/*
* Copyright (c) 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: 
*
*/
/**
 * @file testscripts.h Defines classes for reading a configuration file
 *
 * @note Configuration File Format:
 * 
 * [Defaults]
 * defaults= another_config_file.txt
 *
 * [SectionName]
 * variable= value
 * variable2= value2
 * variable= value3
 *
 * [SectionName2]
 * variable= value
 *
 * endscript
 *
 * 
 * @note Explanation:
 *
 * A configuration file is made up of a number of "sections", each of which can contain a number of "items" (name, value combination).
 * 
 * "Sections" must have a name and be surrounded by square backets, e.g.:
 *
 *      [SectionName]
 *
 *
 * Each "item" consists of consists of a name, followed by an equals sign, followed by blank space, followed by the value to assign to that variable.
 * 
 * The value can be of any length, contain whitespace and span multiple lines. The value ends when the next item or section is found. E.g:
 * 
 * Simple Item:
 *
 *      variable= value
 *
 * Two items on one line:
 *
 *      variable= value variable2= value2
 *
 * Multi-line item:
 *
 *      variable= This variable
 *      spans multiple
 *      lines
 *
 * 
 * @note Parsing stops at End-Of-File or if the tag "endscript" (without the quotes) appears in the file.
 *
 * @note A section may take some default values from another section or config file
 *
 * To specify default values for all sections, add a section at the start of the config file called [Defaults], e.g.:
 *
 *      [Defaults]
 *      sc= +447785016005
 *
 * To read default values from another config file, add an item with name "defaults" and value is the name of the file. E.g.:
 *
 *      defaults= another_config_file.txt

 */


#ifndef __TEST_CONFIG_FILE_PARSER_H__
#define __TEST_CONFIG_FILE_PARSER_H__

#include <e32std.h>
#include <e32base.h>

class CTestConfigSection;
class CTestConfigItem;
class RFs;
class TParse;
class RFile;

_LIT(KScriptPanic, "TEST-SCRIPT");
_LIT(KScriptPathSep,"\\");
_LIT8(KScriptSectionStart, "[");
_LIT8(KScriptSectionEnd, "]");
_LIT8(KScriptCRLF, "\r\n");
_LIT8(KScriptCRLF8, "\r\n");
_LIT8(KScriptLF, "\n");
_LIT8(KScriptCR, "\r");
_LIT8(KScriptItemEnd, "=");
_LIT8(KScriptItemEnd8, "=");
_LIT8(KScriptSpace8, " ");
_LIT8(KScriptDefaults, "Defaults");
_LIT8(KScriptDefault1, "Def");
_LIT8(KScriptDefault2, "Default");
_LIT8(KScriptCommentStart, "#");
const TInt KScriptLFChar = '\n';
const TInt KScriptCRChar = '\r';

class CTestConfig : public CBase
/**
 * @internalComponent
 * @deprecated
 */
	{
	public:
		IMPORT_C static CTestConfig* NewLC(RFs& aFs, const TDesC& aComponent, const TDesC& aScriptFile);
		IMPORT_C static CTestConfig* NewLC(RFs& aFs, const TDesC& aComponent);
		IMPORT_C ~CTestConfig();

		IMPORT_C const TDesC8& ItemValue(const TDesC8& aSection, const TDesC8& aItem, const TDesC8& aDefault) const;
		IMPORT_C TInt ItemValue(const TDesC8& aSection, const TDesC8& aItem, const TInt aDefault) const;
		
		IMPORT_C void ReadScriptL(const TDesC& aScript);

		inline const RPointerArray<CTestConfigSection>& Sections() const;
		inline RPointerArray<CTestConfigSection>& Sections();

		IMPORT_C const CTestConfigSection* Section(const TDesC8& aSectionName) const; //return NULL if section not found
		IMPORT_C CTestConfigSection* Section(const TDesC8& aSectionName); //return NULL if section not found
		inline const CTestConfigSection& operator[](TInt aIndex) const {return *iSections[aIndex];}
		inline CTestConfigSection& operator[](TInt aIndex) {return *iSections[aIndex];}

		IMPORT_C static TInt CountElements(const TDesC8& aInput, TChar aDelimiter);
		IMPORT_C static TInt GetElement(const TDesC8& aInput, TChar aDelimiter, TInt aIndex, TInt& aOutput);
		IMPORT_C static TInt GetElement(const TDesC8& aInput, TChar aDelimiter, TInt aIndex, TPtrC8& aOutput, TBool aTrimOutput = ETrue);
		IMPORT_C static TPtrC8 Trim(const TDesC8& aInput);
		IMPORT_C static TPtrC8 TrimLeft(const TDesC8& aInput);
		IMPORT_C static TPtrC8 TrimRight(const TDesC8& aInput);

		IMPORT_C static HBufC8* ReplaceLC(const TDesC8& aOld, const TDesC8& aNew, const TDesC8& aOldString);
		IMPORT_C static TInt ResolveFile(RFs& aFs, const TDesC& aComponent, const TDesC& aFileName, TParse& aParseOut);

