effect('bonus', other_bonus, ON))
      );
    }
    resolve_active_and_proceed();
  },
  front(f: FrontId) {
    const s: number = get_active_node_args().strength;
    update_front(f, s, get_active_faction());
    resolve_active_and_proceed();
  },
  standee(track_id: number) {
    insert_after_active_node({
      t: leaf_node,
      p: get_active_faction(),
      s: 'move_track_up_or_down',
      a: {
        track_id,
        strength: get_active_node()?.a.strength,
      },
    });
    resolve_active_and_proceed();
  },
};

states.change_bonus = {
  inactive: 'select Bonus',
  prompt() {
    gen_spend_hero_points();
    const args = get_active_node_args();
    if (
      (args.v === ON &&
        game.bonuses[TEAMWORK_BONUS] === ON &&
        game.bonuses[MORALE_BONUS] === ON) ||
      (args.v === OFF && game.bonuses[args.t] === OFF)
    ) {
      gen_action('skip');
    }
    if (args.t === ANY && args.v === ON) {
      view.prompt = 'Turn on a Bonus';
      for (const bonus of bonuses) {
        if (game.bonuses[bonus] === OFF) {
          gen_action_bonus(bonus);
        }
      }
    } else {
      view.prompt = `Turn ${args.v === OFF ? 'off' : 'on'} ${
        bonus_names[args.t]
      }`;
      gen_action_bonus(args.t);
    }
  },
  spend_hp() {
    resolve_spend_hp();
  },
  bonus(b: number) {
    const value = get_active_node_args().v;
    update_bonus(b, value);
    resolve_active_and_proceed();
  },
  skip() {
    resolve_active_and_proceed();
  },
};

states.choose_card = {
  inactive: 'choose a card',
  prompt() {
    gen_spend_hero_points();
    view.prompt = 'Choose a card to play this turn';
    const faction = get_active_faction();
    const hand = game.hands[faction];
    for (let c of hand) {
      if (!game.selected_cards[faction].includes(c)) {
        gen_action_card(c);
      }
    }
  },
  spend_hp() {
    resolve_spend_hp();
  },
  card(c: CardId) {
    const faction = get_active_faction();
    game.selected_cards[faction].push(c);
    resolve_active_and_proceed();
  },
};

states.choose_final_bid = {
  inactive: 'choose Final Bid',
  prompt() {
    view.prompt = 'Choose a card to add to the Final Bid';
    const faction = get_active_faction();
    for (let c of game.hands[faction]) {
      if (!game.selected_cards[faction].includes(c)) {
        gen_action_card(c);
      }
    }
    gen_action('done');
  },
  card(c: CardId) {
    const faction = get_active_faction();
    game.selected_cards[faction].push(c);
    const number_selected = game.selected_cards[faction].length;

    const number_hand = game.hands[faction].length;
    if (
      number_selected === 3 ||
      (number_hand < 4 && number_selected === number_hand - 1)
    ) {
      resolve_active_and_proceed();
    } else {
      next();
    }
  },
  done() {
    resolve_active_and_proceed(true);
  },
};

states.choose_medallion = {
  inactive: 'choose a medallion',
  prompt() {
    gen_spend_hero_points();
    view.prompt = 'Choose a medallion';
    for (let m of game.medallions.pool) {
      gen_action_medallion(m);
    }
    if (!game.medallions.pool.some((m) => m !== null)) {
      gen_action('skip');
    }
  },
  spend_hp() {
    resolve_spend_hp();
  },
  medallion(m: number) {
    const faction = get_active_faction();
    const medallion = medallions[m];

    logi(`${faction_player_map[faction]} earns ${medallion.name}`);

    const index = game.medallions.pool.indexOf(m);

    game.medallions.pool[index] = null;

    switch (m) {
      case 0:
        add_glory(faction, 1, true);
        break;
      case 1:
        gain_hero_points(faction, 7);
        break;
      case 2:
        insert_after_active_node(create_leaf_node('choose_card', faction));
        break;
      default:
        game.medallions[faction].push(m);
    }
    resolve_active_and_proceed();
  },
  skip() {
    resolve_active_and_proceed();
  },
};

states.confirm_turn = {
  inactive: 'confirm their turn',
  prompt() {
    view.prompt = 'Confirm your actions or undo';
    gen_action('confirm');
  },
  confirm() {
    resolve_active_and_proceed(true);
  },
};

states.draw_card = {
  inactive: 'draw a card',
  prompt() {
    gen_spend_hero_points();
    const { v } = get_active_node_args();
    view.prompt = v === 1 ? 'Draw a card' : `Draw ${v} cards`;
    gen_action(v === 1 ? 'draw_card' : 'draw_cards');
  },
  spend_hp() {
    resolve_spend_hp();
  },
  draw_card() {
    const { v } = get_active_node_args();
    draw_hand_cards(get_active_faction(), v);
    resolve_active_and_proceed();
  },
  draw_cards() {
    const { v } = get_active_node_args();
    draw_hand_cards(get_active_faction(), v);
    resolve_active_and_proceed();
  },
};

states.end_of_year_discard = {
  inactive: 'discard cards from hand and tableau',
  prompt() {
    view.prompt = 'Discard a card';
    const faction_id = get_active_faction();
    const hand = game.hands[faction_id];
    if (hand.length > get_hand_limit(faction_id)) {
      for (let c of hand) gen_action_card(c);
    }
    const tableau = game.tableaus[faction_id];
    if (tableau.length > game.year) {
      for (let c of tableau) gen_action_card(c);
    }
  },
  card(c: CardId) {
    const faction_id = get_active_faction();
    if (game.hands[faction_id].includes(c)) {
      game.hands[faction_id] = game.hands[faction_id].filter((id) => id !== c);
    } else if (game.tableaus[faction_id].includes(c)) {
      game.tableaus[faction_id] = game.tableaus[faction_id].filter(
        (id) => id !== c
      );
    }
    game.discard[faction_id].push(c);
    if (
      game.hands[faction_id].length > get_hand_limit(faction_id) ||
      game.tableaus[faction_id].length > game.year
    ) {
      // More cards to discard so resolve same state again
      next();
    } else {
      log(`${faction_player_map[faction_id]} discards cards`);
      resolve_active_and_proceed();
    }
  },
};

states.hero_points = {
  inactive: 'gain Hero Points',
  prompt() {
    gen_spend_hero_points();
    const value = get_active_node_args().v;
    if (value < 0) {
      view.prompt =
        value < -1
          ? `Lose ${Math.abs(value)} Hero Points`
          : 'Lose 1 Hero Point';
      gen_action('lose_hp');
      return;
    }
    if (game.hero_points.pool > 0) {
      view.prompt =
        value > 1 ? `Gain ${value} Hero Points` : 'Gain 1 Hero Point';
      gen_action('gain_hp');
    } else {
      view.prompt = 'No Hero Points available in pool. You must skip';
      gen_action('skip');
    }
  },
  spend_hp() {
    resolve_spend_hp();
  },
  gain_hp() {
    const value = get_active_node_args().v;
    gain_hero_points(get_active_faction(), value);
    resolve_active_and_proceed();
  },
  lose_hp() {
    const value = get_active_node_args().v;
    lose_hero_points(get_active_faction(), value);
    resolve_active_and_proceed();
  },
  skip() {
    resolve_active_and_proceed();
  },
};

