using System;
using Microsoft.Xna.Framework;
using Microsoft.Xna.Framework.Graphics;

namespace MonoGame.Extended.Tilemaps
{

    /// <summary>
    /// Represents a layer that displays a single image.
    /// </summary>
    public class ImageLayer : TilemapLayer
    {
        /// <summary>
        /// Gets or sets the image texture displayed by this layer.
        /// </summary>
        public Texture2D Texture { get; set; }

        /// <summary>
        /// Gets or sets the position of the image.
        /// </summary>
        public Vector2 Position { get; set; }

        /// <summary>
        /// Gets or sets a value indicating whether the image repeats horizontally.
        /// </summary>
        public bool RepeatX { get; set; }

        /// <summary>
        /// Gets or sets a value indicating whether the image repeats vertically.
        /// </summary>
        public bool RepeatY { get; set; }

        /// <inheritdoc/>
        public override Rectangle Bounds
        {
            get
            {
                if (Texture == null)
                {
                    return Rectangle.Empty;
                }

                // For repeating images, bounds are theoretically infinite
                // Return the base texture size at the layer's position
                return new Rectangle(
                    (int)Position.X,
                    (int)Position.Y,
                    Texture.Width,
                    Texture.Height
                );
            }
        }

        /// <summary>
        /// Initializes a new instance of the <see cref="ImageLayer"/> class.
        /// </summary>
        /// <param name="name">The name of the layer.</param>
        /// <param name="texture">The image texture.</param>
        /// <param name="position">The position of the image.</param>
        public ImageLayer(string name, Texture2D texture, Vector2 position) : base(name)
        {
            Texture = texture;
            Position = position;
        }
    }
}