hamqtt_component_internal.h

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/*
 * Copyright 2025 Ethan Barnes
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

 
#pragma once
#include "hamqtt_component.h"
 
typedef struct HAMQTT_Component_VTable HAMQTT_Component_VTable;
 
/* ----- V-Table (interface) ----- */

struct HAMQTT_Component_VTable {
    esp_err_t (*get_discovery_config)(HAMQTT_Component *component, 
                                      cJSON *root,
                                      const char *device_unique_id);
 
    void (*handle_mqtt_message)(HAMQTT_Component *component,
                                const char *topic,
                                const char *data);
 
    void (*update)(HAMQTT_Component *component,
                   esp_mqtt_client_handle_t mqtt_client);
 
    const char *(*get_unique_id)(HAMQTT_Component *component);
    
    const char *const *(*get_subscribed_topics)(HAMQTT_Component *component,
                                                size_t *count);
 
};
 
/* ----- Base Object ----- */

struct HAMQTT_Component {
    const HAMQTT_Component_VTable *v;
};