/*
        _    _   _ ____   ___  ____      _    
       / \  | | | |  _ \ / _ \|  _ \    / \   
      / _ \ | | | | |_) | | | | |_) |  / _ \  
     / ___ \| |_| |  _ <| |_| |  _ <  / ___ \ 
    /_/   \_\\___/|_| \_\\___/|_| \_\/_/   \_\
                                              
           ____  _____ __  __  ___  
          |  _ \| ____|  \/  |/ _ \ 
          | | | |  _| | |\/| | | | |
          | |_| | |___| |  | | |_| |
          |____/|_____|_|  |_|\___/ 

 Description:
 * This demonstrates a combination of the following libraries two:
    - "ESP32-HUB75-MatrixPanel-DMA" to send pixel data to the physical panels in combination with its 
       in-built "VirtualMatrix" class which used to create a virtual display of chained panels, so the
       graphical effects of the Aurora demonstration can be shown on a 'bigger' grid of physical panels
       acting as one big display.

    - "GFX_Lite" to provide a simple graphics library for drawing on the virtual display.
       GFX_Lite is a fork of AdaFruitGFX and FastLED library combined together, with a focus on simplicity and ease of use.

*/

#define USE_GFX_LITE 1
#include <ESP32-VirtualMatrixPanel-I2S-DMA.h>

/***************************************************************************************************************************/

// Step 1) Provide the size of each individual physical panel LED Matrix panel that is chained (or not) together
#define PANEL_RES_X 64 // Number of pixels wide of each INDIVIDUAL panel module. 
#define PANEL_RES_Y 32 // Number of pixels tall of each INDIVIDUAL panel module.

// Step 2) Provide details of the physical panel chaining that is in place.
#define NUM_ROWS 2 // Number of rows of chained INDIVIDUAL PANELS
#define NUM_COLS 1 // Number of INDIVIDUAL PANELS per ROW
#define PANEL_CHAIN NUM_ROWS*NUM_COLS    // total number of panels chained one to another

// Step 3) How are the panels chained together?
#define PANEL_CHAIN_TYPE CHAIN_TOP_RIGHT_DOWN

// Refer to: https://github.com/mrcodetastic/ESP32-HUB75-MatrixPanel-DMA/tree/master/examples/VirtualMatrixPanel
//      and: https://github.com/mrcodetastic/ESP32-HUB75-MatrixPanel-DMA/blob/master/doc/VirtualMatrixPanel.pdf

// Virtual Panel dimensions - our combined panel would be a square 4x4 modules with a combined resolution of 128x128 pixels
#define VPANEL_W PANEL_RES_X*NUM_COLS // Kosso: All Pattern files have had the MATRIX_WIDTH and MATRIX_HEIGHT replaced by these.
#define VPANEL_H PANEL_RES_Y*NUM_ROWS //

/***************************************************************************************************************************/

// The palettes are set to change every 60 seconds. 
int lastPattern = 0;


// placeholder for the matrix object
MatrixPanel_I2S_DMA *matrix = nullptr;

// placeholder for the virtual display object
VirtualMatrixPanel  *virtualDisp = nullptr;

// Aurora related
#include "Effects.h"
Effects effects(VPANEL_W, VPANEL_H);

#include "Drawable.h"
#include "Playlist.h"
#include "Geometry.h"

#include "Patterns.h"
Patterns patterns;

/* -------------------------- Some variables -------------------------- */
unsigned long ms_current  = 0;
unsigned long ms_previous = 0;
unsigned long ms_animation_max_duration = 10000; // 10 seconds
unsigned long next_frame = 0;

void listPatterns();

void setup()
{
  // Setup serial interface
  Serial.begin(115200);
  delay(250);


  // Configure your matrix setup here
  HUB75_I2S_CFG mxconfig(PANEL_RES_X, PANEL_RES_Y, PANEL_CHAIN);

  // custom pin mapping (if required)
  //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};
  //mxconfig.gpio = _pins;

  // in case that we use panels based on FM6126A chip, we can change that
  //mxconfig.driver = HUB75_I2S_CFG::FM6126A;

  // FM6126A panels could be cloked at 20MHz with no visual artefacts
  // mxconfig.i2sspeed = HUB75_I2S_CFG::HZ_20M;

  // OK, now we can create our matrix object
  matrix = new MatrixPanel_I2S_DMA(mxconfig);

  // Allocate memory and start DMA display
  if( not matrix->begin() )
      Serial.println("****** !KABOOM! I2S memory allocation failed ***********");

  // let's adjust default brightness to about 75%
  matrix->setBrightness8(192);    // range is 0-255, 0 - 0%, 255 - 100%

  // create VirtualDisplay object based on our newly created dma_display object
  virtualDisp = new VirtualMatrixPanel((*matrix), NUM_ROWS, NUM_COLS, PANEL_RES_X, PANEL_RES_Y, PANEL_CHAIN_TYPE);

  Serial.println("**************** Starting Aurora Effects Demo ****************");

  Serial.print("MATRIX_WIDTH: ");  Serial.println(PANEL_RES_X*PANEL_CHAIN);
  Serial.print("MATRIX_HEIGHT: "); Serial.println(PANEL_RES_Y);

#ifdef VPANEL_W
  Serial.println("VIRTUAL PANEL WIDTH " + String(VPANEL_W));
  Serial.println("VIRTUAL PANEL HEIGHT " + String(VPANEL_H));
#endif

   // setup the effects generator
  effects.Setup();

  delay(500);
  Serial.println("Effects being loaded: ");
  listPatterns();

  Serial.println("LastPattern index: " + String(lastPattern));
  
  patterns.setPattern(lastPattern); //   // simple noise
  patterns.start();     

  Serial.print("Starting with pattern: ");
  Serial.println(patterns.getCurrentPatternName());

}


void patternAdvance(){
    // Go to next pattern in the list (se Patterns.h)
    patterns.stop();

    patterns.moveRandom(1);
    //patterns.move(1);
    patterns.start();  

    // Select a random palette as well
    effects.RandomPalette();
    Serial.print("Changing pattern to:  ");
    Serial.println(patterns.getCurrentPatternName());
    
}

void loop()
{
  
    ms_current = millis();
      
    if ( (ms_current - ms_previous) > ms_animation_max_duration ) 
    {
       patternAdvance();

       // just auto-change the palette
       effects.RandomPalette();
       ms_previous = ms_current;
    }
 
    if ( next_frame < ms_current)
      next_frame = patterns.drawFrame() + ms_current; 
       
}


void listPatterns() {
  patterns.listPatterns();
}