/*
 * Copyright 2005-2016 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"
/*
   This is used by make_class.pl

   START_CLASS_DEF
   CLASS      = accessor
   SUPER      = grib_accessor_class_gen
   IMPLEMENTS = unpack_long;pack_long; value_count
   IMPLEMENTS = unpack_string;pack_string
   IMPLEMENTS = init; get_native_type
   MEMBERS=int index
   MEMBERS=const char* the_class
   MEMBERS=const char* stream
   MEMBERS=const char* type
   MEMBERS=const char* expver
   MEMBERS=const char* typeOfProcessedData
   MEMBERS=const char* productDefinitionTemplateNumber
   MEMBERS=const char* stepType
   MEMBERS=const char* derivedForecast
   MEMBERS=const char* typeOfGeneratingProcess

   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 int  get_native_type(grib_accessor*);
static int pack_long(grib_accessor*, const long* val,size_t *len);
static int pack_string(grib_accessor*, const char*, size_t *len);
static int unpack_long(grib_accessor*, long* val,size_t *len);
static int unpack_string (grib_accessor*, char*, size_t *len);
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_g2_mars_labeling {
    grib_accessor          att;
/* Members defined in gen */
/* Members defined in g2_mars_labeling */
	int index;
	const char* the_class;
	const char* stream;
	const char* type;
	const char* expver;
	const char* typeOfProcessedData;
	const char* productDefinitionTemplateNumber;
	const char* stepType;
	const char* derivedForecast;
	const char* typeOfGeneratingProcess;
} grib_accessor_g2_mars_labeling;

extern grib_accessor_class* grib_accessor_class_gen;

static grib_accessor_class _grib_accessor_class_g2_mars_labeling = {
    &grib_accessor_class_gen,                      /* super                     */
    "g2_mars_labeling",                      /* name                      */
    sizeof(grib_accessor_g2_mars_labeling),  /* size                      */
    0,                           /* inited */
    &init_class,                 /* init_class */
    &init,                       /* init                      */
    0,                  /* post_init                      */
    0,                    /* free mem                       */
    0,                       /* describes himself         */
    0,                /* get length of section     */
    0,              /* get length of string      */
    &value_count,                /* get number of values      */
    0,                 /* get number of bytes      */
    0,                /* get offset to bytes           */
    &get_native_type,            /* get native type               */
    0,                /* get sub_section                */
    0,               /* grib_pack procedures long      */
    0,               /* grib_pack procedures long      */
    &pack_long,                  /* grib_pack procedures long      */
    &unpack_long,                /* grib_unpack procedures long    */
    0,                /* grib_pack procedures double    */
    0,              /* grib_unpack procedures double  */
    &pack_string,                /* grib_pack procedures string    */
    &unpack_string,              /* grib_unpack 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          */
};


grib_accessor_class* grib_accessor_class_g2_mars_labeling = &_grib_accessor_class_g2_mars_labeling;


static void init_class(grib_accessor_class* c)
{
	c->dump	=	(*(c->super))->dump;
	c->next_offset	=	(*(c->super))->next_offset;
	c->string_length	=	(*(c->super))->string_length;
	c->byte_count	=	(*(c->super))->byte_count;
	c->byte_offset	=	(*(c->super))->byte_offset;
	c->sub_section	=	(*(c->super))->sub_section;
	c->pack_missing	=	(*(c->super))->pack_missing;
	c->is_missing	=	(*(c->super))->is_missing;
	c->pack_double	=	(*(c->super))->pack_double;
	c->unpack_double	=	(*(c->super))->unpack_double;
	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;
}

/* END_CLASS_IMP */

static void init(grib_accessor* a,const long l, grib_arguments* c)
{
    grib_accessor_g2_mars_labeling* self = (grib_accessor_g2_mars_labeling*)a;
    int n = 0;

    self->index = grib_arguments_get_long(a->parent->h,c,n++);
    self->the_class = grib_arguments_get_name(a->parent->h,c,n++);
    self->type = grib_arguments_get_name(a->parent->h,c,n++);
    self->stream = grib_arguments_get_name(a->parent->h,c,n++);
    self->expver = grib_arguments_get_name(a->parent->h,c,n++);
    self->typeOfProcessedData = grib_arguments_get_name(a->parent->h,c,n++);
    self->productDefinitionTemplateNumber = grib_arguments_get_name(a->parent->h,c,n++);
    self->stepType = grib_arguments_get_name(a->parent->h,c,n++);
    self->derivedForecast = grib_arguments_get_name(a->parent->h,c,n++);
    self->typeOfGeneratingProcess = grib_arguments_get_name(a->parent->h,c,n++);
}

