chargeflow/projeto_parte1.c

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// === Início de: main/main.c ===
#include <string.h>
#include <stdbool.h>
#include <inttypes.h>

#include "freertos/FreeRTOS.h"
#include "freertos/task.h"
#include "freertos/event_groups.h"

#include "esp_log.h"
#include "esp_err.h"
#include "esp_event.h"
#include "esp_netif.h"
#include "esp_spiffs.h"
#include "esp_system.h"
#include "nvs_flash.h"
#include "driver/gpio.h"

#include "network.h"
#include "board_config.h"
#include "logger.h"
#include "rest_main.h"

#include "peripherals.h"
#include "protocols.h"
#include "evse_manager.h"
#include "evse_core.h"
#include "auth.h"
#include "loadbalancer.h"
#include "meter_manager.h"
#include "buzzer.h"
#include "evse_link.h"
#include "ocpp.h"

#define EVSE_MANAGER_TICK_PERIOD_MS 1000
#define AP_CONNECTION_TIMEOUT 120000
#define RESET_HOLD_TIME 30000
#define DEBOUNCE_TIME_MS 50

#define PRESS_BIT BIT0
#define RELEASED_BIT BIT1

static const char *TAG = "app_main";

static TaskHandle_t user_input_task;
static TickType_t press_tick = 0;
static TickType_t last_interrupt_tick = 0;
static bool pressed = false;

//
// File system (SPIFFS) init and info
//
static void fs_info(esp_vfs_spiffs_conf_t *conf)
{
    size_t total = 0, used = 0;
    esp_err_t ret = esp_spiffs_info(conf->partition_label, &total, &used);
    if (ret == ESP_OK)
        ESP_LOGI(TAG, "Partition %s: total: %d, used: %d", conf->partition_label, total, used);
    else
        ESP_LOGE(TAG, "Failed to get SPIFFS info: %s", esp_err_to_name(ret));
}

static void fs_init(void)
{
    esp_vfs_spiffs_conf_t cfg_conf = {
        .base_path = "/cfg",
        .partition_label = "cfg",
        .max_files = 1,
        .format_if_mount_failed = false};

    esp_vfs_spiffs_conf_t data_conf = {
        .base_path = "/data",
        .partition_label = "data",
        .max_files = 5,
        .format_if_mount_failed = true};

    ESP_ERROR_CHECK(esp_vfs_spiffs_register(&cfg_conf));
    ESP_ERROR_CHECK(esp_vfs_spiffs_register(&data_conf));

    fs_info(&cfg_conf);
    fs_info(&data_conf);
}
//
// Wi-Fi event monitoring task
//
static void wifi_event_task_func(void *param)
{
    EventBits_t mode_bits;
    for (;;)
    {
        // Wait indefinitely until either AP or STA mode is entered
        mode_bits = xEventGroupWaitBits(
            wifi_event_group,
            WIFI_AP_MODE_BIT | WIFI_STA_MODE_BIT,
            pdFALSE, // do not clear bits on exit
            pdFALSE, // wait for any bit
            portMAX_DELAY);

        if (mode_bits & WIFI_AP_MODE_BIT)
        {
            // We're in AP mode: wait for a client to connect within the timeout
            if (xEventGroupWaitBits(
                    wifi_event_group,
                    WIFI_AP_CONNECTED_BIT,
                    pdFALSE,
                    pdFALSE,
                    pdMS_TO_TICKS(AP_CONNECTION_TIMEOUT)) &
                WIFI_AP_CONNECTED_BIT)
            {
                // Once connected, block until the client disconnects
                xEventGroupWaitBits(
                    wifi_event_group,
                    WIFI_AP_DISCONNECTED_BIT,
                    pdFALSE,
                    pdFALSE,
                    portMAX_DELAY);
            }
            else
            {
                // Timeout expired with no client—optionally stop the AP
                if (xEventGroupGetBits(wifi_event_group) & WIFI_AP_MODE_BIT)
                {
                    // wifi_ap_stop();
                }
            }
        }
        else if (mode_bits & WIFI_STA_MODE_BIT)
        {
            // We're in STA mode: block until disconnected from the AP
            xEventGroupWaitBits(
                wifi_event_group,
                WIFI_STA_DISCONNECTED_BIT,
                pdFALSE,
                pdFALSE,
                portMAX_DELAY);
        }

        // Prevent this task from hogging the CPU when idle
        // vTaskDelay(pdMS_TO_TICKS(10));
    }
}

//
// Button press handler
//
static void handle_button_press(void)
{
    // If not already in AP mode, start it
    if (!(xEventGroupGetBits(wifi_event_group) & WIFI_AP_MODE_BIT))
    {
        ESP_LOGI(TAG, "Starting Wi-Fi AP mode");
        wifi_ap_start();
    }
}

// Task to handle button press/release notifications
static void user_input_task_func(void *param)
{
    uint32_t notification;
    for (;;)
    {
        // Wait for notification bits from ISR
        if (xTaskNotifyWait(
                0,          // do not clear any bits on entry
                UINT32_MAX, // clear all bits on exit
                &notification,
                portMAX_DELAY))
        {
            // Handle button press event
            if (notification & PRESS_BIT)
            {
                press_tick = xTaskGetTickCount();
                pressed = true;
                ESP_LOGI(TAG, "Button Pressed");
                handle_button_press(); // só aqui
            }
            if ((notification & RELEASED_BIT) && pressed)
            {
                pressed = false;
                TickType_t held = xTaskGetTickCount() - press_tick;
                ESP_LOGI(TAG, "Button Released (held %u ms)", (unsigned)pdTICKS_TO_MS(held));
                if (held >= pdMS_TO_TICKS(RESET_HOLD_TIME))
                {
                    ESP_LOGW(TAG, "Long press: erasing NVS + reboot");
                    nvs_flash_erase();
                    esp_restart();
                }
            }
        }
    }
}