states.game_over = {
  get inactive() {
    return game.victory;
  },
  prompt() {
    view.prompt = game.victory;
  },
};

function resolve_player_with_most_hero_points(faction: FactionId) {
  const value = get_active_node_args().v;
  if (value < 0) {
    lose_hero_points(faction, value);
  } else {
    gain_hero_points(faction, value);
  }
  resolve_active_and_proceed();
}

states.select_player_with_most_hero_points = {
  inactive: 'choose a Player',
  prompt() {
    gen_spend_hero_points();
    const { v } = get_active_node_args();
    view.prompt =
      v < 0
        ? 'Choose player to lose Hero Points'
        : 'Choose player to gain Hero Points';

    const factions = get_factions_with_most_hero_poins();
    for (let faction_id of factions) {
      gen_action(faction_player_map[faction_id]);
    }
  },
  spend_hp() {
    resolve_spend_hp();
  },
  Anarchist() {
    resolve_player_with_most_hero_points(ANARCHISTS_ID);
  },
  Communist() {
    resolve_player_with_most_hero_points(COMMUNISTS_ID);
  },
  Moderate() {
    resolve_player_with_most_hero_points(MODERATES_ID);
  },
};

states.move_track = {
  inactive: 'move a Track',
  prompt() {
    gen_spend_hero_points();
    const node = get_active_node();
    const track = node.a.t;
    const value = node.a.v;

    const name =
      track === LIBERTY_OR_COLLECTIVIZATION
        ? 'Liberty OR Collectivization'
        : tracks[track].name;

    view.prompt = `Move ${name} ${value > 0 ? 'up' : 'down'}`;
    if (track === GOVERNMENT && value === TOWARDS_CENTER) {
      view.prompt = `Move ${name} towards center`;
    } else if (track === GOVERNMENT && value === AWAY_FROM_CENTER) {
      view.prompt = `Move ${name} away from center`;
    }

    if (track === LIBERTY_OR_COLLECTIVIZATION) {
      gen_action_standee(LIBERTY);
      gen_action_standee(COLLECTIVIZATION);
    } else {
      gen_action_standee(track);
    }
  },
  spend_hp() {
    resolve_spend_hp();
  },
  standee(s: number) {
    const node = get_active_node();
    let value = node.a.v;

    if (
      s === GOVERNMENT &&
      (value === TOWARDS_CENTER || value === AWAY_FROM_CENTER)
    ) {
      const direction = get_government_track_direction(value);
      // Value equals direction because away / towards always moves 1 step
      value = direction;
    }

    move_track(s, value);
    resolve_active_and_proceed();
  },
};

states.move_track_up_or_down = {
  inactive: 'move a track',
  prompt() {
    gen_spend_hero_points();
    const node = get_active_node();
    view.prompt = `Move ${get_track_name(node.a.track_id)} up or down`;
    gen_action('up');
    gen_action('down');
  },
  spend_hp() {
    resolve_spend_hp();
  },
  down() {
    const node = get_active_node();
    move_track(node.a.track_id, -1 * node.a.strength);
    resolve_active_and_proceed();
  },
  up() {
    const node = get_active_node();
    move_track(node.a.track_id, node.a.strength);
    resolve_active_and_proceed();
  },
};

states.peek_fascist_cards = {
  inactive: 'peek at Fascist cards',
  prompt() {
    gen_spend_hero_points();
    view.prompt = 'Choose one card to return to the top of the deck';
    for (const c of game.selectable_cards) {
      gen_action_card(c);
    }
  },
  spend_hp() {
    resolve_spend_hp();
  },
  card(c: CardId) {
    game.top_of_events_deck = c;
    for (const ec of game.selectable_cards) {
      if (ec !== c) {
        game.discard.f.push(ec);
      }
    }
    game.selectable_cards = [];
    resolve_active_and_proceed();
  },
};

function resolve_spend_hp() {
  // insert spend hero points node before current node
  // so it will return to current node after resolving
  insert_before_active_node(
    create_leaf_node('spend_hero_points', get_active_faction())
  );
  log('Spends Hero Points');

  next();
}

states.player_turn = {
  inactive: 'play their turn',
  prompt() {
    gen_spend_hero_points();
    const faction_id = get_active_faction();

    const can_spend_hp =
      game.faction_turn === faction_id && game.hero_points[faction_id] > 0;

    const can_play_card = game.selected_cards[faction_id].length > 0;

    view.prompt = 'Play a card or spend Hero points';
    if (!(can_play_card || can_spend_hp)) {
      view.prompt = 'End turn';
    } else if (!can_play_card && can_spend_hp) {
      view.prompt = 'Spend Hero Points or end turn';
    } else if (can_play_card && !can_spend_hp) {
      view.prompt = 'Play a card';
    }

    // const card = game.cards_in_play[faction_id];
    if (can_play_card) {
      // gen_action_card();
      gen_action('play_for_ap');
      gen_action('play_for_event');
    } else {
      gen_action('done');
    }
  },
  spend_hp() {
    resolve_spend_hp();
  },
  done() {
    game.faction_turn = null;
    game.played_card = null;
    resolve_active_and_proceed(true);
  },
  play_for_ap() {
    const faction = get_active_faction();
    const { strength } = play_card(faction, 'play_for_ap');

    insert_before_active_node(
      create_seq_node([
        create_leaf_node('choose_area_ap', faction, {
          strength,
        }),
        create_function_node('check_activate_icon'),
      ])
    );
    next();
  },
  play_for_event() {
    const faction = get_active_faction();
    const { effects } = play_card(faction, 'play_for_event');

    insert_before_active_node(create_effects_node(effects));

    next();
  },
};

states.remove_blank_marker = {
  inactive: 'remove a Blank marker',
  prompt() {
    gen_spend_hero_points();
    view.prompt = 'Remove a Blank marker';

    for (const b of game.triggered_track_effects) {
      gen_action_blank_marker(b);
    }
  },
  spend_hp() {
    resolve_spend_hp();
  },
  blank_marker(b: number) {
    const faction = get_active_faction();
    pay_hero_points(faction, 1);

    const track_id = Math.floor(b / 11);
    const space_id = b % 11;

    logi(
      `${
        faction_player_map[faction]
      } removes a Blank marker from space ${space_id} of ${get_track_name(
        track_id
      )}`
    );
    game.triggered_track_effects = game.triggered_track_effects.filter(
      (id) => id !== b
    );
    game.used_medallions.push(ARCHIVES_MEDALLION_ID);
    resolve_active_and_proceed();
  },
};

