# Nathan Hinton
# Test file for the planets

require 'game/planet'


RSpec.describe Planet do
  let(:planet) {Planet.new(5, 5, 5)}

  before(:all) do
    Dir.mkdir('game_data') unless Dir.exist?('game_data')
  end

  after(:each) do
    # Clean up any save file that might have been created
    save_file = File.join('game_data', "#{planet.planet_id}.save")
    File.delete(save_file) if File.exist?(save_file)
  end

  describe '#initialize' do
    it 'starts with an initial position inside the game board' do
      planet.instance_variable_get(:@position).each do |pos|
        expect(pos < 5).to be true
      end
    end
  end

  describe '#claimable?' do
    it 'is claimable when no owner' do
      expect(planet.claimable?).to be true
    end

    it 'is claimable if owned by another player and has no buildings' do
      planet.instance_variable_set(:@owner, 'nathan')
      expect(planet.claimable?).to be true
    end

    it 'is not claimable if owned by another player and has buildings' do
      planet.instance_variable_set(:@owner, 'nathan')
      planet.instance_variable_set(:@buildings, ['command post'])
      expect(planet.claimable?).to be false
    end
  end

  describe '#claim' do
    it 'sets the owner of the planet to a given player' do
      planet.claim('nathan')
      expect(planet.owner).to eq 'nathan'
    end

    it 'overwrites the player even if it was already set' do
      planet.claim('nathan')
      expect(planet.owner).to eq 'nathan'
      planet.claim('leah')
      expect(planet.owner).to eq 'leah'
    end
  end

  describe '#update' do
    it 'process updates for the planet' do
    end
  end

  describe '#save_to_file' do
    it 'saves the planet to a file' do
      expect{planet.save_to_file}.to_not raise_error
      # Check that save file was created.
      expect(File.exist?(File.join('game_data', "#{planet.planet_id}_planet_.save"))).to be true
    end
  end

  describe '#load_from_save' do
    it 'can load a planet from a save' do
      planet.save_to_file
      expect(File.exist?(File.join('game_data', "#{planet.planet_id}_planet_.save"))).to be true
      expect(Planet.load_from_save(planet.planet_id)).to be_kind_of(Planet)
    end
  end
end