/*

* Copyright (c) 2004-2009 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of the License "Eclipse Public License v1.0"

* which accompanies this distribution, and is available

* at the URL "http://www.eclipse.org/legal/epl-v10.html".

*

* Initial Contributors:

* Nokia Corporation - initial contribution.

*

* Contributors:

*

* Description: 

*

*/

#include <apgcli.h>

#include "daemoninstaller.h"

#include "swispubsubdefs.h"

#include "log.h"

const static TInt KAppListRetryWaitTime = 5000000; // 5 secs

_LIT(KMCSisInstaller,"Daemon-Installer"); // Minor-Component name

namespace Swi

	{

	// Two phased construction

	CSisInstaller* CSisInstaller::NewL(MDaemonInstallBehaviour* aDaemonBehaviour)

		{

		CSisInstaller* self = new (ELeave) CSisInstaller(aDaemonBehaviour);

		CleanupStack::PushL(self);

		self->ConstructL();

		CleanupStack::Pop(self);

		return self;

		}

	// Install Request constructor

	CSisInstaller::CSisInstaller(MDaemonInstallBehaviour* aDaemonBehaviour) : CActive(CActive::EPriorityStandard),

		  iDaemonBehaviour(aDaemonBehaviour),

		  iState(MDaemonInstallBehaviour::EStateVerifyAppCacheList),

		  iFileIndex(0),

		  iTimeStep(KAppListRetryWaitTime)		  

		{

		CActiveScheduler::Add(this);

		}

	// Install Request destructor

	CSisInstaller::~CSisInstaller()

		{

		Cancel();

		iTimer.Close();

		iProperty.Close();

		iFilesToInstall.ResetAndDestroy();

		iFilesToInstall.Close();

		}

	// 2nd phase construction

	void CSisInstaller::ConstructL()

		{

		User::LeaveIfError(iTimer.CreateLocal());

		User::LeaveIfError(iProperty.Attach(KUidSystemCategory,KUidSoftwareInstallKey));

		}

	// Set the location of all sis files and the list of them

	// also take ownership of the pointers to memory

	void CSisInstaller::AddFileToInstallL(const TDesC& aFileName)

		{

		DEBUG_PRINTF2(_L("SWI Daemon - Queueing presintalled SIS file '%S' for processing"),

			&aFileName);

		HBufC* fileName = aFileName.AllocLC();

		iFilesToInstall.AppendL(fileName);

		CleanupStack::Pop(fileName);

		}

	// Start the request to process the Sisx file

	void CSisInstaller::StartInstallingL()

		{

		if(iFilesToInstall.Count() > 0)

			{

			iState = MDaemonInstallBehaviour::EStateVerifyAppCacheList;

			ReRequestL();

			}

		}

	// Requesting an asyncronous timer/subscrive event

	void CSisInstaller::ReRequestL()

		{

		switch (iState)

			{

		// Verify the app cache list at time intervals

		case MDaemonInstallBehaviour::EStateVerifyAppCacheList:

			iTimer.Cancel();

			iTimer.After(iStatus,iTimeStep);

			SetActive();

			break;

		// Verify software installer property 

		case MDaemonInstallBehaviour::EStateVerifySwisProperty:

			CompleteSelf();

			break;

		case MDaemonInstallBehaviour::EStateVerifySwisIdle:

			iProperty.Subscribe(iStatus);

			SetActive();

			break;

		case MDaemonInstallBehaviour::EStateInstall:

			CompleteSelf();

			break;

		default:

			// SisInstaller in an incorrect state

			User::Panic(KMCSisInstaller,KErrNotSupported);

			break;			

			}

		}

	// Complete the request manually

	void CSisInstaller::CompleteSelf()

		{

		TRequestStatus* status = &iStatus;

		User::RequestComplete(status,KErrNone);

		SetActive();

		}

	// Cancel the active request

	void CSisInstaller::DoCancel()

		{

		iProperty.Cancel();

		iTimer.Cancel();

		}

	void CSisInstaller::Reset()

		{

		Cancel();

		iFileIndex = 0;

		iFilesToInstall.ResetAndDestroy();

		}

	// When the software installer has changed state

	// attemp to install a sisx file

	void CSisInstaller::RunL()

		{

		if (iStatus.Int() != KErrNone)

			{

			User::Leave(iStatus.Int()); // Invoke RunError

			}

		switch (iState)

			{

		// Check the cached list of applications

		case MDaemonInstallBehaviour::EStateVerifyAppCacheList:

			iState = iDaemonBehaviour->VerifyAppCacheListL();

			ReRequestL();

			break;

		case MDaemonInstallBehaviour::EStateVerifySwisProperty:

			iState = iDaemonBehaviour->VerifySwisPropertyL();

			ReRequestL();

			break;

		// Check the software installer is not busy

		case MDaemonInstallBehaviour::EStateVerifySwisIdle:

			iState = iDaemonBehaviour->VerifySwisIdleL();

			ReRequestL();

			break;

		// Install a file

		case MDaemonInstallBehaviour::EStateInstall:

			{

			iSisFile.Copy(*iFilesToInstall[iFileIndex]);

			iDaemonBehaviour->DoInstallRequestL(iSisFile);

			if (++iFileIndex < iFilesToInstall.Count())

				{

				iState = MDaemonInstallBehaviour::EStateVerifySwisProperty;

				CompleteSelf();

				}

			else

				{

				// All done

				iDaemonBehaviour->DoNotifyMediaProcessingComplete();

				}

			break;

			}

		// Active object in unknown state

		default:

			User::Panic(KMCSisInstaller,KErrNotSupported);

			break;

			}

		}

	// If RunL leaves then ignore errors

	TInt CSisInstaller::RunError(TInt aError)

		{

		DEBUG_PRINTF3(_L8("SWI Daemon - Daemon failed in state %d with code %d"),

			iState, aError);

		Reset();

		TInt err(KErrNone);

		if (aError == KErrCancel)

			{

			iState = MDaemonInstallBehaviour::EStateVerifyAppCacheList;

			}

		return err;

		}		

	}