/*
 * Copyright (c) 2008-2026 Jonathan Schleifer <js@nil.im>
 *
 * All rights reserved.
 *
 * This program is free software: you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License version 3.0 only,
 * as published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License
 * version 3.0 for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * version 3.0 along with this program. If not, see
 * <https://www.gnu.org/licenses/>.
 */

#import "OFArray.h"

OF_ASSUME_NONNULL_BEGIN

@class OFIndexSet;

/** @file */

#ifdef OF_HAVE_BLOCKS
/**
 * @brief A block for replacing values in an OFMutableArray.
 *
 * @param object The object to replace
 * @param index The index of the object to replace
 * @return The object to replace the object with
 */
typedef id _Nonnull (^OFArrayReplaceBlock)(id object, size_t index);
#endif

/**
 * @class OFMutableArray OFMutableArray.h ObjFW/ObjFW.h
 *
 * @brief An abstract class for storing, adding and removing objects in an
 *	  array.
 *
 * @note Subclasses must implement @ref insertObject:atIndex:,
 *	 @ref replaceObjectAtIndex:withObject:, @ref removeObjectAtIndex: as
 *	 well as all methods of @ref OFArray that need to be implemented.
 */
@interface OFMutableArray OF_GENERIC(ObjectType): OFArray OF_GENERIC(ObjectType)
#if !defined(OF_HAVE_GENERICS) && !defined(DOXYGEN)
# define ObjectType id
#endif
/**
 * @brief Creates a new OFMutableArray with enough memory to hold the specified
 *	  number of objects.
 *
 * @param capacity The initial capacity for the OFMutableArray
 * @return A new autoreleased OFMutableArray
 */
+ (instancetype)arrayWithCapacity: (size_t)capacity;

/**
 * @brief Initializes an OFMutableArray with no objects.
 *
 * @return An initialized OFMutableArray
 */
- (instancetype)init OF_DESIGNATED_INITIALIZER;

/**
 * @brief Initializes an already allocated OFMutableArray with enough memory to
 *	  hold the specified number of objects.
 *
 * @param capacity The initial capacity for the OFMutableArray
 * @return An initialized OFMutableArray
 */
- (instancetype)initWithCapacity: (size_t)capacity OF_DESIGNATED_INITIALIZER;

/**
 * @brief Adds an object to the end of the array.
 *
 * @param object An object to add
 */
- (void)addObject: (ObjectType)object;

/**
 * @brief Adds the objects from the specified OFArray to the end of the array.
 *
 * @param array An array of objects to add
 */
- (void)addObjectsFromArray: (OFArray OF_GENERIC(ObjectType) *)array;

/**
 * @brief Inserts an object to the OFArray at the specified index.
 *
 * @param object An object to add
 * @param index The index where the object should be inserted
 */
- (void)insertObject: (ObjectType)object atIndex: (size_t)index;

/**
 * @brief Inserts the objects from the specified OFArray at the specified index.
 *
 * @param array An array of objects
 * @param index The index where the objects should be inserted
 */
- (void)insertObjectsFromArray: (OFArray OF_GENERIC(ObjectType) *)array
		       atIndex: (size_t)index;

/**
 * @brief Inserts the objects from the specified OFArray at the specified
 *	  indexes.
 *
 * @param array An array of objects
 * @param indexes The indexes where the objects should be inserted
 */
- (void)insertObjects: (OFArray OF_GENERIC(ObjectType) *)array
	    atIndexes: (OFIndexSet *)indexes;

/**
 * @brief Replaces all objects equivalent to the specified object with the
 *	  other specified object.
 *
 * @param oldObject The object to replace
 * @param newObject The replacement object
 */
- (void)replaceObject: (ObjectType)oldObject withObject: (ObjectType)newObject;

/**
 * @brief Replaces the object at the specified index with the specified object.
 *
 * @param index The index of the object to replace
 * @param object The replacement object
 */
- (void)replaceObjectAtIndex: (size_t)index withObject: (ObjectType)object;

/**
 * @brief Replaces the objects in the specified object with the specified
 *	  objects.
 *
 * @param range The range of the objects to replace
 * @param objects The objects to replace the objects in the specified range with
 */
- (void)replaceObjectsInRange: (OFRange)range
	 withObjectsFromArray: (OFArray OF_GENERIC(ObjectType) *)objects;

