using Snake.Persistance;

namespace view
{
    public partial class MapChooser : Form
    {
        #region Fields
        private SnakeLevelLoader _level_loader;
        #endregion

        #region Properties
        public StoredSnakeLevel? SelectedLevel { get; private set; }
        #endregion

        #region Constructor
        public MapChooser(SnakeLevelLoader level_loader)
        {
            this._level_loader = level_loader;
            InitializeComponent();

            foreach (var level in _level_loader.StoredLevels)
            {
                lstLevels.Items.Add(level.LevelName);
            }
        }
        #endregion

        #region Methods
        void ChooseLevel()
        {
            if (lstLevels.SelectedIndex == -1)
            {
                SelectedLevel = null;
            }
            else
            {
                SelectedLevel = _level_loader.StoredLevels[lstLevels.SelectedIndex];
                Close();
            }
        }
        #endregion

        #region Event handlers
        private void listBox1_SelectedIndexChanged(object sender, EventArgs e)
        {
            if (lstLevels.SelectedIndex == -1)
            {
                txtEggRounds.Text = "";
                txtObstacleCount.Text = "";
                txtSize.Text = "";
                txtSnakeLength.Text = "";
            }
            else
            {
                var level = _level_loader.StoredLevels[lstLevels.SelectedIndex];
                txtEggRounds.Text = level.NewEggRound.ToString();
                txtObstacleCount.Text = level.Obstacles.Length.ToString();
                txtSize.Text = $"{level.Size}x{level.Size}";
                txtSnakeLength.Text = level.SnakeStartLength.ToString();
            }
        }

        private void button1_Click(object sender, EventArgs e)
        {
            ChooseLevel();
        }

        private void lstLevels_KeyUp(object sender, KeyEventArgs e)
        {
            if (e.KeyCode == Keys.Enter)
            {
                ChooseLevel();
            }
        }
        #endregion
    }
}