#include <med.h>
#define MESGERR 1
#include <med_utils.h>
#include <string.h>
#include <med.h>
#define MESGERR 1
#include <med_utils.h>
#include <string.h>
int main (int argc, char **argv) {
  med_idt fid,mfid,sfid,cmfid;
  med_idt nfield, i, j;
  char meshname[MED_NAME_SIZE+1]="";
  med_bool localmesh;
  char fieldname[MED_NAME_SIZE+1]="";
  med_field_type fieldtype;
  char *componentname = NULL;
  char *componentunit = NULL;
  char dtunit[MED_SNAME_SIZE+1]="";
  med_float *values = NULL;
  med_int nstep, nvalues;
  med_int ncomponent;
  med_int csit, numit, numdt, it;
  med_float dt;
  med_geometry_type *geotypes=NULL, geotype;
  med_int nmodels;
  med_int nprofile, pit, profilesize;
  char profilename[MED_NAME_SIZE+1]="";
  med_int nintegrationpoint;
  char localizationname[MED_NAME_SIZE+1]="";
  int k;
  char elementname[MED_NAME_SIZE+1]="";
  char supportmeshname[MED_NAME_SIZE+1]="";
  med_entity_type entitype;
  med_int elementdim;
  med_int nnode,ncell;
  med_geometry_type geocelltype;
  med_bool anyprofile=0;
  med_int nconstatt, *nvaratt=NULL;
  med_bool coordinatechangement;
  med_bool geotransformation;
  int ret=-1;
  
  fid = MEDfileOpen("UsesCase_MEDfield_17.med",MED_ACC_RDWR);
  if (fid < 0) {
    MESSAGE("ERROR : open file ...");
    return -1;
  }
  if (( mfid=MEDfileObjectsMount(fid,  "UsesCase_MEDstructElement_1.med",MED_MESH_SUPPORT)) < 0 ) {
    MESSAGE("ERROR : file mounting ...");
    return -1;
  }
  if (( sfid=MEDfileObjectsMount(fid,  "UsesCase_MEDstructElement_1.med",MED_ELSTRUCT)) < 0 ) {
    MESSAGE("ERROR : file mounting ...");
    return -1;
  }
  if (( cmfid=MEDfileObjectsMount(fid,  "UsesCase_MEDstructElement_1.med",MED_MESH)) < 0 ) {
    MESSAGE("ERROR : file mounting ...");
    return -1;
  }
  
  if ((nfield = MEDnField(fid)) < 0) {
    MESSAGE("ERROR : How many fields in the file ...");
    return -1;
  }
  
  for (i=0; i<nfield; i++) {
    if ((ncomponent = MEDfieldnComponent(fid,i+1)) < 0) {
      MESSAGE("ERROR : number of field component ...");
      return -1;
    }
    
    if ((componentname = (char *) malloc(ncomponent*MED_SNAME_SIZE+1)) == NULL) {
      MESSAGE("ERROR : memory allocation ...");
      return -1;
    }
    if ((componentunit = (char *) malloc(ncomponent*MED_SNAME_SIZE+1)) == NULL) {
      MESSAGE("ERROR : memory allocation ...");
      return -1;
    }
    if (MEDfieldInfo(fid, i+1, fieldname, meshname, &localmesh, &fieldtype,
                     componentname, componentunit, dtunit, &nstep) < 0) {
      MESSAGE("ERROR : Field info ...");
      free(componentname);
      free(componentunit);
      return -1;
    }
    free(componentname);
    free(componentunit);
    
    if ((nmodels = MEDmeshnEntity(fid, meshname, MED_NO_DT, MED_NO_IT, MED_STRUCT_ELEMENT, MED_GEO_ALL,
                                  MED_UNDEF_DATATYPE, MED_NO_CMODE,&coordinatechangement,
                                  &geotransformation)) < 0) {
      MESSAGE("ERROR : number of nodes ...");
      return -1;
    }
    geotypes = (med_geometry_type *) malloc(sizeof(med_geometry_type)*nmodels);
    nvaratt = (med_int *) malloc(sizeof(med_int)*nmodels);
    
    for (it=0; it<nmodels; it++) {
      if (MEDstructElementInfo(mfid, it+1, elementname, geotypes+it, &elementdim,
                               supportmeshname, &entitype, &nnode, &ncell,
                               &geocelltype, &nconstatt, &anyprofile, nvaratt+it) < 0) {
        MESSAGE("ERROR : struct element models information ...");
        return -1;
      }
    }
    
 
    for (csit=0; csit<nstep; csit++) {
      if (MEDfieldComputingStepInfo(fid, fieldname, csit+1, &numdt, &numit, &dt) < 0) {
        MESSAGE("ERROR : Computing step info ...");
        return -1;
      }
      
      for (it=0; it<nmodels; it++) {
        geotype = *(geotypes+it);
        
        
        if ((nprofile = MEDfieldnProfile(fid, fieldname, numdt, numit, MED_STRUCT_ELEMENT, geotype,
                                         profilename, localizationname)) < 0) {
          MESSAGE("ERROR : read number of profile ");
          return -1;
        }
        
        for (pit=0; pit<nprofile; pit++) {
          
          if ((nvalues = MEDfieldnValueWithProfile(fid, fieldname, numdt, numit, MED_STRUCT_ELEMENT, geotype,
                                                   pit+1, MED_COMPACT_PFLMODE, profilename, &profilesize,
                                                   localizationname, &nintegrationpoint)) < 0) {
            MESSAGE("ERROR : read number of values with a profile ...");
            return -1;
          } 
          
          if (nvalues) {
            if ((values = (med_float *) malloc(sizeof(med_float)*nvalues*ncomponent*nintegrationpoint)) == NULL) {
              MESSAGE("ERROR : memory allocation ...");
              return -1;
            }
            if (MEDfieldValueWithProfileRd(fid, fieldname, numdt, numit, MED_STRUCT_ELEMENT, geotype,
                                           MED_COMPACT_PFLMODE, profilename,
                                           MED_FULL_INTERLACE, MED_ALL_CONSTITUENT, 
                                           (unsigned char*) values) < 0) {
              MESSAGE("ERROR : read fields values for cells ..."); 
              free(values);
              return -1; 
            }  
            free(values);
          }
        }
      }
    }
    ret=0;
  ERROR:
    if (nvaratt)
      free(nvaratt);
    if (geotypes)
      free(geotypes);
  }
  if ( MEDfileObjectsUnmount(fid, mfid, MED_MESH_SUPPORT) < 0 ) {
    MESSAGE("ERROR : file unmounting ...");
    ret=-1;
  }
  if ( MEDfileObjectsUnmount(fid, sfid, MED_ELSTRUCT) < 0 ) {
    MESSAGE("ERROR : file unmounting ...");
    ret=-1;
  }
  if ( MEDfileObjectsUnmount(fid, cmfid, MED_MESH) < 0 ) {
    MESSAGE("ERROR : file unmounting ...");
    ret=-1;
  }
  
  if (MEDfileClose(fid) < 0) {
    MESSAGE("ERROR : close file ...");             
    ret=-1; 
  } 
  
  return ret;
}