/*
74HC595
DS 25
OE 26
STCP 27
SHCP 14
MR 12

MAX7219
DIN 15
CS 2
CLK 0
*/
#include <MD_Parola.h>
#include <MD_MAX72xx.h> //x要小寫
#include <SPI.h>

// MAX7219 設定
#define MAX7219_DIN 15
#define MAX7219_CS 2
#define MAX7219_CLK 0
#define NUM_MATRICES 1

MD_MAX72XX matrix = MD_MAX72XX(MD_MAX72XX::FC16_HW, MAX7219_DIN, MAX7219_CLK, MAX7219_CS, NUM_MATRICES);

// 74HC595 設定
#define SHIFT_DS 25
#define SHIFT_OE 26
#define SHIFT_STCP 27
#define SHIFT_SHCP 14
#define SHIFT_MR 12

const uint64_t IMAGES[] = {
  0x824428b29c780c1e,
  0x466428b25c380c1e,
  0x462428305c380c1e,
  0x2428283418380c1e,
  0x2428303c38380c1e,
  0x2828303818180c1e,
  0x2428181c301c0c1e,
  0x2428281c183c0c1e,
  0x442428185c3c0c1e,
  0x4664289a5c3c0c1e,
  0x8244289a947c0c1e
};

const int IMAGES_LEN = sizeof(IMAGES) / 8;

void setup() {
  // MAX7219 初始化
  matrix.begin();
  matrix.clear();

  // 74HC595 初始化
  pinMode(SHIFT_DS, OUTPUT);
  pinMode(SHIFT_OE, OUTPUT);
  pinMode(SHIFT_STCP, OUTPUT);
  pinMode(SHIFT_SHCP, OUTPUT);
  pinMode(SHIFT_MR, OUTPUT);

  digitalWrite(SHIFT_OE, LOW);
  digitalWrite(SHIFT_MR, HIGH);

  Serial.begin(115200);
  Serial.println("Hello, ESP32!");
}

void loop() {
  // 顯示 8x8 LED 動畫
  for (int i = 0; i < 100; i++) {  // 100 次 = 5 秒
    int imageIndex = i % IMAGES_LEN;
    showImage(IMAGES[imageIndex]);
    delay(50);
  }

  // 顯示倒數計時
  for (int i = 5; i >= 0; i--) {
    show7Segment(i);
    delay(1000);
  }
}

// MAX7219 顯示圖片函數
void showImage(uint64_t image) {
  for (int row = 0; row < 8; row++) {
    uint8_t rowData = (image >> (row * 8)) & 0xFF;
    matrix.setRow(0, row, rowData);
  }
  matrix.update();
}

// 7 段顯示器顯示數字函數
void show7Segment(int number) {
  static const uint8_t digitToSegments[] = {
    0b00111111, // 0
    0b00000110, // 1
    0b01011011, // 2
    0b01001111, // 3
    0b01100110, // 4
    0b01101101, // 5
    0b01111101, // 6
    0b00000111, // 7
    0b01111111, // 8
    0b01101111  // 9
  };

  if (number < 0 || number > 9) return;

  uint8_t segments = digitToSegments[number];
  for (int i = 0; i < 8; i++) {
    digitalWrite(SHIFT_DS, (segments >> i) & 0x01);
    digitalWrite(SHIFT_SHCP, HIGH);
    digitalWrite(SHIFT_SHCP, LOW);
  }

  digitalWrite(SHIFT_STCP, HIGH);
  digitalWrite(SHIFT_STCP, LOW);
}







/*


//https://asciiart.cc/zh/view/11428            
             ______________      
            /         \    \    
           /           \    \    
          / _________   \    |  
          \/     _   \  /    |   
           \ /    \   \/_    |   
           |  O_O_/   || \_  \   
          / __(_ __   ||   \ /   
         /\/___\___\_/  \  /_\   
        /      __        \/   \  
        |                |\___/  
  ______|________        |  \    
 /              /\       /   \    
 |              | \     /     \
 \______________\  |___/       \
  _|___            |_____\      \
 /|  __|           |_|| o \      \
| |    \           |_||____\_____/\
\_|____/     /     |        \_____/____
   |        //     |         /     \   \
   |       //      |_________\_/\   \   \__  ______
   |      /        |         /_ |_/_/      \/_//__/|
   |               |________// \|  \      //_//__/||\_
   |  no bug       |        \__//   |    / | ||__|/_  \
   |               |        |       |    \_|_/         \
   |  ___________  | |      |       /                   |
    \               \|______|      /              _____ |
     \               \      |      |      \\     _/   / |
      \               \_____|______\___    \    -/___/  |
       \                         ______\_____          /
        \                       / \          \        /
         \__________________    \ |           |______/
                            \    /            /
                             \__/____________/

*/