static int unpack_long(grib_accessor* a, long* val, size_t *len)
{
    grib_accessor_g2_mars_labeling* self = (grib_accessor_g2_mars_labeling*)a;
    char* key=NULL;

    switch (self->index) {
    case 0:
        key=(char*)self->the_class;
        break;
    case 1:
        key=(char*)self->type;
        break;
    case 2:
        key=(char*)self->stream;
        break;
    default :
        grib_context_log(a->parent->h->context,GRIB_LOG_ERROR,
                "invalid first argument of g2_mars_labeling in %s",a->name);
        return GRIB_INTERNAL_ERROR;
        break;
    }

    return grib_get_long(a->parent->h, key,val);
}

static int unpack_string(grib_accessor* a, char* val, size_t *len)
{
    grib_accessor_g2_mars_labeling* self = (grib_accessor_g2_mars_labeling*)a;
    char* key=NULL;

    switch (self->index) {
    case 0:
        key=(char*)self->the_class;
        break;
    case 1:
        key=(char*)self->type;
        break;
    case 2:
        key=(char*)self->stream;
        break;
    default :
        grib_context_log(a->parent->h->context,GRIB_LOG_ERROR,
                "invalid first argument of g2_mars_labeling in %s",a->name);
        return GRIB_INTERNAL_ERROR;
        break;
    }

    return grib_get_string(a->parent->h, key,val,len);

}

static int extra_set(grib_accessor* a,long val)
{
/*TODO chemicals*/
    int ret=0;
    grib_accessor_g2_mars_labeling* self = (grib_accessor_g2_mars_labeling*)a;
    char stepType[30]={0,};
    size_t stepTypelen=30;
    long derivedForecast=-1;
    long productDefinitionTemplateNumberNew=-1;
    long productDefinitionTemplateNumber;
    long typeOfProcessedData=-1;
    long typeOfGeneratingProcess=-1;

