// SPDX-License-Identifier: GPL-3.0-or-later

#ifndef NETDATA_RRD2JSON_H
#define NETDATA_RRD2JSON_H 1

#include "web/api/web_api.h"

#include "web/api/queries/rrdr.h"

#include "web/api/formatters/csv/csv.h"
#include "web/api/formatters/ssv/ssv.h"
#include "web/api/formatters/json/json.h"
#include "web/api/formatters/value/value.h"

#include "web/api/formatters/rrdset2json.h"
#include "web/api/formatters/charts2json.h"
#include "web/api/formatters/jsonwrap.h"

#include "web/server/web_client.h"

void rrd_stats_api_v1_chart(RRDSET *st, BUFFER *wb);

int data_query_execute(ONEWAYALLOC *owa, BUFFER *wb, struct query_target *qt, time_t *latest_timestamp);

void rrdr_json_group_by_labels(BUFFER *wb, const char *key, RRDR *r, RRDR_OPTIONS options);

int rrdset2value_api_v1(
        RRDSET *st
        , BUFFER *wb
        , NETDATA_DOUBLE *n
        , const char *dimensions
        , size_t points
        , time_t after
        , time_t before
        , RRDR_TIME_GROUPING group_method
        , const char *group_options
        , time_t resampling_time
        , uint32_t options
        , time_t *db_after
        , time_t *db_before
        , size_t *db_points_read
        , size_t *db_points_per_tier
        , size_t *result_points_generated
        , int *value_is_null
        , NETDATA_DOUBLE *anomaly_rate
        , time_t timeout
        , size_t tier
        , QUERY_SOURCE query_source
        , STORAGE_PRIORITY priority
);

// Same contract as rrdset2value_api_v1 but uses a caller-provided
// onewayalloc arena. Lets a caller that issues many back-to-back queries
// (e.g. evaluating all alerts on one host) amortise the mmap/munmap cost
// of owa create/destroy across the whole burst. The caller owns the owa's
// lifetime; between calls they should invoke onewayalloc_reset() to reclaim
// trailing pages and keep peak memory bounded. `owa` must be non-NULL.
int rrdset2value_api_v1_with_owa(
        ONEWAYALLOC *owa
        , RRDSET *st
        , BUFFER *wb
        , NETDATA_DOUBLE *n
        , const char *dimensions
        , size_t points
        , time_t after
        , time_t before
        , RRDR_TIME_GROUPING group_method
        , const char *group_options
        , time_t resampling_time
        , uint32_t options
        , time_t *db_after
        , time_t *db_before
        , size_t *db_points_read
        , size_t *db_points_per_tier
        , size_t *result_points_generated
        , int *value_is_null
        , NETDATA_DOUBLE *anomaly_rate
        , time_t timeout
        , size_t tier
        , QUERY_SOURCE query_source
        , STORAGE_PRIORITY priority
);

static inline bool rrdr_dimension_should_be_exposed(RRDR_DIMENSION_FLAGS rrdr_dim_flags, RRDR_OPTIONS options) {
    if(unlikely((options & RRDR_OPTION_RETURN_RAW) && (rrdr_dim_flags & RRDR_DIMENSION_QUERIED)))
        return true;

    if(unlikely(rrdr_dim_flags & RRDR_DIMENSION_HIDDEN)) return false;
    if(unlikely(!(rrdr_dim_flags & RRDR_DIMENSION_QUERIED))) return false;
    if(unlikely((options & RRDR_OPTION_NONZERO) && !(rrdr_dim_flags & RRDR_DIMENSION_NONZERO))) return false;

    return true;
}

#endif /* NETDATA_RRD2JSON_H */
