/* This is part of the netCDF package. Copyright 2018 University
   Corporation for Atmospheric Research/Unidata See COPYRIGHT file for
   conditions of use. See www.unidata.ucar.edu for more info.

   Create a test file with default fill values for variables of each type.

   $Id$
*/

#include <nc_tests.h>
#include "err_macros.h"
#include <stdlib.h>
#include <stdio.h>
#include <netcdf.h>

#define FILE_NAME "tst_fills2.nc"

int
main(int argc, char **argv)
{			/* create tst_classic_fills.nc */
   printf("\n*** Testing fill values.\n");
   printf("*** testing read of string record var with no data...");
   {
#define STRING_VAR_NAME "blood_toil_tears_sweat"
#define NDIMS_STRING 1
#define DATA_START 1 /* Real data here. */

      int  ncid, varid, dimid, varid_in;
      const char *data_out[1] = {
	 "We have before us an ordeal of the most grievous kind. We have before "
	 "us many, many long months of struggle and of suffering. You ask, what "
	 "is our policy? I can say: It is to wage war, by sea, land and air, "
	 "with all our might and with all the strength that God can give us; to "
	 "wage war against a monstrous tyranny, never surpassed in the dark, "
	 "lamentable catalogue of human crime. That is our policy. You ask, what "
	 "is our aim? "
	 "I can answer in one word: It is victory, victory at all costs, victory "
	 "in spite of all terror, victory, however long and hard the road may "
	 "be; for without victory, there is no survival."};
      char *data_in;
      size_t index = DATA_START;

      /* Create file with a 1D string var. Set its fill value to the
       * empty string. */
      if (nc_create(FILE_NAME, NC_NETCDF4, &ncid)) ERR;
      if (nc_def_dim(ncid, "sentence", NC_UNLIMITED, &dimid)) ERR;
      if (nc_def_var(ncid, STRING_VAR_NAME, NC_STRING, NDIMS_STRING,
		     &dimid, &varid)) ERR;

      /* Check it out. */
      if (nc_inq_varid(ncid, STRING_VAR_NAME, &varid_in)) ERR;

      /* Write one string, leaving some blank records which will then
       * get the fill value. */
      if (nc_put_var1_string(ncid, varid_in, &index, data_out)) ERR;

      /* Get all the data from the variable. */
      if (nc_get_var1_string(ncid, varid_in, &index, &data_in)) ERR;
      if (strcmp(data_in, data_out[0])) ERR;
      free(data_in);

      if (nc_close(ncid)) ERR;

      /* Now re-open file, read data, and check values again. */
      if (nc_open(FILE_NAME, NC_NOWRITE, &ncid)) ERR;

      data_in = NULL;
      if (nc_get_var1_string(ncid, varid_in, &index, &data_in)) ERR;
      if (strcmp(data_in, data_out[0])) ERR;
      free(data_in);

      if (nc_close(ncid)) ERR;

   }
   SUMMARIZE_ERR;
   printf("*** testing read of string record var w/fill-value with no data...");
   {
#undef STRING_VAR_NAME
#define STRING_VAR_NAME "I_Have_A_Dream"
#undef NDIMS_STRING
#define NDIMS_STRING 1
#define FILLVALUE_LEN 1 /* There is 1 string, the empty one. */
#undef DATA_START
#define DATA_START 2 /* Real data here. */

      int  ncid, varid, dimid, varid_in;
      const char *missing_val[FILLVALUE_LEN] = {""};
      const char *missing_val_in[FILLVALUE_LEN];
      const char *data_out[1] = {
	 "With this faith, we will be able to hew out of the mountain of "
	 "despair a stone of hope. With this faith, we will be able to "
	 "transform the jangling discords of our nation into a beautiful "
	 "symphony of brotherhood. With this faith, we will be able to work "
	 "together, to pray together, to struggle together, to go to jail "
	 "together, to stand up for freedom together, knowing that we will "
	 "be free one day."};
      char *data_in;
      size_t index = DATA_START;

      /* Create file with a 1D string var. Set its fill value to the
       * empty string. */
      if (nc_create(FILE_NAME, NC_NETCDF4, &ncid)) ERR;
      if (nc_def_dim(ncid, "sentence", NC_UNLIMITED, &dimid)) ERR;
      if (nc_def_var(ncid, STRING_VAR_NAME, NC_STRING, NDIMS_STRING,
		     &dimid, &varid)) ERR;
      if (nc_put_att_string(ncid, varid, "_FillValue", FILLVALUE_LEN,
	missing_val)) ERR;

