// Copyright (c) 2006-2009 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:
// Comms Database public interface
// 
//

/**
 @file
 @deprecated since v9.1. Functionality is replaced with commsdat.
*/

#ifndef COMMDB_H
#define	COMMDB_H

#include <d32dbms.h>
#include <metadatabase.h>

using namespace CommsDat;

#include <dial.h>
#include <cdbcols.h>
#include <cdblen.h>

/**
Protection of settings: when the entire table is protected, write operations
fail with KErrWrite. However KErrAccessDenied should be returned to client
@internalComponent
*/
#define TRAPD_CONVERT(_r,_s)	TRAPD(_r,_s); if(ret == KErrWrite) ret = KErrAccessDenied;
/**
@internalComponent
*/
#define  TRAP_CONVERT(_r,_s)	TRAP(_r,_s);  if(ret == KErrWrite) ret = KErrAccessDenied;

class CCommsDbTableView;
class CCommsDbConnectionPrefTableView;
class CCommDbTableExtension;
class CCommsDatabaseImpl;

class CCommsDatabaseBase : public CBase
/** Base class for CCommsDatabase.

This class is never instantiated, but its member functions are used through
the derived class.

Responsible for Transactions, Notifications, Write protection, Hidden
records, Phone number resolution and Creating views. Stores the database, the
session, transaction and notifier information.

CCommsDatabaseBase is an abstract base class as the CreateDatabaseL() and
Open() methods are pure virtual.
@publishedAll
@released */
	{
public:
    // These classes added as friends for commdb shim
	friend class CCommsDbTableView;
	friend class CCommsDbConnectionPrefTableView;
	friend class CCommsDbProtectTableView;
	friend class CCommsDbProtectConnectPrefTableView;
    friend class CCommsDbTemplateRecord;
public:
	IMPORT_C virtual ~CCommsDatabaseBase();

	// Returns the version of the database server.
	IMPORT_C TVersion Version() const;
	// Begin a transaction. Call before `InsertRecord()` or `UpdateRecord()`.
	IMPORT_C TInt BeginTransaction();
	// End a transaction. Call after `InsertRecord()` or `UpdateRecord()`.
	IMPORT_C TInt CommitTransaction();
	// Cancel a transaction.
	IMPORT_C void RollbackTransaction();
	// True if BeginTransaction() has been called but not
	//	`CommitTransaction()` or `RollbackTransaction()`.
	IMPORT_C TBool InTransaction();
	// True if the database has been locked.
	IMPORT_C TBool IsDatabaseWriteLockedL();

	// Enable a notification event on any change to the database.
	IMPORT_C TInt RequestNotification(TRequestStatus& aStatus);
	// Cancels notifications.
	IMPORT_C void CancelRequestNotification();

	// Obtain a view of all records in a table.
	IMPORT_C CCommsDbTableView* OpenTableLC(const TDesC& aTableName);
	// Obtain a view of the records in a table that match the query.
	IMPORT_C CCommsDbTableView* OpenViewLC(const TDesC& aTableName, const TDesC& aSqlQuery);
	// Obtain a view of all the records in a table for which the field
	//	`aColumnToMatch` matches `aValueToMatch`.
	IMPORT_C CCommsDbTableView* OpenViewMatchingUintLC(const TDesC& aTableName, const TDesC& aColumnToMatch, TUint32 aValueToMatch);
	IMPORT_C CCommsDbTableView* OpenViewMatchingBoolLC(const TDesC& aTableName, const TDesC& aColumnToMatch, TBool aValueToMatch);
	IMPORT_C CCommsDbTableView* OpenViewMatchingTextLC(const TDesC& aTableName, const TDesC& aColumnToMatch, const TDesC8& aValueToMatch);
	IMPORT_C CCommsDbTableView* OpenViewMatchingTextLC(const TDesC& aTableName, const TDesC& aColumnToMatch, const TDesC16& aValueToMatch);

	// Make hidden records visible
	IMPORT_C void ShowHiddenRecords();

	//  Set `aDialString` to be the appropriate string based on the directory
	//	number, where the dial is being performed and the chargecard to use.
	//	`ResolvePhoneNumberL()` opens a comms database to perform the
	//	resolution
	IMPORT_C static void ResolvePhoneNumberL(TDesC& aNumber, TDes& aDialString, TParseMode aDialParseMode, TUint32 aLocationId, TUint32 aChargecardId);
	// Set `aDialString` to be the appropriate string based on the directory
	//	number, where the dial is being performed and the chargecard to use.
	IMPORT_C void ResolvePhoneNumberFromDatabaseL(TDesC& aNumber, TDes& aDialString, TParseMode aDialParseMode, TUint32 aLocationId, TUint32 aChargecardId);
	IMPORT_C static TInt InitializeFilestore();

