#include "charts.h"

void UptimeClock::draw(uint64_t t)
{
    t1 = t;
    draw();
}

void UptimeClock::draw()
{
    uint64_t uptime = t1 - t0;
    int mils = uptime % 1000;
    int seconds = (uptime / 1000) % 60;
    int minutes = (uptime / 60000) % 60;
    int hours = uptime / 3600000;
    String s = String(hours) + (minutes < 10 ? ":0" : ":") + String(minutes) +
               (seconds < 10 ? ":0" : ":") + String(seconds) +
               (mils < 10    ? ".00"
                : mils < 100 ? ".0"
                             : ".") +
               String(mils);
    uint16_t w, h1 = 0;
    int16_t x1, y1 = 0;
    display.getTextBounds(s.c_str(), 0, 0, &x1, &y1, &w, &h1);
    display.fillRect((display.width() - w) / 2, display.height() / 2 - 3, w, 7, BLACK);
    display.setTextColor(WHITE);
    // display.setTextAlignment(TEXT_ALIGN_CENTER_BOTH);
    display.setCursor(display.width() / 2, display.height() / 2);
    display.print(s);
}