/**
 * @brief Replaces the objects at the specified indexes with the specified
 *	  objects.
 *
 * @param indexes The indexes of the objects to replace
 * @param objects The objects to replace the specified objects with
 */
- (void)replaceObjectsAtIndexes: (OFIndexSet *)indexes
		    withObjects: (OFArray OF_GENERIC(ObjectType) *)objects;

/**
 * @brief Replaces the object at the specified index with the specified object.
 *
 * This method is the same as @ref replaceObjectAtIndex:withObject:.
 *
 * This method is also used by the subscripting syntax.
 *
 * @param index The index of the object to replace
 * @param object The replacement object
 */
- (void)setObject: (ObjectType)object atIndexedSubscript: (size_t)index;

/**
 * @brief Replaces all objects that have the same address as the specified
 *	  object with the other specified object.
 *
 * @param oldObject The object to replace
 * @param newObject The replacement object
 */
- (void)replaceObjectIdenticalTo: (ObjectType)oldObject
		      withObject: (ObjectType)newObject;

/**
 * @brief Removes all objects equivalent to the specified object.
 *
 * @param object The object to remove
 */
- (void)removeObject: (ObjectType)object;

/**
 * @brief Removes all objects that have the same address as the specified
 *	  object.
 *
 * @param object The object to remove
 */
- (void)removeObjectIdenticalTo: (ObjectType)object;

/**
 * @brief Removes the object at the specified index.
 *
 * @param index The index of the object to remove
 */
- (void)removeObjectAtIndex: (size_t)index;

/**
 * @brief Removes the objects in the specified range.
 *
 * @param range The range of the objects to remove
 */
- (void)removeObjectsInRange: (OFRange)range;

/**
 * @brief Removes the objects at the specified indexes.
 *
 * @param indexes The indexes of the objects to remove
 */
- (void)removeObjectsAtIndexes: (OFIndexSet *)indexes;

/**
 * @brief Removes the last object.
 */
- (void)removeLastObject;

/**
 * @brief Removes all objects.
 */
- (void)removeAllObjects;

#ifdef OF_HAVE_BLOCKS
/**
 * @brief Replaces each object with the object returned by the block.
 *
 * @param block The block which returns a new object for each object
 */
- (void)replaceObjectsUsingBlock: (OFArrayReplaceBlock)block;
#endif

/**
 * @brief Exchange the objects at the specified indices.
 *
 * @param index1 The index of the first object to exchange
 * @param index2 The index of the second object to exchange
 */
- (void)exchangeObjectAtIndex: (size_t)index1 withObjectAtIndex: (size_t)index2;

/**
 * @brief Sorts the array in ascending order.
 */
- (void)sort;

/**
 * @brief Sorts the array using the specified selector and options.
 *
 * @param selector The selector to use to sort the array. It's signature
 *		   should be the same as that of -[compare:].
 * @param options The options to use when sorting the array
 */
- (void)sortUsingSelector: (SEL)selector options: (OFArraySortOptions)options;

/**
 * @brief Sorts the array using the specified function and options.
 *
 * @param compare The function to use to sort the array
 * @param context Context passed to the function to compare
 * @param options The options to use when sorting the array
 */
- (void)sortUsingFunction: (OFCompareFunction)compare
		  context: (nullable void *)context
		  options: (OFArraySortOptions)options;

#ifdef OF_HAVE_BLOCKS
/**
 * @brief Sorts the array using the specified comparator and options.
 *
 * @param comparator The comparator to use to sort the array
 * @param options The options to use when sorting the array
 */
- (void)sortUsingComparator: (OFComparator)comparator
		    options: (OFArraySortOptions)options;
#endif

/**
 * @brief Reverts the order of the objects in the array.
 */
- (void)reverse;

/**
 * @brief Converts the mutable array to an immutable array.
 */
- (void)makeImmutable;
#if !defined(OF_HAVE_GENERICS) && !defined(DOXYGEN)
# undef ObjectType
#endif
@end

OF_ASSUME_NONNULL_END
