/*
  Copyright (C) 2004 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.
*/
// $Id$

#include <SOGoUI/UIxComponent.h>

/*
  AnaisAttendeeSelector
  
  Select a set of attendees using Anais.
  
  Bindings:
    attendees       - array of iCalPerson objects
    selectorID      - string to be used as the identifier for form/JS elements
    withCN          - show CN of person (eg disabled for resources)
    withAddressBook - allow selection from private address book (default:NO)
    division        - Anais division
    emailForUser    - default EMail
    cnForUser       - default CN
    role            - role for submitted attendees

  Sample:
    <var:component className="AnaisAttendeeSelector"
                   selectorID="participant"
                   attendees="attendees"
                   const:division="CC"
                  />
*/

@class iCalPerson;

@interface AnaisAttendeeSelector : UIxComponent
{
  NSString   *selectorID;
  NSString   *division;
  NSArray    *attendees;
  iCalPerson *attendee;
  NSString   *emailForUser;
  NSString   *cnForUser;
  NSString   *role;
  struct {
    int withCN:1;
    int withAddressBook:1;
    int reserved:30;
  } flags;
}

@end

#include <NGiCal/NGiCal.h>
#include <SOGoLogic/AgenorUserManager.h>
#include <Scheduler/iCalPerson+UIx.h>
#include <NGObjWeb/WOContext.h>
#include <NGObjWeb/WORequest.h>
#include "common.h"

@implementation AnaisAttendeeSelector

static BOOL debugOn = NO;

+ (void)initialize {
  NSUserDefaults *ud = [NSUserDefaults standardUserDefaults];
  
  debugOn = [ud boolForKey:@"AnaisDebugEnabled"];
}

- (void)dealloc {
  [self->role         release];
  [self->emailForUser release];
  [self->cnForUser    release];
  [self->division     release];
  [self->selectorID   release];
  [self->attendee     release];
  [self->attendees    release];
  [super dealloc];
}

/* notifications */

- (void)sleep {
  [self->attendee release]; self->attendee = nil;
  [super sleep];
}

/* accessors */

- (void)setAttendees:(NSArray *)_attendees {
  ASSIGN(self->attendees, _attendees);
}
- (NSArray *)attendees {
  return self->attendees;
}
- (BOOL)hasAttendees {
  return [[self attendees] count] > 0 ? YES : NO;
}
- (BOOL)hasNoAttendees {
  return [[self attendees] count] == 0 ? YES : NO;
}

- (void)setWithCN:(BOOL)_flag {
  self->flags.withCN = _flag ? 1 : 0;
}
- (BOOL)withCN {
  return self->flags.withCN ? YES : NO;
}

- (void)setWithAddressBook:(BOOL)_flag {
  self->flags.withAddressBook = _flag ? 1 : 0;
}
- (BOOL)withAddressBook {
  return self->flags.withAddressBook ? YES : NO;
}

- (void)setAttendee:(iCalPerson *)_attendee {
  ASSIGN(self->attendee, _attendee);
}
- (iCalPerson *)attendee {
  return self->attendee;
}

- (void)setDivision:(NSString *)_value {
  ASSIGNCOPY(self->division, _value);
}
- (NSString *)division {
  return self->division;
}

- (void)setRole:(NSString *)_value {
  ASSIGNCOPY(self->role, _value);
}
- (NSString *)role {
  return self->role;
}

- (void)setEmailForUser:(NSString *)_value {
  ASSIGNCOPY(self->emailForUser, _value);
}
- (NSString *)emailForUser {
  return self->emailForUser;
}

- (void)setCnForUser:(NSString *)_value {
  ASSIGNCOPY(self->cnForUser, _value);
}
- (NSString *)cnForUser {
  return self->cnForUser;
}

- (BOOL)showDefaultAttendees {
  return [self hasNoAttendees] && [[self emailForUser] length] > 0 ? YES : NO;
}

/* email, stat, cn */

- (NSString *)combinedInfoForUser {
  NSString *e, *c;

  e = [self emailForUser];
  c = [self cnForUser];
  return [[e stringByAppendingString:@";0;"] stringByAppendingString:c];
}

- (NSString *)combinedInfo {
  iCalPerson *p;
  NSString   *e, *stat, *c;
  
  p    = [self attendee];
  e    = [p rfc822Email];
  c    = [p cnForDisplay];
  stat = [NSString stringWithFormat:@";%d;", [p participationStatus]];
  return [[e stringByAppendingString:stat] stringByAppendingString:c];
}

/* id accessors */

- (void)setSelectorID:(NSString *)_value {
  ASSIGNCOPY(self->selectorID, _value);
}
- (NSString *)selectorID {
  return self->selectorID;
}
- (NSString *)capitalizedSelectorID {
  return [[self selectorID] capitalizedString];
}

- (NSString *)windowId {
  /* eg: 'Resources' */
  return [[self capitalizedSelectorID] stringByAppendingString:@"s"];
}
- (NSString *)callbackName {
  /* eg: 'addResource' */
  return [@"add" stringByAppendingString:[self capitalizedSelectorID]];
}
- (NSString *)tableId {
  /* eg: 'resources' */
  return [[self selectorID] stringByAppendingString:@"s"];
}
- (NSString *)checkboxId {
  /* eg: 'resources' */
  return [self tableId]; /* TODO: znek, is this ok? */
}

