// LINK:
// https://programmersqtcpp.blogspot.com/

//#include <SSD1306Ascii.h>
//#include <SSD1306AsciiAvrI2c.h>
#define SSD1306_NO_SPLASH
#include <Wire.h>
#include <Adafruit_GFX.h>
#include <Adafruit_SSD1306.h>
//#include <Fonts/FreeMono12pt7b.h>
#include <Fonts/Picopixel.h>
#include <JC_Button.h>

#include "gfx_battery.h"
#include "wrap.h"
#define DDEBUG
#include "ddebug.h"

#define SCREEN_WIDTH 128 // OLED display width, in pixels
#define SCREEN_HEIGHT 32 // OLED display height, in pixels

// Declaration for an SSD1306 display connected to I2C (SDA, SCL pins)
// The pins for I2C are defined by the Wire-library. 
// On an arduino UNO:       A4(SDA), A5(SCL)
// On an arduino MEGA 2560: 20(SDA), 21(SCL)
// On an arduino LEONARDO:   2(SDA),  3(SCL), ...
#define OLED_RESET     -1 // Reset pin # (or -1 if sharing Arduino reset pin)
#define SCREEN_ADDRESS 0x3C ///< See datasheet for Address; 0x3D for 128x64, 0x3C for 128x32
Adafruit_SSD1306 oled(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, OLED_RESET);

const byte PLAY_BTN = 2;
Button playBtn(PLAY_BTN);

void setup()
{
    Serial.begin(115200);
    pinMode(LED_BUILTIN, OUTPUT);
    //dbg.setEnable(true);
    DDBG_Enable(true);
    
    DDBG_("test debug\n");
    DDBG_(F("in flash\n"));
    DDBG_sn("auto = ", 1000, HEX); DDBG_NL();
    DDBG_(1000); DDBG_NL();
        
    playBtn.begin();
    pinMode(LED_BUILTIN, OUTPUT);
    DDBG_("debug\n");
    //dbg.print("Inizializza display");
    if(!oled.begin(SSD1306_SWITCHCAPVCC, SCREEN_ADDRESS)) {
        Serial.println(F("SSD1306 allocation failed"));
        for(;;); // Don't proceed, loop forever
    }
    oled.clearDisplay();
        
}

byte playState = 0;
uint32_t saveMillis;
uint16_t interval;
bool pin13State; 
uint32_t st;

void loop() {
    
    playBtn.read();
    if(playBtn.wasPressed()) {
        //Serial.println(".");
        DDBG_('.');
    }

    /*if ((playState == 0) && playBtn.wasPressed()) {
        playState = 1;
        interval = 3000;
        saveMillis = millis();
        digitalWrite(LED_BUILTIN, HIGH);
        Serial.println("play track002.mp3");

    }
    if (playState == 1) {
        if (playBtn.isReleased()) {
            digitalWrite(LED_BUILTIN, LOW);
            Serial.println("Stop track002.mp3");
            playState = 0;
        } else {
            if (millis() - saveMillis >= interval) {
                digitalWrite(LED_BUILTIN, LOW);
                interval = 5000;
                saveMillis = millis();
                playState = 2;
                Serial.println("Stop track002.mp3");
            }
            
        }
    }
    if (playState == 2) {
        if (millis() - saveMillis >= interval) {
            playState = 0;
        }

    }*/
}

void serialEventRun() {
    char c = Serial.read();
    if (c == '1') 
        DDBG_Enable(true);
    else if (c == '0') 
        DDBG_Enable(false);
}