// MELODY PLAYBACK WILL BE HANDLED HERE

#include <vector>
#include <Adafruit_PCF8574.h>
#include <Wire.h>

#define PCF8574_ADDR 0x24  // Change the address if it's different
Adafruit_PCF8574 pcf8574;  // Create an instance of the PCF8574 class

extern volatile bool playing;

void bellEngine(void *parameter);
void tempEngine(void *parameter);

void bellEngine(void *parameter) {

  uint16_t melodyMap[5500];

  // read the melody from file and store it in RAM
  File melody_file = SPIFFS.open("/melody1.bin", "r");
  if (!melody_file) {
    Serial.println("failed to open file");
  }

  for (;;){
    Serial.println("Initializing Melody Read");

    std::vector<uint16_t> melody; 
    
    size_t fileSize = melody_file.size();
    size_t steps = fileSize / 2;
    melody.resize(steps);
    
    Serial.print("Debuggin - FileSize: ");
    Serial.print(fileSize);
    Serial.print(" Steps: ");
    Serial.println(steps);
    Serial.println("Continuing with Assignment");
    
    for (size_t i=0; i<steps; i++){
      melody[i] = melody_file.read() << 8 | melody_file.read();
    }
    
    for (size_t i=0; i<steps; i++){
      Serial.print("Current Step: ");
      Serial.print(i);
      Serial.print("  Current Beat in HEX: ");
      Serial.println(melody[i], HEX);
    }
    
    vTaskDelay(pdMS_TO_TICKS(5000));
    Serial.println("Closing File");
    melody_file.close();

    UBaseType_t highWaterMark = uxTaskGetStackHighWaterMark(NULL);
    Serial.print("Stack high water mark: ");
    Serial.println(highWaterMark);

  }

}

void tempEngine(void *parameter){
	
	// setup
  Wire.begin(4, 15);
	pcf8574.begin(PCF8574_ADDR);
  pcf8574.pinMode(0, OUTPUT);

	for (;;){
		//loop
		if (playing) {
			Serial.println("DING!");
      pcf8574.digitalWrite(0, LOW);
			vTaskDelay(pdMS_TO_TICKS(500));
      pcf8574.digitalWrite(0, HIGH);
			vTaskDelay(pdMS_TO_TICKS(500));      
		}
	}
}