#include "Screen/BaseMenuScreen.h"
#include "Config.h"
#include "Buzzer.h"


void BaseMenuScreen::setEnableMenuScroll(bool value)
{
  if (value != mEnableMenuScroll)
  {
    mEnableMenuScroll = value;
    printScrollIndicators();
  }
}


void BaseMenuScreen::onShow()
{
  printTitle();
  printScrollIndicators();
  printValue();
}


void BaseMenuScreen::onHide()
{
}


void BaseMenuScreen::printTitle()
{
  LiquidCrystal* display = getDisplay();

  const char* title = getTitle();
  uint8_t titleLength = strlen(title);
  uint8_t maxWidth = LCDWidth - 2;

  display->setCursor(1, 0);

  if (titleLength >= maxWidth)
  {
    // Title too long, cut off
    char* character = (char*)title;
    for (uint8_t i = 0; i < maxWidth; i++)
    {
      display->write(byte(*character));
      character++;
    }
  }
  else
  {
    // Center title
    uint8_t offset = (maxWidth - titleLength) / 2;

    for (uint8_t i = 0; i < offset; i++)
      display->write(' ');

    display->print(title);
    offset += titleLength;

    while (offset < LCDWidth - 2)
    {
      display->print(' ');
      offset++;
    }
  }
}


void BaseMenuScreen::printScrollIndicators()
{
  LiquidCrystal* display = getDisplay();

  display->setCursor(0, 0);
  if (hasPrevious())
    display->write(getEnableMenuScroll() ? LCDCharArrowLeft : LCDCharArrowLeftHollow);
  else
    display->write(' ');

  display->setCursor(LCDWidth - 1, 0);
  if (hasNext())
    display->write(getEnableMenuScroll() ? LCDCharArrowRight : LCDCharArrowRightHollow);
  else
    display->write(' ');
}


void BaseMenuScreen::printValue()
{
  LiquidCrystal* display = getDisplay();

  display->setCursor(0, 1);
  for (uint8_t x = 0; x < LCDWidth; x++)
    display->write(' ');
}



void BaseMenuScreen::onEncoder(long lastPosition, long newPosition)
{
  if (mEnableMenuScroll)
  {
    if (newPosition > lastPosition)
    {
      if (hasNext())
      {
        buzzSelect();
        gotoNext();
      }
    }
    else
    {
      if (hasPrevious())
      {
        buzzSelect();
        gotoPrevious();
      }
    }
  }
}