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#include "swarmkv_common.h"
#include "swarmkv_utils.h"
#include "swarmkv_store.h"
#include "swarmkv_error.h"
#include "st_hyperloglog.h"
#include <stdlib.h>
#include <assert.h>
enum cmd_exec_result pfinit_command(struct swarmkv_module *mod_store, const struct swarmkv_cmd *cmd, struct swarmkv_reply **reply)
{
/* PFINIT key precison [TIME window-milliseconds] */
struct sobj *obj = NULL;
const sds key = cmd->argv[1];
long long precision = 0, time_window_ms = 0;
int ret = 0;
precision = strtod(cmd->argv[2], NULL);
if (precision < HLL_MIN_PRECISION || precision > HLL_MAX_PRECISION)
{
*reply = swarmkv_reply_new_error(error_arg_not_valid_integer, cmd->argv[2]);
return FINISHED;
}
if (cmd->argc == 5)
{
if (strncasecmp(cmd->argv[3], "TIME", 4) != 0)
{
*reply = swarmkv_reply_new_error(error_arg_string_should_be, cmd->argv[4], "TIME");
return FINISHED;
}
ret = str2integer(cmd->argv[4], &time_window_ms);
if (ret < 0)
{
*reply = swarmkv_reply_new_error(error_arg_not_valid_integer, cmd->argv[5]);
return FINISHED;
}
}
obj = store_lookup(mod_store, key);
if (!obj)
{
return NEED_KEY_ROUTE;
}
struct timeval now;
gettimeofday(&now, NULL);
if (obj->type == OBJ_TYPE_UNDEFINED)
{
assert(obj->raw == NULL);
obj->hll = ST_hyperloglog_new(precision, time_window_ms, now);
obj->type = OBJ_TYPE_HYPERLOGLOG;
*reply = swarmkv_reply_new_status("OK");
}
else
{
*reply = swarmkv_reply_new_array(0);
}
return FINISHED;
}
enum cmd_exec_result pfadd_command(struct swarmkv_module *mod_store, const struct swarmkv_cmd *cmd, struct swarmkv_reply **reply)
{
/*PFADD key item [item ...]*/
struct sobj *obj = NULL;
const sds key = cmd->argv[1];
obj = store_lookup(mod_store, key);
if (!obj)
{
return NEED_KEY_ROUTE;
}
struct timeval now;
gettimeofday(&now, NULL);
if (obj->type == OBJ_TYPE_UNDEFINED)
{
return handle_undefined_object(obj, reply);
}
else if (obj->type != OBJ_TYPE_HYPERLOGLOG)
{
*reply = swarmkv_reply_new_error(error_wrong_type);
return FINISHED;
}
int at_least_one_register_altered = 0;
for (int i = 0; i < cmd->argc - 2; i++)
{
int ret = 0;
ret = ST_hyperloglog_add(obj->hll, cmd->argv[i + 2], sdslen(cmd->argv[i + 2]), now);
if (ret)
{
at_least_one_register_altered = 1;
}
}
store_mark_object_as_modified(mod_store, obj);
*reply = swarmkv_reply_new_integer(at_least_one_register_altered);
return FINISHED;
}
enum cmd_exec_result pfcount_command(struct swarmkv_module *mod_store, const struct swarmkv_cmd *cmd, struct swarmkv_reply **reply)
{
/*PFCOUNT key*/
struct sobj *obj = NULL;
const sds key = cmd->argv[1];
obj = store_lookup(mod_store, key);
if (!obj)
{
return NEED_KEY_ROUTE;
}
struct timeval now;
gettimeofday(&now, NULL);
if (obj->type == OBJ_TYPE_UNDEFINED)
{
return handle_undefined_object(obj, reply);
}
else if (obj->type != OBJ_TYPE_HYPERLOGLOG)
{
*reply = swarmkv_reply_new_error(error_wrong_type);
return FINISHED;
}
long long count = 0;
count = ST_hyperloglog_count(obj->hll, now);
*reply = swarmkv_reply_new_integer(count);
return FINISHED;
}
enum cmd_exec_result pfinfo_command(struct swarmkv_module *mod_store, const struct swarmkv_cmd *cmd, struct swarmkv_reply **reply)
{
/*PFINFO key*/
struct sobj *obj = NULL;
const sds key = cmd->argv[1];
obj = store_lookup(mod_store, key);
if (!obj)
{
return NEED_KEY_ROUTE;
}
struct timeval now;
gettimeofday(&now, NULL);
if (obj->type == OBJ_TYPE_UNDEFINED)
{
return handle_undefined_object(obj, reply);
}
else if (obj->type != OBJ_TYPE_HYPERLOGLOG)
{
*reply = swarmkv_reply_new_error(error_wrong_type);
return FINISHED;
}
struct ST_hyperloglog_info info;
ST_hyperloglog_info(obj->hll, &info);
int i = 0;
*reply = swarmkv_reply_new_array(6);
(*reply)->elements[i++] = swarmkv_reply_new_string_fmt("Error");
(*reply)->elements[i++] = swarmkv_reply_new_double(info.error);
(*reply)->elements[i++] = swarmkv_reply_new_string_fmt("Precision");
(*reply)->elements[i++] = swarmkv_reply_new_integer(info.precision);
(*reply)->elements[i++] = swarmkv_reply_new_string_fmt("TimeWindowMs");
(*reply)->elements[i++] = swarmkv_reply_new_integer(info.time_window_ms);
assert(i == 6);
return FINISHED;
}
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