#include "Free_Fonts.h" 
#include <TFT_eSPI.h>
#include <SPI.h>       // this is needed for display
#include "spy-1.h"
#include "font.h"


// The display also uses hardware SPI, plus #9 & #10
#define TFT_CS 15
#define TFT_DC 2
#define TFT_MOSI 23
#define TFT_SCLK 18
#define open_button 5


#define BLUE_REC 0x251F

float dispTemp = 22.3;

TFT_eSPI tft = TFT_eSPI(); // Invoke custom library with default width and height
TFT_eSprite img = TFT_eSprite(&tft);

void test(){
  tft.startWrite();

  tft.setAddrWindow(85,263,80,263);
  for(int16_t i = 0; i < 33; i+=2) {
    tft.pushColor(TFT_WHITE, 5*1); // push dash pixels
    tft.pushColor(TFT_BLACK, 5*1); // push gap pixels
  }

  tft.endWrite();
}
void drawDashedLine(uint16_t x, uint16_t y, uint16_t w, uint16_t h){
  uint16_t dash_h = 1;
  uint16_t dash_w = 5;
  tft.setAddrWindow(x,y,w,h);
  uint8_t dash_n = (x+w) / dash_w;
  for(uint16_t i = 0;i < dash_n; i+=2){
    tft.pushColor(TFT_WHITE, dash_w*dash_h); // push dash pixels
    tft.pushColor(TFT_BLACK, dash_w*dash_h); // push gap pixels
  }
  
}

void updateValue(int x, int y,String value){
  img.setColorDepth(8);
  img.createSprite(80, 20);
  img.setFreeFont(&Roboto_Condensed_Light_16); 
  img.fillSprite(TFT_BLACK);
  img.drawString(String(value),0,0);
  img.pushSprite(x, y, TFT_TRANSPARENT);
  img.deleteSprite();
}

void removeText(int x, int y){
  img.setColorDepth(8);
  img.createSprite(80, 20);
  img.fillSprite(TFT_BLACK);
  img.pushSprite(x, y);
  img.deleteSprite();
}

void setup(void) {
  Serial.begin(115200);
  tft.begin();
  tft.setRotation(0);
  // themeClockTFT(dispTemp, "TEMP", "`C", "88.8", "temp", 1);
  // Fill screen and setSwapBytes
  // tft.fillScreen(TFT_BLACK);
  tft.setSwapBytes(true);
  // tft.setColorDepth(8);

  // Spy Image
  tft.pushImage(0,0,240,240,spy);

  // RGB box
  tft.fillRect(0,240,80,23,BLUE_REC);
  tft.fillRect(0,268,80,23,TFT_RED);
  tft.fillRect(0,296,80,24,TFT_GREEN);

  // Dashed Line
  drawDashedLine(85,263,80,263);
  drawDashedLine(85,293,80,293);
  // test();

  // Draw font in three box
  tft.setFreeFont(&Roboto_Condensed_Light_16); //set Font
  tft.setTextColor(TFT_WHITE,BLUE_REC); // Set text color,  text background
  tft.drawString("Status",2,245);
  // tft.drawString("Undetected",85,245);
  tft.setTextColor(TFT_WHITE,TFT_RED);
  tft.drawString("Distance",2,273);
  tft.setTextColor(TFT_WHITE,TFT_GREEN);
  tft.drawString("Date",2,301);
  tft.setTextColor(TFT_WHITE);
  pinMode(5, INPUT_PULLUP);
}
int prev_state = 0;
int curr_state = 0; 
bool on_state = true;
bool prev_on = false;
void loop() {
  curr_state = digitalRead(open_button);
  if(prev_state==LOW && curr_state==HIGH){
    on_state = !on_state;
  }
  if(on_state == true){
    if(dispTemp <10){
      updateValue(85,240,String("Detected"));
    }
    else{updateValue(85,240,String("Undetected"));}
    updateValue(85,274,String(dispTemp));
  }
  if(on_state == false){
    if(prev_on == on_state){}
    else{
      tft.fillRect(85,240,80,20,TFT_BLACK);
      tft.drawString("off", 85,245);
    }
  }
  dispTemp--;
  if(dispTemp<0){dispTemp=20;}
  prev_state = curr_state;
  prev_on  = on_state;
  Serial.println(on_state);
  
  delay(100);
}



// void themeClockTFT(float value, const String& lable, const String& units, const String& valueSample, const String& valueType, unsigned int accuracy) {

//   int xpos = 10;
//   int ypos = 45;
//   int yPad = 0;
//   int padding = tft.textWidth(String(value, accuracy), FONT8);

//   tft.setTextDatum(TL_DATUM);
//   tft.drawString(lable, xpos, ypos, FONT4);

//   tft.setTextDatum(TR_DATUM);
//   tft.drawString(units, 240 - xpos, ypos, FONT4);

//   tft.setTextDatum(TL_DATUM);

//   tft.setTextPadding(padding);

//   ypos += tft.fontHeight(FONT8) / 2 + yPad;
//   tft.drawFloat(value, accuracy, (240 - padding) / 2, ypos, FONT8);

//   tft.setTextPadding(0);

// }