// ISR for button GPIO interrupt (active-low)
static void IRAM_ATTR button_isr_handler(void *arg)
{
    BaseType_t higher_task_woken = pdFALSE;
    TickType_t now = xTaskGetTickCountFromISR();

    // Debounce: ignore interrupts occurring too close together
    if (now - last_interrupt_tick < pdMS_TO_TICKS(DEBOUNCE_TIME_MS))
    {
        return;
    }
    last_interrupt_tick = now;

    // Read GPIO level: 0 = button pressed, 1 = button released
    int level = gpio_get_level(board_config.button_wifi_gpio);
    if (level == 0)
    {
        // Notify task: button pressed
        xTaskNotifyFromISR(
            user_input_task,
            PRESS_BIT,
            eSetBits,
            &higher_task_woken);
    }
    else
    {
        // Notify task: button released
        xTaskNotifyFromISR(
            user_input_task,
            RELEASED_BIT,
            eSetBits,
            &higher_task_woken);
    }

    // Yield to higher priority task if unblocked
    if (higher_task_woken)
    {
        portYIELD_FROM_ISR();
    }
}

static void button_init(void)
{
    gpio_config_t conf = {
        .pin_bit_mask = BIT64(board_config.button_wifi_gpio),
        .mode = GPIO_MODE_INPUT,
        .pull_down_en = GPIO_PULLDOWN_DISABLE,
        .pull_up_en = GPIO_PULLUP_ENABLE,
        .intr_type = GPIO_INTR_ANYEDGE};
    ESP_ERROR_CHECK(gpio_config(&conf));
    ESP_ERROR_CHECK(gpio_isr_handler_add(board_config.button_wifi_gpio, button_isr_handler, NULL));
}

//
// Inicialização dos módulos do sistema
//
static void init_modules(void)
{
    peripherals_init();
    wifi_ini();
    // api_init();
    buzzer_init();
    ESP_ERROR_CHECK(rest_server_init("/data"));
    protocols_init();
    evse_manager_init();
    evse_init(); // Cria a task para FSM
    button_init();
    auth_init();
    loadbalancer_init();
    meter_manager_init();
    meter_manager_start();
    evse_link_init();
    ocpp_start();

    // wifi_ap_start();
    // Outros módulos (descomente conforme necessário)
    // meter_init();
    // ocpp_start();
    // orno_modbus_start();
    // currentshaper_start();
    // initWiegand();
    // meter_zigbee_start();
    // master_sync_start();
    // slave_sync_start();
}

//
// Função principal do firmware
//
void app_main(void)
{
    logger_init();
    esp_log_set_vprintf(logger_vprintf);

    esp_reset_reason_t reason = esp_reset_reason();
    ESP_LOGI(TAG, "Reset reason: %d", reason);

    esp_err_t ret = nvs_flash_init();
    if (ret == ESP_ERR_NVS_NO_FREE_PAGES || ret == ESP_ERR_NVS_NEW_VERSION_FOUND)
    {
        ESP_LOGW(TAG, "Erasing NVS flash");
        ESP_ERROR_CHECK(nvs_flash_erase());
        ret = nvs_flash_init();
    }
    ESP_ERROR_CHECK(ret);

    fs_init();
    ESP_ERROR_CHECK(esp_netif_init());
    ESP_ERROR_CHECK(esp_event_loop_create_default());
    ESP_ERROR_CHECK(gpio_install_isr_service(0));

    board_config_load();
    init_modules();

    xTaskCreate(wifi_event_task_func, "wifi_event_task", 8 * 1024, NULL, 3, NULL);
    xTaskCreate(user_input_task_func, "user_input_task", 4 * 1024, NULL, 3, &user_input_task);
}

// === Fim de: main/main.c ===


// === Início de: components/ocpp/src/ocpp_events.c ===
#include "ocpp_events.h"

/* Define a base, como em components/auth/src/auth_events.c */
ESP_EVENT_DEFINE_BASE(OCPP_EVENTS);

// === Fim de: components/ocpp/src/ocpp_events.c ===


// === Início de: components/ocpp/src/ocpp.c ===
// components/ocpp/src/ocpp.c
#include <string.h>
#include <stdlib.h>
#include <ctype.h>
#include <inttypes.h>

#include "esp_log.h"
#include "esp_err.h"

#include "ocpp.h"
#include "ocpp_events.h"

#include "esp_wifi.h"
#include "nvs.h"
#include "nvs_flash.h"

#include "evse_error.h"
#include "auth_events.h"
#include "evse_events.h"
#include "evse_state.h"
#include "meter_events.h"
#include "esp_timer.h"
#include <math.h>

/* MicroOcpp includes */
#include <mongoose.h>
#include <MicroOcpp_c.h>               // C-facade of MicroOcpp
#include <MicroOcppMongooseClient_c.h> // WebSocket integration for ESP-IDF

#define NVS_NAMESPACE "ocpp"
#define NVS_OCPP_ENABLED "enabled"
#define NVS_OCPP_SERVER "ocpp_server"
#define NVS_OCPP_CHARGE_ID "charge_id"

static const char *TAG = "ocpp";

static bool enabled = false;

static TaskHandle_t ocpp_task = NULL;

static struct mg_mgr mgr;                   // Event manager
static OCPP_Connection *g_ocpp_conn = NULL; // Para shutdown limpo

static esp_event_handler_instance_t s_auth_verify_inst = NULL;

// Flags refletindo o estado do EVSE (atualizadas por eventos)
static volatile bool s_ev_plugged = false;
static volatile bool s_ev_ready = false;

static esp_event_handler_instance_t s_evse_state_inst = NULL;

