// swad_hierarchy.c: hierarchy (system, institution, center, degree, course)

/*
    SWAD (Shared Workspace At a Distance),
    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) 1999-2021 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 ***********************************/
/*****************************************************************************/

#define _GNU_SOURCE 		// For asprintf
#include <stdio.h>		// For asprintf
#include <stdlib.h>		// For free

#include "swad_database.h"
#include "swad_degree_database.h"
#include "swad_error.h"
#include "swad_form.h"
#include "swad_global.h"
#include "swad_group_database.h"
#include "swad_hierarchy.h"
#include "swad_hierarchy_database.h"
#include "swad_hierarchy_level.h"
#include "swad_HTML.h"
#include "swad_logo.h"

/*****************************************************************************/
/************** External global variables from others modules ****************/
/*****************************************************************************/

extern struct Globals Gbl;

/*****************************************************************************/
/********** List pending institutions, centers, degrees and courses **********/
/*****************************************************************************/

void Hie_SeePending (void)
  {
   /***** List countries with pending institutions *****/
   Cty_SeeCtyWithPendingInss ();

   /***** List institutions with pending centers *****/
   Ins_SeeInsWithPendingCtrs ();

   /***** List centers with pending degrees *****/
   Ctr_SeeCtrWithPendingDegs ();

   /***** List degrees with pending courses *****/
   Deg_SeeDegWithPendingCrss ();
  }

/*****************************************************************************/
/*** Write menu to select country, institution, center, degree and course ****/
/*****************************************************************************/

void Hie_WriteMenuHierarchy (void)
  {
   extern const char *Txt_Country;
   extern const char *Txt_Institution;
   extern const char *Txt_Center;
   extern const char *Txt_Degree;
   extern const char *Txt_Course;

   /***** Begin table *****/
   HTM_TABLE_BeginCenterPadding (2);

      /***** Write a 1st selector with all countries *****/
      HTM_TR_Begin (NULL);

	 /* Label */
	 Frm_LabelColumn ("RT","cty",Txt_Country);

	 /* Data */
	 HTM_TD_Begin ("class=\"LT\"");
	    Cty_WriteSelectorOfCountry ();
	 HTM_TD_End ();

      HTM_TR_End ();

      if (Gbl.Hierarchy.Cty.CtyCod > 0)
	{
	 /***** Write a 2nd selector
		with the institutions of selected country *****/
	 HTM_TR_Begin (NULL);

	    /* Label */
	    Frm_LabelColumn ("RT","ins",Txt_Institution);

	    /* Data */
	    HTM_TD_Begin ("class=\"LT\"");
	       Ins_WriteSelectorOfInstitution ();
	    HTM_TD_End ();

	 HTM_TR_End ();

	 if (Gbl.Hierarchy.Ins.InsCod > 0)
	   {
	    /***** Write a 3rd selector
		   with all the centers of selected institution *****/
	    HTM_TR_Begin (NULL);

	       /* Label */
	       Frm_LabelColumn ("RT","ctr",Txt_Center);

	       /* Data */
	       HTM_TD_Begin ("class=\"LT\"");
		  Ctr_WriteSelectorOfCenter ();
	       HTM_TD_End ();

	    HTM_TR_End ();

	    if (Gbl.Hierarchy.Ctr.CtrCod > 0)
	      {
	       /***** Write a 4th selector
		      with all degrees of selected center *****/
	       HTM_TR_Begin (NULL);

		  /* Label */
		  Frm_LabelColumn ("RT","deg",Txt_Degree);

		  /* Data */
		  HTM_TD_Begin ("class=\"LT\"");
		     Deg_WriteSelectorOfDegree ();
		  HTM_TD_End ();

	       HTM_TR_End ();

	       if (Gbl.Hierarchy.Deg.DegCod > 0)
		 {
		  /***** Write a 5th selector
			 with all courses of selected degree *****/
		  HTM_TR_Begin (NULL);

		     /* Label */
		     Frm_LabelColumn ("RT","crs",Txt_Course);

		     /* Data */
		     HTM_TD_Begin ("class=\"LT\"");
			Crs_WriteSelectorOfCourse ();
		     HTM_TD_End ();

