#include <SD.h>
#include <SDConfig.h>
#include "FS.h"
#define SD_CS          5
#define SPI_MOSI      23
#define SPI_MISO      19
#define SPI_SCK       18

unsigned long hexValue = 0xE227568C;
char asciiHexString[9];
String tag_string; //= "E227568C,52C7568C,14CB27AC,6435CDAB,E46928AC,948DFDAB,F400FCAB,0492FBAB,A46420AC";
String mp3_string; //= "01.mp3,02.mp3,03.mp3,04.mp3,05.mp3,06.mp3,07.mp3,08.mp3,09.mp3";
int i;
#define LINELENGTH 127
char configFile[] = "/config.txt"; // filename

char *wifi_ssid = 0;
char *wifi_pwd = 0;
char *tag_string = 0;
char *mp3_string = 0;
char *tekst;

void setup() {
  Serial.begin(9600);
  SPI.begin();
  if (!SD.begin(SD_CS, SPI)){
    Serial.println("Card Mount Failed");
    while (1);
  }
  else { Serial.println("SD OK"); }

}

void loop() {
  if (readConfiguration() == false ) {
    return;
  }
  convertAndStoreAsciiHex(hexValue, asciiHexString);
  Serial.println(asciiHexString);  // Print the result
  i = tag_string.indexOf(asciiHexString);
  if ( i != 0 ) i= (i/9)*7;
  Serial.println(i);
  Serial.println(mp3_string.substring(i,i+6));

  while(1);
}

void convertAndStoreAsciiHex(unsigned long hexValue, char *result) {
  result[0] = '\0';
  for (int i = 3; i >= 0; i--) {
    byte hexByte = (hexValue >> (i * 8)) & 0xFF;
    sprintf(result, "%s%02X", result, hexByte);
  }
}
boolean readConfiguration() {
   SDConfig cfg;
  // Open the configuration file.
  if (!cfg.begin(configFile, LINELENGTH)) {
    Serial.print("Failed to open configuration file: ");
    Serial.println(configFile);
    return false;
  }
  // Read each setting from the file.
  while (cfg.readNextSetting()) {
    if (cfg.nameIs("ssid")) {
      wifi_ssid = cfg.copyValue();
      Serial.print("Read ssid: ");
      Serial.println(wifi_ssid);
    } else if (cfg.nameIs("password")) {
      wifi_pwd = cfg.copyValue();
      Serial.print("Read password: ");
      Serial.println(wifi_pwd);
    } else if (cfg.nameIs("tag_array")) {
      tag_string = cfg.copyValue();
      Serial.print("Read tag string: ");
      Serial.println(tag_string);
    } else if (cfg.nameIs("mp3_array")) {
      mp3_string = cfg.copyValue();
      Serial.print("Read mp3 string: ");
      Serial.println(mp3_string);
    } else {
      // report unrecognized names.
      Serial.print("Unknown name in config: ");
      Serial.println(cfg.getName());
    }
  }
  // clean up
  cfg.end();
  return true;
}