/*
 * Copyright (c) 2008 - 2010
 *   Jonathan Schleifer <js@webkeks.org>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE included in
 * the packaging of this file.
 */

#include <stdarg.h>

#import "OFObject.h"
#import "OFEnumerator.h"

@class OFDataArray;
@class OFString;

#ifdef OF_HAVE_BLOCKS
typedef void (^of_array_enumeration_block_t)(id obj, size_t idx, BOOL *stop);
#endif

/**
 * \brief A class for storing objects in an array.
 */
@interface OFArray: OFObject <OFCopying, OFMutableCopying, OFFastEnumeration>
{
	OFDataArray *array;
}

/**
 * \return A new autoreleased OFArray
 */
+ array;

/**
 * Creates a new OFArray with the specified object.
 *
 * \param obj An object
 * \return A new autoreleased OFArray
 */
+ arrayWithObject: (id)obj;

/**
 * Creates a new OFArray with the specified objects, terminated by nil.
 *
 * \param first The first object in the array
 * \return A new autoreleased OFArray
 */
+ arrayWithObjects: (id)first, ...;

/**
 * Creates a new OFArray with the objects from the specified C array.
 *
 * \param objs A C array of objects, terminated with nil
 * \return A new autoreleased OFArray
 */
+ arrayWithCArray: (id*)objs;

/**
 * Creates a new OFArray with the objects from the specified C array of the
 * specified length.
 *
 * \param objs A C array of objects
 * \param len The length of the C array
 * \return A new autoreleased OFArray
 */
+ arrayWithCArray: (id*)objs
	   length: (size_t)length;

/**
 * Initializes an OFArray with the specified object.
 *
 * \param obj An object
 * \return An initialized OFArray
 */
- initWithObject: (id)obj;

/**
 * Initializes an OFArray with the specified objects.
 *
 * \param first The first object
 * \return An initialized OFArray
 */
- initWithObjects: (id)first, ...;

/**
 * Initializes an OFArray with the specified object and a va_list.
 *
 * \param first The first object
 * \param args A va_list
 * \return An initialized OFArray
 */
- initWithObject: (id)first
	 argList: (va_list)args;

/**
 * Initializes an OFArray with the objects from the specified C array.
 *
 * \param objs A C array of objects, terminated with nil
 * \return An initialized OFArray
 */
- initWithCArray: (id*)objs;

/**
 * Initializes an OFArray with the objects from the specified C array of the
 * specified length.
 *
 * \param objs A C array of objects
 * \param len The length of the C array
 * \return An initialized OFArray
 */
- initWithCArray: (id*)objs
	  length: (size_t)len;

/**
 * \return The number of objects in the array
 */
- (size_t)count;

/**
 * \return The objects of the array as a C array
 */
- (id*)cArray;

/**
 * Returns a specific object of the array.
 *
 * The returned object is <i>not</i> retained and autoreleased for performance
 * reasons!
 *
 * \param index The number of the object to return
 * \return The specified object of the OFArray
 */
- (id)objectAtIndex: (size_t)index;

/**
 * Returns the index of the first object that is equivalent to the specified
 * object.
 *
 * \param obj The object whose index is returned
 * \return The index of the first object equivalent to the specified object
 */
- (size_t)indexOfObject: (id)obj;

/**
 * Returns the index of the first object that has the same address as the
 * specified object.
 *
 * \param obj The object whose index is returned
 * \return The index of the first object that has the same aaddress as
 *	   the specified object
 */
- (size_t)indexOfObjectIdenticalTo: (id)obj;

/**
 * Returns the first object of the array or nil.
 *
 * The returned object is <i>not</i> retained and autoreleased for performance
 * reasons!
 *
 * \return The first object of the array or nil
 */
- (id)firstObject;

/**
 * Returns the last object of the array or nil.
 *
 * The returned object is <i>not</i> retained and autoreleased for performance
 * reasons!
 *
 * \return The last object of the array or nil
 */
- (id)lastObject;

/**
 * Creates a string by joining all objects of the array.
 *
 * \param separator The string with which the objects should be joined
 * \return A string containing all objects joined by the separator
 */
- (OFString*)componentsJoinedByString: (OFString*)separator;

/**
 * \return An OFEnumerator to enumarate through the array's objects
 */
- (OFEnumerator*)enumerator;

#ifdef OF_HAVE_BLOCKS
/**
 * Executes a block for each object.
 *
 * \param block The block to execute for each object
 */
- (void)enumerateObjectsUsingBlock: (of_array_enumeration_block_t)block;
#endif
@end

/// \cond internal
@interface OFArrayEnumerator: OFEnumerator
{
	OFDataArray   *array;
	size_t	      count;
	unsigned long mutations;
	unsigned long *mutationsPtr;
	size_t	      pos;
}

- initWithDataArray: (OFDataArray*)data
   mutationsPointer: (unsigned long*)mutations_ptr;
@end
/// \endcond

#import "OFMutableArray.h"