/*
 * (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.
 */
/**************************************
 *  Enrico Fucile
 **************************************/


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

   START_CLASS_DEF
   CLASS      = dumper
   IMPLEMENTS = dump_long;dump_bits
   IMPLEMENTS = dump_double;dump_string
   IMPLEMENTS = dump_bytes;dump_values
   IMPLEMENTS = dump_label;dump_section
   IMPLEMENTS = init;destroy
   MEMBERS    =  char* format
   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 "dumper.class" and rerun ./make_class.pl

*/

static void init_class(grib_dumper_class*);
static int init(grib_dumper* d);
static int destroy(grib_dumper*);
static void dump_long(grib_dumper* d, grib_accessor* a, const char* comment);
static void dump_bits(grib_dumper* d, grib_accessor* a, const char* comment);
static void dump_double(grib_dumper* d, grib_accessor* a, const char* comment);
static void dump_string(grib_dumper* d, grib_accessor* a, const char* comment);
static void dump_bytes(grib_dumper* d, grib_accessor* a, const char* comment);
static void dump_values(grib_dumper* d, grib_accessor* a);
static void dump_label(grib_dumper* d, grib_accessor* a, const char* comment);
static void dump_section(grib_dumper* d, grib_accessor* a, grib_block_of_accessors* block);

typedef struct grib_dumper_serialize
{
    grib_dumper dumper;
    /* Members defined in serialize */
    char* format;
} grib_dumper_serialize;


static grib_dumper_class _grib_dumper_class_serialize = {
    0,                             /* super                     */
    "serialize",                   /* name                      */
    sizeof(grib_dumper_serialize), /* size                      */
    0,                             /* inited */
    &init_class,                   /* init_class */
    &init,                         /* init                      */
    &destroy,                      /* free mem                       */
    &dump_long,                    /* dump long         */
    &dump_double,                  /* dump double    */
    &dump_string,                  /* dump string    */
    0,                             /* dump string array   */
    &dump_label,                   /* dump labels  */
    &dump_bytes,                   /* dump bytes  */
    &dump_bits,                    /* dump bits   */
    &dump_section,                 /* dump section      */
    &dump_values,                  /* dump values   */
    0,                             /* header   */
    0,                             /* footer   */
};

grib_dumper_class* grib_dumper_class_serialize = &_grib_dumper_class_serialize;

/* END_CLASS_IMP */
static void init_class(grib_dumper_class* c) {}

static int init(grib_dumper* d)
{
    grib_dumper_serialize* self = (grib_dumper_serialize*)d;
    self->format                = (char*)d->arg;
    return GRIB_SUCCESS;
}

static int destroy(grib_dumper* d)
{
    return GRIB_SUCCESS;
}

static void dump_long(grib_dumper* d, grib_accessor* a, const char* comment)
{
    grib_dumper_serialize* self = (grib_dumper_serialize*)d;
    long value                  = 0;
    size_t size                 = 1;
    int err                     = grib_unpack_long(a, &value, &size);

    if ((a->flags & GRIB_ACCESSOR_FLAG_HIDDEN) != 0)
        return;

    if ((a->flags & GRIB_ACCESSOR_FLAG_READ_ONLY) != 0 &&
        (d->option_flags & GRIB_DUMP_FLAG_READ_ONLY) == 0 &&
        (strcmp(a->cclass->name, "lookup") != 0))
        return;

    if (((a->flags & GRIB_ACCESSOR_FLAG_CAN_BE_MISSING) != 0) && (value == GRIB_MISSING_LONG))
        fprintf(self->dumper.out, "%s = MISSING", a->name);
    else
        fprintf(self->dumper.out, "%s = %ld", a->name, value);

    if (((a->flags & GRIB_ACCESSOR_FLAG_READ_ONLY) != 0) &&
        (strcmp(a->cclass->name, "lookup") != 0))
        fprintf(self->dumper.out, " (read_only)");

#if 0
    if(comment) fprintf(self->dumper.out," [%s]",comment);
#endif
    if (err)
        fprintf(self->dumper.out, " *** ERR=%d (%s) [grib_dumper_serialize::dump_long]", err, grib_get_error_message(err));

    fprintf(self->dumper.out, "\n");
}

#if 0
static int test_bit(long a, long b) {return a&(1<<b);}
#endif

static void dump_bits(grib_dumper* d, grib_accessor* a, const char* comment)
{
    grib_dumper_serialize* self = (grib_dumper_serialize*)d;
    long value;
    size_t size = 1;
    int err     = grib_unpack_long(a, &value, &size);

    if ((a->flags & GRIB_ACCESSOR_FLAG_HIDDEN) != 0)
        return;

    if ((a->flags & GRIB_ACCESSOR_FLAG_READ_ONLY) != 0 &&
        (d->option_flags & GRIB_DUMP_FLAG_READ_ONLY) == 0)
        return;

    fprintf(self->dumper.out, "%s = %ld ", a->name, value);