	// Check access to database fields
	IMPORT_C TInt CheckReadCapability( const TDesC& aField, const RMessagePtr2* aMessage );
	IMPORT_C TInt CheckWriteCapability( const TDesC& aField, const RMessagePtr2* aMessage );

protected:
	// internal
	// Please note that as of v9.0 TCommDbSystemAgentNotification now actually contains
	// the notification information for the Publish and Subscribe notifications, not
	// for System Agent notifications.
	class TCommDbSystemAgentNotification
	/**
	@publishedAll
	@deprecated
	*/
		{
	public:
		TCommDbSystemAgentNotification();
		void Set(TUid aUid, TInt aVal);
	public:
		TUid iUid;
		TInt iValue;
		};

	class TCommDbPublishSubscribeNotification
	/**
	@internalComponent
	@released
	*/
		{
	public:
		TCommDbPublishSubscribeNotification();
		void Set(TUid aUid, TInt aVal);
	public:
		TUid iUid;
		TInt iValue;
		};

protected:
	// internal
	IMPORT_C CCommsDatabaseBase();
	// internal
	virtual void CreateDatabaseL() =0;
	//
	void DoClose();
	CCommsDbTableView* DoOpenViewMatchingUintL(const TDesC& aTableName, const TDesC& aColumnToMatch, TUint32 aValueToMatch, TBool aIncludeHiddenRecords);
	CCommsDbTableView* DoOpenViewMatchingTextL(const TDesC& aTableName, const TDesC& aColumnToMatch, const TDesC8& aValueToMatch, TBool aIncludeHiddenRecords);
	CCommsDbTableView* DoOpenViewMatchingTextL(const TDesC& aTableName, const TDesC& aColumnToMatch, const TDesC16& aValueToMatch, TBool aIncludeHiddenRecords);
	CCommsDbTableView* DoOpenTableViewL(const TDesC& aTableName, const TDesC& aSqlQuery);
	CCommsDbTableView* DoOpenIAPTableViewL(const TDesC& aTableName,const TDesC& aSqlQuery);
	//
	void PopulateDialLocationL(TUint32 aId, TDialLocation& aLocation);
	void PopulateChargeCardL(TUint32 aId, TChargeCard& aChargeCard);
	void BeginInternalTransactionL();
	TInt CommitInternalTransaction();
	void RollbackInternalTransaction();
	void DatabaseUpdateHasOccurred();
	void NotifyChangeL(const TDesC& aSetting, TUint32 aVal);
	TInt NotifyAllChanges();

	TUint32 GetNewNumber(TUid aUid);
	TInt CheckDBCapability( RDbs::TPolicyType aType, const TDesC& aField, const RMessagePtr2* aMessage );
	void ConvertToUid(const TDesC& aSetting, TUint32 aVal, TCommDbPublishSubscribeNotification& aNotification);

	inline RDbNamedDatabase* Database();
protected:
	//internal
	CCommsDatabaseImpl* iImpl;
	RDbNamedDatabase iDatabase;
	RDbNotifier iNotifier;
	// store container data for deletion after session is finished
	//RPointerArray<CMDBElement> iTransactionCache;

	TInt iNotifierOpenError;
	TBool iShowHiddenRecords;
	TBool iImplNotCreated;
	TBool iInInternalTransaction;

	RArray<TCommDbPublishSubscribeNotification> iNotifications;
private:
	// Check access to database fields
	TInt DoCheckReadCapabilityL( const TDesC& aField, const RMessagePtr2* aMessage );
	TInt DoCheckWriteCapabilityL( const TDesC& aField, const RMessagePtr2* aMessage );

	TBool ConvertTableName(const TDesC& aTableName, TDes& aResult);
	};

class CCommsDatabase : public CCommsDatabaseBase
/**
Accesses the communications database through the DBMS.

An object of this type must be constructed and opened by a client before any
of the tables in the database can be accessed, e.g. to create views and access
template records.