// Flags de config (vindas de EVSE_EVENTS)
static volatile bool s_evse_enabled = true;
static volatile bool s_evse_available = true;

static esp_event_handler_instance_t s_evse_enable_inst = NULL;
static esp_event_handler_instance_t s_evse_available_inst = NULL;

// --- cache de medições vindas de METER_EVENT_DATA_READY ---
typedef struct
{
    // dados por fase
    float vrms[3];
    float irms[3];
    int32_t watt[3]; // ativo por fase (W)
    float frequency;
    float power_factor;
    // acumulados
    float total_energy_kWh;
    // derivados práticos
    int32_t sum_watt;  // soma das 3 fases
    float avg_voltage; // média das 3 fases
    float sum_current; // soma das 3 fases
    // flag de validade
    bool have_data;
} ocpp_meter_cache_t;

static ocpp_meter_cache_t s_meter = {0};
static portMUX_TYPE s_meter_mux = portMUX_INITIALIZER_UNLOCKED;
static esp_event_handler_instance_t s_meter_inst = NULL;

/* =========================
 *    Task / Main Loop
 * ========================= *
 */
static void ocpp_task_func(void *param)
{
    while (true)
    {
        if (enabled)
        {
            mg_mgr_poll(&mgr, 100);
            ocpp_loop();

            bool operative = ocpp_isOperative();
            if (operative != s_evse_enabled)
            {
                s_evse_enabled = operative;

                // >>> enviar OCPP_EVENT (remoto → local)
                ocpp_operative_event_t ev = {
                    .operative = operative,
                    .timestamp_us = esp_timer_get_time()};
                esp_event_post(OCPP_EVENTS,
                               OCPP_EVENT_OPERATIVE_UPDATED,
                               &ev, sizeof(ev),
                               portMAX_DELAY);

                ESP_LOGI(TAG, "[OCPP] ChangeAvailability remoto → operative=%d",
                         (int)operative);
            }
        }
        else
        {
            vTaskDelay(pdMS_TO_TICKS(500));
        }
    }
}

/* =========================
 *         NVS GETs
 * ========================= */
bool ocpp_get_enabled(void)
{
    nvs_handle_t h;
    esp_err_t err = nvs_open(NVS_NAMESPACE, NVS_READONLY, &h);
    if (err == ESP_ERR_NVS_NOT_FOUND)
    {
        // namespace ainda não existe -> default: disabled
        return false;
    }
    if (err != ESP_OK)
    {
        ESP_LOGW(TAG, "nvs_open(%s) RO failed: %s", NVS_NAMESPACE, esp_err_to_name(err));
        return false;
    }

    uint8_t value = 0;
    err = nvs_get_u8(h, NVS_OCPP_ENABLED, &value);
    nvs_close(h);

    if (err == ESP_ERR_NVS_NOT_FOUND)
        return false; // default
    if (err != ESP_OK)
    {
        ESP_LOGW(TAG, "nvs_get_u8(enabled) failed: %s", esp_err_to_name(err));
        return false;
    }
    return value != 0;
}

void ocpp_get_server(char *value /* out, size>=64 */)
{
    if (!value)
        return;
    value[0] = '\0';

    nvs_handle_t h;
    esp_err_t err = nvs_open(NVS_NAMESPACE, NVS_READONLY, &h);
    if (err == ESP_ERR_NVS_NOT_FOUND)
    {
        // namespace ainda não existe -> default: ""
        return;
    }
    if (err != ESP_OK)
    {
        ESP_LOGW(TAG, "nvs_open(%s) RO failed: %s", NVS_NAMESPACE, esp_err_to_name(err));
        return;
    }

    size_t len = 64;
    err = nvs_get_str(h, NVS_OCPP_SERVER, value, &len);
    nvs_close(h);

    if (err == ESP_ERR_NVS_NOT_FOUND)
    {
        value[0] = '\0';
        return;
    }
    if (err != ESP_OK)
    {
        ESP_LOGW(TAG, "nvs_get_str(server) failed: %s", esp_err_to_name(err));
        value[0] = '\0';
    }
}

void ocpp_get_charge_id(char *value /* out, size>=64 */)
{
    if (!value)
        return;
    value[0] = '\0';

    nvs_handle_t h;
    esp_err_t err = nvs_open(NVS_NAMESPACE, NVS_READONLY, &h);
    if (err == ESP_ERR_NVS_NOT_FOUND)
    {
        // namespace ainda não existe -> default: ""
        return;
    }
    if (err != ESP_OK)
    {
        ESP_LOGW(TAG, "nvs_open(%s) RO failed: %s", NVS_NAMESPACE, esp_err_to_name(err));
        return;
    }

    size_t len = 64;
    err = nvs_get_str(h, NVS_OCPP_CHARGE_ID, value, &len);
    nvs_close(h);

    if (err == ESP_ERR_NVS_NOT_FOUND)
    {
        value[0] = '\0';
        return;
    }
    if (err != ESP_OK)
    {
        ESP_LOGW(TAG, "nvs_get_str(charge_id) failed: %s", esp_err_to_name(err));
        value[0] = '\0';
    }
}

