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//
// Created by parallels on 27/03/24.
//
#include "platform.h"
#include "taler_error_codes.h"
#include "taler_dbevents.h"
#include "taler_pq_lib.h"
#include "pg_helper.h"
#include "pg_get_emergency_by_count.h"
/**
* Closure for #emergency_cb().
*/
struct EmergencyByCountContext
{
/**
* Function to call for each deposit confirmation.
*/
TALER_AUDITORDB_EmergenciesByCountCallback cb;
/**
* Closure for @e cb
*/
void *cb_cls;
/**
* Plugin context.
*/
struct PostgresClosure *pg;
/**
* Query status to return.
*/
enum GNUNET_DB_QueryStatus qs;
};
/**
* Helper function for #TAH_PG_get_emergency_by_count().
* To be called with the results of a SELECT statement
* that has returned @a num_results results.
*
* @param cls closure of type `struct Emergency *`
* @param result the postgres result
* @param num_results the number of results in @a result
*/
static void
emergency_by_count_cb (void *cls,
PGresult *result,
unsigned int num_results)
{
struct EmergencyByCountContext *dcc = cls;
struct PostgresClosure *pg = dcc->pg;
for (unsigned int i = 0; i < num_results; i++)
{
uint64_t serial_id;
struct TALER_AUDITORDB_EmergenciesByCount dc;
struct GNUNET_PQ_ResultSpec rs[] = {
GNUNET_PQ_result_spec_uint64 ("row_id", &serial_id),
GNUNET_PQ_result_spec_auto_from_type ("denompub_h", &dc.denompub_h),
GNUNET_PQ_result_spec_int64 ("num_issued", &dc.num_issued),
GNUNET_PQ_result_spec_int64 ("num_known", &dc.num_known),
TALER_PQ_RESULT_SPEC_AMOUNT ("risk", &dc.risk),
GNUNET_PQ_result_spec_int64 ("start", &dc.start),
GNUNET_PQ_result_spec_int64 ("deposit_end", &dc.deposit_end),
TALER_PQ_RESULT_SPEC_AMOUNT ("value", &dc.value),
GNUNET_PQ_result_spec_end
};
enum GNUNET_GenericReturnValue rval;
if (GNUNET_OK !=
GNUNET_PQ_extract_result (result,
rs,
i))
{
GNUNET_break (0);
dcc->qs = GNUNET_DB_STATUS_HARD_ERROR;
return;
}
dcc->qs = i + 1;
rval = dcc->cb (dcc->cb_cls,
serial_id,
&dc);
GNUNET_PQ_cleanup_result (rs);
if (GNUNET_OK != rval)
break;
}
}
enum GNUNET_DB_QueryStatus
TAH_PG_get_emergency_by_count (
void *cls,
int64_t limit,
uint64_t offset,
bool return_suppressed, // maybe not needed
TALER_AUDITORDB_EmergenciesByCountCallback cb,
void *cb_cls)
{
uint64_t plimit = (uint64_t) ((limit < 0) ? -limit : limit);
struct PostgresClosure *pg = cls;
struct GNUNET_PQ_QueryParam params[] = {
GNUNET_PQ_query_param_uint64 (&offset),
GNUNET_PQ_query_param_bool (return_suppressed),
GNUNET_PQ_query_param_uint64 (&plimit),
GNUNET_PQ_query_param_end
};
struct EmergencyByCountContext dcc = {
.cb = cb,
.cb_cls = cb_cls,
.pg = pg
};
enum GNUNET_DB_QueryStatus qs;
PREPARE (pg,
"auditor_emergency_by_count_get_desc",
"SELECT"
" row_id"
",denompub_h"
",num_issued"
",num_known"
",risk"
",start"
",deposit_end"
",value"
" FROM auditor_emergency"
" WHERE (row_id < $1)"
" AND ($2 OR suppressed is false)"
" ORDER BY row_id DESC"
" LIMIT $3"
);
PREPARE (pg,
"auditor_emergency_by_count_get_asc",
"SELECT"
" row_id"
",denompub_h"
",num_issued"
",num_known"
",risk"
",start"
",deposit_end"
",value"
" FROM auditor_emergency"
" WHERE (row_id > $1)"
" AND ($2 OR suppressed is false)"
" ORDER BY row_id ASC"
" LIMIT $3"
);
qs = GNUNET_PQ_eval_prepared_multi_select (pg->conn,
(limit > 0) ?
"auditor_emergency_by_count_get_asc"
: "auditor_emergency_by_count_get_desc",
params,
&emergency_by_count_cb,
&dcc);
if (qs > 0)
return dcc.qs;
GNUNET_break (GNUNET_DB_STATUS_HARD_ERROR != qs);
return qs;
}
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