Implements the pure virtual functions CreateDatabaseL() and DoOpen().
Responsible for Global settings and Connection Preferences. Has utility
functions for accessing Global and Agent tables. No additional state (to
CCommsDatabaseBase) is stored.
@publishedAll
@released */
	{
public:
	IMPORT_C static CCommsDatabase* NewL();
	IMPORT_C static CCommsDatabase* NewL(TBool aUseDefaultDb);
	IMPORT_C static CCommsDatabase* NewL(TCommDbOpeningMethod &aOpeningMethod);
	IMPORT_C virtual ~CCommsDatabase();
	IMPORT_C void GetGlobalSettingL(const TDesC& aSetting, TUint32& aValue);
	IMPORT_C void GetGlobalSettingL(const TDesC& aSetting, TDes& aValue);
	IMPORT_C void SetGlobalSettingL(const TDesC& aSetting, TUint32 aValue);
	IMPORT_C void SetGlobalSettingL(const TDesC& aSetting, const TDesC& aValue);
	IMPORT_C void ClearGlobalSettingL(const TDesC& aSetting);
	IMPORT_C void GetDefaultTsyL(TDes& aValue);

	// Deprecated. Past use: Gets settings (Modem, Chargecard, and Service) for the dial out IAP.
	IMPORT_C void GetCurrentDialOutSettingL(const TDesC& aSetting, TUint32& aValue);
	// Deprecated. Past use: Retrieve settings for the dial in IAP.
	IMPORT_C void GetCurrentDialInSettingL(const TDesC& aSetting, TUint32& aValue);
	// Open a connection preference view.
	IMPORT_C CCommsDbConnectionPrefTableView* OpenConnectionPrefTableLC();
	// Open a connection preference view containing connections of the
	//	specified direction.
	IMPORT_C CCommsDbConnectionPrefTableView* OpenConnectionPrefTableLC(TCommDbConnectionDirection aDirection);
	// Open a connection preference view containing connections of the
	// specified direction excluding connections of rank zero.
	IMPORT_C CCommsDbConnectionPrefTableView* OpenConnectionPrefTableInRankOrderLC(TCommDbConnectionDirection aDirection);
	// Open a connection preference view containing connections of the
	//	specified direction and rank.
	IMPORT_C CCommsDbConnectionPrefTableView* OpenConnectionPrefTableViewOnRankLC(TCommDbConnectionDirection aDirection, TUint32 aRank);

	//DEPRECATED : Agent table has been removed. These functions have been
	//				stubbed to return KErrNotSupported or leave with the same error.
	// Access agent settings. `aService` is one of: (`DIAL_OUT_ISP`,
	//	`DIAL_IN_ISP`, `OUTGOING_WCDMA'). */
	IMPORT_C void SetAgentL(const TDesC& aService, const TDesC& aAgent);

	IMPORT_C void SetAgentExtL(const TDesC& aService, const TDesC& aAgentExt);
	IMPORT_C void GetAgentL(const TDesC& aService, TDes& aAgent);
	IMPORT_C void GetAgentExtL(const TDesC& aService, TDes& aAgentExt);
	IMPORT_C void ClearAgentAndExtL(const TDesC& aService);
	IMPORT_C void SetAgentClientTimeoutL(const TDesC& aService, TInt aClientTimeout);
	IMPORT_C void SetAgentRouteTimeoutL(const TDesC& aService, TInt aRouteTimeout);
	IMPORT_C TInt GetAgentClientTimeoutL(const TDesC& aService);
	IMPORT_C TInt GetAgentRouteTimeoutL(const TDesC& aService);

	/** Open a view on the IAP table containing records that match the
		bearers and direction specified. `aBearerSet` is a bit mask of type
		`TCommDbBearer`. */
	IMPORT_C CCommsDbTableView* OpenIAPTableViewMatchingBearerSetLC(TUint32 aBearerSet, TCommDbConnectionDirection aDirection);

	/** Open a viewon the IAP table containing records which match the specified network */
	IMPORT_C CCommsDbTableView* OpenIAPTableViewMatchingNetworkLC(TUint32 aNetwork);

	// Open a view on the proxy table containing records that match the
	//	service id and type specified.
	IMPORT_C CCommsDbTableView* OpenViewOnProxyRecordLC(TUint32 aServiceId, const TDesC& aServiceType);

	// Functionality re-implemented to facilitate BC with 6.1
	IMPORT_C static CCommsDatabase* NewL(TCommDbDatabaseType aDbType);
	// Creates a `CCommsDatabase` as with `NewL()`. The method of opening:
	//	(Created, CopiedDefault or Opened) is returned in `aOpeningMethod`.
	IMPORT_C static CCommsDatabase* NewL(TCommDbDatabaseType aDbType, TCommDbOpeningMethod &aOpeningMethod);

private:
	enum TGlobalSettingType
		{
		ENotASetting,
		EGlobalSetting,
		ECompatibilitySetting
		};
protected:
	CCommsDatabase();
	void DoOpenL(TCommDbOpeningMethod& aOpeningMethod,TBool aUseDefaultDb);
private:
	/** CCommsDatabaseBase pure virtuals */

	virtual void CreateDatabaseL();
	CCommsDbTableView* OpenGlobalSettingsTableLC(const TDesC& aSetting, TBool& aExists);
	TGlobalSettingType GlobalSettingTypeL(const TDesC& aSetting) const;

	};

class CCommsDbTemplateRecord;

class CCommsDbTableView : public CBase
/**

The view on a specific table in the database.