		  HTM_TR_End ();
		 }
	      }
	   }
	}

   /***** End table *****/
   HTM_TABLE_End ();
  }

/*****************************************************************************/
/************* Write hierarchy breadcrumb in the top of the page *************/
/*****************************************************************************/

void Hie_WriteHierarchyInBreadcrumb (void)
  {
   extern const char *The_ClassBreadcrumb[The_NUM_THEMES];
   extern const char *Txt_System;
   extern const char *Txt_Country;
   extern const char *Txt_Institution;
   extern const char *Txt_Center;
   extern const char *Txt_Degree;
   const char *ClassTxt = The_ClassBreadcrumb[Gbl.Prefs.Theme];
   char *ClassLink;

   /***** Create CSS class of links *****/
   if (asprintf (&ClassLink,"BT_LINK %s",ClassTxt) < 0)
      Err_NotEnoughMemoryExit ();

   /***** Form to go to the system *****/
   HTM_DIV_Begin ("class=\"BC %s\"",ClassTxt);

      HTM_NBSP ();

      Frm_BeginFormGoTo (ActMnu);
      Par_PutHiddenParamUnsigned (NULL,"NxtTab",(unsigned) TabSys);
	 HTM_BUTTON_SUBMIT_Begin (Txt_System,ClassLink,NULL);
	    HTM_Txt (Txt_System);
	 HTM_BUTTON_End ();
      Frm_EndForm ();

   HTM_DIV_End ();

   if (Gbl.Hierarchy.Cty.CtyCod > 0)		// Country selected...
     {
      HTM_DIV_Begin ("class=\"BC %s\"",ClassTxt);

	 /***** Separator *****/
	 HTM_Txt ("&nbsp;&gt;&nbsp;");

	 /***** Form to go to see institutions of this country *****/
	 Frm_BeginFormGoTo (ActSeeIns);
	 Cty_PutParamCtyCod (Gbl.Hierarchy.Cty.CtyCod);
	    HTM_BUTTON_SUBMIT_Begin (Gbl.Hierarchy.Cty.Name[Gbl.Prefs.Language],ClassLink,NULL);
	       HTM_Txt (Gbl.Hierarchy.Cty.Name[Gbl.Prefs.Language]);
	    HTM_BUTTON_End ();
	 Frm_EndForm ();

      HTM_DIV_End ();
     }
   else
     {
      HTM_DIV_Begin ("class=\"BC BC_SEMIOFF %s\"",ClassTxt);

	 /***** Separator *****/
	 HTM_Txt ("&nbsp;&gt;&nbsp;");

	 /***** Form to go to select countries *****/
	 Frm_BeginFormGoTo (ActSeeCty);
	    HTM_BUTTON_SUBMIT_Begin (Txt_Country,ClassLink,NULL);
	       HTM_Txt (Txt_Country);
	    HTM_BUTTON_End ();
	 Frm_EndForm ();

      HTM_DIV_End ();
     }

   if (Gbl.Hierarchy.Ins.InsCod > 0)		// Institution selected...
     {
      HTM_DIV_Begin ("class=\"BC %s\"",ClassTxt);

	 /***** Separator *****/
	 HTM_Txt ("&nbsp;&gt;&nbsp;");

	 /***** Form to see centers of this institution *****/
	 Frm_BeginFormGoTo (ActSeeCtr);
	 Ins_PutParamInsCod (Gbl.Hierarchy.Ins.InsCod);
	    HTM_BUTTON_SUBMIT_Begin (Gbl.Hierarchy.Ins.FullName,ClassLink,NULL);
	       HTM_Txt (Gbl.Hierarchy.Ins.ShrtName);
	    HTM_BUTTON_End ();
	 Frm_EndForm ();

      HTM_DIV_End ();
     }
   else if (Gbl.Hierarchy.Cty.CtyCod > 0)
     {
      HTM_DIV_Begin ("class=\"BC BC_SEMIOFF %s\"",ClassTxt);

	 /***** Separator *****/
	 HTM_Txt ("&nbsp;&gt;&nbsp;");

	 /***** Form to go to select institutions *****/
	 Frm_BeginFormGoTo (ActSeeIns);
	    HTM_BUTTON_SUBMIT_Begin (Txt_Institution,ClassLink,NULL);
	       HTM_Txt (Txt_Institution);
	    HTM_BUTTON_End ();
	 Frm_EndForm ();

      HTM_DIV_End ();
     }
   else
     {
      HTM_DIV_Begin ("class=\"BC BC_OFF %s\"",ClassTxt);

	 /***** Separator *****/
	 HTM_Txt ("&nbsp;&gt;&nbsp;");

