// Kyoo - A portable and vast media library solution.
// Copyright (c) Kyoo.
//
// See AUTHORS.md and LICENSE file in the project root for full license information.
//
// Kyoo is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// any later version.
//
// Kyoo is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Kyoo. If not, see <https://www.gnu.org/licenses/>.

using System;
using System.Reflection;

namespace Kyoo.Utils
{
	/// <summary>
	/// Static class containing MethodOf calls.
	/// </summary>
	public static class MethodOfUtils
	{
		/// <summary>
		/// Get a MethodInfo from a direct method.
		/// </summary>
		/// <param name="action">The method (without any arguments or return value.</param>
		/// <returns>The <see cref="MethodInfo"/> of the given method</returns>
		public static MethodInfo MethodOf(Action action)
		{
			return action.Method;
		}

		/// <summary>
		/// Get a MethodInfo from a direct method.
		/// </summary>
		/// <param name="action">The method (without any arguments or return value.</param>
		/// <typeparam name="T">The first parameter of the action.</typeparam>
		/// <returns>The <see cref="MethodInfo"/> of the given method</returns>
		public static MethodInfo MethodOf<T>(Action<T> action)
		{
			return action.Method;
		}

		/// <summary>
		/// Get a MethodInfo from a direct method.
		/// </summary>
		/// <param name="action">The method (without any arguments or return value.</param>
		/// <typeparam name="T">The first parameter of the action.</typeparam>
		/// <typeparam name="T2">The second parameter of the action.</typeparam>
		/// <returns>The <see cref="MethodInfo"/> of the given method</returns>
		public static MethodInfo MethodOf<T, T2>(Action<T, T2> action)
		{
			return action.Method;
		}

		/// <summary>
		/// Get a MethodInfo from a direct method.
		/// </summary>
		/// <param name="action">The method (without any arguments or return value.</param>
		/// <typeparam name="T">The first parameter of the action.</typeparam>
		/// <typeparam name="T2">The second parameter of the action.</typeparam>
		/// <typeparam name="T3">The third parameter of the action.</typeparam>
		/// <returns>The <see cref="MethodInfo"/> of the given method</returns>
		public static MethodInfo MethodOf<T, T2, T3>(Action<T, T2, T3> action)
		{
			return action.Method;
		}

		/// <summary>
		/// Get a MethodInfo from a direct method.
		/// </summary>
		/// <param name="action">The method (without any arguments or return value.</param>
		/// <typeparam name="T">The return type of function.</typeparam>
		/// <returns>The <see cref="MethodInfo"/> of the given method</returns>
		public static MethodInfo MethodOf<T>(Func<T> action)
		{
			return action.Method;
		}

		/// <summary>
		/// Get a MethodInfo from a direct method.
		/// </summary>
		/// <param name="action">The method (without any arguments or return value.</param>
		/// <typeparam name="T">The first parameter of the function.</typeparam>
		/// <typeparam name="T2">The return type of function.</typeparam>
		/// <returns>The <see cref="MethodInfo"/> of the given method</returns>
		public static MethodInfo MethodOf<T, T2>(Func<T, T2> action)
		{
			return action.Method;
		}

		/// <summary>
		/// Get a MethodInfo from a direct method.
		/// </summary>
		/// <param name="action">The method (without any arguments or return value.</param>
		/// <typeparam name="T">The first parameter of the function.</typeparam>
		/// <typeparam name="T2">The second parameter of the function.</typeparam>
		/// <typeparam name="T3">The return type of function.</typeparam>
		/// <returns>The <see cref="MethodInfo"/> of the given method</returns>
		public static MethodInfo MethodOf<T, T2, T3>(Func<T, T2, T3> action)
		{
			return action.Method;
		}

		/// <summary>
		/// Get a MethodInfo from a direct method.
		/// </summary>
		/// <param name="action">The method (without any arguments or return value.</param>
		/// <typeparam name="T">The first parameter of the function.</typeparam>
		/// <typeparam name="T2">The second parameter of the function.</typeparam>
		/// <typeparam name="T3">The third parameter of the function.</typeparam>
		/// <typeparam name="T4">The return type of function.</typeparam>
		/// <returns>The <see cref="MethodInfo"/> of the given method</returns>
		public static MethodInfo MethodOf<T, T2, T3, T4>(Func<T, T2, T3, T4> action)
		{
			return action.Method;
		}
	}
}