Includes the necessary behaviour for navigating through the records in
the view and reading and writing to columns within a record.

Uses a CCommsDatabase and has an RDbView to read from and write to database. Created via
CCommsDatabase::OpenTableLC() (which opens a view of all the records in the table) or one
of the OpenViewLC...() functions (which open a specific view of the table):

CCommsDatabase::OpenTableLC()

CCommsDatabase::OpenViewMatchingUintLC()

CCommsDatabase::OpenViewMatchingBoolLC()

CCommsDatabase::OpenViewMatchingTextLC()

CCommsDatabase::OpenViewLC()

Note that the above five functions have been withdrawn in CCommsDatabase and
are now implemented in CCommsDatabaseBase.
@publishedAll
@released */
	{
public:
	friend class CCommsDatabaseBase;
	friend class CCommsDbTemplateRecord;
public:
	// Low level view creation. Use if `CCommsDatabase::OpenTableLC()` or
	//`CCommsDatabase::OpenViewLC...()` are not sufficient.
	static CCommsDbTableView* NewL(CCommsDatabaseBase& aDb, const TDesC& aTableName, const TDbQuery& aQuery, TBool aUseTemplate = ETrue);
	static CCommsDbTableView* NewLC(const TDesC& aTableName, CCommsDatabaseBase& aDb);
	// additional constructors, commdb shim specific
	static CCommsDbTableView* NewLC(CCommsDatabaseBase& aDb, const TDesC& aTableName, TBool aUseTamplate = ETrue); 	// ETrue if template is instantiating
	static CCommsDbTableView* NewL(CCommsDatabaseBase& aDb, const TDesC& aTableName, const TDesC& aColumnToMatch, const TDesC8& aValueToMatch);
	static CCommsDbTableView* NewL(CCommsDatabaseBase& aDb, const TDesC& aTableName, const TDesC& aColumnToMatch, const TDesC16& aValueToMatch);
	static CCommsDbTableView* NewL(CCommsDatabaseBase& aDb, const TDesC& aTableName, const TDesC& aColumnToMatch, TUint32 aValueToMatch);
	static CCommsDbTableView* NewLC(CCommsDatabaseBase& aDb, const TDesC& aTableName, const TDesC& aColumnToMatch, TBool aValueToMatch);
	// this two are for IAP table only so table name is not needed
	static CCommsDbTableView* NewLC(CCommsDatabaseBase& aDb, TUint32 aBearerSet,	TCommDbConnectionDirection aDirection);
	static CCommsDbTableView* NewLC(CCommsDatabaseBase& aDb, TUint32 aNetworkId);
	//  this one is for Proxie table only
	static CCommsDbTableView* NewLC(CCommsDatabaseBase& aDb, TUint32 aServiceId, const TDesC& aServiceType);

	CCommsDbTableView(CCommsDatabaseBase& aDb, const TDesC& aTableName);

	IMPORT_C virtual ~CCommsDbTableView();

	// Add a new record to this table. The record number is returned.
	//	`PutRecordChanges()` is called to complete the transaction
	IMPORT_C TInt InsertRecord(TUint32& aId);
	/** Add a new record to this table. Filling all empty fields with values copied
		from record currently pointed at. The record number is returned.
		`PutRecordChanges()` is called to complete the transaction */
	IMPORT_C TInt InsertCopyRecord(TUint32& aId);
	/** Modify the current record of this view. `PutRecordChanges()` is called
		to complete the transaction */
	IMPORT_C TInt UpdateRecord();
	// Remove the current record from the table.
	IMPORT_C TInt DeleteRecord();
	// Store an inserted or updated record back to the database.
	IMPORT_C TInt PutRecordChanges(TBool aHidden = EFalse, TBool aReadOnly = EFalse);
	// Cancel pending changes since an insert or update.
	IMPORT_C void CancelRecordChanges();
	//
	// Navigate throught the records in the view
	//
	IMPORT_C TInt GotoFirstRecord();
	IMPORT_C TInt GotoNextRecord();
	IMPORT_C TInt GotoPreviousRecord();
	//
	// Access data from the current record
	//
	IMPORT_C void ReadTextL(const TDesC& aColumn, TDes8& aValue);
	IMPORT_C void ReadTextL(const TDesC& aColumn, TDes16& aValue);
	IMPORT_C HBufC* ReadLongTextLC(const TDesC& aColumn);
	IMPORT_C void ReadUintL(const TDesC& aColumn, TUint32& aValue);
	IMPORT_C void ReadBoolL(const TDesC& aColumn, TBool& aValue);
	// Determine the type and attributes of a column. The type is one of:
	//	(EDbColBit, EDbColUint32, EDbColText8, EDbColText16, EDbColLongText16).
	//	The attribute is a bit mask of: (ENotNull and EAutoIncrement).
	IMPORT_C void ReadTypeAttribL(const TDesC& aColumn, TDbColType& aColType, TUint32& aAttrib);
	// Null columns return 0, integers and bools 1, strings return their length in characters.
	IMPORT_C void ReadColumnLengthL(const TDesC& aColumn, TInt& aLength);