	 /***** Hidden institution *****/
	 HTM_Txt (Txt_Institution);

      HTM_DIV_End ();
     }

   if (Gbl.Hierarchy.Ctr.CtrCod > 0)	// Center selected...
     {
      HTM_DIV_Begin ("class=\"BC %s\"",ClassTxt);

	 /***** Separator *****/
	 HTM_Txt ("&nbsp;&gt;&nbsp;");

	 /***** Form to see degrees of this center *****/
	 Frm_BeginFormGoTo (ActSeeDeg);
	 Ctr_PutParamCtrCod (Gbl.Hierarchy.Ctr.CtrCod);
	    HTM_BUTTON_SUBMIT_Begin (Gbl.Hierarchy.Ctr.FullName,ClassLink,NULL);
	       HTM_Txt (Gbl.Hierarchy.Ctr.ShrtName);
	    HTM_BUTTON_End ();
	 Frm_EndForm ();

      HTM_DIV_End ();
     }
   else if (Gbl.Hierarchy.Ins.InsCod > 0)
     {
      HTM_DIV_Begin ("class=\"BC BC_SEMIOFF %s\"",ClassTxt);

	 /***** Separator *****/
	 HTM_Txt ("&nbsp;&gt;&nbsp;");

	 /***** Form to go to select centers *****/
	 Frm_BeginFormGoTo (ActSeeCtr);
	    HTM_BUTTON_SUBMIT_Begin (Txt_Center,ClassLink,NULL);
	       HTM_Txt (Txt_Center);
	    HTM_BUTTON_End ();
	 Frm_EndForm ();

      HTM_DIV_End ();
     }
   else
     {
      HTM_DIV_Begin ("class=\"BC BC_OFF %s\"",ClassTxt);

	 /***** Separator *****/
	 HTM_Txt ("&nbsp;&gt;&nbsp;");

	 /***** Hidden center *****/
	 HTM_Txt (Txt_Center);

      HTM_DIV_End ();
     }

   if (Gbl.Hierarchy.Deg.DegCod > 0)	// Degree selected...
     {
      HTM_DIV_Begin ("class=\"BC %s\"",ClassTxt);

	 /***** Separator *****/
	 HTM_Txt ("&nbsp;&gt;&nbsp;");

	 /***** Form to go to see courses of this degree *****/
	 Frm_BeginFormGoTo (ActSeeCrs);
	 Deg_PutParamDegCod (Gbl.Hierarchy.Deg.DegCod);
	    HTM_BUTTON_SUBMIT_Begin (Gbl.Hierarchy.Deg.FullName,ClassLink,NULL);
	       HTM_Txt (Gbl.Hierarchy.Deg.ShrtName);
	    HTM_BUTTON_End ();
	 Frm_EndForm ();

      HTM_DIV_End ();
     }
   else if (Gbl.Hierarchy.Ctr.CtrCod > 0)
     {
      HTM_DIV_Begin ("class=\"BC BC_SEMIOFF %s\"",ClassTxt);

	 /***** Separator *****/
	 HTM_Txt ("&nbsp;&gt;&nbsp;");

	 /***** Form to go to select degrees *****/
	 Frm_BeginFormGoTo (ActSeeDeg);
	    HTM_BUTTON_SUBMIT_Begin (Txt_Degree,ClassLink,NULL);
	       HTM_Txt (Txt_Degree);
	    HTM_BUTTON_End ();
	 Frm_EndForm ();

      HTM_DIV_End ();
     }
   else
     {
      HTM_DIV_Begin ("class=\"BC BC_OFF %s\"",ClassTxt);

	 /***** Separator *****/
	 HTM_Txt ("&nbsp;&gt;&nbsp;");

	 /***** Hidden degree *****/
	 HTM_Txt (Txt_Degree);

      HTM_DIV_End ();
     }

   HTM_DIV_Begin ("class=\"BC%s %s\"",
		   (Gbl.Hierarchy.Level == HieLvl_CRS) ? "" :
		  ((Gbl.Hierarchy.Deg.DegCod > 0) ? " BC_SEMIOFF" :
						    " BC_OFF"),
		  ClassTxt);

      /***** Separator *****/
      HTM_Txt ("&nbsp;&gt;&nbsp;");

   HTM_DIV_End ();