    switch (self->index) {
    case 0:
        /* class */
        return ret;
        break;
    case 1:
        /* type */
        switch (val) {
        case 0:		/* Unknown       (0) */
            typeOfProcessedData=255;
            typeOfGeneratingProcess=255;
            break;
        case 1:		/* First guess          (fg) */
        case 3:		/* Initialised analysis (ia) */
            typeOfProcessedData=0;
            typeOfGeneratingProcess=1;
            break;
        case 2:		/* Analysis                    (an) */
        case 4:		/* Oi analysis                 (oi) */
        case 5:		/* 3d variational analysis     (3v) */
        case 6:		/* 4d variational analysis     (4v) */
        case 7:		/* 3d variational gradients    (3g) */
        case 8:		/* 4d variational gradients    (4g) */
            typeOfProcessedData=0;
            typeOfGeneratingProcess=0;
            break;
        case 9:		/* Forecast  (fc) */
            typeOfProcessedData=1;
            typeOfGeneratingProcess=2;
            break;
        case 10:	/* Control forecast  (cf) */
            typeOfProcessedData=3;
            typeOfGeneratingProcess=4;
            break;
        case 11:	/* Perturbed forecast    (pf) */
            typeOfProcessedData=4;
            typeOfGeneratingProcess=4;
            break;
        case 12:	/* Errors in first guess  (ef) */
        case 13:	/* Errors in analysis     (ea) */
            typeOfProcessedData=255;
            typeOfGeneratingProcess=7;
            break;
        case 14:	/* Cluster means              (cm) */
        case 15:	/* Cluster std deviations     (cs) */
            typeOfProcessedData=255;
            typeOfGeneratingProcess=4;
            break;
        case 16:	/* Forecast probability  (fp) */
            typeOfProcessedData=8;
            typeOfGeneratingProcess=5;
            break;
        case 17:	/* Ensemble mean  (em) */
            derivedForecast=0;
            grib_get_string(a->parent->h,self->stepType,stepType,&stepTypelen);
            if (!strcmp(stepType,"instant")) {
                productDefinitionTemplateNumberNew=2;
            } else {
                productDefinitionTemplateNumberNew=12;
            }
            typeOfProcessedData=255;
            typeOfGeneratingProcess=4;
            break;
        case 18:	/* Ensemble standard deviation     (es) */
            derivedForecast=4;
            grib_get_string(a->parent->h,self->stepType,stepType,&stepTypelen);
            if (!strcmp(stepType,"instant")) {
                productDefinitionTemplateNumberNew=2;
            } else {
                productDefinitionTemplateNumberNew=12;
            }
            typeOfProcessedData=255;
            typeOfGeneratingProcess=4;
            break;
        case 19:	/* Forecast accumulation           (fa)  */
        case 20:	/* Climatology                     (cl)  */
        case 21:	/* Climate simulation              (si)  */
        case 22:	/* Climate 30 days simulation      (s3)  */
        case 23:	/* Empirical distribution          (ed)  */
        case 24:	/* Tubes                           (tu)  */
        case 25:	/* Flux forcing realtime           (ff)  */
        case 26:	/* Ocean forward                   (of)  */
        case 27:	/* Extreme forecast index          (efi) */
        case 28:	/* Extreme forecast index control  (efic)*/
        case 29:	/* Probability boundaries          (pb)  */
            typeOfProcessedData=255;
            typeOfGeneratingProcess=255;
            break;
        case 30:	/* Event probability      (ep) */
            typeOfProcessedData=8;
            typeOfGeneratingProcess=5;
            break;
        case 31:	/* Bias-corrected Forecast      (bf) */
            typeOfProcessedData=1;
            typeOfGeneratingProcess=3;
            break;
        case 32:	/* Climate distribution      (cd)  */
        case 33:	/* 4D analysis increments    (4i)  */
        case 34:	/* Gridded observations      (go)  */
        case 35:	/* Model errors              (me)  */
        case 36:	/* Probability distribution  (pd)  */
        case 37:	/* Cluster information       (ci)  */
        case 38:	/* Shift of Tail             (sot) */
        case 40:	/* Images                    (im)  */
        case 42:	/* Simulated images          (sim) */
            typeOfProcessedData=255;
            typeOfGeneratingProcess=255;
            break;
        case 43:	/* Weighted ensemble mean                   (wem)  */
        case 44:	/* Weighted ensemble standard deviation     (wes)  */
        case 45:	/* Cluster representative                   (cr)   */
        case 46:	/* Scaled ensemble standard deviation       (ses)  */
        case 47:	/* Time average ensemble mean               (taem) */
        case 48:	/* Time average ensemble standard deviation (taes) */
            typeOfProcessedData=255;
            typeOfGeneratingProcess=4;
            break;
        case 50:	/* Sensitivity gradient            (sg)   */
        case 52:	/* Sensitivity forecast            (sf)   */
        case 60:	/* Perturbed analysis              (pa)   */
        case 61:	/* Initial condition perturbation  (icp)  */
        case 62:	/* Singular vector                 (sv)   */
        case 63:	/* Adjoint singular vector         (as)   */
        case 64:	/* Signal variance                 (svar) */
            typeOfProcessedData=255;
            typeOfGeneratingProcess=255;
            break;
        case 65:	/* Calibration/Validation forecast  (cv) */
            typeOfProcessedData=5;
            typeOfGeneratingProcess=4;
            break;
        case 70:	/* Ocean reanalysis     (or) */
        case 71:	/* Flux forcing         (fx) */
        case 80:	/* Forecast mean        (fcmean) */
        case 81:	/* Forecast maximum     (fcmax) */
        case 82:	/* Forecast minimum     (fcmin) */
        case 83:	/* Forecast standard deviation  (fcstdev) */
        case 87:	/* Simulated satellite data */
        case 88:	/* Gridded satellite data */
        case 89:	/* GFAS analysis */
            typeOfProcessedData=255;
            typeOfGeneratingProcess=255;
            break;
        case 84:	/* Ensemble mean of temporal mean   (emtm) */
        case 85:	/* Ensemble standard deviation of temporal mean  (estdtm) */
            typeOfProcessedData=255;
            typeOfGeneratingProcess=4;
            break;
        default :
            grib_context_log(a->parent->h->context,GRIB_LOG_ERROR,"unknown mars.type %d",(int)val);
            return GRIB_ENCODING_ERROR;
        }
        case 2:
            /* stream */
            switch (val) {
            case 1030:  /* enda */
            case 1249:  /* elda */
            case 1250:  /* ewla */
                grib_get_string(a->parent->h,self->stepType,stepType,&stepTypelen);
                if (!strcmp(stepType,"instant")) {
                    productDefinitionTemplateNumberNew=1;
                } else {
                    productDefinitionTemplateNumberNew=11;
                }
                break;
            }
            break;
        default :
            grib_context_log(a->parent->h->context,GRIB_LOG_ERROR,
                        "invalid first argument of g2_mars_labeling in %s",a->name);
            return GRIB_INTERNAL_ERROR;
            break;
    }