      /* Check it out. */
      if (nc_inq_varid(ncid, STRING_VAR_NAME, &varid_in)) ERR;
      if (nc_get_att_string(ncid, varid_in, "_FillValue",
      			    (char **)missing_val_in)) ERR;
      if (strcmp(missing_val[0], missing_val_in[0])) ERR;
      if (nc_free_string(FILLVALUE_LEN, (char **)missing_val_in)) ERR;

      /* Write one string, leaving some blank records which will then
       * get the fill value. */
      if (nc_put_var1_string(ncid, varid_in, &index, data_out)) ERR;

      /* Get all the data from the variable. */
      index = 0;
      data_in = NULL;
      if (nc_get_var1_string(ncid, varid_in, &index, &data_in)) ERR;
      if (strcmp(data_in, missing_val[0])) ERR;
      free(data_in);
      index = 1;
      data_in = NULL;
      if (nc_get_var1_string(ncid, varid_in, &index, &data_in)) ERR;
      if (strcmp(data_in, missing_val[0])) ERR;
      free(data_in);
      index = DATA_START;
      data_in = NULL;
      if (nc_get_var1_string(ncid, varid_in, &index, &data_in)) ERR;
      if (strcmp(data_in, data_out[0])) ERR;
      free(data_in);

      if (nc_close(ncid)) ERR;

      /* Now re-open file, read data, and check values again. */
      if (nc_open(FILE_NAME, NC_NOWRITE, &ncid)) ERR;
      if (nc_inq_varid(ncid, STRING_VAR_NAME, &varid_in)) ERR;
      if (nc_get_att_string(ncid, varid_in, "_FillValue",
      			    (char **)missing_val_in)) ERR;
      if (strcmp(missing_val[0], missing_val_in[0])) ERR;
      if (nc_free_string(FILLVALUE_LEN, (char **)missing_val_in)) ERR;

      /* Get all the data from the variable. */
/* As of HDF5-1.8.12, reading from an unwritten chunk in a dataset with a
 *      variable-length datatype and a fill-value set will error, instead
 *      of retrieving the fill-value. -QAK
 */
#ifdef NOT_YET
      index = 0;
      data_in = NULL;
      if (nc_get_var1_string(ncid, varid_in, &index, &data_in)) ERR;
      if (strcmp(data_in, missing_val[0])) ERR;
      free(data_in);
      index = 1;
      data_in = NULL;
      if (nc_get_var1_string(ncid, varid_in, &index, &data_in)) ERR;
      if (strcmp(data_in, missing_val[0])) ERR;
      free(data_in);
#endif /* NOT_YET */
      index = DATA_START;
      data_in = NULL;
      if (nc_get_var1_string(ncid, varid_in, &index, &data_in)) ERR;
      if (strcmp(data_in, data_out[0])) ERR;
      free(data_in);

      if (nc_close(ncid)) ERR;

   }
   SUMMARIZE_ERR;

   printf("*** testing NULL fill values of a string var...");
   {
#undef STRING_VAR_NAME
#define STRING_VAR_NAME "The_String"
#define NDIMS_STRING 1
#define FILLVALUE_LEN 1 /* There is 1 string, the empty one. */
#define DATA_START 2 /* Real data here. */

      int  ncid, varid, dimid, varid_in;
      const char *missing_val[FILLVALUE_LEN] = {NULL};
      const char *missing_val_in[FILLVALUE_LEN];
      const char *data_out[1] = {"The evil that men do lives after them; "
				 "the good is oft interred with their bones."};
      char **data_in;
      size_t index = DATA_START;
      int i;

      /* Create file with a 1D string var. Set its fill value to the
       * empty string. */
      if (nc_create(FILE_NAME, NC_NETCDF4, &ncid)) ERR;
      if (nc_def_dim(ncid, "rec", NC_UNLIMITED, &dimid)) ERR;
      if (nc_def_var(ncid, STRING_VAR_NAME, NC_STRING, NDIMS_STRING, &dimid, &varid)) ERR;
      if (nc_put_att_string(ncid, varid, "_FillValue", FILLVALUE_LEN, missing_val)) ERR;

      /* Check it out. */
      if (nc_inq_varid(ncid, STRING_VAR_NAME, &varid_in)) ERR;
      if (nc_get_att_string(ncid, varid_in, "_FillValue", (char **)missing_val_in)) ERR;
      if (missing_val[0] !=  missing_val_in[0]) ERR;