/* handling requests */

- (NSArray *)getICalPersonsFromFormValues:(NSArray *)_values {
  unsigned i, count;
  NSMutableArray *result;

  count = [_values count];
  result = [NSMutableArray arrayWithCapacity:count];
  for (i = 0; i < count; i++) {
    NSString   *pString, *email, *cn;
    NSRange    r;
    iCalPerson *p;
    
    pString = [_values objectAtIndex:i];
    if ([pString length] == 0)
      continue;

    p = [[iCalPerson alloc] init];

    /* sample: 'test.et.di.cete-lyon@equipement.gouv.fr;1;test' */
    /* delimiter between email and partStat */
    r = [pString rangeOfString:@";"];
    if (r.length > 0) {
      email = [pString substringToIndex:r.location];
      
      pString = [pString substringFromIndex:NSMaxRange(r)];
      /* delimiter between partStat and CN */
      r = [pString rangeOfString:@";"];
      if (r.length > 0) {
        NSString *stat;
        
        stat  = [pString substringToIndex:r.location];
        [p setParticipationStatus:[stat intValue]];
        cn    = [pString substringFromIndex:NSMaxRange(r)];
        if ([cn length] == 0) cn = nil;
      }
    }
    else {
      email = pString;
      cn    = nil;
    }
    if (cn == nil) {
      /* fallback */
      AgenorUserManager *um = [AgenorUserManager sharedUserManager];
      cn = [um getCNForUID:[um getUIDForEmail:email]];
    }
    
    [p setEmail:[@"mailto:" stringByAppendingString:email]];
    if ([cn isNotNull]) [p setCn:cn];
    
    /* see RFC2445, sect. 4.2.16 for details */
    [p setRole:[self role]];
    [result addObject:p];
    [p release];
  }
  return result;
}
- (void)takeValuesFromRequest:(WORequest *)_rq inContext:(WOContext *)_ctx {
  /* OK, we have a special form value processor */
  NSArray *tmp;
  
  [self debugWithFormat:@"Note: will take values ..."];
  
  tmp = [self getICalPersonsFromFormValues:
		[_rq formValuesForKey:[self checkboxId]]];
  [self debugWithFormat:@"  got %i attendees: %@", [tmp count], tmp];
  [self setAttendees:tmp];
}

/* response generation */

- (NSString *)jsCode {
  NSMutableString *ms;
  WOContext *ctx;
  NSString *s;

  ms = [NSMutableString stringWithCapacity:128];
  
  ctx = [self context];
  if (![[ctx valueForKey:@"HasAddTableAnaisAttendeeSelector"] boolValue]) {
    static NSString *script = \
      @"function unescapeCallbackParameter(s) {\n"
      @"  s = s.replace(/&apos;/g, \"'\");\n"
      @"  s = s.replace(/&quot;/g, '\"');\n"
      @"  return s;\n"
      @"}\n"
      @"\n"
      @"function addToTable(tableId, type, cn, dn, email, uid, sn) {\n"
      @"  var test = document.getElementById(email);\n"
      @"  if(test)\n"
      @"    return;\n"
      @"\n"
      @"  var table = document.getElementById(tableId);\n"
      @"  var tr = document.createElement('tr');\n"
      @"  var td, checkbox, text;\n"
      @"\n"
      @"  cn = this.unescapeCallbackParameter(cn);\n"
      @"  td = document.createElement('td');\n"
      @"  checkbox = document.createElement('input');\n"
      @"  checkbox.setAttribute('type', 'checkbox');\n"
      @"  checkbox.setAttribute('checked', 'checked');\n"
      @"  checkbox.setAttribute('value', email + ';0;' + cn);\n"
      @"  checkbox.setAttribute('id', email);\n"
      @"  checkbox.setAttribute('name', tableId);\n"
      @"  td.appendChild(checkbox);\n"
      @"  tr.appendChild(td);\n"
      @"  td = document.createElement('td');\n"
      @"  text = document.createTextNode(cn);\n"
      @"  td.appendChild(text);\n"
      @"  tr.appendChild(td);\n"
      @"  table.appendChild(tr);\n"
      @"}\n";
    [ms appendString:script];
    
    [ctx takeValue:[NSNumber numberWithBool:YES]
	       forKey:@"HasAddTableAnaisAttendeeSelector"];
  }
  
  s = 
    //    @"function %@(type, cn, dn, email, uid, sn) {\n"
    //    @"  addToTable('%@', type, cn, dn, email, uid, sn);\n"
    //    @"}\n";
    @"function %@() {\n"
    @" var type=arguments[0];\n"
    @" var email=arguments[1];\n"
    @" var uid=arguments[2];\n"
    @" var sn=arguments[3];\n"
    @" var cn=arguments[4];\n"
    @" var dn=arguments[5];\n"
    @"  addToTable('%@', type, cn, dn, email, uid, sn);\n"
    @"}\n";

  [ms appendFormat:s, [self callbackName], [self tableId]];
  return ms;
}

/* debugging */

- (BOOL)isDebuggingEnabled {
  return debugOn;
}

@end /* AnaisAttendeeSelector */