/*
 * (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.
 */

/***************************************************************************
 *   Jean Baptiste Filippi - 01.11.2005                                                           *
 *   Enrico Fucile
 *                                                                         *
 ***************************************************************************/

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

   START_CLASS_DEF
   CLASS      = action
   SUPER      = action_class_section
   IMPLEMENTS = create_accessor
   IMPLEMENTS = dump
   IMPLEMENTS = destroy
   IMPLEMENTS = reparse
   MEMBERS    = grib_arguments* trigger_on
   MEMBERS    = grib_action     *block
   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 "action.class" and rerun ./make_class.pl

*/

static void init_class(grib_action_class*);
static void dump(grib_action* d, FILE*, int);
static void destroy(grib_context*, grib_action*);
static int create_accessor(grib_section*, grib_action*, grib_loader*);
static grib_action* reparse(grib_action* a, grib_accessor* acc, int* doit);


typedef struct grib_action_trigger
{
    grib_action act;
    /* Members defined in section */
    /* Members defined in trigger */
    grib_arguments* trigger_on;
    grib_action* block;
} grib_action_trigger;

extern grib_action_class* grib_action_class_section;

static grib_action_class _grib_action_class_trigger = {
    &grib_action_class_section,  /* super                     */
    "action_class_trigger",      /* name                      */
    sizeof(grib_action_trigger), /* size                      */
    0,                           /* inited */
    &init_class,                 /* init_class */
    0,                           /* init                      */
    &destroy,                    /* destroy */

    &dump, /* dump                      */
    0,     /* xref                      */

    &create_accessor, /* create_accessor*/

    0,        /* notify_change */
    &reparse, /* reparse */
    0,        /* execute */
};

grib_action_class* grib_action_class_trigger = &_grib_action_class_trigger;

static void init_class(grib_action_class* c)
{
    c->xref          = (*(c->super))->xref;
    c->notify_change = (*(c->super))->notify_change;
    c->execute       = (*(c->super))->execute;
}
/* END_CLASS_IMP */

grib_action* grib_action_create_trigger(grib_context* context, grib_arguments* args, grib_action* block)
{
    char name[1024];

    grib_action_trigger* a = 0;
    grib_action_class* c   = grib_action_class_trigger;
    grib_action* act       = (grib_action*)grib_context_malloc_clear_persistent(context, c->size);

    sprintf(name, "_trigger%p", (void*)act);

    act->name    = grib_context_strdup_persistent(context, name);
    act->op      = grib_context_strdup_persistent(context, "section");
    act->cclass  = c;
    act->next    = NULL;
    act->context = context;

    a             = (grib_action_trigger*)act;
    a->trigger_on = args;
    a->block      = block;

    return act;
}

static void dump(grib_action* act, FILE* f, int lvl)
{
    /* grib_action_trigger* a = ( grib_action_trigger*)act; */
    int i = 0;
    for (i = 0; i < lvl; i++)
        grib_context_print(act->context, f, "     ");
    grib_context_print(act->context, f, "Trigger\n");
}

static int create_accessor(grib_section* p, grib_action* act, grib_loader* h)
{
    int ret                = GRIB_SUCCESS;
    grib_action_trigger* a = (grib_action_trigger*)act;
    grib_action* next      = NULL;
    grib_accessor* as      = NULL;
    grib_section* gs       = NULL;


    as = grib_accessor_factory(p, act, 0, NULL);

    if (!as)
        return GRIB_INTERNAL_ERROR;

    gs         = as->sub_section;
    gs->branch = 0; /* Force a reparse each time */

    grib_push_accessor(as, p->block);
    grib_dependency_observe_arguments(as, a->trigger_on);

    next = a->block;

    while (next) {
        ret = grib_create_accessor(gs, next, h);
        if (ret != GRIB_SUCCESS)
            return ret;
        next = next->next;
    }

    return GRIB_SUCCESS;
}

static grib_action* reparse(grib_action* a, grib_accessor* acc, int* doit)
{
    grib_action_trigger* self = (grib_action_trigger*)a;
    return self->block;
}

/* COMEBACK */
static void destroy(grib_context* context, grib_action* act)
{
    grib_action_trigger* a = (grib_action_trigger*)act;

    grib_action* b = a->block;

    while (b) {
        grib_action* n = b->next;
        grib_action_delete(context, b);
        b = n;
    }

    grib_arguments_free(context, a->trigger_on);
    grib_context_free_persistent(context, act->name);
    grib_context_free_persistent(context, act->op);
}
