#
# (C) Copyright 2005- 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.
#

# Python implementation: get_product_kind
#
# Description: how to process a file containing a mix of messages
#              and print the kind of product (e.g. GRIB, BUFR etc)


import sys
import traceback

from eccodes import *

VERBOSE = 1  # verbose error reporting


def example():
    if len(sys.argv) < 2:
        print("Usage: ", sys.argv[0], " file", file=sys.stderr)
        sys.exit(1)

    f = open(sys.argv[1], "rb")
    while 1:
        ident = codes_new_from_file(f, CODES_PRODUCT_ANY)
        if ident is None:
            break

        print("product: ", codes_get(ident, "kindOfProduct", str))

        codes_release(ident)

    f.close()


def main():
    try:
        example()
    except CodesInternalError as err:
        if VERBOSE:
            traceback.print_exc(file=sys.stderr)
        else:
            sys.stderr.write(err.msg + "\n")

        return 1


if __name__ == "__main__":
    sys.exit(main())