jcbantuelle/dominion-meteor

Alms = class Alms extends Event {

  coin_cost() {
    return 0
  }

  buy(game, player_cards) {
    game.turn.forbidden_events.push(this.name())
    let treasures = _.filter(player_cards.in_play, function(card) {
      return _.includes(_.words(card.types), 'treasure')
    })
    if (_.size(treasures) === 0) {
      let eligible_cards = _.filter(game.cards, function(card) {
        return card.count > 0 && card.supply && CardCostComparer.coin_less_than(game, card.top_card, 5)
      })

      if (_.size(eligible_cards) > 1) {
        let turn_event_id = TurnEventModel.insert({
          game_id: game._id,
          player_id: player_cards.player_id,
          username: player_cards.username,
          type: 'choose_cards',
          game_cards: true,
          instructions: 'Choose a card to gain:',
          cards: eligible_cards,
          minimum: 1,
          maximum: 1
        })
        let turn_event_processor = new TurnEventProcessor(game, player_cards, turn_event_id)
        turn_event_processor.process(Alms.gain_card)
      } else if (_.size(eligible_cards) === 1) {
        Alms.gain_card(game, player_cards, eligible_cards)
      } else {
        game.log.push(`  but there are no available cards to gain`)
      }
    } else {
      game.log.push(`  but has treasures in play`)
    }
  }

  static gain_card(game, player_cards, selected_cards) {
    let card_gainer = new CardGainer(game, player_cards, 'discard', selected_cards[0].name)
    card_gainer.gain()
  }
}