// swad_forum.h: forums

#ifndef _SWAD_FOR
#define _SWAD_FOR
/*
    SWAD (Shared Workspace At a Distance in Spanish),
    is a web platform developed at the University of Granada (Spain),
    and used to support university teaching.

    This file is part of SWAD core.
    Copyright (C) 1999-2015 Antonio Caņas Vargas

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

    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 Affero General Public License for more details.

    You should have received a copy of the GNU Affero General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.
*/
/*****************************************************************************/
/********************************* Headers ***********************************/
/*****************************************************************************/

#include "swad_centre.h"
#include "swad_degree.h"
#include "swad_institution.h"
#include "swad_pagination.h"
#include "swad_string.h"

/*****************************************************************************/
/************************ Public constants and types *************************/
/*****************************************************************************/

#define For_NUM_WHICH_FORUMS 2
typedef enum
  {
   For_ONLY_CURRENT_FORUMS	= 0,
   For_ALL_MY_FORUMS		= 1,
  } For_WhichForums_t;	// Which forums I want to see: all my forums or only the forums of current institution/degree/course.
#define For_DEFAULT_WHICH_FORUMS For_ONLY_CURRENT_FORUMS

#define For_NUM_TYPES_FORUM 12
typedef enum
  {
   For_FORUM_COURSE_USRS	=  0,
   For_FORUM_COURSE_TCHS	=  1,
   For_FORUM_DEGREE_USRS	=  2,
   For_FORUM_DEGREE_TCHS	=  3,
   For_FORUM_CENTRE_USRS	=  4,
   For_FORUM_CENTRE_TCHS	=  5,
   For_FORUM_INSTITUTION_USRS	=  6,
   For_FORUM_INSTITUTION_TCHS	=  7,
   For_FORUM_GLOBAL_USRS	=  8,
   For_FORUM_GLOBAL_TCHS	=  9,
   For_FORUM_SWAD_USRS		= 10,
   For_FORUM_SWAD_TCHS		= 11,
  } For_ForumType_t;	// Don't change numbers (used in database)

struct ForumThread
  {
   long ThrCod;
   long PstCod[2];
   long UsrCod[2];
   char WriteTime[2][Cns_MAX_BYTES_DATE+1];
   bool Enabled[2];
   char Subject[Cns_MAX_BYTES_SUBJECT+1];
   unsigned NumPosts;
   unsigned NumUnreadPosts;	// Number of my unread posts in thread
   unsigned NumMyPosts;		// Number of posts written by me in thread
   unsigned NumWriters;
   unsigned NumReaders;
  };
typedef enum
  {
   For_FIRST_MSG = 0,
   For_LAST_MSG  = 1,
  } For_ForumOrderType_t;
#define For_DEFAULT_ORDER For_LAST_MSG

/*****************************************************************************/
/***************************** Public prototypes *****************************/
/*****************************************************************************/

void For_EnbPst (void);
void For_DisPst (void);
bool For_GetIfForumPstExists (long PstCod);
bool For_GetIfPstIsEnabled (long PstCod);
void For_DeletePstFromDisabledPstTable (long PstCod);
void For_InsertPstIntoBannedPstTable (long PstCod);

long For_InsertForumPst (long ThrCod,long UsrCod,const char *Subject,const char *Content);
bool For_RemoveForumPst (long PstCod);
unsigned For_NumPstsInThrWithPstCod (long PstCod,long *ThrCod);
long For_InsertForumThread (For_ForumType_t ForumType,long FirstPstCod);
void For_RemoveThreadOnly (long ThrCod);
void For_RemoveThreadAndItsPsts (long ThrCod);
void For_GetThrSubject (long ThrCod,char *Subject,size_t MaxSize);
For_ForumType_t For_GetForumTypeOfAPost (long PstCod);
void For_UpdateThrFirstAndLastPst (long ThrCod,long FirstPstCod,long LastPstCod);
void For_UpdateThrLastPst (long ThrCod,long LastPstCod);
long For_GetLastPstCod (long ThrCod);
void For_UpdateThrReadTime (long ThrCod,const char *ReadTime);
unsigned For_GetNumOfReadersOfThr (long ThrCod);
unsigned For_GetNumOfWritersInThr (long ThrCod);
unsigned For_GetNumPstsInThr (long ThrCod);
unsigned For_GetNumMyPstInThr (long ThrCod);
void For_GetThrReadTime (long ThrCod,char *ReadTime);
void For_DeleteThrFromReadThrs (long ThrCod);
void For_RemoveUsrFromReadThrs (long UsrCod);

void For_GetNotifForumPst (char *SummaryStr,char **ContentStr,long PstCod,unsigned MaxChars,bool GetContent);

void For_PutAllHiddenParamsForum (void);
void For_SetForumTypeAndRestrictAccess (void);
void For_ShowForumList (void);
void For_SetForumName (For_ForumType_t ForumType,
                       struct Institution *Ins,
                       struct Centre *Ctr,
                       struct Degree *Deg,
                       struct Course *Crs,
                       char *ForumName,Txt_Language_t Language,bool UseHTMLEntities);
unsigned For_GetNumThrsWithNewPstsInForum (For_ForumType_t ForumType,unsigned NumThreads);
void For_ShowForumThrs (void);
unsigned For_GetNumTotalForumsOfType (For_ForumType_t ForumType,
                                      long InsCod,long CtrCod,long DegCod,long CrsCod);
unsigned For_GetNumTotalThrsInForumsOfType (For_ForumType_t ForumType,
                                            long InsCod,long CtrCod,long DegCod,long CrsCod);
unsigned For_GetNumThrsInForum (For_ForumType_t ForumType);
unsigned For_GetNumTotalPstsInForumsOfType (For_ForumType_t ForumType,
                                            long InsCod,long CtrCod,long DegCod,long CrsCod,
                                            unsigned *NumUsrsToBeNotifiedByEMail);
unsigned For_GetNumPstsInForum (For_ForumType_t ForumType);
void For_ListForumThrs (long ThrCods[Pag_ITEMS_PER_PAGE],struct Pagination *PaginationThrs);
void For_GetThrData (struct ForumThread *Thr);
void For_WriteThrSubject (long ThrCod);
void For_ShowThrPsts (void);
void For_GetParamsForum (void);
void For_PutHiddenParamThrCod (long ThrCod);
void For_ShowForumLevel2 (long ThrCod);
void For_WriteFormForumPst (bool IsReply,long ThrCod,const char *Subject);
void For_RecForumPst (void);
void For_DelPst (void);
void For_ReqDelThr (void);
void For_DelThr (void);
void For_CutThr (void);
void For_PasteThr (void);
long For_GetThrInMyClipboard (void);
bool For_CheckIfThrBelongsToForum (long ThrCod,For_ForumType_t ForumType);
void For_MoveThrToCurrentForum (long ThrCod);
void For_InsertThrInClipboard (long ThrCod);
void For_RemoveExpiredThrsClipboards (void);
void For_RemoveThrCodFromThrClipboard (long ThrCod);
void For_RemoveUsrFromThrClipboard (long UsrCod);

#endif