/* =========================
 *         NVS SETs
 * ========================= */
// --- SETTERS: RW (cria o namespace na 1ª escrita), commit e fecha ---
void ocpp_set_enabled(bool value)
{
    nvs_handle_t h;
    esp_err_t err = nvs_open(NVS_NAMESPACE, NVS_READWRITE, &h);
    if (err != ESP_OK)
    {
        ESP_LOGE(TAG, "nvs_open(%s) RW failed: %s", NVS_NAMESPACE, esp_err_to_name(err));
        return;
    }
    ESP_LOGI(TAG, "set enabled %d", value);
    ESP_ERROR_CHECK(nvs_set_u8(h, NVS_OCPP_ENABLED, value ? 1 : 0));
    ESP_ERROR_CHECK(nvs_commit(h));
    nvs_close(h);
    enabled = value;
}

void ocpp_set_server(char *value)
{
    nvs_handle_t h;
    esp_err_t err = nvs_open(NVS_NAMESPACE, NVS_READWRITE, &h);
    if (err != ESP_OK)
    {
        ESP_LOGE(TAG, "nvs_open(%s) RW failed: %s", NVS_NAMESPACE, esp_err_to_name(err));
        return;
    }
    ESP_LOGI(TAG, "set server %s", value ? value : "(null)");
    ESP_ERROR_CHECK(nvs_set_str(h, NVS_OCPP_SERVER, value ? value : ""));
    ESP_ERROR_CHECK(nvs_commit(h));
    nvs_close(h);
}

void ocpp_set_charge_id(char *value)
{
    nvs_handle_t h;
    esp_err_t err = nvs_open(NVS_NAMESPACE, NVS_READWRITE, &h);
    if (err != ESP_OK)
    {
        ESP_LOGE(TAG, "nvs_open(%s) RW failed: %s", NVS_NAMESPACE, esp_err_to_name(err));
        return;
    }
    ESP_LOGI(TAG, "set charge_id %s", value ? value : "(null)");
    ESP_ERROR_CHECK(nvs_set_str(h, NVS_OCPP_CHARGE_ID, value ? value : ""));
    ESP_ERROR_CHECK(nvs_commit(h));
    nvs_close(h);
}

static void ocpp_on_auth_verify(void *arg, esp_event_base_t base, int32_t id, void *event_data)
{
    const auth_tag_verify_event_t *rq = (const auth_tag_verify_event_t *)event_data;
    if (!rq)
        return;

    // Sanitizar/copiar a idTag
    char idtag[AUTH_TAG_MAX_LEN];
    if (rq->tag[0] == '\0')
    {
        strncpy(idtag, "IDTAG", sizeof(idtag));
        idtag[sizeof(idtag) - 1] = '\0';
    }
    else
    {
        strncpy(idtag, rq->tag, sizeof(idtag) - 1);
        idtag[sizeof(idtag) - 1] = '\0';
    }

    ESP_LOGI(TAG, "AUTH_EVENT_TAG_VERIFY: tag=%s req_id=%u", idtag, (unsigned)rq->req_id);

    // Se não está pronto, apenas regista e sai (podes adaptar conforme política)
    if (!enabled || g_ocpp_conn == NULL)
    {
        ESP_LOGW(TAG, "OCPP not ready (enabled=%d, conn=%p) – ignoring verify", enabled, (void *)g_ocpp_conn);
        return;
    }

    // Regra pedida:
    // - se já existe transação/charge em andamento -> terminar
    // - senão -> iniciar com a IDTAG recebida
    if (ocpp_isTransactionActive())
    {
        ESP_LOGI(TAG, "Transaction active -> ocpp_end_transaction(\"%s\")", idtag);
        ocpp_endTransaction(idtag, "Local");
    }
    else
    {
        ESP_LOGI(TAG, "No active transaction -> ocpp_begin_transaction(\"%s\")", idtag);
        ocpp_beginTransaction(idtag);
    }
}

static void evse_event_handler(void *arg, esp_event_base_t base, int32_t id, void *data)
{
    if (base != EVSE_EVENTS || id != EVSE_EVENT_STATE_CHANGED || data == NULL)
        return;

    const evse_state_event_data_t *evt = (const evse_state_event_data_t *)data;
    ESP_LOGI(TAG, "EVSE event received: state = %d", (int)evt->state);

    switch (evt->state)
    {
    case EVSE_STATE_EVENT_IDLE:
        s_ev_plugged = false;
        s_ev_ready = false;
        break;

    case EVSE_STATE_EVENT_WAITING:
        s_ev_plugged = true;
        s_ev_ready = false;
        break;

    case EVSE_STATE_EVENT_CHARGING:
        s_ev_plugged = true;
        s_ev_ready = true; // EV está a pedir/receber energia
        break;

    case EVSE_STATE_EVENT_FAULT:
    default:
        // em falha, considera não pronto (mantém plugged se quiseres)
        s_ev_ready = false;
        break;
    }
}

static void evse_enable_available_handler(void *arg, esp_event_base_t base, int32_t id, void *data)
{
    if (base != EVSE_EVENTS || data == NULL)
        return;

    if (id == EVSE_EVENT_ENABLE_UPDATED)
    {
        const evse_enable_event_data_t *e = (const evse_enable_event_data_t *)data;
        s_evse_enabled = e->enabled;
        ESP_LOGI(TAG, "[EVSE] ENABLE_UPDATED: enabled=%d (ts=%lld)", (int)e->enabled, (long long)e->timestamp_us);
        return;
    }

    if (id == EVSE_EVENT_AVAILABLE_UPDATED)
    {
        const evse_available_event_data_t *e = (const evse_available_event_data_t *)data;
        s_evse_available = e->available;
        ESP_LOGI(TAG, "[EVSE] AVAILABLE_UPDATED: available=%d (ts=%lld)", (int)e->available, (long long)e->timestamp_us);
        return;
    }
}

static void on_meter_event(void *arg, esp_event_base_t base, int32_t id, void *data)
{
    if (base != METER_EVENT || id != METER_EVENT_DATA_READY || !data)
        return;

    const meter_event_data_t *evt = (const meter_event_data_t *)data;

