/** 
   EOOrQualifier.m <title>EOOrQualifier</title>

   Copyright (C) 2000-2002,2003,2004,2005 Free Software Foundation, Inc.

   Author: Mirko Viviani <mirko.viviani@gmail.com>
   Date: February 2000

   $Revision$
   $Date$

   <abstract></abstract>

   This file is part of the GNUstep Database Library.

   <license>
   This library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Library General Public
   License as published by the Free Software Foundation; either
   version 3 of the License, or (at your option) any later version.

   This library 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
   Library General Public License for more details.

   You should have received a copy of the GNU Library General Public
   License along with this library; see the file COPYING.LIB.
   If not, write to the Free Software Foundation,
   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
   </license>
**/

#include "config.h"

#ifdef GNUSTEP
#include <Foundation/NSArray.h>
#include <Foundation/NSDictionary.h>
#include <Foundation/NSEnumerator.h>
#include <Foundation/NSSet.h>
#include <Foundation/NSString.h>
#include <Foundation/NSDebug.h>
#else
#include <Foundation/Foundation.h>
#include <GNUstepBase/GNUstep.h>
#include <GNUstepBase/GSObjCRuntime.h>
#include <GNUstepBase/NSDebug+GNUstepBase.h>
#include <GNUstepBase/NSObject+GNUstepBase.h>
#endif

#include <EOControl/EOQualifier.h>
#include <EOControl/EODebug.h>


@implementation EOOrQualifier

/**
 * Returns an autoreleased EOAndQualifier consisting of the provided array of
 * qualifiers.  This method calls [EOOrQualifier-initWithQualifierArray:].
 */
+ (EOQualifier *) qualifierWithQualifierArray: (NSArray *)array
{
  return AUTORELEASE([[self alloc] initWithQualifierArray: array]);
}

/**
 * Returns an autoreleased EOAndQualifier consisting of the provided
 * nil terminated list of qualifiers.  This method calls
 * [EOOrQualifier-initWithQualifierArray:].
 */
+ (EOQualifier *) qualifierWithQualifiers: (EOQualifier *)qualifiers, ...
{
  NSArray *qualArray;

  GS_USEIDLIST(qualifiers, qualArray
	       = AUTORELEASE([[NSArray alloc] initWithObjects: __objects
					      count: __count]));

  return AUTORELEASE([[self alloc] initWithQualifierArray: qualArray]);
}

/**
 * Initializes the receiver with the provided
 * nil terminated list of qualifiers.  This method calls
 * [EOOrQualifier-initWithQualifierArray:].
 */
- (id) initWithQualifiers: (EOQualifier *)qualifiers, ...
{
  NSArray *qualArray;

  GS_USEIDLIST(qualifiers, qualArray
	       = AUTORELEASE([[NSArray alloc] initWithObjects: __objects
					      count: __count]));

  return [self initWithQualifierArray: qualArray];
}

/** <init />
 * Initializes the receiver with the provided array of qualifiers.
 */
- (id) initWithQualifierArray: (NSArray *)array
{
  if ((self = [super init]))
    {
      ASSIGNCOPY(_qualifiers, array);
    }

  return self;
}

- (void) dealloc
{
  DESTROY(_qualifiers);

  [super dealloc];
}

/**
 * Returns the recievers array of qualifiers.
 */
- (NSArray *) qualifiers
{
  return _qualifiers;
}

/**
 * EOQualifierEvaluation protocol
 * Returns NO if all of the receivers qualifiers return NO to
 * [EOQualifierEvaluation-evaluateWithObjects:] with object.  This method
 * returns YES as soon as the first qualifier returns YES.
 */
- (BOOL) evaluateWithObject: (id)object
{
  NSEnumerator *qualifiersEnum;
  EOQualifier *qualifier;

  qualifiersEnum = [_qualifiers objectEnumerator];
  while ((qualifier = [qualifiersEnum nextObject]))
    {
      if ([qualifier evaluateWithObject: object] == YES)
	return YES;
    }

  return NO;
}

- (id) qualifierMigratedFromEntity: (id)param0
                  relationshipPath: (id)param1
{
  return [self notImplemented: _cmd]; //TODO
}

- (void) _addBindingsToDictionary: (NSMutableDictionary*)dictionary
{
  int i=0;
  int count=[_qualifiers count];
  for(i=0;i<count;i++)
      [[_qualifiers objectAtIndex:i]_addBindingsToDictionary:dictionary];
}

- (EOQualifier *) qualifierWithBindings: (NSDictionary *)bindings
                   requiresAllVariables: (BOOL)requiresAllVariables
{
  EOQualifier* resultQualifier=nil;
  int i=0;
  int count=[_qualifiers count];
  NSMutableArray* newQualifiers=nil;


  for(i=0;i<count;i++)
    {
      EOQualifier* qualifier=[_qualifiers objectAtIndex:i];
      EOQualifier* newQualifier=[qualifier qualifierWithBindings:bindings
                                           requiresAllVariables:requiresAllVariables];
      if (newQualifier)
        {
          if (!newQualifiers)
            newQualifiers=(NSMutableArray*)[NSMutableArray array];
          [newQualifiers addObject:newQualifier];
        };
    };
  if ([newQualifiers count]>0)
    {
      if ([newQualifiers count]==1)
        resultQualifier=[newQualifiers lastObject];
      else 
        resultQualifier=[[self class]qualifierWithQualifierArray:newQualifiers];
    };
  return resultQualifier;
}

- (id) initWithKeyValueUnarchiver: (id) archiver
{
  if ((self = [super init])) {
    id qualifierArray = [archiver decodeObjectForKey:@"qualifiers"];
    ASSIGN (_qualifiers, qualifierArray);
  }
  return self;
}

- (void) encodeWithKeyValueArchiver: (id)param0
{
  [self notImplemented: _cmd]; //TODO
}

- (NSException *) validateKeysWithRootClassDescription:(EOClassDescription*)classDescription
{
  int i=0;
  int count=[_qualifiers count];
  for(i=0;i<count;i++)
    [[_qualifiers objectAtIndex:i]validateKeysWithRootClassDescription:classDescription];
  //TODO
  return nil;
}

- (NSString *) description
{
  NSString *dscr;
  
  dscr = [NSString stringWithFormat: @"(%@)",
		   [_qualifiers componentsJoinedByString: @" OR "]];

  return dscr;
}

/**
 * Deprecated debug description.  Expect it to be removed.
 */
- (NSString *)debugDescription
{
  NSString *dscr;

  dscr = [NSString stringWithFormat: @"<%s %p - qualifiers: %@>",
		   object_getClassName(self),
		   (void*)self,
                   _qualifiers];
  return dscr;
}

- (void)addQualifierKeysToSet: (NSMutableSet *)keys
{
  EOQualifier *qual;
  unsigned int i,n;
  for (i=0, n=[_qualifiers count]; i < n; i++)
    {
      qual = [_qualifiers objectAtIndex:i];
      [qual addQualifierKeysToSet: keys];
    }
}
@end