using Microsoft.Xna.Framework;
using RecrownedAthenaeum.Pipeline.NinePatch;

namespace RecrownedAthenaeum.Pipeline.TextureAtlas
{
    /// <summary>
    /// Data transfer object for a texture atlas.
    /// </summary>
    public class TextureAtlasData
    {
        /// <summary>
        /// Contains the regions of the texture atlas.
        /// </summary>
        public AtlasRegionData[] regions;
        /// <summary>
        /// The name of the file.
        /// </summary>
        public string textureName;

        /// <summary>
        /// Creates the atlas given the regions and the file name of the texture file to be used.
        /// </summary>
        /// <param name="textureName"></param>
        /// <param name="regions"></param>
        public TextureAtlasData(string textureName, AtlasRegionData[] regions)
        {
            this.regions = regions;
            this.textureName = textureName;
        }

        /// <summary>
        /// Data object that contains information about the region ninepatch situation of a given region in an atlas.
        /// </summary>
        public class AtlasRegionData
        {
            /// <summary>
            /// Name of the region for referencial purposes.
            /// </summary>
            public string name;
            /// <summary>
            /// The location of the patch is designated by this rectangle.
            /// </summary>
            public Rectangle location;
            /// <summary>
            /// The ninepatch information.
            /// </summary>
            public NinePatchData ninePatchData;

            /// <summary>
            /// Sets position in atlas for convenience.
            /// </summary>
            /// <param name="x">X coordinate of the position in the patch.</param>
            /// <param name="y">Y coordinate of the position in the patch.</param>
            public void SetPosition(int x, int y)
            {
                location.X = x;
                location.Y = y;
            }

            /// <summary>
            /// Sets the dimensions of the region on the atlas for convenience.
            /// </summary>
            /// <param name="width">Width of the region.</param>
            /// <param name="height">Height of the region.</param>
            public void SetSize(int width, int height)
            {
                location.Width = width;
                location.Height = height;
            }

            /// <summary>
            /// Sets both the coordinates and dimensions of the region on the atlas for convenience.
            /// </summary>
            /// <param name="x">X coordinate of the position in the patch.</param>
            /// <param name="y">Y coordinate of the position in the patch.</param>
            /// <param name="width">Width of the region.</param>
            /// <param name="height">Height of the region.</param>
            public void SetBounds(int x, int y, int width, int height)
            {
                SetPosition(x, y);
                SetSize(width, height);
            }
        }
    }
}