    // Só queremos o medidor do EVSE (não o GRID)
    if (!evt->source || strcmp(evt->source, "EVSE") != 0)
        return;

    // Derivados simples
    int32_t sum_w = (int32_t)evt->watt[0] + (int32_t)evt->watt[1] + (int32_t)evt->watt[2];
    float avg_v = (evt->vrms[0] + evt->vrms[1] + evt->vrms[2]) / 3.0f;
    float sum_i = evt->irms[0] + evt->irms[1] + evt->irms[2];

    portENTER_CRITICAL(&s_meter_mux);
    memcpy(s_meter.vrms, evt->vrms, sizeof(s_meter.vrms));
    memcpy(s_meter.irms, evt->irms, sizeof(s_meter.irms));
    s_meter.watt[0] = evt->watt[0];
    s_meter.watt[1] = evt->watt[1];
    s_meter.watt[2] = evt->watt[2];
    s_meter.frequency = evt->frequency;
    s_meter.power_factor = evt->power_factor;
    s_meter.total_energy_kWh = evt->total_energy; // já vem em kWh segundo o teu .h
    s_meter.sum_watt = sum_w;
    s_meter.avg_voltage = avg_v;
    s_meter.sum_current = sum_i;
    s_meter.have_data = true;
    portEXIT_CRITICAL(&s_meter_mux);
}

/* =========================
 *     MicroOCPP Inputs/CBs
 * ========================= */
bool setConnectorPluggedInput(void)
{
    return s_ev_plugged; // EV fisicamente ligado
}

bool setEvReadyInput(void)
{
    return s_ev_ready; // EV pede / pronto a carregar
}

bool setEvseReadyInput(void)
{
    // EVSE autorizado / operacional
    return s_evse_enabled && s_evse_available;
}

float setPowerMeterInput(void)
{
    int32_t w = 0;
    bool have = false;

    portENTER_CRITICAL(&s_meter_mux);
    have = s_meter.have_data;
    if (have)
        w = s_meter.sum_watt;
    portEXIT_CRITICAL(&s_meter_mux);

    if (!have)
    {
        ESP_LOGW(TAG, "[METER] PowerMeterInput: no data (return 0)");
    }
    else
    {
        ESP_LOGD(TAG, "[METER] PowerMeterInput: %" PRId32 " W", w);
    }
    return (float)w;
}

float setEnergyMeterInput(void)
{
    float kwh = 0.0f;
    bool have = false;

    portENTER_CRITICAL(&s_meter_mux);
    have = s_meter.have_data;
    if (have)
        kwh = s_meter.total_energy_kWh;
    portEXIT_CRITICAL(&s_meter_mux);

    float wh = kwh * 1000.0f;

    if (!have)
    {
        ESP_LOGW(TAG, "[METER] EnergyMeterInput: no data (return 0)");
    }
    else
    {
        ESP_LOGD(TAG, "[METER] EnergyMeterInput: %.3f kWh (%.1f Wh)", kwh, wh);
    }
    return wh; // agora devolve Wh
}

int setEnergyInput(void)
{
    float energy_kWh = setEnergyMeterInput();          // kWh
    int wh = (int)lrintf((double)energy_kWh * 1000.0); // Wh arredondado
    ESP_LOGD(TAG, "[METER] EnergyInput: %.3f kWh -> %d Wh", energy_kWh, wh);
    return wh;
}

float setCurrentInput(void)
{
    float a = 0.0f;
    bool have = false;

    portENTER_CRITICAL(&s_meter_mux);
    have = s_meter.have_data;
    if (have)
        a = s_meter.sum_current;
    portEXIT_CRITICAL(&s_meter_mux);

    if (!have)
    {
        ESP_LOGW(TAG, "[METER] CurrentInput: no data (return 0)");
    }
    else
    {
        ESP_LOGD(TAG, "[METER] CurrentInput: %.2f A (total)", a);
    }
    return a;
}

float setVoltageInput(void)
{
    float v = 0.0f;
    bool have = false;

    portENTER_CRITICAL(&s_meter_mux);
    have = s_meter.have_data;
    if (have)
        v = s_meter.avg_voltage;
    portEXIT_CRITICAL(&s_meter_mux);

    if (!have)
    {
        ESP_LOGW(TAG, "[METER] VoltageInput: no data (return 0)");
    }
    else
    {
        ESP_LOGD(TAG, "[METER] VoltageInput: %.1f V (avg)", v);
    }
    return v;
}

float setPowerInput(void)
{
    float w = setPowerMeterInput(); // alias
    ESP_LOGD(TAG, "[METER] PowerInput: %.1f W", w);
    return w;
}

float setTemperatureInput(void)
{
    ESP_LOGD(TAG, "TemperatureInput");
    return 16.5f;
}

void setSmartChargingCurrentOutput(float limit)
{
    ESP_LOGI(TAG, "SmartChargingCurrentOutput: %.0f", limit);
}

void setSmartChargingPowerOutput(float limit)
{
    ESP_LOGI(TAG, "SmartChargingPowerOutput: %.0f", limit);
}

void setSmartChargingOutput(float power, float current, int nphases)
{
    ESP_LOGI(TAG, "SmartChargingOutput: P=%.0f W, I=%.0f A, phases=%d", power, current, nphases);
}

void setGetConfiguration(const char *payload, size_t len)
{
    ESP_LOGI(TAG, "GetConfiguration: %.*s (%u)", (int)len, payload, (unsigned)len);
}

void setStartTransaction(const char *payload, size_t len)
{
    ESP_LOGI(TAG, "StartTransaction: %.*s (%u)", (int)len, payload, (unsigned)len);
}

void setChangeConfiguration(const char *payload, size_t len)
{
    ESP_LOGI(TAG, "ChangeConfiguration: %.*s (%u)", (int)len, payload, (unsigned)len);
}