/**
 * Event cards 6 and 39
 * 6: remove 1 attack from up to three fronts
 * 16: Move up to 2 Attacks from a Front to another Front
 * 39: remove up to 3 attacks from a Front; place 2 back(-2)
 */
states.remove_attack_from_fronts = {
  inactive: 'remove attacks',
  prompt() {
    gen_spend_hero_points();
    const { f, v: card_id } = get_active_node_args();
    view.prompt =
      card_id === 6
        ? 'Choose a Front to remove an attack from'
        : 'Choose a Front to remove attacks from';
    const front_data = f ?? {};

    let is_front_with_attacks = false;
    FRONTS.forEach((id) => {
      if (game.fronts[id].value >= 0 || game.fronts[id].status !== null) {
        return;
      }
      if (card_id === 6 && front_data[id]) {
        return;
      }
      is_front_with_attacks = true;
      gen_action_front(id);
    });
    if (!is_front_with_attacks) {
      view.prompt = 'No valid Front to choose. You must skip';
      gen_action('skip');
    }
  },
  spend_hp() {
    resolve_spend_hp();
  },
  front(id: FrontId) {
    const { f, v: card_id } = get_active_node_args();

    const removed_value =
      card_id === 6 ? 1 : Math.min(3, Math.abs(game.fronts[id].value));

    update_front(id, removed_value);

    const fronts = f ?? {};
    fronts[id] = removed_value;

    update_active_node_args({ f: fronts });

    if (card_id === 6 && Object.keys(fronts).length === 3) {
      resolve_active_and_proceed();
    } else if (card_id === 39 || card_id === 16) {
      insert_after_active_node(
        create_leaf_node('attack_front', get_active_faction(), {
          t: ANY,
          v: card_id === 39 ? -2 : -1 * removed_value,
          n: card_id === 16 ? id : undefined,
        })
      );
      resolve_active_and_proceed();
    }
  },
  skip() {
    const { f, v: card_id } = get_active_node_args();
    const values: number[] = Object.values(f ?? {});
    if (card_id === 39 && values.length > 0) {
      insert_after_active_node(
        create_leaf_node('attack_front', get_active_faction(), {
          t: ANY,
          v: -2,
        })
      );
    }
    resolve_active_and_proceed();
  },
};

states.return_card = {
  inactive: 'return a card to their hand',
  prompt() {
    gen_spend_hero_points();
    view.prompt = 'Choose a card to return to your hand';
    if (game.selectable_cards.length === 0) {
      view.prompt = 'No card in trash to return. You must skip';
      gen_action('skip');
    }
    for (const c of game.selectable_cards) {
      gen_action_card(c);
    }
  },
  spend_hp() {
    resolve_spend_hp();
  },
  card(c: CardId) {
    const faction = get_active_faction();
    array_remove(game.trash[faction], game.trash[faction].indexOf(c));
    game.hands[faction].push(c);
    logi(`${faction_player_map[faction]} returns a card to their hand`);

    game.selectable_cards = [];
    resolve_active_and_proceed();
  },
  skip() {
    game.selectable_cards = [];
    resolve_active_and_proceed();
  },
};

states.spend_hero_points = {
  inactive: 'spend Hero points',
  prompt() {
    view.prompt = 'Spend your Hero points';
    gen_action('done');
    const faction = get_active_faction();

    const hero_points = game.hero_points[get_active_faction()];
    if (hero_points === 0) {
      return;
    }
    gen_action('draw_card');
    if (can_use_medallion(ARCHIVES_MEDALLION_ID, faction)) {
      gen_action('remove_blank_marker');
    }
    if (can_use_medallion(VOLUNTEERS_MEDALLION_ID, faction)) {
      gen_action('add_to_front');
    }
    if (hero_points < 2) {
      return;
    }
    gen_action_standee(FOREIGN_AID);
    gen_action_standee(SOVIET_SUPPORT);
    for (const bonus of bonuses) {
      if (game.bonuses[bonus] === OFF) {
        gen_action_bonus(bonus);
      }
    }

    if (hero_points < 3) {
      return;
    }
    gen_action_standee(COLLECTIVIZATION);
    gen_action_standee(LIBERTY);

    if (hero_points < 4) {
      return;
    }
    gen_action_standee(GOVERNMENT);
  },
  add_to_front() {
    const faction = get_active_faction();
    pay_hero_points(faction, 1);
    insert_after_active_node(
      create_seq_node([
        create_leaf_node('add_to_front', faction, {
          t: ANY,
          v: 1,
        }),
        create_leaf_node('spend_hero_points', faction),
      ])
    );
    resolve_active_and_proceed();
  },
  done() {
    resolve_active_and_proceed();
  },
  bonus(b: number) {
    update_bonus(b, ON);
    pay_hero_points(get_active_faction(), 2);
  },
  draw_card() {
    const faction = get_active_faction();
    pay_hero_points(faction, 1);
    draw_hand_cards(faction, 1);
  },
  remove_blank_marker() {
    const faction = get_active_faction();
    if (game.used_medallions) {
      game.used_medallions.push(ARCHIVES_MEDALLION_ID);
    } else {
      game.used_medallions = [ARCHIVES_MEDALLION_ID];
    }
    insert_after_active_node(
      create_seq_node([
        create_leaf_node('remove_blank_marker', faction),
        create_leaf_node('spend_hero_points', faction),
      ])
    );
    resolve_active_and_proceed();
  },
  standee(track_id: number) {
    let amount = 2;
    if (track_id === LIBERTY || track_id === COLLECTIVIZATION) {
      amount = 3;
    } else if (track_id === GOVERNMENT) {
      amount = 4;
    }
    const faction = get_active_faction();
    pay_hero_points(faction, amount);
    insert_after_active_node(
      create_seq_node([
        create_leaf_node('move_track_up_or_down', faction, {
          track_id,
          strength: 1,
        }),
        create_leaf_node('spend_hero_points', faction),
      ])
    );
    resolve_active_and_proceed();
  },
};

states.swap_card_tableau_hand = {
  inactive: 'swap cards',
  prompt() {
    gen_spend_hero_points();
    view.prompt =
      'Choose a card in your tableau and a card in your hand to swap';
    const faction = get_active_faction();
    gen_action('skip');
    if (game.tableaus[faction].length === 0) {
      view.prompt = 'No card in your tableau to swap. You must skip';
      return;
    }
    if (game.hands[faction].length === 0) {
      view.prompt = 'No card in your hand to swap. You must skip';
      return;
    }
    if (
      !game.selected_cards[faction].some((card_id) =>
        game.hands[faction].includes(card_id)
      )
    ) {
      for (const c of game.hands[faction]) {
        gen_action_card(c);
      }
    }
    if (
      !game.selected_cards[faction].some((card_id) =>
        game.tableaus[faction].includes(card_id)
      )
    ) {
      for (const c of game.tableaus[faction]) {
        gen_action_card(c);
      }
    }
  },
  spend_hp() {
    resolve_spend_hp();
  },
  card(c: CardId) {
    const faction = get_active_faction();
    const selected_cards = game.selected_cards[faction];

    selected_cards.push(c);

    if (selected_cards.length === 2) {
      const hand_card_index = selected_cards.findIndex((card_id) =>
        game.hands[faction].includes(card_id)
      );

      const tableau_card_index = hand_card_index === 0 ? 1 : 0;

      const hand = game.hands[faction];
      const tableau = game.tableaus[faction];

      array_remove(hand, hand.indexOf(selected_cards[hand_card_index]));
      array_remove(
        tableau,
        tableau.indexOf(selected_cards[tableau_card_index])
      );
      hand.push(selected_cards[tableau_card_index]);
      tableau.push(selected_cards[hand_card_index]);
      game.selected_cards[faction] = [];
      resolve_active_and_proceed();
    }
  },
  skip() {
    const faction = get_active_faction();
    game.selected_cards[faction] = [];
    resolve_active_and_proceed();
  },
};

function resolve_take_hero_points(faction: FactionId) {
  const { v } = get_active_node_args();
  const amount = Math.min(v, game.hero_points[faction]);
  lose_hero_points(faction, amount);
  gain_hero_points(get_active_faction(), amount);
  resolve_active_and_proceed();
}

