#include <stdio.h>

#include "driver/gpio.h"
#include "driver/i2c.h"
#include "esp_sntp.h"
#include "esp_spi_flash.h"
#include "esp_system.h"
#include "nvs_flash.h"
#include "sdkconfig.h"
//
#include "freertos/FreeRTOS.h"
#include "freertos/task.h"
//
#include "if_standby.h"
#include "impl_lvgl.h"
#include "service_clock.h"
#include "service_dht.h"
#include "service_wifi.h"

#define APP_I2C_MASTER_NUM 0
#define APP_I2C_SDA_NUM    GPIO_NUM_39
#define APP_I2C_SCL_NUM    GPIO_NUM_40
#define APP_I2C_HZ         400000

static esp_err_t app_init_nvs(void) {
    esp_err_t ret = nvs_flash_init();
    if (ret == ESP_ERR_NVS_NO_FREE_PAGES || ret == ESP_ERR_NVS_NEW_VERSION_FOUND) {
        ESP_ERROR_CHECK(nvs_flash_erase());
        ret = nvs_flash_init();
    }

    return ret;
}

static esp_err_t app_init_gpio(void) {
    //
    return gpio_install_isr_service(0);
}

static esp_err_t app_init_i2c(void) {
    i2c_config_t cfg = {
        .mode             = I2C_MODE_MASTER,
        .sda_io_num       = APP_I2C_SDA_NUM,
        .scl_io_num       = APP_I2C_SCL_NUM,
        .sda_pullup_en    = GPIO_PULLUP_ENABLE,
        .scl_pullup_en    = GPIO_PULLUP_ENABLE,
        .master.clk_speed = APP_I2C_HZ,
    };

    i2c_param_config(APP_I2C_MASTER_NUM, &cfg);

    return i2c_driver_install(APP_I2C_MASTER_NUM, cfg.mode, 0, 0, 0);
}

static esp_err_t app_init_sntp(void) {
    sntp_setoperatingmode(SNTP_OPMODE_POLL);
    sntp_setservername(0, "pool.ntp.org");
    sntp_init();

    return ESP_OK;
}

void app_main(void) {
    ESP_ERROR_CHECK(app_init_nvs());
    ESP_ERROR_CHECK(app_init_gpio());
    ESP_ERROR_CHECK(app_init_i2c());
    ESP_ERROR_CHECK(app_init_sntp());

    ESP_ERROR_CHECK(impl_lvgl_init());

    ESP_ERROR_CHECK(if_standby_init());

    ESP_ERROR_CHECK(service_dht_init());
    ESP_ERROR_CHECK(service_clock_init());
    ESP_ERROR_CHECK(service_wifi_init());

    /* Dead loop */
    for (;;) {
        vTaskSuspend(NULL);
    }
}