	//
	// Modify an inserted or modified record. Must call `PutRecordChanges()`
	//	to store the changes.
	//
	IMPORT_C void WriteTextL(const TDesC& aColumn, const TDesC8& aValue);
	IMPORT_C void WriteTextL(const TDesC& aColumn, const TDesC16& aValue);
	IMPORT_C void WriteLongTextL(const TDesC& aColumn, const TDesC& aValue);
	IMPORT_C void WriteUintL(const TDesC& aColumn, const TUint32& aValue);
	IMPORT_C void WriteBoolL(const TDesC& aColumn, const TBool& aValue);
	IMPORT_C void SetNullL(const TDesC& aColumn);

	IMPORT_C void ReadColumnMaxLengthL(const TDesC& aColumn, TInt& aLength);
	inline CCommsDatabaseBase* Database() const { return &iDb; }

	void  OpenL(const TDbQuery& aQuery);

	inline void GetTableName(TDes& aTableName) const;
protected:
	TDbColNo ColNumL(const TDesC& aColumn) const;
	void Close();
	void ConstructL(const TDesC& aTableName, TBool aShowHidden, TBool aUseTemplate);
	void ConstructL(const TDbQuery& aQuery, TBool aUseTemplate);
	RDbRowSet::TAccess GetL();

	// All other ConstructructL methods are added for commdb shimm
	void ConstructL(const TDesC& aTableName, const TDesC& aColumnToMatch, const TDesC8& aValueToMatch);
	void ConstructL(const TDesC& aTableName, const TDesC& aColumnToMatch, const TDesC16& aValueToMatch);
	void ConstructL(const TDesC& aTableName, const TDesC& aColumnToMatch, TUint32 aValueToMatch);
	void ConstructL(const TDesC& aTableName, const TDesC& aColumnToMatch, TBool aValueToMatch);
	void ConstructL(TUint32 aBearerSet,	TCommDbConnectionDirection aDirection);
	void ConstructL(TUint32 aNetworkId);
	void ConstructL(TUint32 aServiceId, const TDesC& aServiceType);
	// used for template creation only
	void ConstructL(const TDesC& aTableName);
	
private:
	enum TTableState {
		EClosed,
		EOpenIdle,
		EInsert,
		EUpdate
		};
private:
	TBool TableWithTemplateRecord() const;
	TInt InsertTemplateRecord();
	TInt DoInsertRecord(TBool aType, TUint32& aId, TBool aIsTemplate);
	TInt DoPutRecordChanges(TBool aHidden = EFalse, TBool aReadOnly = EFalse, TBool aIsTemplateCall = EFalse);

private:
	TTableState iState;
	CCommsDbTemplateRecord* iTemplate;
	TBool iTsyNameChanged;
	TUint32 iInsertedRecordIndex;
	TUint32 iCurrentId;

protected:
	CCommsDatabaseBase& iDb;
	TBuf<KCommsDbSvrMaxColumnNameLength> iTableName;
	RDbView iTableView;
	CCommDbTableExtension* iTableExt;
	};





/**
Convert a legacy field name to a CommsDat element Id

@internalTechnology
@param aFieldName A legacy commdb field name in the format "tableName\fieldName"
@return A Commsdat element Id
*/
class CommDbShimUtil
	{
public:
	IMPORT_C static TMDBElementId GetElementIdFromFieldNameL(const TDesC& aFieldName);
	};

// SYMBIAN_NON_SEAMLESS_NETWORK_BEARER_MOBILITY


#include <commdb.inl>

#endif
// COMMDB_H