/*
  Copyright (C) 2000-2005 SKYRIX Software AG

  This file is part of OpenGroupware.org.

  OGo is free software; you can redistribute it and/or modify it under
  the terms of the GNU Lesser General Public License as published by the
  Free Software Foundation; either version 2, or (at your option) any
  later version.

  OGo 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 for more details.

  You should have received a copy of the GNU Lesser General Public
  License along with OGo; see the file COPYING.  If not, write to the
  Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA
  02111-1307, USA.
*/

#include <OGoFoundation/OGoComponent.h>

@class NSString, NSArray, NSMutableDictionary, EOQualifier, NSData;

@interface LSWEnterpriseAdvancedSearch : OGoComponent
{
@private
  NSString            *maxSearchCount;
  NSArray             *extendedAttributeKeys;
  NSMutableDictionary *enterprise;
  EOQualifier         *qualifier;
  NSString            *qualifierOperator;
  id                  item;      // non-retained
  NSData              *formletterData;

  NSString            *udKey;
  NSString            *searchTitle;
  NSString            *saveTitle;
  BOOL                showTab;
}

/* PrivateMethods */

- (void)_createQualifier;
- (void)setMaxSearchCount:(NSString *)_maxSearchCount;
- (NSString *)maxSearchCount;
- (NSMutableDictionary *)_createSearchInfo;
- (void)_setSearchFields:(NSDictionary *)_fields;
- (id)search;

@end

#include "common.h"
#include <NGExtensions/NSString+Ext.h>
#include <OGoContacts/SkyAddressConverterDataSource.h>
#include <OGoContacts/SkyEnterpriseDataSource.h>

@implementation LSWEnterpriseAdvancedSearch

static NSString *KeywordSeparator = @", ";

- (id)init {
  if ((self = [super init])) {
    NSMutableArray *keys;
    NSArray *attrs       = nil;
    int     i, cnt;
    
    // TODO: move this code to a method
    keys = [NSMutableArray arrayWithCapacity:16];
    
    attrs = [[[self session]
                    userDefaults]
                    arrayForKey:@"SkyPublicExtendedEnterpriseAttributes"];

    for (i = 0, cnt = [attrs count]; i < cnt; i++) {
      [keys addObject:
	      [(NSDictionary *)[attrs objectAtIndex:i] objectForKey:@"key"]];
    }
    
    keys = (id)[keys sortedArrayUsingSelector:@selector(compare:)];
    self->extendedAttributeKeys = [keys retain];
    
    self->enterprise = [[NSMutableDictionary alloc] initWithCapacity:16];
  }
  return self;
}

- (void)dealloc {
  [self->qualifierOperator     release];
  [self->enterprise            release];
  [self->extendedAttributeKeys release];
  [self->formletterData        release];
  [self->qualifier             release];
  [self->maxSearchCount        release];
  [self->udKey                 release];
  [self->searchTitle           release];
  [self->saveTitle             release];
  [super dealloc];
}

/* defaults */

- (NSArray *)extendedEnterpriseAttributesKeys {
  return self->extendedAttributeKeys;
}

/* accessors */

- (void)setEnterprise:(NSMutableDictionary *)_enterprise {
  ASSIGN(self->enterprise, _enterprise);
}
- (NSMutableDictionary *)enterprise {
  return self->enterprise;
}

// TODO: dup to LSWPersonAdvancedSearch, this is a hack used in Logic
- (void)setKeywordsAsArray:(NSArray *)_a {
  [[self enterprise] takeValue:[_a componentsJoinedByString:KeywordSeparator] 
		     forKey:@"keywords"];
}
- (NSArray *)keywordsAsArray {
  NSString *s;
  
  if (![(s = [[self enterprise] valueForKey:@"keywords"]) isNotNull])
    return nil;
  return [s componentsSeparatedByString:KeywordSeparator];
}

- (void)setQualifier:(EOQualifier *)_qualifier {
}
- (EOQualifier *)qualifier {
  return self->qualifier;
}

- (void)setQualifierOperator:(NSString *)_op {
  ASSIGNCOPY(self->qualifierOperator, _op);
}
- (NSString *)qualifierOperator {
  return [self->qualifierOperator isNotNull] 
    ? self->qualifierOperator : (NSString *)@"AND";
}

- (void)setItem:(id)_item {
  self->item = _item;
}
- (id)item {
  return self->item;
}

- (void)setMaxSearchCount:(NSString *)_maxSearchCount {
  ASSIGN(self->maxSearchCount, _maxSearchCount);
}
- (NSString *)maxSearchCount {
  return self->maxSearchCount;
}

- (void)setFormletterData:(id)_data {
  ASSIGN(self->formletterData, _data);
}
- (id)formletterData {
  return self->formletterData;
}

- (BOOL)hasExtendedAttributes {
  return ([self->extendedAttributeKeys count] > 0);
}

- (NSArray *)currentValues {
  return [self->extendedAttributeKeys
              sortedArrayUsingSelector:@selector(compare:)];
}