   /***** Free memory used for CSS class of links *****/
   free (ClassLink);
  }

/*****************************************************************************/
/*************** Write course full name in the top of the page ***************/
/*****************************************************************************/

void Hie_WriteBigNameCtyInsCtrDegCrs (void)
  {
   extern const char *The_ClassCourse[The_NUM_THEMES];
   extern const char *Txt_TAGLINE;

   HTM_TxtF ("<h1 id=\"main_title\" class=\"%s\">",
	     The_ClassCourse[Gbl.Prefs.Theme]);

   /***** Logo *****/
   switch (Gbl.Hierarchy.Level)
     {
      case HieLvl_SYS:	// System
	 Ico_PutIcon ("swad64x64.png",Cfg_PLATFORM_FULL_NAME,"ICO40x40 TOP_LOGO");
         break;
      case HieLvl_CTY:	// Country
         Cty_DrawCountryMap (&Gbl.Hierarchy.Cty,"COUNTRY_MAP_TITLE");
         break;
      case HieLvl_INS:	// Institution
	 Lgo_DrawLogo (HieLvl_INS,Gbl.Hierarchy.Ins.InsCod,
		       Gbl.Hierarchy.Ins.ShrtName,40,"TOP_LOGO",false);
         break;
      case HieLvl_CTR:	// Center
	 Lgo_DrawLogo (HieLvl_CTR,Gbl.Hierarchy.Ctr.CtrCod,
		       Gbl.Hierarchy.Ctr.ShrtName,40,"TOP_LOGO",false);
         break;
      case HieLvl_DEG:	// Degree
      case HieLvl_CRS:	// Course
	 Lgo_DrawLogo (HieLvl_DEG,Gbl.Hierarchy.Deg.DegCod,
		       Gbl.Hierarchy.Deg.ShrtName,40,"TOP_LOGO",false);
         break;
      default:
	 break;
     }

   /***** Text *****/
   HTM_DIV_Begin ("id=\"big_name_container\"");
      if (Gbl.Hierarchy.Cty.CtyCod > 0)
	{
	 HTM_DIV_Begin ("id=\"big_full_name\"");
	    HTM_Txt (	(Gbl.Hierarchy.Level == HieLvl_CRS) ? Gbl.Hierarchy.Crs.FullName :// Full name
		     ((Gbl.Hierarchy.Level == HieLvl_DEG) ? Gbl.Hierarchy.Deg.FullName :
		     ((Gbl.Hierarchy.Level == HieLvl_CTR) ? Gbl.Hierarchy.Ctr.FullName :
		     ((Gbl.Hierarchy.Level == HieLvl_INS) ? Gbl.Hierarchy.Ins.FullName :
							 Gbl.Hierarchy.Cty.Name[Gbl.Prefs.Language]))));
	 HTM_DIV_End ();

	 HTM_DIV_Begin ("class=\"NOT_SHOWN\"");
	    HTM_Txt (" / ");	// To separate
	 HTM_DIV_End ();

	 HTM_DIV_Begin ("id=\"big_short_name\"");
	    HTM_Txt ( (Gbl.Hierarchy.Level == HieLvl_CRS) ? Gbl.Hierarchy.Crs.ShrtName :// Short name
		     ((Gbl.Hierarchy.Level == HieLvl_DEG) ? Gbl.Hierarchy.Deg.ShrtName :
		     ((Gbl.Hierarchy.Level == HieLvl_CTR) ? Gbl.Hierarchy.Ctr.ShrtName :
		     ((Gbl.Hierarchy.Level == HieLvl_INS) ? Gbl.Hierarchy.Ins.ShrtName :
							    Gbl.Hierarchy.Cty.Name[Gbl.Prefs.Language]))));
	 HTM_DIV_End ();
	}
      else	// No country specified ==> home page
	{
	 HTM_DIV_Begin ("id=\"big_full_name\"");	// Full name
	    HTM_TxtF ("%s:&nbsp;%s",Cfg_PLATFORM_SHORT_NAME,Txt_TAGLINE);
	 HTM_DIV_End ();

	 HTM_DIV_Begin ("class=\"NOT_SHOWN\"");
	    HTM_Txt (" / ");	// To separate
	 HTM_DIV_End ();

	 HTM_DIV_Begin ("id=\"big_short_name\"");	// Short name
	    HTM_Txt (Cfg_PLATFORM_SHORT_NAME);
	 HTM_DIV_End ();
	}
   HTM_DIV_End ();
   HTM_TxtF ("</h1>");
  }

