# Nathan Hinton 19 Dec 2025


require './game'
require './player'

RSpec.describe Game do
  describe '#initialize' do
    it 'Creates an empty list of players' do
      expect(Game.new().players).to eq []
    end

    it 'sets the width when passed in' do
      expect(Game.new(width: 10).width).to eq 10
    end

    it 'sets the height when passed in' do
      expect(Game.new(height: 11).height).to eq 11
    end

    it 'creates the specified number of planets' do
      expect(Game.new(planets: 5).planets.length).to eq 5
    end
  end


  describe '#add_player' do
    it 'adds a player to the game' do
      game = Game.new(planets: 1)
      player = Player.new()
      game.add_player(player)
      expect(game.players).to eq [player]
    end

    it 'fails when there are no planets available for the player' do
      game = Game.new(planets: 0)
      player = Player.new()
      expect{game.add_player(player)}.to raise_error GameError, "No available planets to add player to"
      expect(game.players).to eq []
    end
  end


  describe '#remove_player' do
    it 'removes a player from the game' do
      game = Game.new(planets: 1)
      player = Player.new()
      game.add_player(player)
      expect(game.players).to eq [player]
      expect(game.remove_player(player)).to eq player
      expect(game.players).to eq []
    end

    it 'returns an error when the player is not in the game' do
      game = Game.new(planets: 1)
      player = Player.new()
      game.add_player(player)
      player2 = Player.new()
      expect{game.remove_player(player2)}.to raise_error GameError, 'Player not found to remove!'
    end
  end

  describe '#check_id' do
    it 'returns true when the player id is valid for a player' do
      game = Game.new(planets: 1)
      player = Player.new()
      game.add_player(player)
      expect(game.check_id(player.get_id)).to eq player
    end

    it 'returns false when the player id does not match a player' do
      game = Game.new(planets: 1)
      player = Player.new()
      game.add_player(player)
      expect{game.check_id('a')}.to raise_error GameError, 'Invalid player id!'
    end
  end

  describe '#get_captured_planets' do
    it 'returns the captured planets of the player' do
      game = Game.new(planets: 1)
      player = Player.new()
      game.add_player(player)
      expect(game.get_captured_planets(player.get_id)).to eq game.instance_variable_get(:@planets)
    end
  end

  describe '#find_player' do
    it 'returns false if the player is not in the game' do
      game = Game.new()
      expect(game.find_player('bill')).to eq false
    end

    it 'returns true if the player is in the game' do
      game = Game.new(planets: 1)
      game.add_player(Player.new(name: 'bob'))
      expect(game.find_player('bob')).to eq true
    end
  end
end