		IMPORT_C void WriteFileL(const TDesC& aFileName);
		IMPORT_C TBool operator==(const CTestConfig& aFile) const;

		IMPORT_C void AddSectionL(CTestConfigSection& aSection);

	protected:

		CTestConfig(RFs& aFs);
		void ConstructL(const TDesC& aComponent);

		TPtrC8 ParseValue(const TDesC8& aText, const TLex8& aInput, TInt aCurrentItemStart) const;
		void ParseAndSetItemValueL(const TDesC8& aText, const TLex8& aInput, TInt aCurrentItemStart, CTestConfigItem*& arCurrentItem);
		void CopyInDefaultsL(CTestConfigSection& aSection, const TDesC& aDefaultFile);

		HBufC8* ReadFileL(const TDesC& aFile) const;

		TBool IsDefaultSection(const TDesC8& aSectionName) const;
		static TInt GetNextElement(TLex8& aInput, TChar aDelimiter, TPtrC8& aOutput);
		TBool IsNewSection(const TDesC8& aSource, const TLex8& aInput) const;
		TBool IsNewItem(const TDesC8& aSource, const TLex8& aLex, TPtrC8& aItem, TInt& aStartOfValue) const;
		TBool IsNewComment(const TDesC8& aSource, const TLex8& aLex) const;
		TBool IsAtStartOfNewLine(const TDesC8& aSource, const TLex8& aLex, TBool aIgnoreSpaces) const;
		void SkipToNextLine(TLex8& aInput) const;


	protected:

		RFs& iFs;
		HBufC* iComponent;
		RPointerArray<CTestConfigSection> iSections;
	};

class CTestConfigSection : public CBase
/**
 * @internalComponent
 * @deprecated
 */
	{
	friend class CTestConfig;

	public:
		IMPORT_C static CTestConfigSection* NewLC(const TDesC8& aSectionName);
		IMPORT_C static CTestConfigSection* NewLC(const TDesC8& aSectionName, CTestConfigSection& aDefaults);
		IMPORT_C ~CTestConfigSection();
		
		inline const TDesC8& SectionName() const;

		IMPORT_C const CTestConfigItem* Item(const TDesC8& aItemTag) const; //return NULL if the item does not exist
		IMPORT_C CTestConfigItem* Item(const TDesC8& aItemTag); //return NULL if the item does not exist
		IMPORT_C const CTestConfigItem* Item(const TDesC8& aItemTag,TInt aIndex) const; //return NULL if the item does not exist
		IMPORT_C CTestConfigItem* Item(const TDesC8& aItemTag,TInt aIndex); //return NULL if the item does not exist

		IMPORT_C const TDesC8& ItemValue(const TDesC8& aItemTag, const TDesC8& aDefault) const;
		IMPORT_C TInt ItemValue(const TDesC8& aItemTag, TInt aDefault) const;

		IMPORT_C CTestConfigItem& AddItemL(const TDesC8& aItemTag, const TDesC8& aValue);
		IMPORT_C void DeleteItemsL(const TDesC8& aItem);

		inline const RPointerArray<CTestConfigItem>& Items() const {return iItems;}
		inline RPointerArray<CTestConfigItem>& Items() {return iItems;}

		IMPORT_C TInt ItemCount(const TDesC8& aItemTag) const;
		IMPORT_C void ItemsL(RPointerArray<CTestConfigItem>& aArray, const TDesC8& aItemTag);
		IMPORT_C void ItemsL(RPointerArray<const CTestConfigItem>& aArray, const TDesC8& aItemTag) const;

		inline const CTestConfigItem& operator[](TInt aIndex) const  {return *iItems[aIndex];}

		inline void SetDefaultsL(const CTestConfigSection& aDefaults);
		inline CTestConfigSection* Defaults() const {return iDefaults;}

		IMPORT_C CTestConfigSection* CopyLC() const;

		void WriteL(RFile& aFile) const;
		TBool operator==(const CTestConfigSection& aFile) const;

	private:
		void ConstructL(const TDesC8& aSectionName);
		CTestConfigSection();
		RPointerArray<CTestConfigItem> iItems;
		HBufC8* iSectionName;
		CTestConfigSection* iDefaults;
	};

class CTestConfigItem : public CBase
/**
 * @internalComponent
 * @deprecated
 */
	{
	friend class CTestConfigSection;
	friend class CTestConfig;

	public:
		IMPORT_C static CTestConfigItem* NewLC(CTestConfigSection& aParent, const TDesC8& aItem, const TDesC8& aValue);
		inline CTestConfigItem* CopyLC() const;

		IMPORT_C ~CTestConfigItem();
		inline const TDesC8& Item() const;
		inline const TDesC8& Value() const;

		void WriteL(RFile& aFile) const;
		TBool operator==(const CTestConfigItem& aItem) const {return Item() == aItem.Item() && Value() == aItem.Value();}

	public:

		CTestConfigSection& iParent;
		
	private:
		CTestConfigItem(CTestConfigSection& aParent);
		void ConstructL(const TDesC8& aItem, const TDesC8& aValue);
		HBufC8* iItem;
		HBufC8* iValue;
	};

#include "testconfigfileparser.inl"

#endif