core-legacy/endpoints/api_v1_controllers_STR_relays.c

#include <cJSON.h>
#include <macros.h>
#include <constants.h>
#include <endpoints/api_v1_controllers.h>
#include <logger.h>
#include <models/controller.h>
#include <models/tag.h>

void
api_v1_controllers_STR_relays_GET(struct mg_connection *nc, struct http_message *hm, endpoint_args_t *args, endpoint_response_t *response)
{
    (void)hm;
    (void)nc;

    uuid_t target_uid;
    if(uuid_parse(args[0].value.v_str, target_uid))
    {
        LOG_DEBUG("failed to unparse uid\n");

        static const char content[] = "given id was invalid";
        endpoint_response_text(response, 400, content, STRLEN(content));
        return;
    }

    controller_t* controller = controller_get_by_uid(target_uid);

    if(!controller)
    {
        LOG_DEBUG("could not find a controller for uid '%s'\n", args[0].value.v_str);

        static const char content[] = "no controller for id found";
        endpoint_response_text(response, 404, content, STRLEN(content));
        return;
    }
        
    relay_t** all_relays = relay_get_by_controller_id(controller->id);

    cJSON *json = cJSON_CreateArray();

    for(int i = 0; all_relays[i] != NULL; ++i)
    {
        cJSON *json_relay = relay_to_json(all_relays[i]);

        cJSON_AddItemToArray(json, json_relay);
    }

    endpoint_response_json(response, 200, json);
    cJSON_Delete(json);
    relay_free_list(all_relays);
    controller_free(controller);
}