states.take_hero_points = {
  inactive: 'take Hero Points',
  prompt() {
    gen_spend_hero_points();
    const { v } = get_active_node_args();
    view.prompt =
      v === 1
        ? 'Choose a player to take a Hero Point from'
        : `Choose a player to take ${v} Hero Points from`;
    const active_faction = get_active_faction();
    for (const faction of role_ids) {
      if (faction !== active_faction) {
        gen_action(faction_player_map[faction]);
      }
    }
  },
  spend_hp() {
    resolve_spend_hp();
  },
  Anarchist() {
    resolve_take_hero_points(ANARCHISTS_ID);
  },
  Communist() {
    resolve_take_hero_points(COMMUNISTS_ID);
  },
  Moderate() {
    resolve_take_hero_points(MODERATES_ID);
  },
};

states.use_organization_medallion = {
  inactive: 'use Organization Medallion',
  prompt() {
    gen_spend_hero_points();
    view.prompt = 'Use Organization Medallion?';

    gen_action('yes');
    gen_action('no');
  },
  spend_hp() {
    resolve_spend_hp();
  },
  yes() {
    const faction = get_active_faction();
    pay_hero_points(faction, 1);
    game.used_medallions.push(ORGANIZATION_MEDALLION_ID);

    let { t, v } = get_active_node_args();

    if (v > 0) {
      v++;
    } else {
      v--;
    }

    move_track(t, v);
    resolve_active_and_proceed();
  },
  no() {
    const { t, v } = get_active_node_args();

    move_track(t, v);
    resolve_active_and_proceed();
  },
};

states.use_strategy_medallion = {
  inactive: 'use Strategy Medallion',
  prompt() {
    gen_spend_hero_points();
    view.prompt = 'Use Strategy Medallion?';

    gen_action('yes');
    gen_action('no');
  },
  spend_hp() {
    resolve_spend_hp();
  },
  yes() {
    game.used_medallions.push(STRATEGY_MEDALLION_ID);
    const { f } = get_active_node_args();
    const faction = get_active_faction();

    update_front(f, 1, faction);

    resolve_active_and_proceed();
  },
  no() {
    resolve_active_and_proceed();
  },
};

// #endrregion

// #region card effects

function card1_event2() {
  const value = game.tracks[FOREIGN_AID] >= 6 ? 3 : 2;
  insert_after_active_node(
    resolve_effect(create_effect('track', FOREIGN_AID, value))
  );
  resolve_active_and_proceed();
}

function card3_event2() {
  const value = game.tracks[FOREIGN_AID] >= 8 ? 2 : 1;
  insert_after_active_node(
    resolve_effect(create_effect('track', GOVERNMENT, value))
  );
  resolve_active_and_proceed();
}

function card10_event2() {
  if (game.tracks[FOREIGN_AID] >= 6) {
    resolve_effect(create_effect('draw_card', SELF, 2));
  }
  resolve_active_and_proceed();
}

function card16_event2() {
  const value = game.tracks[GOVERNMENT] >= 6 ? 4 : 3;

  insert_after_active_node(
    resolve_effect(create_effect('track', FOREIGN_AID, value))
  );
  resolve_active_and_proceed();
}

function card17_event3() {
  const value = game.tracks[GOVERNMENT] >= 6 ? -4 : -3;
  insert_after_active_node(
    resolve_effect(create_effect('track', COLLECTIVIZATION, value))
  );
  resolve_active_and_proceed();
}

function card20_event3() {
  const value = game.tracks[SOVIET_SUPPORT] >= 6 ? 2 : 1;
  insert_after_active_node(
    create_seq_node([
      resolve_effect(create_effect('front', MADRID, value)),
      resolve_effect(create_effect('front', SOUTHERN, value)),
    ])
  );
  resolve_active_and_proceed();
}

function card22_event3() {
  const value = game.tracks[SOVIET_SUPPORT] >= 8 ? -3 : -3;
  insert_after_active_node(
    resolve_effect(create_effect('track', GOVERNMENT, value))
  );
  resolve_active_and_proceed();
}

function card23_event1() {
  const value = game.tracks[SOVIET_SUPPORT] >= 6 ? 4 : 3;
  insert_after_active_node(resolve_effect(create_effect('front', ANY, value)));
  resolve_active_and_proceed();
}

function card26_event1() {
  game.active_abilities.push(COMMUNIST_EXTRA_HERO_POINT);
  resolve_active_and_proceed();
}

function card29_event2() {
  const value = game.tracks[GOVERNMENT] <= 5 ? -3 : -2;
  insert_after_active_node(
    resolve_effect(create_effect('track', LIBERTY, value))
  );
  resolve_active_and_proceed();
}

function card35_event2() {
  const value = game.tracks[GOVERNMENT] <= 5 ? 2 : 1;
  insert_after_active_node(
    resolve_effect(create_effect('track', SOVIET_SUPPORT, value))
  );
  resolve_active_and_proceed();
}

function card42_event3() {
  game.active_abilities.push(ANARCHIST_EXTRA_HERO_POINT);
  resolve_active_and_proceed();
}

function card45_event2() {
  if (game.tracks[LIBERTY] >= 6) {
    insert_after_active_node(
      resolve_effect(create_effect('track', COLLECTIVIZATION, 1))
    );
  }
  resolve_active_and_proceed();
}

function card46_event3() {
  for (let i = 0; i < 3; ++i) {
    game.selectable_cards.push(draw_fascist_card());
  }
  resolve_active_and_proceed();
}

function card50_event2() {
  const value = game.tracks[COLLECTIVIZATION] >= 8 ? 3 : 2;
  insert_after_active_node(
    resolve_effect(create_effect('front', ARAGON, value))
  );
  resolve_active_and_proceed();
}

function card53_event2() {
  const value = game.tracks[LIBERTY] >= 8 ? 3 : 2;
  insert_after_active_node(resolve_effect(create_effect('front', ANY, value)));
  resolve_active_and_proceed();
}

function card54_event1() {
  const value = game.tracks[COLLECTIVIZATION] >= 8 ? 3 : 2;
  insert_after_active_node(
    resolve_effect(create_effect('track', LIBERTY, value))
  );
  resolve_active_and_proceed();
}

function setup_return_card_from_trash() {
  const faction = get_active_faction();
  game.selectable_cards = game.trash[faction].filter(
    (c) => c !== game.played_card
  );
  resolve_active_and_proceed();
}

// #endregion

// #region GAME FUNCTIONS

function add_glory(
  faction: FactionId,
  amount: number,
  indent: boolean = false
) {
  for (let i = 0; i < amount; ++i) {
    game.bag_of_glory.push(get_active_faction());
  }

  let text =
    amount === 1
      ? `${faction_player_map[faction]} adds 1 token to the Bag of Glory`
      : `${faction_player_map[faction]} adds ${amount} tokens to the Bag of Glory`;

  if (indent) {
    logi(text);
  } else {
    log_h3(text);
  }
}

// Check if Morale bonus is on so player can activate icon
function check_activate_icon() {
  if (game.bonuses[MORALE_BONUS] === ON) {
    insert_after_active_node(
      create_leaf_node('activate_icon', get_active_faction())
    );
  }
  resolve_active_and_proceed();
}

function check_initiative() {
  let initiative: FactionId;
  if (game.tracks[LIBERTY] >= 6 && game.tracks[COLLECTIVIZATION] >= 6) {
    initiative = ANARCHISTS_ID;
  } else if (game.tracks[GOVERNMENT] <= 5) {
    initiative = COMMUNISTS_ID;
  } else {
    initiative = MODERATES_ID;
  }