void OnResetExecute(bool state)
{
    ESP_LOGI(TAG, "OnResetExecute (state=%d)", state);
    esp_restart();
}

bool setOccupiedInput(void)
{
    ESP_LOGD(TAG, "setOccupiedInput");
    return false;
}

bool setStartTxReadyInput(void)
{
    ESP_LOGD(TAG, "setStartTxReadyInput");
    return true;
}

bool setStopTxReadyInput(void)
{
    ESP_LOGD(TAG, "setStopTxReadyInput");
    return true;
}

bool setOnResetNotify(bool value)
{
    ESP_LOGI(TAG, "setOnResetNotify %d", value);
    return true;
}

void notificationOutput(OCPP_Transaction *transaction, enum OCPP_TxNotification txNotification)
{
    ESP_LOGI(TAG, "TxNotification: %d", txNotification);

    switch (txNotification)
    {
    case Authorized:
        ESP_LOGI(TAG, "Authorized");
        // TODO: send event ocpp Authorized
        // evse_authorize();

        // Opcional: enviar idTag no payload (se tiveres como obter do transaction)
        // ocpp_idtag_event_t ev = {0};
        // strlcpy(ev.idTag, ocpp_tx_get_idTag(transaction), sizeof(ev.idTag));
        // esp_event_post(OCPP_EVENTS, OCPP_EVENT_AUTHORIZED, &ev, sizeof(ev), portMAX_DELAY);

        esp_event_post(OCPP_EVENTS, OCPP_EVENT_AUTHORIZED, NULL, 0, portMAX_DELAY);
        break;

    case AuthorizationRejected:
        ESP_LOGI(TAG, "AuthorizationRejected");
        // TODO: send event ocpp AuthorizationRejected

        // ocpp_idtag_event_t ev = {0};
        // strlcpy(ev.idTag, ocpp_tx_get_idTag(transaction), sizeof(ev.idTag));
        // esp_event_post(OCPP_EVENTS, OCPP_EVENT_AUTH_REJECTED, &ev, sizeof(ev), portMAX_DELAY);

        esp_event_post(OCPP_EVENTS, OCPP_EVENT_AUTH_REJECTED, NULL, 0, portMAX_DELAY);
        break;

    case AuthorizationTimeout:
        ESP_LOGI(TAG, "AuthorizationTimeout");
        // TODO: send event ocpp AuthorizationTimeout
        esp_event_post(OCPP_EVENTS, OCPP_EVENT_AUTH_TIMEOUT, NULL, 0, portMAX_DELAY);
        break;

    case ReservationConflict:
        ESP_LOGI(TAG, "ReservationConflict");
        // TODO: send event ocpp ReservationConflict
        // (Se quiseres, cria um ID específico no enum e publica aqui)
        break;

    case ConnectionTimeout:
        ESP_LOGI(TAG, "ConnectionTimeout");
        // TODO: send event ocpp ConnectionTimeout
        // (Se quiseres, cria um ID específico no enum e publica aqui)
        break;

    case DeAuthorized:
        ESP_LOGI(TAG, "DeAuthorized");
        // TODO: send event ocpp DeAuthorized
        // TODO: adapt to the new interface
        // evse_set_authorized(false);
        // evse_set_limit_reached(2);

        // Poderias mapear para AUTH_REJECTED ou STOP_TX por política da aplicação:
        // esp_event_post(OCPP_EVENTS, OCPP_EVENT_AUTH_REJECTED, NULL, 0, portMAX_DELAY);
        break;

    case RemoteStart:
        ESP_LOGI(TAG, "RemoteStart");
        // TODO: send event ocpp RemoteStart

        // ocpp_idtag_event_t ev = {0};
        // strlcpy(ev.idTag, ocpp_tx_get_idTag(transaction), sizeof(ev.idTag));
        // esp_event_post(OCPP_EVENTS, OCPP_EVENT_REMOTE_START, &ev, sizeof(ev), portMAX_DELAY);

        esp_event_post(OCPP_EVENTS, OCPP_EVENT_REMOTE_START, NULL, 0, portMAX_DELAY);
        break;

    case RemoteStop:
        ESP_LOGI(TAG, "RemoteStop");
        // TODO: send event ocpp RemoteStop
        esp_event_post(OCPP_EVENTS, OCPP_EVENT_REMOTE_STOP, NULL, 0, portMAX_DELAY);
        break;

    case StartTx:
        ESP_LOGI(TAG, "StartTx");
        // TODO: send event ocpp StartTx

        // ocpp_tx_event_t tx = { .tx_id = ocpp_tx_get_id(transaction) };
        // esp_event_post(OCPP_EVENTS, OCPP_EVENT_START_TX, &tx, sizeof(tx), portMAX_DELAY);

        esp_event_post(OCPP_EVENTS, OCPP_EVENT_START_TX, NULL, 0, portMAX_DELAY);
        break;

    case StopTx:
        ESP_LOGI(TAG, "StopTx");
        // TODO: send event ocpp StopTx
        // TODO: adapt to the new interface
        // evse_set_authorized(false);
        // evse_set_limit_reached(2);

        // ocpp_reason_event_t rs = {0};
        // strlcpy(rs.reason, "Local", sizeof(rs.reason));
        // esp_event_post(OCPP_EVENTS, OCPP_EVENT_STOP_TX, &rs, sizeof(rs), portMAX_DELAY);

        esp_event_post(OCPP_EVENTS, OCPP_EVENT_STOP_TX, NULL, 0, portMAX_DELAY);
        break;
    }
}