- (NSString *)currentLabel {
  NSString *label;

  label = [[self labels] valueForKey:self->item];
  return (label == nil) ? (NSString *)self->item : label;
}

/* search support */

- (NSMutableDictionary *)_createSearchInfo {
  NSMutableDictionary *dict;
  NSArray             *keys;
  int                 i, cnt;

  keys = [self->enterprise allKeys];
  cnt  = [keys count];
  dict = [NSMutableDictionary dictionaryWithCapacity:cnt+1];
  
  for (i = 0; i < cnt; i++) {
    NSArray  *components;
    NSString *key;
    id       value;
    
    key        = [keys objectAtIndex:i];
    value      = [self->enterprise objectForKey:key];
    
    if (![value isNotNull] || [value length] == 0)
      continue;

    components = [key componentsSeparatedByString:@"#"];
    key        = [components componentsJoinedByString:@"."];

    [dict setObject:value forKey:key];
  }

  return dict;
}

- (void)_setSearchFields:(NSDictionary *)_fields {
  NSArray             *keys;
  int                 i, cnt;

  keys = [_fields allKeys];
  cnt  = [keys count];

  // clear form
  [self->enterprise removeAllObjects];
  [self takeValue:nil forKey:@"companyValueAttribute"];
  [self takeValue:nil forKey:@"companyValueValue"];
  
  for (i = 0; i < cnt; i++) {
    NSArray  *components;
    NSString *key;
    id       value;
    
    key        = [keys objectAtIndex:i];
    value      = [_fields objectForKey:key];
    
    components = [key componentsSeparatedByString:@"."];
    key        = [components componentsJoinedByString:@"#"];

    if ([key isEqualToString:@"companyValueValue"]) 
      [self takeValue:value forKey:@"companyValueValue"];
    else if ([key isEqualToString:@"companyValueAttribute"]) 
      [self takeValue:value forKey:@"companyValueAttribute"];
    
    else if ([value isNotNull] && [value length] != 0)
      [self->enterprise setObject:value forKey:key];
  }
}

- (void)_createQualifier {
  // DUP: LSWPersonAdvancedSearch
  NSMutableDictionary *dict;
  NSArray             *keys;
  int                 i, cnt;
  NSMutableArray      *qualifiers;
  
  dict = [self _createSearchInfo];
  
  if ([self valueForKey:@"companyValueAttribute"] &&
      [self valueForKey:@"companyValueValue"]) {
    [dict setObject:[self valueForKey:@"companyValueValue"]
          forKey:[self valueForKey:@"companyValueAttribute"]];
  }
  
  qualifiers = [[NSMutableArray alloc] initWithCapacity:4];
  keys       = [dict allKeys];
  
  for (i = 0, cnt = [keys count]; i < cnt; i++) {
    EOQualifier *q;
    NSString *key;
    NSString *value;
    
    key   = [keys objectAtIndex:i];
    value = [[dict objectForKey:key] stringValue];
    
    /* special keywords processing */
    
    if ([key isEqualToString:@"keywords"]) {
      if ([value rangeOfString:KeywordSeparator].length > 0) {
        NSArray  *keywords;
        unsigned j, jcnt;
        
        keywords = [value componentsSeparatedByString:KeywordSeparator];
        for (j = 0, jcnt = [keywords count]; j < jcnt; j++) {
          // Note: datasource only supports like with a suffix-star
          q = [[EOKeyValueQualifier alloc]
                initWithKey:@"keywords"
                operatorSelector:EOQualifierOperatorLike
                value:
                  [[keywords objectAtIndex:j] stringByAppendingString:@"*"]];
          if (q != nil) [qualifiers addObject:q];
          [q release]; q = nil;
        }
        continue;
      }
    }
    
    /* create LIKE qualifiers for fields */
    
    if ([value rangeOfString:@"%"].length > 0) 
      value = [value stringByReplacingString:@"%" withString:@"*"];
    if (![(NSString *)value hasSuffix:@"*"])
      value = [value stringByAppendingString:@"*"];
    
    q = [[EOKeyValueQualifier alloc]
          initWithKey:key
          operatorSelector:EOQualifierOperatorLike
          value:value];
    if (q != nil) [qualifiers addObject:q];
    [q release]; q = nil;
  }
  
  [self->qualifier release]; self->qualifier = nil;
  
  self->qualifier = [[self qualifierOperator] isEqualToString:@"OR"]
    ? [[EOOrQualifier alloc]  initWithQualifierArray:qualifiers]
    : [[EOAndQualifier alloc] initWithQualifierArray:qualifiers];
  [qualifiers release]; qualifiers = nil;
}

/* actions */

- (id)search {
  [self _createQualifier];
  [self->formletterData release]; self->formletterData = nil;
  return [self performParentAction:@"advancedSearch"];
}

- (id)formletter {
  SkyAddressConverterDataSource *ds = nil;
  SkyEnterpriseDataSource *sds;
  EOFetchSpecification *fspec;
  NSDictionary         *hints;
  NSString             *kind;
  LSCommandContext     *ctx;
  
