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 http_message *hm, endpoint_args_t *args, endpoint_response_t *response)
{
    (void)hm;

    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";
        response->status_code = 400;
        response->content_type = "text/plain";
        response->content_length = STRLEN(content);;
        response->content = content;
        response->alloced_content = false;
        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";
        response->status_code = 404;
        response->content_type = "text/plain";
        response->content_length = STRLEN(content);;
        response->content = content;
        response->alloced_content = false;
        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);
    }

    char *json_str = cJSON_Print(json);
    if (json_str == NULL)
    {
        LOG_ERROR("failed to print relays json\n");

        static const char content[] = "failed to print json for relays";
        response->status_code = 500;
        response->content_type = "text/plain";
        response->content_length = STRLEN(content);;
        response->content = content;
        response->alloced_content = false;
    }
    else
    {
        response->status_code = 200;
        response->content_type = "application/json";
        response->content_length = strlen(json_str);
        response->content = json_str;
        response->alloced_content = true;
    }
    cJSON_Delete(json);
    relay_free_list(all_relays);
    controller_free(controller);
}