#include <limits.h>
#include <SPI.h>
#include <SdFat.h>

SdFat SD;

#define CS_PIN SS

// HEAD Variables
char tuningNote[7];
float tuningFreq;
float lugCount;
float lugThreadPitch;
float bearEdgeId;
float bearEdgeExtProf;
char headBrand[11];
char headSeries[11];
char headModel[11];
float skirtHoopId;
float skirtLength;
float filmMaxDia;
float filmThickness;
double filmDensity;
int32_t filmElasMod;

extern String printBuffer;
extern File file;
extern const byte inputPullups[];
extern String fileNames[];
extern int currentIndex;
extern char btnPush;
extern String dirLevelOne[];
extern String dirLevelTwo[];
extern String dirLevelThree[];
extern String dirLevelFour[];
extern File dir;
extern String fileSelect[];
extern int fileCount;

extern byte fileNavLvlStart;
extern byte fileNavLvlCurrent;
extern byte fileNavLvlEnd;

void getFileList() {
  printBuffer = '\0';

  for( byte i = 0; i <= fileNavLvlEnd; i++ ) {
    if( fileSelect[i] != "\0" ) {
      // Serial.print( '/' + fileSelect[i] );
      printBuffer += '/' + fileSelect[i];
    }
  }

	filecount();
	for( byte i = 0; i < fileCount; i++ ) {
		fileNames[i] = getFileName(i+1);
		// Serial.println(dir);
	}

  // Serial.println(printBuffer);

	if( fileCount == 0 ) {
		Serial.println( "No files found!" );
	} else for( byte i = 0; i < fileCount; i++ ) {
		// Serial.println(fileNames[i]);
	}
  
	Serial.print("Selected file: ");
	Serial.println( fileNames[ currentIndex ] );
	keypadCleanup();
}

void setup() {
  for( byte i = 0; i < 6; i++ ) {
    pinMode(inputPullups[i], INPUT_PULLUP);
  }

  Serial.begin(9600);

  // Wait for USB Serial
  while (!Serial) {
    yield();
  }
  // Serial.println("Type any character to start");
  // while (!Serial.available()) {
    // yield();
  // }
  Serial.print("Initializing SD Card... ");
  // Initialize the SD.
  if (!SD.begin(CS_PIN)) {
    Serial.println("Failed!");
  }
  Serial.println("Success!");

  Serial.println("Generating Head Filepaths & Files...");
  // bass();
  // snare();
  toms();
  // headsTest();

  Serial.println("Generating Drum Filepaths & Files...");
  drums();

  /* Veryifying that files were created */
  // SD.ls(&Serial, LS_R);
  // Serial.println("Listing Files: Complete");
  // Serial.println();

  // browseSD();
  // browseSD2();

  fileSelect[0] = "HEADS";
  fileSelect[1] = "TOMS";
  fileSelect[2] = "BATT";
  fileSelect[3] = "Evans";
  fileSelect[4] = "Hydralic";

  // printBuffer = dirLevelOne[1] + '/' + dirLevelTwo[0];
  // dir = SD.open( printBuffer.c_str() );
  getFileList();
}
//------------------------------------------------------------------------------
void loop() {
  btnPush = readKeypad(); // Check keypad for presses
  keysFile(); // Increment index as needed per keypad reading
  // printKeypad();
  keypadCleanup();
}

/* NEED TO WRAP FILENAME DISPLAY IN--WHAT IS EFFECTIVELY--THIS
while( ( fileNavLvlCurrent >= fileNavLvlStart ) && (( fileNavLvlCurrent <= fileNavLvlEnd ) ) {
  while( ( select = 0 ) && ( back = 0 ) ) {
    listFiles();
  }
  if( select = 1 ) {
    filepath[ fileNavLvlCurrent ] = fileName;
    fileNavLvlCurrent++;
  } else if( back = 1 ) {
    fileNavLvlCurrent--;
    filepath[fileNavLvlCurrent] = '';
  }
}
if( fileNavLvlCurrent < fileNavLvlStart ) {
  // Update nothing
  loop();
} else if( fileNavLvlCurrent > fileNavLvlEnd ) {
  // Update relevant data
  printBuffer = '';
  for( i = 0; i = fileNavLvlEnd; i++) {
    printBuffer += filepath[i];
  }
  filecount();
}
*/