#if 0

    fprintf(self->dumper.out,"[");
    for(i=0;i<(a->length*8);i++) {
        if(test_bit(value,a->length*8-i-1))
            fprintf(self->dumper.out,"1");
        else
            fprintf(self->dumper.out,"0");
    }

    if(comment)
        fprintf(self->dumper.out,":%s]",comment);
    else
        fprintf(self->dumper.out,"]");
#endif
    if (err)
        fprintf(self->dumper.out, " *** ERR=%d (%s)", err, grib_get_error_message(err));

    fprintf(self->dumper.out, "\n");
}

static void dump_double(grib_dumper* d, grib_accessor* a, const char* comment)
{
    grib_dumper_serialize* self = (grib_dumper_serialize*)d;
    double value;
    size_t size = 1;
    int err     = grib_unpack_double(a, &value, &size);

    if ((a->flags & GRIB_ACCESSOR_FLAG_HIDDEN) != 0)
        return;

    if ((a->flags & GRIB_ACCESSOR_FLAG_READ_ONLY) != 0 &&
        (d->option_flags & GRIB_DUMP_FLAG_READ_ONLY) == 0)
        return;

    if (((a->flags & GRIB_ACCESSOR_FLAG_CAN_BE_MISSING) != 0) && (value == GRIB_MISSING_DOUBLE))
        fprintf(self->dumper.out, "%s = MISSING", a->name);
    else
        fprintf(self->dumper.out, "%s = %g", a->name, value);

    if ((a->flags & GRIB_ACCESSOR_FLAG_READ_ONLY) != 0)
        fprintf(self->dumper.out, " (read_only)");

#if 0
    if(comment) fprintf(self->dumper.out," [%s]",comment);
#endif
    if (err)
        fprintf(self->dumper.out, " *** ERR=%d (%s) [grib_dumper_serialize::dump_double]", err, grib_get_error_message(err));
    fprintf(self->dumper.out, "\n");
}

static void dump_string(grib_dumper* d, grib_accessor* a, const char* comment)
{
    grib_dumper_serialize* self = (grib_dumper_serialize*)d;
    char value[1024]            = {0,};
    size_t size = sizeof(value);
    int err     = grib_unpack_string(a, value, &size);
    int i;

    char* p = value;

    if ((a->flags & GRIB_ACCESSOR_FLAG_HIDDEN) != 0)
        return;

    if ((a->flags & GRIB_ACCESSOR_FLAG_READ_ONLY) != 0 &&
        (d->option_flags & GRIB_DUMP_FLAG_READ_ONLY) == 0)
        return;

    while (*p) {
        if (!isprint(*p))
            *p = '.';
        p++;
    }

    for (i = 0; i < d->depth; i++)
        fprintf(self->dumper.out, " ");

    fprintf(self->dumper.out, "%s = %s", a->name, value);
    if ((a->flags & GRIB_ACCESSOR_FLAG_READ_ONLY) != 0)
        fprintf(self->dumper.out, " (read_only)");

#if 0
    if(comment) fprintf(self->dumper.out," [%s]",comment);
#endif
    if (err)
        fprintf(self->dumper.out, " *** ERR=%d (%s) [grib_dumper_serialize::dump_string]", err, grib_get_error_message(err));
    fprintf(self->dumper.out, "\n");
}

static void dump_bytes(grib_dumper* d, grib_accessor* a, const char* comment)
{
    grib_dumper_serialize* self = (grib_dumper_serialize*)d;
    int i, k, err = 0;
    int more           = 0;
    size_t size        = a->length;
    unsigned char* buf = (unsigned char*)grib_context_malloc(d->context, size);

    if ((a->flags & GRIB_ACCESSOR_FLAG_HIDDEN) != 0)
        return;

    if ((a->flags & GRIB_ACCESSOR_FLAG_READ_ONLY) != 0 &&
        (d->option_flags & GRIB_DUMP_FLAG_READ_ONLY) == 0)
        return;

    for (i = 0; i < d->depth; i++)
        fprintf(self->dumper.out, " ");
    fprintf(self->dumper.out, "%s = (%ld) {", a->name, a->length);

    if (!buf) {
        if (size == 0)
            fprintf(self->dumper.out, "}\n");
        else
            fprintf(self->dumper.out, " *** ERR cannot malloc(%ld) }\n", (long)size);
        return;
    }

    fprintf(self->dumper.out, "\n");

    err = grib_unpack_bytes(a, buf, &size);
    if (err) {
        grib_context_free(d->context, buf);
        fprintf(self->dumper.out, " *** ERR=%d (%s) [grib_dumper_serialize::dump_bytes]\n}", err, grib_get_error_message(err));
        return;
    }