  if (game.initiative === initiative) {
    return;
  }
  game.initiative = initiative;
  logi(`${faction_player_map[initiative]} claims the Initiative`);
}

function war_is_won() {
  let won_fronts = 0;
  for (const f of FRONTS) {
    if (game.fronts[f].value >= 1) {
      won_fronts++;
    }
  }
  return won_fronts >= 3;
}

function determine_winner() {
  const glory = {
    [ANARCHISTS_ID]: 0,
    [COMMUNISTS_ID]: 0,
    [MODERATES_ID]: 0,
  };
  for (const g of game.glory) {
    glory[g]++;
  }
  let highest_glory = 0;
  let winners = [];
  for (let f of role_ids) {
    if (glory[f] === highest_glory) {
      winners.push(f);
    } else if (glory[f] > highest_glory) {
      highest_glory = glory[f];
      winners = [f];
    }
  }
  if (winners.length === 1) {
    win_game(faction_player_map[winners[0]], highest_glory);
  } else {
    insert_after_active_node(
      create_leaf_node('break_tie_winner', game.initiative, {
        winners,
        glory: highest_glory,
      })
    );
  }
  resolve_active_and_proceed();
}

function end_of_turn() {
  Object.keys(game.fronts).forEach((front_id) => {
    game.fronts[front_id].contributions = [];
  });
  game.active_abilities = [];
  game.used_medallions = [];
  if (game.turn === 4) {
    end_of_year();
  } else {
    game.turn++;
    start_turn();
  }
}

function end_of_year() {
  if (game.year === 3) {
    log_h1('End of the game');
    const is_won = war_is_won();
    if (is_won) {
      log('The war is won!');
    } else {
      game_over('None', 'The war is lost. All Players lose the game!');
      resolve_active_and_proceed();
      return;
    }
  }
  const glory_to_draw = [0, 1, 2, 5];
  const glory_this_year: Record<FactionId, boolean> = {
    a: false,
    c: false,
    m: false,
  };
  for (let i = 0; i < glory_to_draw[game.year]; ++i) {
    const index = random(game.bag_of_glory.length);
    const faction = game.bag_of_glory[index];
    game.glory.push(faction);
    glory_this_year[faction] = true;
    array_remove(game.bag_of_glory, index);
  }

  if (game.year === 3) {
    // end of game
    determine_winner();
    return;
  }

  const players_to_gain_hero_points = role_ids.filter(
    (f) => !glory_this_year[f]
  );
  gain_hero_points_in_player_order(players_to_gain_hero_points, game.year);

  // Setup card discarding
  game.engine = get_player_order().map((f) =>
    create_leaf_node('end_of_year_discard', f)
  );
  game.engine.push(create_function_node('checkpoint'));
  game.engine.push(create_function_node('start_year'));

  // New deck is used for next year so  clear top card
  // if it was set
  game.top_of_events_deck = null;

  next();
}

function gain_hero_points_in_player_order(factions: FactionId[], value) {
  for (const f of get_player_order()) {
    if (factions.includes(f)) {
      gain_hero_points(f, value);
    }
  }
}

function gain_hero_points(
  faction_id: FactionId,
  value: number,
  skip_abilities = false // Used to prevent gaining of extra hero points when taking them from another player
) {
  if (game.hero_points.pool === 0) {
    return;
  }
  if (
    !skip_abilities &&
    ((faction_id === ANARCHISTS_ID &&
      (game.active_abilities || []).includes(ANARCHIST_EXTRA_HERO_POINT)) ||
      (faction_id === COMMUNISTS_ID &&
        (game.active_abilities || []).includes(COMMUNIST_EXTRA_HERO_POINT)))
  ) {
    value++;
  }
  const gain = Math.min(game.hero_points.pool, value);
  game.hero_points.pool -= gain;
  game.hero_points[faction_id] += gain;
  logi(
    `${get_player(faction_id)} +${gain} ${
      gain === 1 ? 'Hero Point' : 'Hero Points'
    }`
  );
}

function game_over(result: Player | 'None', victory: string) {
  insert_after_active_node(create_leaf_node('game_over', 'None'));
  // game.state = 'game_over';
  // game.active = 'None';
  game.result = result;
  game.victory = victory;
  game.undo = [];
  log_br();
  log(game.victory);
}

function get_hand_limit(faction: FactionId) {
  let hand_limit = game.year;
  if (game.medallions[faction].includes(INTELLIGENCE_MEDALLION_ID)) {
    hand_limit++;
  }
  return hand_limit;
}

function play_card(
  faction: FactionId,
  type: 'play_for_event' | 'play_for_ap'
): PlayerCard {
  const index = game.selected_cards[faction].length - 1;
  const card_id = game.selected_cards[faction][index];
  const card = cards[card_id];
  game.played_card = card_id;
  log_h3(
    `${game.active} plays ${card.title} for the ${
      type === 'play_for_event' ? 'Event' : 'Action Points'
    }`
  );
  array_remove(game.hands[faction], game.hands[faction].indexOf(card_id));
  array_remove(game.selected_cards[faction], index);
  if (type === 'play_for_event') {
    game.trash[faction].push(card_id);
  } else {
    game.tableaus[faction].push(card_id);
  }
  return card as PlayerCard;
}

function resolve_fascist_test() {
  log_h2('Fascist Test', 'fascist');

  const test = get_current_event().test;
  const status = game.fronts[test.front].status;
  const test_passed =
    status === VICTORY ||
    (status !== DEFEAT && game.fronts[test.front].value >= test.value);
  if (test_passed) {
    log('The Test is passed');
    for (const faction of get_player_order()) {
      let hero_points_gain = game.fronts[test.front].contributions.includes(
        faction
      )
        ? 2
        : 0;
      if (can_use_medallion(PROPAGANDA_MEDALLION_ID, faction)) {
        hero_points_gain += 2;
      }
      if (hero_points_gain > 0) {
        gain_hero_points(faction, hero_points_gain);
      }
    }
  } else {
    log('The Test is failed');
  }

  const effect = test_passed ? test.pass : test.fail;
  const node = resolve_effect(effect);

  if (node !== null) {
    insert_after_active_node(node);
  }

  resolve_active_and_proceed();
}

function resolve_final_bid() {
  let highest_bid = 0;
  let winners: FactionId[] = [];
  for (const f of get_player_order()) {
    let player_bid = 0;
    for (const c of game.selected_cards[f]) {
      player_bid += (cards[c] as PlayerCard).strength;
    }
    log(`${faction_player_map[f]} bids ${player_bid}`);
    if (player_bid === highest_bid) {
      winners.push(f);
    } else if (player_bid > highest_bid) {
      highest_bid = player_bid;
      winners = [f];
    }
    game.hands[f] = game.hands[f].filter(
      (c) => !game.selected_cards[f].includes(c)
    );
    game.discard[f].concat(game.selected_cards[f]);
    game.selected_cards[f] = [];
  }

  if (winners.length === 1) {
    win_final_bid(winners[0]);
  } else {
    insert_after_active_node(
      create_leaf_node('break_tie_final_bid', game.initiative, { winners })
    );
  }

