/*
 * Copyright (C) 2015-2020 S[&]T, The Netherlands.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * 1. Redistributions of source code must retain the above copyright notice,
 *    this list of conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * 3. Neither the name of the copyright holder nor the names of its
 *    contributors may be used to endorse or promote products derived from
 *    this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */

#ifdef HAVE_CONFIG_H
#include "config.h"
#endif

#include "harp.h"

#include <assert.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

static int print_warning(const char *message, va_list ap)
{
    int result;

    fprintf(stderr, "WARNING: ");
    result = vfprintf(stderr, message, ap);
    fprintf(stderr, "\n");

    return result;
}

static void print_version()
{
    printf("harpcheck version %s\n", libharp_version);
    printf("Copyright (C) 2015-2020 S[&]T, The Netherlands.\n\n");
}

static void print_help()
{
    printf("Usage:\n");
    printf("    harpcheck <input product file> [input product file...]\n");
    printf("        If the product is a HARP product then verify that the\n");
    printf("        product is HARP compliant.\n");
    printf("        Otherwise, try to import the product using an applicable\n");
    printf("        ingestion module and test the ingestion for all possible\n");
    printf("        ingestion options.\n");
    printf("\n");
    printf("    harpcheck -h, --help\n");
    printf("        Show help (this text).\n");
    printf("\n");
    printf("    harpcheck -v, --version\n");
    printf("        Print the version number of HARP and exit.\n");
    printf("\n");
}

int main(int argc, char *argv[])
{
    int result = 0;
    int i;

    if (argc == 1 || strcmp(argv[1], "-h") == 0 || strcmp(argv[1], "--help") == 0)
    {
        print_help();
        exit(0);
    }

    if (strcmp(argv[1], "-v") == 0 || strcmp(argv[1], "--version") == 0)
    {
        print_version();
        exit(0);
    }

    if (argv[1][0] == '-')
    {
        fprintf(stderr, "ERROR: invalid arguments\n");
        print_help();
        exit(1);
    }
    /* assume all arguments from here on are files */

    if (harp_set_coda_definition_path_conditional(argv[0], NULL, "../share/coda/definitions") != 0)
    {
        fprintf(stderr, "ERROR: %s\n", harp_errno_to_string(harp_errno));
        exit(1);
    }
    if (harp_set_udunits2_xml_path_conditional(argv[0], NULL, "../share/harp/udunits2.xml") != 0)
    {
        fprintf(stderr, "ERROR: %s\n", harp_errno_to_string(harp_errno));
        exit(1);
    }

    harp_set_warning_handler(print_warning);

    if (harp_init() != 0)
    {
        fprintf(stderr, "ERROR: %s\n", harp_errno_to_string(harp_errno));
        exit(1);
    }

    for (i = 1; i < argc; i++)
    {
        const char *filename = argv[i];
        int status;

        status = harp_import_test(filename, printf);
        if (status != 0)
        {
            if (status < 0)
            {
                fprintf(stderr, "ERROR: %s\n", harp_errno_to_string(harp_errno));
            }
            result = 1;
        }
        printf("\n");
    }

    harp_done();
    return result;
}
