using Microsoft.Xna.Framework;

namespace MonoGame.Extended.Tilemaps
{
    /// <summary>
    /// Base class for all tilemap layers.
    /// </summary>
    public abstract class TilemapLayer
    {
        /// <summary>
        /// Gets the name of the layer.
        /// </summary>
        public string Name { get; }

        /// <summary>
        /// Gets or sets the class/type identifier for this layer.
        /// </summary>
        public string Class { get; set; } = string.Empty;

        /// <summary>
        /// Gets or sets a value indicating whether the layer is visible.
        /// </summary>
        public bool IsVisible { get; set; }

        /// <summary>
        /// Gets or sets the opacity of the layer.
        /// </summary>
        /// <value>A value between 0.0 (fully transparent) and 1.0 (fully opaque).</value>
        public float Opacity { get; set; }

        /// <summary>
        /// Gets or sets the tint color applied to the layer.
        /// </summary>
        public Color? TintColor { get; set; }

        /// <summary>
        /// Gets or sets the rendering offset for the layer.
        /// </summary>
        public Vector2 Offset { get; set; }

        /// <summary>
        /// Gets or sets the parallax scrolling factor for this layer, affecting scrolling speed relative to the camera.
        /// </summary>
        /// <value>A factor where (1,1) represents normal scrolling.</value>
        /// <remarks>
        /// A factor of (1, 1) scrolls at normal speed. Values less than 1 create a background effect,
        /// while values greater than 1 create a foreground effect.
        /// This feature is primarily used by Tiled. For other formats, this value will be (1, 1).
        /// </remarks>
        public Vector2 ParallaxFactor { get; set; }

        /// <summary>
        /// Gets the custom properties of the layer.
        /// </summary>
        public TilemapProperties Properties { get; }

        /// <summary>
        /// Gets the bounding rectangle of the layer in world coordinates.
        /// </summary>
        public abstract Rectangle Bounds { get; }

        /// <summary>
        /// Initializes a new instance of the <see cref="TilemapLayer"/> class.
        /// </summary>
        /// <param name="name">The name of the layer.</param>
        protected TilemapLayer(string name)
        {
            Name = name;
            IsVisible = true;
            Opacity = 1.0f;
            ParallaxFactor = Vector2.One;
            Properties = new TilemapProperties();
        }
    }
}