// -----------------------------------------
// SoundScribe (TM) and related software.
// 
// Copyright (C) 2007-2011 Vannatech
// http://www.vannatech.com
// All rights reserved.
// 
// This source code is subject to the MIT License.
// http://www.opensource.org/licenses/mit-license.php
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
// -----------------------------------------

using System;
using System.Collections.Generic;
using System.Linq;
using System.Runtime.InteropServices;
using System.Text;
using Microsoft.VisualStudio.TestTools.UnitTesting;
using Vannatech.CoreAudio.Constants;
using Vannatech.CoreAudio.Enumerations;
using Vannatech.CoreAudio.Externals;
using Vannatech.CoreAudio.Interfaces;

namespace CoreAudioTests.Common
{
	/// <summary>
	/// Base class for tests that utilize MMDevice Activation or AudioClient Services.
	/// </summary>
	/// <typeparam name="T">The interface type.</typeparam>
	public abstract class TestClass<T>
	{
		/// <summary>
		/// The COM IID.
		/// </summary>
		protected virtual string ComIID
		{
			get
			{
				var interfaceName = typeof(T).Name;
				var fieldInfo = typeof(ComIIDs).GetField(interfaceName + "IID");

				if (fieldInfo == null)
					throw new ArgumentException("Could not find the COM IID for the specified ");

				return fieldInfo.GetValue(null) as string;
			}
		}

		/// <summary>
		/// Gets the test manager used to run tests.
		/// </summary>
		protected TestManager<T> Manager
		{
			get;
			private set;
		}

        /// <summary>
        /// Runs tests via a custom test manager.
        /// </summary>
        /// <param name="testManager">The test manager.</param>
        /// <param name="onTestReady">The test method to use.</param>
        protected void ExecuteCustomTest(TestManager<T> testManager, TestReadyDelegate<T> onTestReady)
        {
            Manager = testManager;
            Manager.OnTestReady = onTestReady;
            Manager.Run();
        }

		/// <summary>
		/// Runs each test, creating the specified interface from the IMMDevice.Activate method.
		/// </summary>
		/// <param name="onTestReady">The test method to use.</param>
		protected virtual void ExecuteDeviceActivationTest(TestReadyDelegate<T> onTestReady)
		{
			Manager = DeviceActivationTestManager<T>.Create(ComIID);
			Manager.OnTestReady = onTestReady;
			Manager.Run();
		}

        /// <summary>
        /// Runs each test, creating the specified interface from the IPart.Activate method.
        /// </summary>
        /// <param name="onTestReady">The test method to use.</param>
        protected virtual void ExecutePartActivationTest(TestReadyDelegate<T> onTestReady)
        {
            Manager = PartActivationTestManager<T>.Create(ComIID);
            Manager.OnTestReady = onTestReady;
            Manager.Run();
        }

		/// <summary>
		/// Runs each test, creating the specified interface from the IAudioClient.GetService method.
		/// Tests are run in both shared and exclusive mode.
		/// </summary>
		/// <param name="onTestReady">The test method to use.</param>
		protected virtual void ExecuteServiceTest(TestReadyDelegate<T> onTestReady)
		{
			Manager = ServiceTestManager<T>.Create(ComIID, false);
			Manager.OnTestReady = onTestReady;
			Manager.Run();

			Manager = ServiceTestManager<T>.Create(ComIID, true);
			Manager.OnTestReady = onTestReady;
			Manager.Run();
		}

		/// <summary>
		/// Runs each test, creating the specified interface from the IAudioClient.GetService method.
		/// Tests are run only in the specified share mode.
		/// </summary>
		/// <param name="shareMode">The audio client share mode.</param>
		/// <param name="onTestReady">The test method to use.</param>
		protected virtual void ExecuteServiceTest(AUDCLNT_SHAREMODE shareMode, TestReadyDelegate<T> onTestReady)
		{
			var exclusiveMode = (shareMode == AUDCLNT_SHAREMODE.AUDCLNT_SHAREMODE_EXCLUSIVE);

			Manager = ServiceTestManager<T>.Create(ComIID, exclusiveMode);
			Manager.OnTestReady = onTestReady;
			Manager.Run();
		}

		/// <summary>
		/// Runs each test, creating the specified interface from the IAudioClient.GetService method.
		/// Tests are run in both shared and exclusive mode, with the audio client in the running (started) state.
		/// </summary>
		/// <param name="onTestReady">The test method to use.</param>
		protected virtual void ExecuteRunningServiceTest(TestReadyDelegate<T> onTestReady)
		{
			var serviceTestManager = ServiceTestManager<T>.Create(ComIID, false);
			serviceTestManager.AutoStartClient = true;

			Manager = serviceTestManager;
			Manager.OnTestReady = onTestReady;
			Manager.Run();

			serviceTestManager = ServiceTestManager<T>.Create(ComIID, true);
			serviceTestManager.AutoStartClient = true;

			Manager = serviceTestManager;
			Manager.OnTestReady = onTestReady;
			Manager.Run();
		}

		/// <summary>
		/// Runs each test, creating the specified interface from the IAudioClient.GetService method.
		/// Tests are run only in the specified share mode, with the audio client in the running (started) state.
		/// </summary>
		/// <param name="shareMode">The audio client share mode.</param>
		/// <param name="onTestReady">The test method to use.</param>
		protected virtual void ExecuteRunningServiceTest(AUDCLNT_SHAREMODE shareMode, TestReadyDelegate<T> onTestReady)
		{
			var exclusiveMode = (shareMode == AUDCLNT_SHAREMODE.AUDCLNT_SHAREMODE_EXCLUSIVE);
			var serviceTestManager = ServiceTestManager<T>.Create(ComIID, exclusiveMode);
			serviceTestManager.AutoStartClient = true;

			Manager = serviceTestManager;
			Manager.OnTestReady = onTestReady;
			Manager.Run();
		}
	}
}