  resolve_active_and_proceed();
}

function get_fronts_to_add_to(target: string, not: FrontId[] = []): FrontId[] {
  if (target === CLOSEST_TO_DEFEAT || target === CLOSEST_TO_VICTORY) {
    return get_fronts_closest_to(target);
  } else if (target === ANY) {
    return FRONTS.filter(
      (id) => game.fronts[id].status === null && !not.includes(id)
    );
  } else {
    return [target as FrontId];
  }
}

function get_max_value_for_track(track_id: number) {
  switch (track_id) {
    case LIBERTY:
      const max_lib = game.tracks[COLLECTIVIZATION] >= 8 ? 10 : 7;
      return Math.max(max_lib, game.tracks[LIBERTY]);
    case GOVERNMENT:
      const max_gov = game.tracks[FOREIGN_AID] >= 8 ? 10 : 7;
      return Math.max(max_gov, game.tracks[GOVERNMENT]);
    case COLLECTIVIZATION:
    case SOVIET_SUPPORT:
    case FOREIGN_AID:
    default:
      return 10;
  }
}

function get_min_value_for_track(track_id: number) {
  switch (track_id) {
    case GOVERNMENT:
      const min_gov = game.tracks[SOVIET_SUPPORT] >= 8 ? 4 : 1;
      return Math.min(min_gov, game.tracks[GOVERNMENT]);
    case LIBERTY:
    case COLLECTIVIZATION:
    case SOVIET_SUPPORT:
    case FOREIGN_AID:
    default:
      return 0;
  }
}

// TOWARDS_CENTER = 10;
// AWAY_FROM_CENTER = 11;
function get_government_track_direction(direction: 10 | 11): -1 | 1 {
  const value = game.tracks[GOVERNMENT];
  if (
    (direction === TOWARDS_CENTER && value >= 6) ||
    (direction === AWAY_FROM_CENTER && value <= 5)
  ) {
    return -1;
  } else {
    return 1;
  }
}

function move_track(track_id: number, change: number) {
  const current_value = game.tracks[track_id];
  let new_value = current_value + change;
  new_value = Math.max(new_value, get_min_value_for_track(track_id));
  new_value = Math.min(new_value, get_max_value_for_track(track_id));

  game.tracks[track_id] = new_value;
  logi(`${get_track_name(track_id)} to ${new_value}`);

  check_initiative();

  const triggered_spaces =
    change > 0
      ? make_list(current_value + 1, new_value).reverse()
      : make_list(new_value, current_value - 1);

  triggered_spaces.forEach((space_id) => {
    const trigger = tracks[track_id].triggers[space_id];
    if (
      trigger !== null &&
      !game.triggered_track_effects.includes(
        get_blank_marker_id(track_id, space_id)
      )
    ) {
      if (space_id !== 0) {
        game.triggered_track_effects.push(
          get_blank_marker_id(track_id, space_id)
        );
      }
      const node = resolve_effect(trigger);
      if (node !== null) {
        insert_after_active_node(node);
      }
    }
  });
}

function pay_hero_points(faction: FactionId, amount: number) {
  game.hero_points[faction] -= amount;
  game.hero_points.pool += amount;
}

function can_use_medallion(medallion_id: number, faction?: FactionId) {
  faction = faction === undefined ? get_active_faction() : faction;
  const can_use =
    game.medallions[faction].includes(medallion_id) &&
    !game.used_medallions.includes(medallion_id);

  if (medallion_id === ORGANIZATION_MEDALLION_ID) {
    return can_use && game.hero_points[faction] > 0;
  } else {
    return can_use;
  }
}

function insert_use_organization_medallion_node(
  track_id: number,
  value: number
) {
  const faction = get_active_faction();

  insert_after_active_node(
    create_leaf_node('use_organization_medallion', faction, {
      t: track_id,
      v: value,
    })
  );
}

function update_bonus(bonus_id: number, status: number) {
  if (game.bonuses[bonus_id] === status) {
    return;
  }
  game.bonuses[bonus_id] = status;
  logi(`${bonus_names[bonus_id]} ${status === ON ? 'on' : 'off'}`);
}

function update_front(
  // f: string,
  front_id: FrontId,
  change: number,
  faction_id: FactionId | null = null
) {
  // Check teamwork bonus
  const player_token_on_front =
    faction_id !== null &&
    game.fronts[front_id].contributions.includes(faction_id);
  if (
    game.bonuses[TEAMWORK_BONUS] === ON &&
    change > 0 &&
    faction_id !== null &&
    !player_token_on_front &&
    game.fronts[front_id].contributions.length > 0
  ) {
    change += 1;
  }
  const value_before = game.fronts[front_id].value;
  game.fronts[front_id].value += change;
  logi(`${front_names[front_id]}: ${change > 0 ? '+' : ''}${change}`);
  if (
    faction_id !== null &&
    value_before <= 0 &&
    game.fronts[front_id].value > 0
  ) {
    gain_hero_points(faction_id, 1);
  }

  // Add token to front if player contributed
  if (
    faction_id !== null &&
    !game.fronts[front_id].contributions.includes(faction_id)
  ) {
    game.fronts[front_id].contributions.push(faction_id);
  }

  if (
    change > 0 &&
    faction_id !== undefined &&
    game.fronts[front_id].value < 10 &&
    can_use_medallion(STRATEGY_MEDALLION_ID)
  ) {
    insert_after_active_node(
      create_leaf_node('use_strategy_medallion', get_active_faction(), {
        f: front_id,
      })
    );
  }

  // Check victory / defeat on a front
  if (game.fronts[front_id].value >= 10) {
    victory_on_a_front(front_id);
  } else if (game.fronts[front_id].value <= -10) {
    defeat_on_a_front(front_id);
  }
}

function defeat_on_a_front(front_id: FrontId) {
  game.fronts[front_id].status = DEFEAT;
  log('Defeat on ' + get_front_name(front_id));
  // Check game end
  if (front_id === 'm' || get_defeated_front_count() == 2) {
    game_over('None', 'All players lose the game!');
    return;
  }
  insert_after_active_node(
    create_effects_node([
      create_effect('bonus', MORALE_BONUS, OFF),
      create_effect('track', COLLECTIVIZATION, -1),
      create_effect('track', SOVIET_SUPPORT, -1),
      create_effect('track', FOREIGN_AID, -1),
    ])
  );
}

function victory_on_a_front(front_id: FrontId) {
  game.fronts[front_id].status = VICTORY;
  log('Victory on ' + get_front_name(front_id));
  gain_hero_points_in_player_order(game.fronts[front_id].contributions, 3);
}

function create_effects_node(effects: Effect[]): EngineNode {
  const nodes = effects.reduce((accrued: EngineNode[], current: Effect) => {
    const node = resolve_effect(current);
    if (node !== null) {
      accrued.push(node);
    }
    return accrued;
  }, []);
  return create_seq_node(nodes);
}

function get_faction_to_resolve_effect(effect: Effect): FactionId {
  if (!effect.faction) {
    return get_active_faction();
  }
  if (effect.faction === INITIATIVE_PLAYER) {
    return game.initiative;
  }
  return effect.faction;
}

const effect_type_state_map: Record<string, string> = {
  add_card_to_tableau: 'add_card_to_tableau',
  attack: 'attack_front',
  bonus: 'change_bonus',
  front: 'add_to_front',
  medallion: 'choose_medallion',
  remove_blank_marker: 'remove_blank_marker',
  return_card: 'return_card',
  swap_card_tableau_hand: 'swap_card_tableau_hand',
  take_hero_points: 'take_hero_points',
  track: 'move_track',
};

function resolve_effect(
  effect: Effect
  // faction: FactionId = get_active_faction() //
): EngineNode {
  const args = {
    t: effect.target,
    v: effect.value,
  };

  const faction = get_faction_to_resolve_effect(effect);

  if (effect.type === 'function') {
    return create_function_node(effect.target as string);
  }
  if (effect.type === 'state') {
    return create_leaf_node(effect.target as string, faction, {
      v: effect.value,
    });
  }
  // Default cases where effect type is mapped to a state
  let state = effect_type_state_map[effect.type];
  if (state !== undefined) {
    return create_leaf_node(state, faction, args);
  }

