// Test project, not working
//
// Problems:
//   The i2c-lcd.c is not automatically included.
//   The i2c functions are not compatible with the Wokwi display
//


#include <stdio.h>
#include "esp_log.h"
#include "driver/i2c.h"
#include "i2c-lcd.h"
#include "unistd.h"
#include "esp_timer.h"

// Add the i2c functions here ! temporary fix !
#include "i2c-lcd.c"

void lcd_put_cur(int row, int col);
void lcd_send_string (char *str);

static const char *TAG1 = "i2c-simple-example";

char buffer[10];

int counter = 0;
int tmp;
int hour, minute, second;
/**
 * @brief i2c master initialization
 */
static esp_err_t i2c_master_init(void)
{
    int i2c_master_port = I2C_NUM_0;

    i2c_config_t conf = {
        .mode = I2C_MODE_MASTER,
        .sda_io_num = GPIO_NUM_21,
        .scl_io_num = GPIO_NUM_22,
        .sda_pullup_en = GPIO_PULLUP_ENABLE,
        .scl_pullup_en = GPIO_PULLUP_ENABLE,
        .master.clk_speed = 100000,
    };

    i2c_param_config(i2c_master_port, &conf);

    return i2c_driver_install(i2c_master_port, conf.mode, 0, 0, 0);
}

void display_time_lcd(int hour, int minute, int second)
{
    sprintf(buffer, "%02d", hour);
    lcd_put_cur(0, 4);
    lcd_send_string(buffer);

    sprintf(buffer, "%02d", minute);
    lcd_put_cur(0, 7);
    lcd_send_string(buffer);

    sprintf(buffer, "%02d", second);
    lcd_put_cur(0, 10);
    lcd_send_string(buffer);
}

//void Digital_Clock(void *arg);
void Digital_Clock(void *arg)
{
    counter++;
    tmp = counter;
    hour = tmp / 3600;
    tmp = tmp % 3600;
    minute = tmp / 60;
    tmp = tmp % 60;
    second = tmp;

    display_time_lcd(hour, minute, second);

    if (counter == 86400)
    {
        counter = 0;
        lcd_put_cur(0, 4);
        lcd_send_string("00:00:00");
    }
}

void app_main(void)
{
    ESP_ERROR_CHECK(i2c_master_init());
    ESP_LOGI(TAG1, "I2C initialized successfully");

    lcd_init();
    lcd_clear();
    lcd_put_cur(0, 4);
    lcd_send_string("00:00:00");
    //    Khoi tao timer
    const esp_timer_create_args_t periodic_timer_args = {
        .callback = &Digital_Clock,
        .name = "periodic"};
    esp_timer_handle_t periodic_timer;

    esp_timer_create(&periodic_timer_args, &periodic_timer);
    while (1)
    {
        esp_timer_start_periodic(periodic_timer, 1000000);
    }
}