/*****************************************************************************/
/**************** Copy last hierarchy to current hierarchy *******************/
/*****************************************************************************/

void Hie_SetHierarchyFromUsrLastHierarchy (void)
  {
   /***** Initialize all codes to -1 *****/
   Hie_ResetHierarchy ();

   /***** Copy last hierarchy scope and code to current hierarchy *****/
   switch (Gbl.Usrs.Me.UsrLast.LastHie.Scope)
     {
      case HieLvl_CTY:	// Country
         Gbl.Hierarchy.Cty.CtyCod = Gbl.Usrs.Me.UsrLast.LastHie.Cod;
	 break;
      case HieLvl_INS:	// Institution
         Gbl.Hierarchy.Ins.InsCod = Gbl.Usrs.Me.UsrLast.LastHie.Cod;
	 break;
      case HieLvl_CTR:	// Center
         Gbl.Hierarchy.Ctr.CtrCod = Gbl.Usrs.Me.UsrLast.LastHie.Cod;
	 break;
      case HieLvl_DEG:	// Degree
         Gbl.Hierarchy.Deg.DegCod = Gbl.Usrs.Me.UsrLast.LastHie.Cod;
	 break;
      case HieLvl_CRS:	// Course
         Gbl.Hierarchy.Crs.CrsCod = Gbl.Usrs.Me.UsrLast.LastHie.Cod;
	 break;
      default:
	 break;
     }

   /****** Initialize again current course, degree, center... ******/
   Hie_InitHierarchy ();
  }

/*****************************************************************************/
/**** Initialize current country, institution, center, degree and course *****/
/*****************************************************************************/

void Hie_InitHierarchy (void)
  {
   /***** If course code is available, get course data *****/
   if (Gbl.Hierarchy.Crs.CrsCod > 0)
     {
      if (Crs_GetDataOfCourseByCod (&Gbl.Hierarchy.Crs))	// Course found
         Gbl.Hierarchy.Deg.DegCod = Gbl.Hierarchy.Crs.DegCod;
      else
         Hie_ResetHierarchy ();
     }

   /***** If degree code is available, get degree data *****/
   if (Gbl.Hierarchy.Deg.DegCod > 0)
     {
      if (Deg_GetDataOfDegreeByCod (&Gbl.Hierarchy.Deg))	// Degree found
	{
	 Gbl.Hierarchy.Ctr.CtrCod = Gbl.Hierarchy.Deg.CtrCod;
         Gbl.Hierarchy.Ins.InsCod = Deg_DB_GetInsCodOfDegreeByCod (Gbl.Hierarchy.Deg.DegCod);
	}
      else
         Hie_ResetHierarchy ();
     }

   /***** If center code is available, get center data *****/
   if (Gbl.Hierarchy.Ctr.CtrCod > 0)
     {
      if (Ctr_GetDataOfCenterByCod (&Gbl.Hierarchy.Ctr))	// Center found
         Gbl.Hierarchy.Ins.InsCod = Gbl.Hierarchy.Ctr.InsCod;
      else
         Hie_ResetHierarchy ();
     }

   /***** If institution code is available, get institution data *****/
   if (Gbl.Hierarchy.Ins.InsCod > 0)
     {
      if (Ins_GetDataOfInstitByCod (&Gbl.Hierarchy.Ins))	// Institution found
	 Gbl.Hierarchy.Cty.CtyCod = Gbl.Hierarchy.Ins.CtyCod;
      else
         Hie_ResetHierarchy ();
     }

   /***** If country code is available, get country data *****/
   if (Gbl.Hierarchy.Cty.CtyCod > 0)
      if (!Cty_GetDataOfCountryByCod (&Gbl.Hierarchy.Cty))		// Country not found
         Hie_ResetHierarchy ();