// Estado de conexão simples do OCPP
bool ocpp_is_connected(void)
{
    // Se quiser algo mais preciso (WS aberto), substitui por uma chamada da MicroOcpp,
    // mas como fallback isto já evita o undefined symbol.
    return g_ocpp_conn != NULL;
}

const char *addErrorCodeInput(void)
{
    const char *ptr = NULL;
    uint32_t error = evse_get_error();

    if (error & EVSE_ERR_PILOT_FAULT_BIT)
        ptr = "InternalError";
    else if (error & EVSE_ERR_DIODE_SHORT_BIT)
        ptr = "InternalError";
    else if (error & EVSE_ERR_LOCK_FAULT_BIT)
        ptr = "ConnectorLockFailure";
    else if (error & EVSE_ERR_UNLOCK_FAULT_BIT)
        ptr = "ConnectorLockFailure";
    else if (error & EVSE_ERR_RCM_TRIGGERED_BIT)
        ptr = "OtherError";
    else if (error & EVSE_ERR_RCM_SELFTEST_FAULT_BIT)
        ptr = "OtherError";
    else if (error & EVSE_ERR_TEMPERATURE_HIGH_BIT)
        ptr = "HighTemperature";
    else if (error & EVSE_ERR_TEMPERATURE_FAULT_BIT)
        ptr = "OtherError";

    return ptr; // NULL => sem erro
}

/* =========================
 *    Start / Stop OCPP
 * ========================= */
void ocpp_start(void)
{
    ESP_LOGI(TAG, "Starting OCPP");

    if (ocpp_task != NULL)
    {
        ESP_LOGW(TAG, "OCPP already running");
        return;
    }

    enabled = ocpp_get_enabled();
    if (!enabled)
    {
        ESP_LOGW(TAG, "OCPP disabled");
        return;
    }

    char serverstr[64] = {0};
    ocpp_get_server(serverstr);
    if (serverstr[0] == '\0')
    {
        ESP_LOGW(TAG, "No OCPP server configured. Skipping connection.");
        return;
    }

    char charge_id[64] = {0};
    ocpp_get_charge_id(charge_id);
    if (charge_id[0] == '\0')
    {
        ESP_LOGW(TAG, "No OCPP charge_id configured. Skipping connection.");
        return;
    }

    /* Inicializar Mongoose + MicroOcpp */
    mg_mgr_init(&mgr);
    mg_log_set(MG_LL_ERROR);

    struct OCPP_FilesystemOpt fsopt = {.use = true, .mount = true, .formatFsOnFail = true};

    g_ocpp_conn = ocpp_makeConnection(&mgr,
                                      serverstr, /* ex: ws://host:port/OCPP16/... */
                                      charge_id, /* ChargeBoxId / identity */
                                      "",
                                      "",
                                      fsopt);
    if (!g_ocpp_conn)
    {
        ESP_LOGE(TAG, "ocpp_makeConnection failed");
        mg_mgr_free(&mgr);
        return;
    }

    ocpp_initialize(g_ocpp_conn, "EPower M1", "Plixin", fsopt, false);

    /* Inputs/outputs e callbacks */
    ocpp_setEvReadyInput(&setEvReadyInput);
    ocpp_setEvseReadyInput(&setEvseReadyInput);
    ocpp_setConnectorPluggedInput(&setConnectorPluggedInput);
    ocpp_setOnResetExecute(&OnResetExecute);
    ocpp_setTxNotificationOutput(&notificationOutput);
    // ocpp_setStartTxReadyInput(&setStartTxReadyInput);
    ocpp_setStopTxReadyInput(&setStopTxReadyInput);
    ocpp_setOnResetNotify(&setOnResetNotify);

    ocpp_setEnergyMeterInput(&setEnergyInput); // inteiro Wh

    /* Metering */
    ocpp_addMeterValueInputFloat(&setCurrentInput, "Current.Import", "A", NULL, NULL);
    ocpp_addMeterValueInputFloat(&setCurrentInput, "Current.Offered", "A", NULL, NULL);
    ocpp_addMeterValueInputFloat(&setVoltageInput, "Voltage", "V", NULL, NULL);
    ocpp_addMeterValueInputFloat(&setTemperatureInput, "Temperature", "Celsius", NULL, NULL);
    ocpp_addMeterValueInputFloat(&setPowerMeterInput, "Power.Active.Import", "W", NULL, NULL);
    ocpp_addMeterValueInputFloat(&setEnergyMeterInput, "Energy.Active.Import.Register", "Wh", NULL, NULL);

    ocpp_addErrorCodeInput(&addErrorCodeInput);

    /* Task */
    xTaskCreate(ocpp_task_func, "ocpp_task", 5 * 1024, NULL, 5, &ocpp_task);

    if (!s_auth_verify_inst)
    {
        ESP_ERROR_CHECK(esp_event_handler_instance_register(
            AUTH_EVENTS, AUTH_EVENT_TAG_VERIFY,
            &ocpp_on_auth_verify, NULL, &s_auth_verify_inst));
        ESP_LOGI(TAG, "Registered AUTH_EVENT_TAG_VERIFY listener");
    }

    // ouvir mudanças de estado do EVSE
    if (!s_evse_state_inst)
    {
        ESP_ERROR_CHECK(esp_event_handler_instance_register(
            EVSE_EVENTS, EVSE_EVENT_STATE_CHANGED,
            &evse_event_handler, NULL, &s_evse_state_inst));
    }

