/********************************************
 *
 *  HORLOGE PLASMA (prototype)
 *
 * L.VOLFOVSKY 26/01/2022
 *********************************************/

#define WITH_PLASMA

#include <WiFi.h>

const char* ssid     = "freebox_chezmoi";
const char* password = "1234567890";

#include <ESP32Time.h>

#define R1 25
#define G1 26
#define BL1 27
#define R2 14
#define G2 12
#define BL2 13
#define CH_A 23
#define CH_B 19
#define CH_C 5
#define CH_D 17
#define CH_E -1 // assign to any available pin if using two panels or 64x64 panels with 1/32 scan
#define LAT 4
#define OE 15
#define CLK 16

#include <ESP32-HUB75-MatrixPanel-I2S-DMA.h>
#include <FastLED.h>

#define PANEL_WIDTH 64
#define PANEL_HEIGHT 32    // Panel height of 64 will required PIN_E to be defined.
#define PANELS_NUMBER 2   // Number of chained panels, if just a single panel, obviously set to 1
#define PIN_E -1

#define PANE_WIDTH PANEL_WIDTH * PANELS_NUMBER
#define PANE_HEIGHT PANEL_HEIGHT

MatrixPanel_I2S_DMA *hdisplay = nullptr;

uint16_t time_counter = 0, cycles = 0, fps = 0;
CRGB currentColor;
//CRGBPalette16 palettes[] = {HeatColors_p, LavaColors_p, RainbowColors_p, RainbowStripeColors_p, CloudColors_p};
//CRGBPalette16 palettes[] = {HeatColors2_p, LavaColors_p, CloudColors_p, OceanColors_p, ForestColors_p};
CRGBPalette16 palettes[] = {HeatColors2_p, LavaColors2_p, CloudColors2_p, OceanColors2_p, ForestColors2_p};
CRGBPalette16 currentPalette = palettes[0];

uint8_t intensite = 32;

//=================================================================================
void setup() {
  Serial.begin(115200);

  HUB75_I2S_CFG::i2s_pins _pins={R1, G1, BL1, R2, G2, BL2, CH_A, CH_B, CH_C, CH_D, CH_E, LAT, OE, CLK};
  HUB75_I2S_CFG mxconfig(
     PANEL_WIDTH
    ,PANEL_HEIGHT
    ,PANELS_NUMBER
    ,_pins
  );

  hdisplay = new MatrixPanel_I2S_DMA(mxconfig);
  hdisplay->setBrightness8(intensite);    // 0-255 => 0-100%
  if( not hdisplay->begin() ) {
      Serial.println("I2S memory allocation failed...");
  }
  for (int r=31; r<=255; r+=32) {
    for (int g=31; g<=255; g+=32) {
      for (int b=31; b<=255; b+=32) {
        hdisplay->fillScreenRGB888(r, g, b);
        delay(1);
      }
    }
  }
  hdisplay->fillScreenRGB888(0, 0, 0);

  Serial.print("Connecting to ");
  Serial.println(ssid);
  hdisplay->setTextSize(1);
  hdisplay->setCursor(0,0);
  hdisplay->printf("Cnx:%s",ssid);
  hdisplay->setCursor(0,10);
  WiFi.begin(ssid, password);
  int nbtry = 0;
  while (WiFi.status() != WL_CONNECTED && nbtry++<20) {
    delay(500);
    Serial.print(".");
    hdisplay->print(".");
  }
  hdisplay->setCursor(0,10);
  if (nbtry<20) {
    Serial.println();
    Serial.println("Connecte au WiFi.");
    Serial.println("IP: ");
    Serial.println(WiFi.localIP());
    hdisplay->print(WiFi.localIP());

    ESP32Time.begin();
  }
  else {
    Serial.println();
    Serial.println("Connexion impossible.");
    hdisplay->print("Erreur cnx...");
  }
  delay(2000);

  currentPalette = palettes[0];
}

//=================================================================================
void loop() {

  time_t t = time(NULL);
  struct tm *t_st;
  t_st = localtime(&t);

#ifdef WITH_PLASMA
  for (int x = 0; x < PANE_WIDTH; x++) {
    for (int y = 0; y <  PANE_HEIGHT; y++) {
      int16_t v = 0;
      uint8_t wibble = sin8(time_counter);
      v += sin16(x * wibble * 3 + time_counter);
      v += cos16(y * (128 - wibble)  + time_counter);
      v += sin16(y * x * cos8(-time_counter) / 8);

      currentColor = ColorFromPalette(currentPalette, (v >> 8) + 127); //, brightness, currentBlendType);
      hdisplay->drawPixelRGB888(x, y, currentColor.r, currentColor.g, currentColor.b);
    }
    if (x%3==0) {
      hdisplay->setTextSize(2);
      hdisplay->setCursor(15,4);
      hdisplay->setTextColor(hdisplay->color444(255, 255, 255));
      hdisplay->printf("%02d:%02d:%02d",t_st->tm_hour, t_st->tm_min, t_st->tm_sec);
      hdisplay->setTextSize(1);
      hdisplay->setCursor(2,22);
      hdisplay->printf("%c%c%c%c%c%c%c%c %02d/%02d/%04d", "Q  M V "[t_st->tm_wday], "iLMeJeS"[t_st->tm_wday], "muarena"[t_st->tm_wday], "anrcudm"[t_st->tm_wday], "nddrdre"[t_st->tm_wday], "ciieied"[t_st->tm_wday], "h  d di"[t_st->tm_wday], "e  i i "[t_st->tm_wday], t_st->tm_mday, 1 + t_st->tm_mon, 1900 + t_st->tm_year);
    }
  }
#else
  static uint32_t dly_afftime=0;
  if (millis()-dly_afftime > 1000) {
    dly_afftime = millis();
    hdisplay->fillScreenRGB888(0, 0, 0);
    hdisplay->setTextSize(2);
    hdisplay->setCursor(15,4);
    hdisplay->setTextColor(hdisplay->color444(255, 255, 255));
    hdisplay->printf("%02d:%02d:%02d",t_st->tm_hour, t_st->tm_min, t_st->tm_sec);
    hdisplay->setTextSize(1);
    hdisplay->setCursor(2,22);
    hdisplay->printf("%c%c%c%c%c%c%c%c %02d/%02d/%04d", "Q  M V "[t_st->tm_wday], "iLMeJeS"[t_st->tm_wday], "muarena"[t_st->tm_wday], "anrcudm"[t_st->tm_wday], "nddrdre"[t_st->tm_wday], "ciieied"[t_st->tm_wday], "h  d di"[t_st->tm_wday], "e  i i "[t_st->tm_wday], t_st->tm_mday, 1 + t_st->tm_mon, 1900 + t_st->tm_year);
  }
#endif

#ifdef WITH_PLASMA
  ++time_counter;
  ++cycles;

  if (cycles >= 512) {
      time_counter = 0;
      cycles = 0;
      int pal = random(0,sizeof(palettes)/sizeof(palettes[0]));
      currentPalette = palettes[pal];
  }
#endif

}

//