    if (size > 100) {
        more = size - 100;
        size = 100;
    }

    k = 0;
    /* if(size > 100) size = 100;  */
    while (k < size) {
        int j;
        for (i = 0; i < d->depth + 3; i++)
            fprintf(self->dumper.out, " ");
        for (j = 0; j < 16 && k < size; j++, k++) {
            fprintf(self->dumper.out, "%02x", buf[k]);
            if (k != size - 1)
                fprintf(self->dumper.out, ", ");
        }
        fprintf(self->dumper.out, "\n");
    }

    if (more) {
        for (i = 0; i < d->depth + 3; i++)
            fprintf(self->dumper.out, " ");
        fprintf(self->dumper.out, "... %d more values\n", more);
    }

    for (i = 0; i < d->depth; i++)
        fprintf(self->dumper.out, " ");
    fprintf(self->dumper.out, "} # %s %s \n", a->creator->op, a->name);
    grib_context_free(d->context, buf);
}

static void dump_values(grib_dumper* d, grib_accessor* a)
{
    grib_dumper_serialize* self = (grib_dumper_serialize*)d;
    int k, err = 0;
    double* buf          = NULL;
    int last             = 0;
    int columns          = 4;
    char* values_format  = NULL;
    char* default_format = "%.16e";
    char* columns_str    = NULL;
    size_t len           = 0;
    char* pc             = NULL;
    char* pcf            = NULL;
    size_t size          = 0;
    long count           = 0;
    values_format        = default_format;

    if ((a->flags & GRIB_ACCESSOR_FLAG_READ_ONLY))
        return;

    grib_value_count(a, &count);
    size = count;

    if (self->format) {
        if (self->format[0] == '\"')
            values_format = self->format + 1;
        else
            values_format = self->format;
        last = strlen(values_format) - 1;
        if (values_format[last] == '\"')
            values_format[last] = '\0';
    }

    pc  = values_format;
    pcf = values_format;
    while (*pc != '\0' && *pc != '%')
        pc++;
    if (strlen(pc) > 1) {
        values_format = pc;
        len           = pc - pcf;
    }
    else {
        values_format = default_format;
        len           = 0;
    }

    if (len > 0) {
        columns_str = (char*)malloc((len + 1) * sizeof(char));
        Assert(columns_str);
        columns_str      = (char*)memcpy(columns_str, pcf, len);
        columns_str[len] = '\0';
        columns          = atoi(columns_str);
        free(columns_str);
    }

    if (size == 1) {
        dump_double(d, a, NULL);
        return;
    }

    if ((d->option_flags & GRIB_DUMP_FLAG_VALUES) == 0)
        return;

    buf = (double*)grib_context_malloc(d->context, size * sizeof(double));

    fprintf(self->dumper.out, "%s (%ld) {", a->name, (long)size);

    if (!buf) {
        if (size == 0)
            fprintf(self->dumper.out, "}\n");
        else
            fprintf(self->dumper.out, " *** ERR cannot malloc(%ld) }\n", (long)size);
        return;
    }

    fprintf(self->dumper.out, "\n");

    err = grib_unpack_double(a, buf, &size);

    if (err) {
        grib_context_free(d->context, buf);
        fprintf(self->dumper.out, " *** ERR=%d (%s) [grib_dumper_serialize::dump_values]\n}", err, grib_get_error_message(err));
        return;
    }

    k = 0;
    while (k < size) {
        int j;
        for (j = 0; j < columns && k < size; j++, k++) {
            fprintf(self->dumper.out, values_format, buf[k]);
            if (k != size - 1)
                fprintf(self->dumper.out, ", ");
        }
        fprintf(self->dumper.out, "\n");
    }
    fprintf(self->dumper.out, "}\n");
    grib_context_free(d->context, buf);
}

static void dump_label(grib_dumper* d, grib_accessor* a, const char* comment)
{
#if 0
    grib_dumper_serialize *self = (grib_dumper_serialize*)d;
    int i;
    for(i = 0; i < d->depth ; i++) fprintf(self->dumper.out," ");
    fprintf(self->dumper.out,"----> %s %s %s\n",a->creator->op, a->name,comment?comment:"");
#endif
}

static void dump_section(grib_dumper* d, grib_accessor* a, grib_block_of_accessors* block)
{
    const char* secstr          = "section";
    int len                     = 0;
    grib_dumper_serialize* self = (grib_dumper_serialize*)d;

    len = strlen(secstr);

    if (a->name[0] == '_') {
        grib_dump_accessors_block(d, block);
        return;
    }

    if (strncmp(secstr, a->name, len) == 0)
        fprintf(self->dumper.out, "#------ %s -------\n", a->name);

    grib_dump_accessors_block(d, block);

#if 0
    fprintf(self->dumper.out,"<------ %s %s\n",a->creator->op, a->name);
#endif
}