   /***** Set current hierarchy level and code
          depending on course code, degree code, etc. *****/
   if      (Gbl.Hierarchy.Crs.CrsCod > 0)	// Course selected
     {
      Gbl.Hierarchy.Level = HieLvl_CRS;
      Gbl.Hierarchy.Cod = Gbl.Hierarchy.Crs.CrsCod;
     }
   else if (Gbl.Hierarchy.Deg.DegCod > 0)	// Degree selected
     {
      Gbl.Hierarchy.Level = HieLvl_DEG;
      Gbl.Hierarchy.Cod = Gbl.Hierarchy.Deg.DegCod;
     }
   else if (Gbl.Hierarchy.Ctr.CtrCod > 0)	// Center selected
     {
      Gbl.Hierarchy.Level = HieLvl_CTR;
      Gbl.Hierarchy.Cod = Gbl.Hierarchy.Ctr.CtrCod;
     }
   else if (Gbl.Hierarchy.Ins.InsCod > 0)	// Institution selected
     {
      Gbl.Hierarchy.Level = HieLvl_INS;
      Gbl.Hierarchy.Cod = Gbl.Hierarchy.Ins.InsCod;
     }
   else if (Gbl.Hierarchy.Cty.CtyCod > 0)	// Country selected
     {
      Gbl.Hierarchy.Level = HieLvl_CTY;
      Gbl.Hierarchy.Cod = Gbl.Hierarchy.Cty.CtyCod;
     }
   else
     {
      Gbl.Hierarchy.Level = HieLvl_SYS;
      Gbl.Hierarchy.Cod = -1L;
     }

   /***** Initialize paths *****/
   if (Gbl.Hierarchy.Level == HieLvl_CRS)	// Course selected
     {
      /***** Paths of course directories *****/
      snprintf (Gbl.Crs.PathPriv,sizeof (Gbl.Crs.PathPriv),"%s/%ld",
	        Cfg_PATH_CRS_PRIVATE,Gbl.Hierarchy.Crs.CrsCod);
      snprintf (Gbl.Crs.PathRelPubl,sizeof (Gbl.Crs.PathRelPubl),"%s/%ld",
	        Cfg_PATH_CRS_PUBLIC,Gbl.Hierarchy.Crs.CrsCod);
      snprintf (Gbl.Crs.PathURLPubl,sizeof (Gbl.Crs.PathURLPubl),"%s/%ld",
	        Cfg_URL_CRS_PUBLIC,Gbl.Hierarchy.Crs.CrsCod);

      /***** If any of the course directories does not exist, create it *****/
      if (!Fil_CheckIfPathExists (Gbl.Crs.PathPriv))
	 Fil_CreateDirIfNotExists (Gbl.Crs.PathPriv);
      if (!Fil_CheckIfPathExists (Gbl.Crs.PathRelPubl))
	 Fil_CreateDirIfNotExists (Gbl.Crs.PathRelPubl);

      /***** Count number of groups in current course
             (used in some actions) *****/
      Gbl.Crs.Grps.NumGrps = Grp_DB_CountNumGrpsInCurrentCrs ();
     }
  }

/*****************************************************************************/
/******* Reset current country, institution, center, degree and course *******/
/*****************************************************************************/

void Hie_ResetHierarchy (void)
  {
   /***** Country *****/
   Gbl.Hierarchy.Cty.CtyCod = -1L;

   /***** Institution *****/
   Gbl.Hierarchy.Ins.InsCod = -1L;

   /***** Center *****/
   Gbl.Hierarchy.Ctr.CtrCod = -1L;
   Gbl.Hierarchy.Ctr.InsCod = -1L;
   Gbl.Hierarchy.Ctr.PlcCod = -1L;

   /***** Degree *****/
   Gbl.Hierarchy.Deg.DegCod = -1L;

   /***** Course *****/
   Gbl.Hierarchy.Crs.CrsCod = -1L;

   /***** Hierarchy level and code *****/
   Gbl.Hierarchy.Level = HieLvl_UNK;
   Gbl.Hierarchy.Cod   = -1L;
  }

/*****************************************************************************/
/***** Write institutions, centers and degrees administrated by an admin *****/
/*****************************************************************************/

void Hie_GetAndWriteInsCtrDegAdminBy (long UsrCod,unsigned ColSpan)
  {
   extern const char *Txt_all_degrees;
   MYSQL_RES *mysql_res;
   MYSQL_ROW row;
   unsigned NumRow;
   unsigned NumRows;
   struct Hie_Hierarchy Hie;

   /***** Get institutions, centers, degrees admin by user from database *****/
   NumRows = Hie_DB_GetInsCtrDegAdminBy (&mysql_res,UsrCod);

   /***** Get the list of degrees *****/
   for (NumRow  = 1;
	NumRow <= NumRows;
	NumRow++)
     {
      HTM_TR_Begin (NULL);