  // Specific mapping based on target
  const strategies = [
    {
      condition:
        effect.type === 'hero_points' &&
        effect.target === PLAYER_WITH_MOST_HERO_POINTS,
      resolve: () => {
        return create_leaf_node(
          'select_player_with_most_hero_points',
          faction,
          args
        );
      },
    },
    {
      condition: effect.type === 'hero_points' && effect.target === ALL_PLAYERS,
      resolve: () => {
        return create_seq_node(
          get_player_order().map((faction) =>
            create_leaf_node('hero_points', faction, {
              v: effect.value,
            })
          )
        );
      },
    },
    {
      condition: effect.type === 'hero_points' && effect.target === SELF,
      resolve: () => {
        return create_leaf_node('hero_points', faction, args);
      },
    },
    {
      condition:
        effect.type === 'hero_points' &&
        role_ids.includes(effect.target as FactionId),
      resolve: () => {
        return create_leaf_node(
          'hero_points',
          effect.target as FactionId,
          args
        );
      },
    },
    {
      condition:
        effect.type === 'hero_points' && effect.target === INITIATIVE_PLAYER,
      resolve: () => {
        return create_leaf_node('hero_points', game.initiative, args);
      },
    },
    {
      condition: effect.type === 'draw_card' && effect.target === SELF,
      resolve: () => {
        return create_leaf_node('draw_card', faction, args);
      },
    },
    {
      condition:
        effect.type === 'draw_card' && effect.target === INITIATIVE_PLAYER,
      resolve: () => {
        return create_leaf_node('draw_card', game.initiative, args);
      },
    },
    {
      condition:
        effect.type === 'draw_card' &&
        role_ids.includes(effect.target as FactionId),
      resolve: () => {
        return create_leaf_node('draw_card', effect.target as FactionId, args);
      },
    },
    {
      condition: effect.type === 'draw_card' && effect.target === ALL_PLAYERS,
      resolve: () => {
        return create_seq_node(
          get_player_order(get_active_faction()).map((faction) =>
            create_leaf_node('draw_card', faction, {
              v: effect.value,
            })
          )
        );
      },
    },
    {
      condition: effect.type === 'draw_card' && effect.target === OTHER_PLAYERS,
      resolve: () => {
        const leaf_nodes = get_player_order(get_active_faction()).map(
          (faction) =>
            create_leaf_node('draw_card', faction, {
              v: effect.value,
            })
        );
        array_remove(leaf_nodes, 0);
        return create_seq_node(leaf_nodes);
      },
    },
    {
      condition: effect.type === 'play_card',
      resolve: () => {
        return create_seq_node([
          create_leaf_node('choose_card', faction),
          create_leaf_node('player_turn', faction),
        ]);
      },
    },
  ];

  const strategy = strategies.find((strategy) => strategy.condition);

  if (strategy) {
    return strategy.resolve();
  } else {
    console.log('----UNRESOLVED EFFECT----', effect);
    throw new Error('Unresolved effect');
  }
}

function win_final_bid(faction_id: FactionId) {
  log_br();
  log(`${faction_player_map[faction_id]} wins the Final Bid`);
  game.glory.push(faction_id);
}

function win_game(player: Player, glory: number) {
  game_over(player, `${player} wins the game with a total of ${glory} Glory!`);
}

// #endregion

// #region CARDS
// function draw_faction_card(faction: Player): CardId {
//   return draw_faction_cards(faction, 1)[0];
// }

// function draw_faction_cards(faction: Player, count: number = 1): CardId[] {
//   const drawnCards = [];

// }

function draw_card(deck: CardId[]): CardId {
  clear_undo();
  let i = random(deck.length);
  let c = deck[i] as CardId;
  set_delete(deck, c);
  return c;
}

function draw_fascist_card(): CardId {
  if (game.top_of_events_deck !== null) {
    const card_id = game.top_of_events_deck;
    game.top_of_events_deck = null;
    return card_id;
  }
  return draw_card(list_deck(FASCIST_ID));
}

function lose_hero_points(faction: FactionId, value: number) {
  const points_lost = Math.min(game.hero_points[faction], Math.abs(value));
  game.hero_points.pool += points_lost;
  game.hero_points[faction] -= points_lost;
  if (points_lost === 0) {
    return;
  }
  if (points_lost === 1) {
    log(`${get_player(faction)}: -1 Hero Point`);
  } else {
    log(`${get_player(faction)}: -${points_lost} Hero Points`);
  }
}

// #endregion

// #region FRONTS

function get_fronts_closest_to(target: 'd' | 'v'): FrontId[] {
  const values = Object.values(game.fronts).reduce(
    (accrued: number[], current: Front) => {
      if (current.status === null) {
        accrued.push(current.value);
      }
      return accrued;
    },
    []
  );
  const targetValue =
    target === 'd' ? Math.min(...values) : Math.max(...values);
  return Object.keys(game.fronts).filter(
    (frontId) => game.fronts[frontId].value === targetValue
  ) as FrontId[];
}

// #endregion

// #region LOGGING

function log_br() {
  if (game.log.length > 0 && game.log[game.log.length - 1] !== '')
    game.log.push('');
}

function log(msg: string) {
  game.log.push(msg);
}

// function logevent(cap: Card) {
// 	game.log.push(`E${cap}.`)
// }

// function logcap(cap: Card) {
// 	game.log.push(`C${cap}.`)
// }

function logi(msg: string) {
  log('>' + msg);
}

// function logii(msg: string) {
//   log('>>' + msg);
// }

function log_h1(msg: string) {
  log_br();
  log('.h1 ' + msg);
  log_br();
}

function log_h2(msg: string, player?: Player | 'fascist') {
  log_br();
  log(`.h2${player ? `.${player}` : ''} ${msg}`);
  log_br();
}

// function log_h2_active(msg: string) {
//   log_br();
//   log('.h2 ' + msg);
//   log_br();
// }