  [self _createQualifier];

  kind  = [[[self session] userDefaults] objectForKey:@"formletter_kind"];
  fspec = [[EOFetchSpecification alloc] init];
  hints = [[NSDictionary alloc] initWithObjectsAndKeys:kind, @"kind", nil];
  ctx   = [(OGoSession *)[self session] commandContext];
  
  sds = [(SkyEnterpriseDataSource *)[SkyEnterpriseDataSource alloc] 
				    initWithContext:ctx];
  ds  = [[SkyAddressConverterDataSource alloc] 
	  initWithDataSource:sds context:ctx labels:[self labels]];
  [sds release]; sds = nil;
  
  [fspec setQualifier:self->qualifier];
  [fspec setHints:hints];
  [ds setFetchSpecification:fspec];
  [fspec release]; fspec = nil;
  [hints release]; hints = nil;

  /* perform fetch */

  [self->formletterData release]; self->formletterData = nil;
  self->formletterData = [[[ds fetchObjects] lastObject] retain];
  
  [ds release]; ds = nil;
  return nil;
}

- (id)clearForm {
  [self _createQualifier];
  [self->enterprise removeAllObjects];
  return nil;
}

- (BOOL)hasFormletter {
  return (self->formletterData != nil);
}

/* SavedSearches */
// TODO: move to some separate class

- (void)setUserDefaultKey:(NSString *)_key {
  ASSIGN(self->udKey,_key);
}
- (NSString *)userDefaultKey {
  return self->udKey;
}

- (void)setSearchTitle:(NSString *)_title {
  ASSIGN(self->searchTitle,_title);
}
- (NSString *)searchTitle {
  return self->searchTitle;
}

- (void)setSaveTitle:(NSString *)_title {
  ASSIGN(self->saveTitle,_title);
}
- (NSString *)saveTitle {
  return self->saveTitle;
}

- (void)setShowTab:(BOOL)_flag {
  self->showTab = _flag;
}
- (BOOL)showTab {
  return self->showTab;  
}

- (NSArray *)savedSearches {
  return [[[[[self session] userDefaults] objectForKey:[self userDefaultKey]]
                   allKeys] sortedArrayUsingSelector:@selector(compare:)];
}

- (BOOL)hasSavedSearches {
  return [[self savedSearches] count] ? YES : NO;
}

- (id)saveSearch {
  NSUserDefaults      *ud;
  NSMutableDictionary *settings;
  NSMutableDictionary *info;
  EOQualifier  *qual;

  if (![self->saveTitle length]) {
    [[self parent] setErrorString:
                   [[self labels] valueForKey:@"error_setSearchTitle"]];
    return nil;
  }

  [self _createQualifier];
  info = [self _createSearchInfo];
  {
    id tmp;
    if ((tmp = [self valueForKey:@"companyValueAttribute"]))
      [info setObject:tmp forKey:@"companyValueAttribute"];
    if ((tmp = [self valueForKey:@"companyValueValue"]))
      [info setObject:tmp forKey:@"companyValueValue"];
  }
  qual = self->qualifier;

  info = [NSDictionary dictionaryWithObjectsAndKeys:
                       info,                  @"searchFields",
                       [qual description],    @"qualifier",
                       [self qualifierOperator],    @"qualifierOperator",
                       [self maxSearchCount], @"maxSearchCount",
                       [NSNumber numberWithBool:[self showTab]], @"showTab",
                       nil];

  ud       = [[self session] userDefaults];
  settings = [ud objectForKey:[self userDefaultKey]];
  if (settings == nil) {
    settings = [NSDictionary dictionaryWithObjectsAndKeys:
                             info, self->saveTitle, nil];
  }
  else {
    settings = [[settings mutableCopy] autorelease];
    [settings setObject:info forKey:self->saveTitle];
  }
  [ud setObject:settings forKey:[self userDefaultKey]];
  [ud synchronize];
  [self setSaveTitle:@""];
  [self setShowTab:NO];

  return nil;
}

- (id)saveAndSearch {
  [self saveSearch];
  return [self search];
}

- (id)loadSavedSearch {
  NSDictionary   *settings;
  NSDictionary   *info;
  NSUserDefaults *ud;

  if ([self->searchTitle length] == 0) {
    [self _setSearchFields:nil];
    [self setSaveTitle:@""];
    [self setShowTab:NO];
    return nil;
  }

  ud       = [[self session] userDefaults];
  settings = [ud objectForKey:[self userDefaultKey]];
  info     = [settings objectForKey:self->searchTitle];

  if (info == nil) {
    NSString *s;

    s = [[self labels] valueForKey:@"error_cannotLoadSavedSearch"];
    [[self parent] setErrorString:s];
    return nil;
  }

  [self _setSearchFields:[info objectForKey:@"searchFields"]];
  [self setMaxSearchCount:[info objectForKey:@"maxSearchCount"]];
  [self setQualifierOperator:[info objectForKey:@"qualifierOperator"]];
  [self setShowTab:[[info objectForKey:@"showTab"] boolValue]];
  [self setSaveTitle:self->searchTitle];

  return nil;
}

@end /* LSWEnterpriseAdvancedSearch */