// ReSharper disable UnusedMember.Global

using System.Collections.Generic;
using System.Linq;

namespace RGB.NET.Core
{
    public static class SurfaceExtensions
    {
        #region Methods

        public static void Load(this RGBSurface surface, IRGBDeviceProvider deviceProvider, RGBDeviceType loadFilter = RGBDeviceType.All, bool throwExceptions = false)
        {
            if (!deviceProvider.IsInitialized)
                deviceProvider.Initialize(loadFilter, throwExceptions);

            surface.Attach(deviceProvider.Devices);
        }


        public static void Attach(this RGBSurface surface, IEnumerable<IRGBDevice> devices)
        {
            foreach (IRGBDevice device in devices)
                surface.Attach(device);
        }

        public static void Detach(this RGBSurface surface, IEnumerable<IRGBDevice> devices)
        {
            foreach (IRGBDevice device in devices)
                surface.Detach(device);
        }

        /// <summary>
        /// Gets all devices of a specific type.
        /// </summary>
        /// <typeparam name="T">The type of devices to get.</typeparam>
        /// <returns>A collection of devices with the specified type.</returns>
        public static IEnumerable<T> GetDevices<T>(this RGBSurface surface)
            where T : class
            => surface.Devices.Where(x => x is T).Cast<T>();

        /// <summary>
        /// Gets all devices of the specified <see cref="RGBDeviceType"/>.
        /// </summary>
        /// <param name="deviceType">The <see cref="RGBDeviceType"/> of the devices to get.</param>
        /// <returns>A collection of devices matching the specified <see cref="RGBDeviceType"/>.</returns>
        public static IEnumerable<IRGBDevice> GetDevices(this RGBSurface surface, RGBDeviceType deviceType)
            => surface.Devices.Where(d => deviceType.HasFlag(d.DeviceInfo.DeviceType));

        /// <summary>
        /// Automatically aligns all devices to prevent overlaps.
        /// </summary>
        public static void AlignDevices(this RGBSurface surface)
        {
            float posX = 0;
            foreach (IRGBDevice device in surface.Devices)
            {
                device.Location += new Point(posX, 0);
                posX += device.ActualSize.Width + 1;
            }
        }

        #endregion
    }
}