// function log_h2_common(msg: string) {
//   log_br();
//   log('.h2 ' + msg);
//   log_br();
// }

function log_h3(msg: string) {
  log_br();
  log('.h3 ' + msg);
}

// function log_h4(msg: string) {
//   log_br();
//   log('.h4 ' + msg);
// }

// #endregion LOGGING

// #region UTILITY

function get_active_faction(): FactionId {
  return player_faction_map[game.active];
}

function get_blank_marker_id(track_id: number, space_id: number) {
  return track_id * 11 + space_id;
}

function get_front_name(id: FrontId | 'd' | 'v') {
  return front_names[id];
}

function get_current_event(): EventCard {
  return cards[
    game.current_events[game.current_events.length - 1]
  ] as EventCard;
}

function get_defeated_front_count() {
  let count = 0;
  for (const front_id of FRONTS) {
    if (game.fronts[front_id].status === DEFEAT) {
      count++;
    }
  }
  return count;
}

function get_icon_count_in_tableau(
  icon: Icon,
  faction: FactionId = get_active_faction()
) {
  let count = 0;
  for (const c of game.tableaus[faction]) {
    const card = cards[c] as PlayerCard;
    for (const i of card.icons) {
      if (i === icon) {
        ++count;
      }
    }
  }
  return count;
}

function get_player(faction_id: FactionId) {
  return faction_player_map[faction_id];
}

function get_player_order(first_player = game.initiative): FactionId[] {
  const order = [];
  let faction = first_player;
  for (let i = 0; i < 3; ++i) {
    order.push(faction);
    faction =
      game.year === 2
        ? get_previous_faction(faction)
        : get_next_faction(faction);
  }

  return order;
}

function get_previous_faction(faction_id: FactionId): FactionId {
  const index = game.player_order.indexOf(faction_player_map[faction_id]);
  if (index === 0) {
    return player_faction_map[game.player_order[2]];
  }
  return player_faction_map[game.player_order[index - 1]];
}

function get_next_faction(faction_id: FactionId): FactionId {
  console.log('get_next', faction_id)
  const index = game.player_order.indexOf(faction_player_map[faction_id]);
  console.log('index', index);
  if (index === 2) {
    return player_faction_map[game.player_order[0]];
  }
  return player_faction_map[game.player_order[index + 1]];
}

function get_factions_with_most_hero_poins(): FactionId[] {
  let most_hero_points = null;
  let faction_ids = [];
  Object.entries(game.hero_points).forEach(([id, value]) => {
    if (id === 'pool') {
      return;
    }
    if (most_hero_points === null || value > most_hero_points) {
      most_hero_points = value;
      faction_ids = [id];
    } else if (most_hero_points === value) {
      faction_ids.push(id);
    }
  });
  return faction_ids;
}

function get_track_name(track_id: number): string {
  return tracks[track_id].name;
}

function make_list(first: number, last: number): number[] {
  let list = [];
  for (let i = first; i <= last; i++) list.push(i);
  return list;
}

function list_deck(id: FactionId | 'f') {
  const deck = [];
  const card_list: CardId[] =
    id === FASCIST_ID ? fascist_decks[game.year] : faction_cards[id];
  card_list.forEach((card) => {
    if (
      game.discard[id].includes(card) ||
      game.selectable_cards.includes(card)
    ) {
      return;
    }

    if (id === FASCIST_ID && game.current_events.includes(card)) {
      return;
    } else if (
      id !== FASCIST_ID &&
      (game.hands[id].includes(card) ||
        game.discard[id].includes(card) ||
        game.tableaus[id].includes(card) ||
        game.trash[id].includes(card))
    ) {
      return;
    }
    deck.push(card);
  });
  return deck;
}

function draw_medallions() {
  const medallion_ids = make_list(0, 8) as number[];
  for (let m = 0; m < 5; ++m) {
    let i = random(medallion_ids.length);
    let r = medallion_ids[i] as CardId;
    set_delete(medallion_ids, r);
    game.medallions.pool.push(r);
  }
}

// #endregion

// #region COMMON LIBRARY

function clear_undo() {
  if (game.undo) {
    game.undo.length = 0;
  }
}

function push_undo() {
  if (game.undo) {
    let copy = {} as Game;
    for (let k in game) {
      let v = game[k];
      if (k === 'undo') continue;
      else if (k === 'log') v = v.length;
      else if (typeof v === 'object' && v !== null) v = object_copy(v);
      copy[k] = v;
    }
    game.undo.push(copy);
  }
  return game.undo;
}

function pop_undo() {
  if (game.undo) {
    let save_log = game.log;
    let save_undo = game.undo;
    game = save_undo.pop();
    (save_log as string[]).length = game.log as unknown as number;
    game.log = save_log;
    game.undo = save_undo;
  }
  next();
}

function random(range: number): number {
  // An MLCG using integer arithmetic with doubles.
  // https://www.ams.org/journals/mcom/1999-68-225/S0025-5718-99-00996-5/S0025-5718-99-00996-5.pdf
  // m = 2**35 − 31
  return (game.seed = (game.seed * 200105) % 34359738337) % range;
}

// Fast deep copy for objects without cycles
function object_copy(original) {
  if (Array.isArray(original)) {
    let n = original.length;
    let copy = new Array(n);
    for (let i = 0; i < n; ++i) {
      let v = original[i];
      if (typeof v === 'object' && v !== null) copy[i] = object_copy(v);
      else copy[i] = v;
    }
    return copy;
  } else {
    let copy = {};
    for (let i in original) {
      let v = original[i];
      if (typeof v === 'object' && v !== null) copy[i] = object_copy(v);
      else copy[i] = v;
    }
    return copy;
  }
}

// Array remove and insert (faster than splice)

function array_remove<T>(array: T[], index: number) {
  let n = array.length;
  for (let i = index + 1; i < n; ++i) array[i - 1] = array[i];
  array.length = n - 1;
}

function array_insert<T>(array: T[], index: number, item: T) {
  for (let i = array.length; i > index; --i) array[i] = array[i - 1];
  array[index] = item;
}

// function array_remove_pair<T>(array: T[], index: number) {
//   let n = array.length;
//   for (let i = index + 2; i < n; ++i) array[i - 2] = array[i];
//   array.length = n - 2;
// }

// function array_insert_pair<K, V>(
//   array: (K | V)[],
//   index: number,
//   key: K,
//   value: V
// ) {
//   for (let i = array.length; i > index; i -= 2) {
//     array[i] = array[i - 2];
//     array[i + 1] = array[i - 1];
//   }
//   array[index] = key;
//   array[index + 1] = value;
// }

// Set as plain sorted array

// function set_clear<T>(set: T[]) {
//   // eslint-disable-line @typescript-eslint/no-unused-vars
//   set.length = 0;
// }

// function set_has<T>(set: T[], item: T) {
//   let a = 0;
//   let b = set.length - 1;
//   while (a <= b) {
//     const m = (a + b) >> 1;
//     const x = set[m];
//     if (item < x) b = m - 1;
//     else if (item > x) a = m + 1;
//     else return true;
//   }
//   return false;
// }

// function set_add<T>(set: T[], item: T) {
//   // eslint-disable-line @typescript-eslint/no-unused-vars
//   let a = 0;
//   let b = set.length - 1;
//   while (a <= b) {
//     const m = (a + b) >> 1;
//     const x = set[m];
//     if (item < x) b = m - 1;
//     else if (item > x) a = m + 1;
//     else return set;
//   }
//   return array_insert(set, a, item);
// }

// function set_delete<T>(set: T[], item: T) {
//   let a = 0;
//   let b = set.length - 1;
//   while (a <= b) {
//     let m = (a + b) >> 1;
//     let x = set[m];
//     if (item < x) b = m - 1;
//     else if (item > x) a = m + 1;
//     else {
//       array_remove(set, m);
//       return;
//     }
//   }
// }

function set_delete<T>(set: T[], item: T) {
  // eslint-disable-line @typescript-eslint/no-unused-vars
  let a = 0;
  let b = set.length - 1;
  while (a <= b) {
    const m = (a + b) >> 1;
    const x = set[m];
    if (item < x) b = m - 1;
    else if (item > x) a = m + 1;
    else return array_remove(set, m);
  }
  return set;
}

// #endregion