/*
 * (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.
 */

#include "grib_api_internal.h"
/* 
   This is used by make_class.pl

   START_CLASS_DEF
   CLASS      = accessor
   SUPER      = grib_accessor_class_ascii
   IMPLEMENTS = value_count;string_length
   IMPLEMENTS = init
   END_CLASS_DEF

 */

/* START_CLASS_IMP */

/*

Don't edit anything between START_CLASS_IMP and END_CLASS_IMP
Instead edit values between START_CLASS_DEF and END_CLASS_DEF
or edit "accessor.class" and rerun ./make_class.pl

*/

static size_t string_length(grib_accessor*);
static int value_count(grib_accessor*, long*);
static void init(grib_accessor*, const long, grib_arguments*);
static void init_class(grib_accessor_class*);

typedef struct grib_accessor_check_internal_version
{
    grib_accessor att;
    /* Members defined in gen */
    /* Members defined in ascii */
    /* Members defined in check_internal_version */
} grib_accessor_check_internal_version;

extern grib_accessor_class* grib_accessor_class_ascii;

static grib_accessor_class _grib_accessor_class_check_internal_version = {
    &grib_accessor_class_ascii,                   /* super                     */
    "check_internal_version",                     /* name                      */
    sizeof(grib_accessor_check_internal_version), /* size                      */
    0,                                            /* inited */
    &init_class,                                  /* init_class */
    &init,                                        /* init                      */
    0,                                            /* post_init                      */
    0,                                            /* free mem                       */
    0,                                            /* describes himself         */
    0,                                            /* get length of section     */
    &string_length,                               /* get length of string      */
    &value_count,                                 /* get number of values      */
    0,                                            /* get number of bytes      */
    0,                                            /* get offset to bytes           */
    0,                                            /* get native type               */
    0,                                            /* get sub_section                */
    0,                                            /* grib_pack procedures long      */
    0,                                            /* grib_pack procedures long      */
    0,                                            /* grib_pack procedures long      */
    0,                                            /* grib_unpack procedures long    */
    0,                                            /* grib_pack procedures double    */
    0,                                            /* grib_unpack procedures double  */
    0,                                            /* grib_pack procedures string    */
    0,                                            /* grib_unpack procedures string  */
    0,                                            /* grib_pack array procedures string    */
    0,                                            /* grib_unpack array procedures string  */
    0,                                            /* grib_pack procedures bytes     */
    0,                                            /* grib_unpack procedures bytes   */
    0,                                            /* pack_expression */
    0,                                            /* notify_change   */
    0,                                            /* update_size   */
    0,                                            /* preferred_size   */
    0,                                            /* resize   */
    0,                                            /* nearest_smaller_value */
    0,                                            /* next accessor    */
    0,                                            /* compare vs. another accessor   */
    0,                                            /* unpack only ith value          */
    0,                                            /* unpack a subarray         */
    0,                                            /* clear          */
    0,                                            /* clone accessor          */
};


grib_accessor_class* grib_accessor_class_check_internal_version = &_grib_accessor_class_check_internal_version;


static void init_class(grib_accessor_class* c)
{
    c->dump                   = (*(c->super))->dump;
    c->next_offset            = (*(c->super))->next_offset;
    c->byte_count             = (*(c->super))->byte_count;
    c->byte_offset            = (*(c->super))->byte_offset;
    c->get_native_type        = (*(c->super))->get_native_type;
    c->sub_section            = (*(c->super))->sub_section;
    c->pack_missing           = (*(c->super))->pack_missing;
    c->is_missing             = (*(c->super))->is_missing;
    c->pack_long              = (*(c->super))->pack_long;
    c->unpack_long            = (*(c->super))->unpack_long;
    c->pack_double            = (*(c->super))->pack_double;
    c->unpack_double          = (*(c->super))->unpack_double;
    c->pack_string            = (*(c->super))->pack_string;
    c->unpack_string          = (*(c->super))->unpack_string;
    c->pack_string_array      = (*(c->super))->pack_string_array;
    c->unpack_string_array    = (*(c->super))->unpack_string_array;
    c->pack_bytes             = (*(c->super))->pack_bytes;
    c->unpack_bytes           = (*(c->super))->unpack_bytes;
    c->pack_expression        = (*(c->super))->pack_expression;
    c->notify_change          = (*(c->super))->notify_change;
    c->update_size            = (*(c->super))->update_size;
    c->preferred_size         = (*(c->super))->preferred_size;
    c->resize                 = (*(c->super))->resize;
    c->nearest_smaller_value  = (*(c->super))->nearest_smaller_value;
    c->next                   = (*(c->super))->next;
    c->compare                = (*(c->super))->compare;
    c->unpack_double_element  = (*(c->super))->unpack_double_element;
    c->unpack_double_subarray = (*(c->super))->unpack_double_subarray;
    c->clear                  = (*(c->super))->clear;
    c->make_clone             = (*(c->super))->make_clone;
}

/* END_CLASS_IMP */

/* This is the internal engine version number */
/* We check this against the version number found in the definitions boot.def file */
/* See the key "internalVersion"  */
#define LATEST_ENGINE_VERSION 30

static void init(grib_accessor* a, const long l, grib_arguments* args)
{
    /* Check version of definition files is compatible with the engine */
    int err                    = 0;
    long defs_file_version     = 0;
    grib_handle* h             = grib_handle_of_accessor(a);
    const char* s_defn_version = grib_arguments_get_name(h, args, 0);
    Assert(s_defn_version);

    err = grib_get_long_internal(h, s_defn_version, &defs_file_version);
    if (!err) {
        if (defs_file_version > LATEST_ENGINE_VERSION) {
            grib_context_log(h->context, GRIB_LOG_FATAL,
                             "Definition files version (%d) is greater than engine version (%d)!\n"
                             "                    " /* indent for 2nd line */
                             "These definition files are for a later version of the ecCodes engine.",
                             defs_file_version, LATEST_ENGINE_VERSION);
        }
    }
}

static int value_count(grib_accessor* a, long* count)
{
    *count = 1;
    return 0;
}

static size_t string_length(grib_accessor* a)
{
    return 255;
}
