/*
* BigClown - Humidity Module
* 
* https://chiptron.cz
* https://time4ee.com
* 
* The example code is based on https://www.bigclown.com/
* 
* 2018
*/

#include "application.h"

#define BLACK true
// sht20 instance
bc_sht20_t sht20;

void sht20_module_event_handler(bc_sht20_t *self, bc_sht20_event_t event, void *event_param) 
{
    (void) event_param;
    char bufferTemp[13];
    char bufferHum[13];
    float temperature = 0.0;
    float humidity = 0.0;

    if (event == BC_SHT20_EVENT_UPDATE) 
    {
        bc_sht20_get_temperature_celsius(self, &temperature);
        bc_sht20_get_humidity_percentage(self, &humidity);

        sprintf(bufferTemp, "%05.2f", temperature);
        bufferTemp[12] = '\0';

        sprintf(bufferHum, "%05.2f", humidity);
        bufferHum[12] = '\0';

        // Use big font
        bc_module_lcd_set_font(&bc_font_ubuntu_24);

        bc_module_lcd_draw_string(5, 30, &bufferTemp[0], BLACK);
        bc_module_lcd_draw_string(100, 30, "°C", BLACK);

        bc_module_lcd_draw_string(5, 55, &bufferHum[0], BLACK);
        bc_module_lcd_draw_string(100, 55, "%", BLACK);
        
        // Don't forget to update
        bc_module_lcd_update();
    } 
    else 
    {
        temperature = 0.0;
        // Use big font
        bc_module_lcd_set_font(&bc_font_ubuntu_24);

        bc_module_lcd_draw_string(5, 30, "0.0", BLACK);

        // Don't forget to update
        bc_module_lcd_update();
    }
}

void application_init(void)
{
    // The parameter is internal buffer in SDK, no need to define it
    bc_module_lcd_init(&_bc_module_lcd_framebuffer);

    // sht20 initialization
    bc_sht20_init(&sht20, BC_I2C_I2C0, 0x40);

    // set update interval
    bc_sht20_set_update_interval(&sht20, 1000);

    // set evend handler (what to do when tag update is triggered)
    bc_sht20_set_event_handler(&sht20, sht20_module_event_handler, NULL);

    // Init default font, this is necessary
    // See other fonts in sdk/bcl/inc/bc_font_common.h
    bc_module_lcd_set_font(&bc_font_ubuntu_15);

    // Draw string at X, Y location
    bc_module_lcd_draw_string(10, 5, "time4ee.com", BLACK);

    bc_module_lcd_draw_line(5, 20, 115, 20, BLACK);
    
     // Don't forget to update
    bc_module_lcd_update();
}