      /* Write one string, leaving some blank records which will then
       * get the fill value. */
      if (nc_put_var1_string(ncid, varid_in, &index, data_out)) ERR;

      /* Get all the data from the variable. */
      if (!(data_in = malloc((DATA_START + 1) * sizeof(char *)))) ERR;
      if (nc_get_var_string(ncid, varid_in, data_in)) ERR;

      /* First there should be fill values, then the data value we
       * wrote. */
      for (i = 0; i < DATA_START; i++)
	 if (NULL != data_in[i]) ERR;
      if (strcmp(data_in[DATA_START], data_out[0])) ERR;
      if (nc_free_string(DATA_START + 1, data_in)) ERR;

      /* Close everything up */
      if (nc_close(ncid)) ERR;

      /* Now re-open file, read data, and check values again. */
      if (nc_open(FILE_NAME, NC_NOWRITE, &ncid)) ERR;
      if (nc_inq_varid(ncid, STRING_VAR_NAME, &varid_in)) ERR;
      if (nc_get_att_string(ncid, varid_in, "_FillValue", (char **)missing_val_in)) ERR;
      if (NULL != missing_val_in[0]) ERR;
      if (nc_free_string(FILLVALUE_LEN, (char **)missing_val_in)) ERR;

      /* Get all the data from the variable. */
      if (nc_get_var_string(ncid, varid_in, data_in)) ERR;

      /* First there should be fill values, then the data value we
       * wrote. */
      for (i = 0; i < DATA_START; i++)
	 if (NULL != data_in[i]) ERR;
      if (strcmp(data_in[DATA_START], data_out[0])) ERR;
      if (nc_free_string(DATA_START + 1, data_in)) ERR;

      /* Close everything up */
      if (nc_close(ncid)) ERR;
      free(data_in);
   }
   SUMMARIZE_ERR;

   printf("*** testing non-empty fill values of a string var...");
   {
#define STRING_VAR_NAME2 "CASSIUS"
#define FILLVALUE_LEN2 1 /* There is 1 string in the fillvalue array. */
#define DATA_START2 9 /* Real data starts here. */

      int  ncid, varid, dimid, varid_in;
      const char *missing_val[FILLVALUE_LEN2] = {"I know that virtue to be in you, Brutus"};
      const char *missing_val_in[FILLVALUE_LEN2];
      const char *data_out[1] = {"The evil that men do lives after them; "
				 "the good is oft interred with their bones."};
      char **data_in;
      size_t index = DATA_START2;
      int i;

      /* Create file with a 1D string var. Set its fill value to the
       * a non-empty string. */
      if (nc_create(FILE_NAME, NC_NETCDF4, &ncid)) ERR;
      if (nc_def_dim(ncid, "rec", NC_UNLIMITED, &dimid)) ERR;
      if (nc_def_var(ncid, STRING_VAR_NAME2, NC_STRING, NDIMS_STRING, &dimid, &varid)) ERR;
      if (nc_put_att_string(ncid, varid, "_FillValue", FILLVALUE_LEN2, missing_val)) ERR;

      /* Check it out. */
      if (nc_inq_varid(ncid, STRING_VAR_NAME2, &varid_in)) ERR;
      if (nc_get_att_string(ncid, varid_in, "_FillValue", (char **)missing_val_in)) ERR;
      if (strcmp(missing_val[0], missing_val_in[0])) ERR;
      if (nc_free_string(FILLVALUE_LEN2, (char **)missing_val_in)) ERR;

      /* Write one string, leaving some blank records which will then
       * get the fill value. */
      if (nc_put_var1_string(ncid, varid_in, &index, data_out)) ERR;

      /* Get all the data from the variable. */
      if (!(data_in = malloc((DATA_START2 + 1) * sizeof(char *)))) ERR;
      if (nc_get_var_string(ncid, varid_in, data_in)) ERR;

      /* First there should be fill values, then the data value we
       * wrote. */
      for (i = 0; i < DATA_START2; i++)
	 if (strcmp(data_in[i], missing_val[0])) ERR;
      if (strcmp(data_in[DATA_START2], data_out[0])) ERR;
      if (nc_free_string(DATA_START2 + 1, data_in)) ERR;

      /* Close everything up. */
      if (nc_close(ncid)) ERR;

