#ifndef ESP_NOW_COMM_H
#define ESP_NOW_COMM_H

#include "app_config.h"
#include "client_registry.h"
#include "esp_err.h"

esp_err_t esp_now_comm_init(const app_config_t *config);

/** Master: unicast accel deadzone to one slave (client_id is echoed for filtering). */
esp_err_t esp_now_comm_send_accel_deadzone(const uint8_t mac[CLIENT_MAC_LEN],
                                           uint32_t client_id, uint32_t deadzone);

/** Master: send minimal unicast test payload to verify master→slave path. */
esp_err_t esp_now_comm_send_unicast_test(const uint8_t mac[CLIENT_MAC_LEN],
                                         uint32_t seq);

/** Master → slave OTA (unicast). */
esp_err_t esp_now_comm_send_ota_start(const uint8_t mac[CLIENT_MAC_LEN],
                                      uint32_t total_size);
esp_err_t esp_now_comm_send_ota_payload(const uint8_t mac[CLIENT_MAC_LEN],
                                        uint32_t seq, const uint8_t *data,
                                        size_t len);
esp_err_t esp_now_comm_send_ota_end(const uint8_t mac[CLIENT_MAC_LEN]);

/** Slave → master OTA status. */
esp_err_t esp_now_comm_send_ota_status(const uint8_t master_mac[CLIENT_MAC_LEN],
                                       uint32_t status, uint32_t bytes_written,
                                       uint32_t error);

/** Slave: MAC of joined master (false if not joined). */
bool esp_now_comm_get_master_mac(uint8_t mac_out[CLIENT_MAC_LEN]);

#endif