    // ouvir mudanças de ENABLE / AVAILABLE do EVSE (Local → OCPP)
    if (!s_evse_enable_inst)
    {
        ESP_ERROR_CHECK(esp_event_handler_instance_register(
            EVSE_EVENTS, EVSE_EVENT_ENABLE_UPDATED,
            &evse_enable_available_handler, NULL, &s_evse_enable_inst));
    }
    if (!s_evse_available_inst)
    {
        ESP_ERROR_CHECK(esp_event_handler_instance_register(
            EVSE_EVENTS, EVSE_EVENT_AVAILABLE_UPDATED,
            &evse_enable_available_handler, NULL, &s_evse_available_inst));
    }

    if (!s_meter_inst)
    {
        ESP_ERROR_CHECK(esp_event_handler_instance_register(
            METER_EVENT, METER_EVENT_DATA_READY,
            &on_meter_event, NULL, &s_meter_inst));
        ESP_LOGI(TAG, "Registered METER_EVENT_DATA_READY listener (EVSE source)");
    }
}

void ocpp_stop(void)
{
    ESP_LOGI(TAG, "Stopping OCPP");

    if (ocpp_task)
    {
        vTaskDelete(ocpp_task);
        ocpp_task = NULL;
    }

    ocpp_deinitialize();

    if (g_ocpp_conn)
    {
        ocpp_deinitConnection(g_ocpp_conn);
        g_ocpp_conn = NULL;
    }

    mg_mgr_free(&mgr);

    if (s_auth_verify_inst)
    {
        ESP_ERROR_CHECK(esp_event_handler_instance_unregister(
            AUTH_EVENTS, AUTH_EVENT_TAG_VERIFY, s_auth_verify_inst));
        s_auth_verify_inst = NULL;
    }

    if (s_evse_state_inst)
    {
        ESP_ERROR_CHECK(esp_event_handler_instance_unregister(
            EVSE_EVENTS, EVSE_EVENT_STATE_CHANGED, s_evse_state_inst));
        s_evse_state_inst = NULL;
    }

    if (s_evse_enable_inst)
    {
        ESP_ERROR_CHECK(esp_event_handler_instance_unregister(
            EVSE_EVENTS, EVSE_EVENT_ENABLE_UPDATED, s_evse_enable_inst));
        s_evse_enable_inst = NULL;
    }
    if (s_evse_available_inst)
    {
        ESP_ERROR_CHECK(esp_event_handler_instance_unregister(
            EVSE_EVENTS, EVSE_EVENT_AVAILABLE_UPDATED, s_evse_available_inst));
        s_evse_available_inst = NULL;
    }
    if (s_meter_inst)
    {
        ESP_ERROR_CHECK(esp_event_handler_instance_unregister(
            METER_EVENT, METER_EVENT_DATA_READY, s_meter_inst));
        s_meter_inst = NULL;
    }
}

// === Fim de: components/ocpp/src/ocpp.c ===


// === Início de: components/ocpp/include/ocpp_events.h ===
#pragma once
#include "esp_event.h"
#include <stdbool.h>
#include <stdint.h>

#ifdef __cplusplus
extern "C" {
#endif

/* Base de eventos do OCPP (igual ao padrão usado em auth_events.h) */
ESP_EVENT_DECLARE_BASE(OCPP_EVENTS);

/* IDs de eventos do OCPP */
typedef enum {
    OCPP_EVENT_CONNECTED = 0,     // payload: const char* (server URL) – opcional
    OCPP_EVENT_DISCONNECTED,      // payload: NULL
    OCPP_EVENT_AUTHORIZED,        // payload: ocpp_idtag_event_t (opcional)
    OCPP_EVENT_AUTH_REJECTED,     // payload: ocpp_idtag_event_t (opcional)
    OCPP_EVENT_AUTH_TIMEOUT,      // payload: NULL
    OCPP_EVENT_REMOTE_START,      // payload: ocpp_idtag_event_t (opcional)
    OCPP_EVENT_REMOTE_STOP,       // payload: NULL
    OCPP_EVENT_START_TX,          // payload: ocpp_tx_event_t (opcional)
    OCPP_EVENT_STOP_TX,           // payload: ocpp_reason_event_t (opcional)
    OCPP_EVENT_RESET,             // payload: NULL
    OCPP_EVENT_OPERATIVE_UPDATED
} ocpp_event_id_t;

/* Limites de strings simples (evita dependência de auth.h) */
#define OCPP_IDTAG_MAX   32
#define OCPP_REASON_MAX  32

/* Payloads opcionais */
typedef struct {
    char idTag[OCPP_IDTAG_MAX];
} ocpp_idtag_event_t;

typedef struct {
    int tx_id; // se disponível
} ocpp_tx_event_t;

typedef struct {
    char reason[OCPP_REASON_MAX];
} ocpp_reason_event_t;

// Payload do novo evento
typedef struct {
    bool    operative;     // true = Operative, false = Inoperative
    int64_t timestamp_us;  // esp_timer_get_time()
} ocpp_operative_event_t;

#ifdef __cplusplus
}
#endif

// === Fim de: components/ocpp/include/ocpp_events.h ===


// === Início de: components/ocpp/include/ocpp.h ===
#ifndef OCPP_H_
#define OCPP_H_

#include <stdint.h>
#include <stdbool.h>

#ifdef __cplusplus
extern "C" {
#endif

/**
 * @brief Start OCPP
 */
void ocpp_start(void);

/**
 * @brief Stop OCPP
 */
void ocpp_stop(void);

/* Config getters / setters */
bool ocpp_get_enabled(void);
void ocpp_set_enabled(bool value);

void ocpp_get_server(char *value);      // buffer >= 64
void ocpp_set_server(char *value);

void ocpp_get_charge_id(char *value);   // buffer >= 64
void ocpp_set_charge_id(char *value);

/* Estado de conexão */
bool ocpp_is_connected(void);

#ifdef __cplusplus
}
#endif

#endif /* OCPP_H_ */

// === Fim de: components/ocpp/include/ocpp.h ===