/*
 * Copyright 2005-2019 ECMWF.
 *
 * This software is licensed under the terms of the Apache Licence Version 2.0
 * which can be obtained at http://www.apache.org/licenses/LICENSE-2.0.
 *
 * In applying this licence, ECMWF does not waive the privileges and immunities granted to it by
 * virtue of its status as an intergovernmental organisation nor does it submit to any jurisdiction.
 */

/*
 * C Implementation: grib_copy
 *
 */

#include "grib_tools.h"

const char* grib_tool_description =
    "Copies the content of GRIB files printing"
    " values of some keys."
    "\n\tIf the name of the output_grib_file contains a key enclosed in square brackets, its value will be used.";
const char* grib_tool_name  = "grib_copy";
const char* grib_tool_usage = "[options] grib_file grib_file ... output_grib_file";

grib_option grib_options[] = {
    /*  {id, args, help}, on, command_line, value */
    { "f", 0, 0, 0, 1, 0 },
    { "c", 0, 0, 1, 0, 0 },
    { "r", 0, 0, 0, 1, 0 },
    { "q", 0, 0, 1, 0, 0 },
    { "p:", 0, 0, 1, 1, 0 },
    { "P:", 0, 0, 0, 1, 0 },
    { "w:", "key[:{s|d|i}]{=|!=}value,key[:{s|d|i}]=value,...",
      "\n\t\tWhere clause."
      "\n\t\tOnly GRIB messages matching the key/value constraints are copied to the output_grib_file."
      "\n\t\tA valid constraint is of type key=value or key!=value."
      "\n\t\tFor each key a string (key:s), a "
      "double (key:d) or an integer (key:i)\n\t\ttype can be defined. Default type is string."
      "\n\t\tIn the value you can also use the forward-slash character '/' to specify an OR condition (i.e. a logical disjunction)"
      "\n\t\tNote: only one -w clause is allowed.\n",
      0, 1, 0 },
    { "B:", 0, 0, 0, 1, 0 },
    /*{"s:",0,0,0,1,0},*/
    { "V", 0, 0, 0, 1, 0 },
    { "W:", 0, 0, 0, 1, 0 },
    { "M", 0, 0, 0, 1, 0 },
    { "U", 0, 0, 1, 0, 0 },
    { "H", 0, 0, 1, 0, 0 },
    { "T:", 0, 0, 0, 1, 0 },
    { "S", 0, 0, 1, 0, 0 },
    { "g", 0, 0, 0, 1, 0 },
    { "G", 0, 0, 0, 1, 0 },
    { "7", 0, 0, 0, 1, 0 },
    { "X:", 0, 0, 0, 1, 0 },
    { "v", 0, 0, 0, 1, 0 }
};

int grib_options_count = sizeof(grib_options) / sizeof(grib_option);

int main(int argc, char* argv[])
{
    int ret = grib_tool(argc, argv);
    return ret;
}

int grib_tool_before_getopt(grib_runtime_options* options)
{
    return 0;
}

int grib_tool_init(grib_runtime_options* options)
{
#if 0
    if (options->outfile && options->outfile->name) {
        options->outfile->file = fopen(options->outfile->name,"w");
        if(!options->outfile->file) {
            perror(options->outfile->name);
            exit(1);
        }
    }
#endif
    /* ECC-657: If user supplied -p to print some keys, turn on verbose */
    if (grib_options_on("p:")) {
        if (grib_options_get_option("p:")) {
            options->verbose = 1;
        }
    }
    return 0;
}

int grib_tool_new_filename_action(grib_runtime_options* options, const char* file)
{
    return 0;
}

int grib_tool_new_file_action(grib_runtime_options* options, grib_tools_file* file)
{
    exit_if_input_is_directory(grib_tool_name, file->name);
    return 0;
}

int grib_tool_new_handle_action(grib_runtime_options* options, grib_handle* h)
{
    double* v;
    size_t size = 0;

    /* For '-s' option
    if (!options->skip) {
        int err = 0;
        if (options->set_values_count != 0)
            err=grib_set_values(h,options->set_values,options->set_values_count);
        if( err != GRIB_SUCCESS && options->fail) exit(err);
    }
    */

    if (options->repack) {
        GRIB_CHECK_NOLINE(grib_get_size(h, "values", &size), 0);

        v = (double*)calloc(size, sizeof(double));
        if (!v) {
            fprintf(stderr, "failed to allocate %ld bytes\n", (long)(size * sizeof(double)));
            exit(1);
        }

        GRIB_CHECK_NOLINE(grib_get_double_array(h, "values", v, &size), 0);
        GRIB_CHECK_NOLINE(grib_set_double_array(h, "values", v, size), 0);
        free(v);
    }
    grib_tools_write_message(options, h);
    return 0;
}

int grib_tool_skip_handle(grib_runtime_options* options, grib_handle* h)
{
    grib_handle_delete(h);
    return 0;
}

void grib_tool_print_key_values(grib_runtime_options* options, grib_handle* h)
{
    grib_print_key_values(options, h);
}

int grib_tool_finalise_action(grib_runtime_options* options)
{
    int err = 0;
    grib_file_close_all(&err);
    if (err != GRIB_SUCCESS) {
        perror(grib_tool_name);
        exit(err);
    }
    /* if (options->outfile->file)
       fclose(options->outfile->file); */
    return 0;
}

int grib_no_handle_action(grib_runtime_options* options, int err)
{
    fprintf(dump_file, "\t\t\"ERROR: unreadable message\"\n");
    return 0;
}