#include "esp_system.h"
#include "freertos/FreeRTOS.h"
#include "freertos/task.h"
#include "driver/gpio.h"
#include "esp_log.h"
#include "mqtt_client.h"

static const char *TAG = "GIZANTECH";

void app_main(void) {
    ESP_LOGI(TAG, "Initializing system...");
    esp_err_t ret = nvs_flash_init();
    if (ret == ESP_ERR_NVS_NO_FREE_PAGES) {
        ESP_ERROR_CHECK(nvs_flash_erase());
        ret = nvs_flash_init();
    }
    ESP_ERROR_CHECK(ret);
    
    wifi_init_sta();
    mqtt_app_start();
    sensor_task_init();
    modbus_master_init();
    
    while(1) {
        vTaskDelay(pdMS_TO_TICKS(1000));
        float temp = read_temperature();
        float humidity = read_humidity();
        publish_telemetry(temp, humidity);
    }
}

static void modbus_master_init(void) {
    mb_master_init(UART_NUM_2, 9600);
    ESP_LOGI(TAG, "Modbus initialized");
}

static void ota_task(void *pvParameters) {
    esp_https_ota_config_t config = {
        .url = FIRMWARE_URL,
        .cert_pem = server_cert,
    };
    esp_err_t ret = esp_https_ota(&config);
    if (ret == ESP_OK) {
        esp_restart();
    }
}