#ifndef EVSE_SESSION_H
#define EVSE_SESSION_H

#include <stdint.h>
#include <stdbool.h>
#include "freertos/FreeRTOS.h"

/**
 * @brief Charging session statistics
 */
typedef struct {
    TickType_t start_tick;   ///< tick when session began (debug/trace)
    uint32_t    duration_s;  ///< total duration in seconds (tempo real)
    uint32_t    energy_wh;   ///< total energy consumed in Wh (tempo real)
    uint32_t    avg_power_w; ///< average power in W
    bool        is_current;  ///< true if session still in progress
} evse_session_t;

void evse_session_init(void);
void evse_session_start(void);
void evse_session_end(void);

/**
 * @brief Periodic tick: called (e.g., each 1s) to accumulate energy from instant power.
 * Implementação usa esp_timer (não assume 1s exato).
 */
void evse_session_tick(void);

bool evse_session_get(evse_session_t *out);

#endif // EVSE_SESSION_H