/*
* Copyright (c) 2006 Nokia Corporation and/or its subsidiary(-ies). 
* All rights reserved.
* This component and the accompanying materials are made available
* under the terms of "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:  Configuration representation classes for Out of Memory Monitor.
*
*/



#include <e32hashtab.h>

#include "oomconfig.h"
#include "oomconstants.hrh"
#include "oomapplicationconfig.h"
#include "oomrunpluginconfig.h"
#include "oomcloseappconfig.h"
#include "oomtraces.h"

COomConfig* COomConfig::NewL()
    {
    FUNC_LOG;

    COomConfig* self = new (ELeave) COomConfig;
    CleanupStack::PushL(self);
    self->ConstructL();
    CleanupStack::Pop(self);
    return self;
    }


// Add the configuration for an application closure.
// This class takes ownership of this action.
void COomConfig::SetAppCloseConfigL(COomCloseAppConfig* aActionConfig)
    {
    FUNC_LOG;

    // Find the right application config (if there is one) for the app
    // The map actually contains pointers for values, so we get pointers to pointers here...
    COomApplicationConfig** applicationConfigPointer = iApplicationToConfigMapping.Find(aActionConfig->iId);
    
    // Used to de-reference the pointer-to-pointer, hopefully making the code more readable
    COomApplicationConfig* applicationConfig = NULL;
    
    // Create a new COomApplicationConfig if there isn't one for this app
    if (!applicationConfigPointer)
        {
        applicationConfig = COomApplicationConfig::NewL(aActionConfig->iId);
        iApplicationToConfigMapping.InsertL(aActionConfig->iId, applicationConfig);
        }
    else
        {
        applicationConfig = *applicationConfigPointer;
        }
    
    // Append the action config to the appropriate list (the list for the relevant application)
    applicationConfig->SetAppCloseConfig(aActionConfig);    
    }

// Add the configuration for a plugin action.
// This class takes ownership of the configuration object.
void COomConfig::AddPluginConfigL(COomRunPluginConfig* aPluginConfig)
    {
    FUNC_LOG;

    // Check if the plugin has already been added, if so then this is an error in configuration (something is trying to add the same plugin twice)
    COomRunPluginConfig** runPluginConfig = iPluginToConfigMapping.Find(aPluginConfig->Id());
    if (runPluginConfig)
        {
        OomMonitorPanic(KPluginConfigAddedTwice);
        }
    
    iPluginToConfigMapping.InsertL(aPluginConfig->Id(), aPluginConfig);
    
    }

// Add a rule
// This class takes ownership of the given rule
// This rule applies to the specified application (and not a plugin associated with this application)
// The rule would usually apply to an "application close" event
void COomConfig::AddApplicationRuleL(TUint aTargetAppId, MOomRuleConfig* aRule)
    {
    FUNC_LOG;

    COomApplicationConfig** applicationConfig = iApplicationToConfigMapping.Find(aTargetAppId);
    
    if (applicationConfig)
        {
        (*applicationConfig)->AddRuleL(aRule);
        }
    else
        {
        OomMonitorPanic(KRuleConfiguredBeforeApplication);
        }
    }

// Add a rule for a plugin
// This class takes ownership of the given rule
// This rule is applied to the plugin with the specified ID
void COomConfig::AddPluginRuleL(TUint aPluginId, MOomRuleConfig* aRule)
    {
    FUNC_LOG;

    COomRunPluginConfig** runPluginConfig = iPluginToConfigMapping.Find(aPluginId);
    
    if (runPluginConfig)
        {
        (*runPluginConfig)->AddRuleL(aRule);
        }
    else
        {
        OomMonitorPanic(KRuleConfiguredBeforePlugin);
        }   
    }

// Add this application config - this class takes ownership of it
// Application config includes settings for a particular application, e.g. whether or not it can be closed
void COomConfig::AddApplicationConfigL(COomApplicationConfig* aApplicationConfig)
    {
    FUNC_LOG;

    // Check if the application has already been added, if so then this is an error in configuration (something is trying to add the same app twice)
    COomApplicationConfig** applicationConfig = iApplicationToConfigMapping.Find(aApplicationConfig->Id());
    if (applicationConfig)
        {
        OomMonitorPanic(KAppConfigAddedTwice);
        }
    
    iApplicationToConfigMapping.InsertL(aApplicationConfig->Id(), aApplicationConfig);
    }

// Get the list of configured actions for the given app id
// If no specific actions have been configured for this application then the default action is returned
COomApplicationConfig& COomConfig::GetApplicationConfig(TInt32 aAppId)
    {
    FUNC_LOG;

    COomApplicationConfig** applicationConfig = iApplicationToConfigMapping.Find(aAppId);
    
    if (!applicationConfig)
        applicationConfig = iApplicationToConfigMapping.Find(KOomDefaultAppId);
    
    // The default app configuration should always exist
    __ASSERT_ALWAYS(applicationConfig, OomMonitorPanic(KOomDefaultAppNotConfigured));
    
    return *(*applicationConfig);
    }

// Get the plugin configuration for the given plugin id
// If no specific actions have been configured for this plugin then the default plugin configuration is returned
COomRunPluginConfig& COomConfig::GetPluginConfig(TInt32 aPluginId)
    {
    FUNC_LOG;

    COomRunPluginConfig** runPluginConfig = iPluginToConfigMapping.Find(aPluginId);
    
    if (!runPluginConfig)
        runPluginConfig = iPluginToConfigMapping.Find(KOomDefaultPluginId);
    
    // The default app configuration should always exist
    __ASSERT_ALWAYS(runPluginConfig, OomMonitorPanic(KOomDefaultPluginNotConfigured));
    
    return *(*runPluginConfig);
    }

COomConfig::~COomConfig()
    {
    FUNC_LOG;

    // Iterate through the hash map deleting all of the items
    RHashMap<TInt32, COomApplicationConfig*>::TIter iterator(iApplicationToConfigMapping);
    while (iterator.NextValue())
        delete iterator.CurrentValue();
    
    // Iterate through the plugiun hash map deleting all of the items
    RHashMap<TInt32, COomRunPluginConfig*>::TIter pluginIterator(iPluginToConfigMapping);
    while (pluginIterator.NextValue())
        delete pluginIterator.CurrentValue();
    
    iApplicationToConfigMapping.Close();
    }

void COomConfig::ConstructL()
    {
    FUNC_LOG;
    }