	 /***** Indent *****/
	 HTM_TD_Begin ("class=\"RT COLOR%u\"",Gbl.RowEvenOdd);
	    Ico_PutIcon (NumRow == NumRows ? "subend20x20.gif" :
					     "submid20x20.gif",
			 "","ICO25x25");
	 HTM_TD_End ();

	 /***** Write institution, center, degree *****/
	 HTM_TD_Begin ("colspan=\"%u\" class=\"DAT_SMALL_NOBR LT COLOR%u\"",
		       ColSpan - 1,Gbl.RowEvenOdd);

	    /* Get next institution, center, degree */
	    row = mysql_fetch_row (mysql_res);

	    /* Get scope */
	    switch (Sco_GetScopeFromUnsignedStr (row[0]))
	      {
	       case HieLvl_SYS:	// System
		  Ico_PutIcon ("swad64x64.png",Txt_all_degrees,"ICO16x16");
		  HTM_TxtF ("&nbsp;%s",Txt_all_degrees);
		  break;
	       case HieLvl_INS:	// Institution
		  Hie.Ins.InsCod = Str_ConvertStrCodToLongCod (row[1]);
		  if (Hie.Ins.InsCod > 0)
		    {
		     /* Get data of institution */
		     Ins_GetDataOfInstitByCod (&Hie.Ins);

		     /* Write institution logo and name */
		     Ins_DrawInstitutionLogoAndNameWithLink (&Hie.Ins,ActSeeInsInf,
							     "BT_LINK DAT_SMALL_NOBR","LT");
		    }
		  break;
	       case HieLvl_CTR:	// Center
		  Hie.Ctr.CtrCod = Str_ConvertStrCodToLongCod (row[1]);
		  if (Hie.Ctr.CtrCod > 0)
		    {
		     /* Get data of center */
		     Ctr_GetDataOfCenterByCod (&Hie.Ctr);

		     /* Write center logo and name */
		     Ctr_DrawCenterLogoAndNameWithLink (&Hie.Ctr,ActSeeCtrInf,
							"BT_LINK DAT_SMALL_NOBR","LT");
		    }
		  break;
	       case HieLvl_DEG:	// Degree
		  Hie.Deg.DegCod = Str_ConvertStrCodToLongCod (row[1]);
		  if (Hie.Deg.DegCod > 0)
		    {
		     /* Get data of degree */
		     Deg_GetDataOfDegreeByCod (&Hie.Deg);

		     /* Write degree logo and name */
		     Deg_DrawDegreeLogoAndNameWithLink (&Hie.Deg,ActSeeDegInf,
							"BT_LINK DAT_SMALL_NOBR","LT");
		    }
		  break;
	       default:	// There are no administrators in other scopes
		  Err_WrongScopeExit ();
		  break;
	      }
	 HTM_TD_End ();

      HTM_TR_End ();
     }

   /***** Free structure that stores the query result *****/
   DB_FreeMySQLResult (&mysql_res);
  }

/*****************************************************************************/
/********************* Build a "Go to <where>" message ***********************/
/*****************************************************************************/
// Where is a hierarchy member (country, institution, center, degree or course
// Hie_FreeGoToMsg() must be called after calling this function

char *Hie_BuildGoToMsg (const char *Where)
  {
   extern const char *Txt_Go_to_X;

   return Str_BuildStringStr (Txt_Go_to_X,Where);
  }

void Hie_FreeGoToMsg (void)
  {
   Str_FreeString ();
  }

/*****************************************************************************/
/******************* Get number of countries with users **********************/
/*****************************************************************************/

void Hie_DB_BuildSubquery (char SubQuery[128],HieLvl_Level_t Scope,long Cod)
  {
   static const char *Format[HieLvl_NUM_LEVELS] =
     {
      [HieLvl_UNK] = "",				// Unknown
      [HieLvl_SYS] = "",				// System
      [HieLvl_CTY] = "ins_instits.CtyCod=%ld AND ",	// Country
      [HieLvl_INS] = "ctr_centers.InsCod=%ld AND ",	// Institution
      [HieLvl_CTR] = "deg_degrees.CtrCod=%ld AND ",	// Center
      [HieLvl_DEG] = "crs_courses.DegCod=%ld AND ",	// Degree
      [HieLvl_CRS] = "crs_users.CrsCod=%ld AND ",	// Course
     };

   if (Cod > 0)
      sprintf (SubQuery,Format[Scope],Cod);
   else
      SubQuery[0] = '\0';
  }