      /* Now re-open file, read data, and check values again. */
      if (nc_open(FILE_NAME, NC_NOWRITE, &ncid)) ERR;
      if (nc_inq_varid(ncid, STRING_VAR_NAME2, &varid_in)) ERR;
      if (nc_get_att_string(ncid, varid_in, "_FillValue", (char **)missing_val_in)) ERR;
      if (strcmp(missing_val[0], missing_val_in[0])) ERR;
      if (nc_free_string(FILLVALUE_LEN2, (char **)missing_val_in)) ERR;

/* As of HDF5-1.8.12, reading from an unwritten chunk in a dataset with a
 *      variable-length datatype and a fill-value set will error, instead
 *      of retrieving the fill-value. -QAK
 */
#ifdef NOT_YET
      /* Get all the data from the variable. */
      if (nc_get_var_string(ncid, varid_in, data_in)) ERR;

      /* First there should be fill values, then the data value we
       * wrote. */
      for (i = 0; i < DATA_START2; i++)
	 if (strcmp(data_in[i], missing_val[0])) ERR;
      if (strcmp(data_in[DATA_START2], data_out[0])) ERR;
      if (nc_free_string(DATA_START + 1, data_in)) ERR;
#endif /* NOT_YET */

      /* Close everything up. */
      if (nc_close(ncid)) ERR;
      free(data_in);
   }
   SUMMARIZE_ERR;

   printf("*** testing read of string record var with no data...");
   {
#undef STRING_VAR_NAME
#define STRING_VAR_NAME "Moon_Is_A_Harsh_Mistress"
#define NDIMS_STRING 1
#define FILLVALUE_LEN 1 /* There is 1 string, the empty one. */
#define DATA_START 2 /* Real data here. */

      int  ncid, varid, dimid, varid_in;
      const char *missing_val[FILLVALUE_LEN] = {""};
      char *missing_val_in;

      /* Create file with a 1D string var. Set its fill value to the
       * empty string. */
      if (nc_create(FILE_NAME, NC_NETCDF4, &ncid)) ERR;
      if (nc_def_dim(ncid, "Lunar_Years", NC_UNLIMITED, &dimid)) ERR;
      if (nc_def_var(ncid, STRING_VAR_NAME, NC_STRING, NDIMS_STRING,
		     &dimid, &varid)) ERR;
      if (nc_put_att_string(ncid, varid, "_FillValue", FILLVALUE_LEN,
			    missing_val)) ERR;

      /* Check it out. */
      if (nc_inq_varid(ncid, STRING_VAR_NAME, &varid_in)) ERR;
      if (nc_get_att_string(ncid, varid_in, "_FillValue", &missing_val_in)) ERR;
      if (strcmp(missing_val[0], missing_val_in)) ERR;
      if (nc_free_string(FILLVALUE_LEN, &missing_val_in)) ERR;

      /* Get all the data from the variable. There is none! */
      if (nc_get_var_string(ncid, varid_in, NULL)) ERR;

      /* Close file. */
      if (nc_close(ncid)) ERR;

      /* Now re-open file, and check again. */
      if (nc_open(FILE_NAME, NC_NOWRITE, &ncid)) ERR;
      if (nc_inq_varid(ncid, STRING_VAR_NAME, &varid_in)) ERR;
      if (nc_get_att_string(ncid, varid_in, "_FillValue", &missing_val_in)) ERR;
      if (strcmp(missing_val[0], missing_val_in)) ERR;
      if (nc_free_string(FILLVALUE_LEN, &missing_val_in)) ERR;

      /* Get all the data from the variable. There is none! */
      if (nc_get_var_string(ncid, varid_in, NULL)) ERR;

      /* Close file. */
      if (nc_close(ncid)) ERR;
   }
   SUMMARIZE_ERR;

   printf("*** Testing fix for netCDF-4 fill-value bug...");
   {
      int  ncid, varid, dimids[1];
      double fillval = -9999;

      /* Test case for NCF-187 bug, thanks to Alexander Barth for fix */
      if (nc_create(FILE_NAME, NC_NETCDF4 | NC_CLASSIC_MODEL, &ncid)) ERR;
      if (nc_def_dim(ncid, "x", 182, &dimids[0])) ERR;
      if (nc_def_var(ncid, "u_obs", NC_FLOAT, 1, dimids, &varid)) ERR;
      if (nc_put_att_double (ncid, varid, "_FillValue", NC_FLOAT, 1, &fillval)) ERR;
      if (nc_close(ncid)) ERR;
      SUMMARIZE_ERR;
   }

   FINAL_RESULTS;
}