#include "display.h"

SSD1306Wire display(0x3c, SDA, SCL);
bool initOK = false;

OLEDDisplayUi ui(&display);



int screenW = 128;
int screenH = 64;
int clockCenterX = screenW / 2;
int clockCenterY = ((screenH - 16) / 2) + 16; // top yellow part is 16 px height
int clockRadius = 23;

// utility function for digital clock display: prints leading 0
String twoDigits(int digits)
{
  if (digits < 10)
  {
    String i = '0' + String(digits);
    return i;
  }
  else
  {
    return String(digits);
  }
}

void msOverlay(OLEDDisplay *display, OLEDDisplayUiState *state)
{

  
}

void initFrame(OLEDDisplay *display, OLEDDisplayUiState *state, int16_t x, int16_t y)
{
  // draw an xbm image.
  // Please note that everything that should be transitioned
  // needs to be drawn relative to x and y

  //display->drawXbm(x + 34, y + 14, WiFi_Logo_width, WiFi_Logo_height, WiFi_Logo_bits);
  display->setTextAlignment(TEXT_ALIGN_CENTER);
  display->setFont(ArialMT_Plain_16);
  display->drawString(64 + x, 8 + y, "DU-DSMR-W");
  //display->
}

void DSMRStatsFrame(OLEDDisplay *display, OLEDDisplayUiState *state, int16_t x, int16_t y)
{
  // Demonstrates the 3 included default sizes. The fonts come from SSD1306Fonts.h file
  // Besides the default fonts there will be a program to convert TrueType fonts into this format
  
  display->setTextAlignment(TEXT_ALIGN_LEFT);
  display->setFont(ArialMT_Plain_10);
  display->drawString(0 + x, 0 + y, "DSMR stats:");
  display->drawString(0 + x, 11 + y, getMsgCount());
}

void ElecFrame(OLEDDisplay *display, OLEDDisplayUiState *state, int16_t x, int16_t y)
{
  display->setTextAlignment(TEXT_ALIGN_LEFT);
  display->setFont(ArialMT_Plain_10);
  display->drawString(0 + x, 0 + y, "Electricity:");

  display->drawString(0 + x, 11 + y, getElecDelivered());
  display->drawString(0 + x, 22 + y, getElecReturned());
}

void GasFrame(OLEDDisplay *display, OLEDDisplayUiState *state, int16_t x, int16_t y)
{
  display->setTextAlignment(TEXT_ALIGN_LEFT);
  display->setFont(ArialMT_Plain_10);
  display->drawString(0 + x, 0 + y, getGasDelivered());
}

void drawFrame5(OLEDDisplay *display, OLEDDisplayUiState *state, int16_t x, int16_t y)
{

}

// This array keeps function pointers to all frames
// frames are the single views that slide in
FrameCallback frames[] = {initFrame, DSMRStatsFrame, ElecFrame, GasFrame};//, drawFrame5};

// how many frames are there?
int frameCount = 4;

// Overlays are statically drawn on top of a frame eg. a clock
//OverlayCallback overlays[] = {msOverlay};
//int overlaysCount = 1;

void initDisplay(void)
{
  // The ESP is capable of rendering 60fps in 80Mhz mode
  // but that won't give you much time for anything else
  // run it in 160Mhz mode or just set it to 30 fps
  ui.setTargetFPS(30);
  display.init();
  // Customize the active and inactive symbol
  //ui.setActiveSymbol(activeSymbol);
  //ui.setInactiveSymbol(inactiveSymbol);

  // You can change this to
  // TOP, LEFT, BOTTOM, RIGHT
  ui.setIndicatorPosition(RIGHT);

  // Defines where the first frame is located in the bar.
  ui.setIndicatorDirection(LEFT_RIGHT);

  // You can change the transition that is used
  // SLIDE_LEFT, SLIDE_RIGHT, SLIDE_UP, SLIDE_DOWN
  ui.setFrameAnimation(SLIDE_UP);

  // Add frames
  ui.setFrames(frames, frameCount);

  // Add overlays
  //ui.setOverlays(overlays, overlaysCount);
  //ui.disableAllIndicators();

  // Initialising the UI will init the display too.
  ui.init();

  Serial.printf("initdisplay: h=%u, w=%u", display.height(), display.width());

  //display.flipScreenVertically();
}

void handleDisplay(void)
{
  int remainingTimeBudget = ui.update();

  if (remainingTimeBudget > 0)
  {
    // You can do some work here
    // Don't do stuff if you are below your
    // time budget.
    Serial.println(remainingTimeBudget);
    //delay(remainingTimeBudget);
  }
}