    if (productDefinitionTemplateNumberNew>=0) {
        grib_get_long(a->parent->h,self->productDefinitionTemplateNumber,&productDefinitionTemplateNumber);
        if (productDefinitionTemplateNumber!=productDefinitionTemplateNumberNew)
            grib_set_long(a->parent->h,self->productDefinitionTemplateNumber,productDefinitionTemplateNumberNew);
    }

    if (derivedForecast>=0) {
        grib_set_long(a->parent->h,self->derivedForecast,derivedForecast);
    }

    if (typeOfProcessedData>0)
        grib_set_long(a->parent->h,self->typeOfProcessedData,typeOfProcessedData);
    if (typeOfGeneratingProcess>0)
        grib_set_long(a->parent->h,self->typeOfGeneratingProcess,typeOfGeneratingProcess);

    return ret;
}

static int pack_string(grib_accessor* a, const char* val, size_t *len)
{
    grib_accessor_g2_mars_labeling* self = (grib_accessor_g2_mars_labeling*)a;
    char* key=NULL;
    int ret=0;
    long lval=0;

    switch (self->index) {
    case 0:
        key=(char*)self->the_class;
        break;
    case 1:
        key=(char*)self->type;
        break;
    case 2:
        key=(char*)self->stream;
        break;
    default :
        grib_context_log(a->parent->h->context,GRIB_LOG_ERROR,
                "invalid first argument of g2_mars_labeling in %s",a->name);
        return GRIB_INTERNAL_ERROR;
        break;
    }

    ret=grib_set_string(a->parent->h, key,val,len);
    if (ret) return ret; /* failed */

    ret=grib_get_long(a->parent->h, key,&lval);
    if (ret) return ret; /* failed */

    return extra_set(a,lval);
}

static int pack_long(grib_accessor* a, const long* val, size_t *len)
{
    grib_accessor_g2_mars_labeling* self = (grib_accessor_g2_mars_labeling*)a;
    char* key=NULL;
    int ret=0;

    switch (self->index) {
    case 0:
        key=(char*)self->the_class;
        break;
    case 1:
        key=(char*)self->type;
        break;
    case 2:
        key=(char*)self->stream;
        break;
    default :
        grib_context_log(a->parent->h->context,GRIB_LOG_ERROR,
                "invalid first argument of g2_mars_labeling in %s",a->name);
        return GRIB_INTERNAL_ERROR;
        break;
    }

    ret=grib_set_long(a->parent->h, key,*val);
    if (ret) return ret; /* failed */

    return extra_set(a,*val);
}

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

static int  get_native_type(grib_accessor* a)
{
    grib_accessor_g2_mars_labeling* self = (grib_accessor_g2_mars_labeling*)a;
    char* key=NULL;
    int ret=0;
    int type=0;

    switch (self->index) {
    case 0:
        key=(char*)self->the_class;
        break;
    case 1:
        key=(char*)self->type;
        break;
    case 2:
        key=(char*)self->stream;
        break;
    default :
        grib_context_log(a->parent->h->context,GRIB_LOG_ERROR,
                "invalid first argument of g2_mars_labeling in %s",a->name);
        return GRIB_INTERNAL_ERROR;
        break;
    }

    ret=grib_get_native_type(a->parent->h,key,&type);
    if (ret) grib_context_log(a->parent->h->context,GRIB_LOG_ERROR,
            "unable to get native type for %s",key);
    return type;
}
