// midi.controller
// Sends midi program change ,midi notes and control change messages based on foot pedal pressed
#include <SoftwareSerial.h>
// Constants
#define LCD_pin 2
#define SWITCH1 3
#define SWITCH2 4
#define SWITCH3 5
#define SWITCH4 6
#define SWITCH5 7 
#define SWITCH6 8
#define SWITCH7 9
#define SWITCH8 10
#define BANK_DOWN 11
#define BANK_UP 12
#define ledPin 13

// Variables: 
int switches[8] = {SWITCH1, SWITCH2, SWITCH3, SWITCH4, SWITCH5, SWITCH6, SWITCH7, SWITCH8 };
int switchState[8] = {HIGH, HIGH, HIGH, HIGH, HIGH, HIGH, HIGH, HIGH }; // Initial state of switch is high due to internal pullup
int currentSwitch = 0;
int currentProgram = 0;   // current program - sent to the output
int note=0; //Midi Note (pitch)
short bank=1; // (actual bank selected)
int BANK_DOWNState = HIGH ;
int BANK_UPState = HIGH ;

int AnalogValue[6] = {0,0,0,0,0,0};    
// define the "lastValue" variables
int lastAnalogValue[6] = {0,0,0,0,0,0}; 
// select the midi Controller Number for each input
int midiCCselect[6] = {1,2,3,4,5,6};
// select threshold for each analog input  
int thresh[6] = {1,1,1,1,1,1}; 
// Select the midi channel Number for each input
int midichan[6]={0xB0 ,0xB0 ,0xB0 ,0xB0 ,0xB0 ,0xB0};
// select number of desired analog inputs (max 6)
int input_no = 6;
SoftwareSerial swSerial(LCD_pin, LCD_pin);

void setup() {
  pinMode(LCD_pin, OUTPUT);
  pinMode(ledPin, OUTPUT);
  digitalWrite(ledPin, HIGH); 
  //  Set MIDI baud rate:
  Serial.begin(31250);
  swSerial.begin(9600);
  // Setup Switches 
  pinMode(BANK_DOWN, INPUT);
  pinMode(BANK_UP, INPUT);
  for( currentSwitch = 0; currentSwitch < 8; currentSwitch++ ) {
    pinMode( switches[currentSwitch], INPUT );          // Set pin for switch
    digitalWrite( switches[currentSwitch], HIGH );      // Turn on internal pullup
  }
}

void loop() {
  // BANK SELECTOR start
    // check if the pushbutton is pressed.
 if(digitalRead (BANK_DOWN)==LOW) {
      delay(250);
     bank --;
    if (bank==0) {bank=9;}
  }
  delay(20);
  digitalWrite (BANK_DOWN ,HIGH);

  // check if the pushbutton is pressed.
  if (digitalRead (BANK_UP)==LOW) {
    delay(250);
    bank++;
    if (bank==10) {bank=1;}
   
  } 
  delay(20);
  digitalWrite(BANK_UP ,HIGH);
 
swSerial.print("?x13?y0");
swSerial.print("<");
swSerial.print("?x14?y0");
swSerial.print(bank);
swSerial.print("?x15?y0");
swSerial.print(">");
  
  for( currentSwitch = 0; currentSwitch < 8; currentSwitch++ ) {
    if((digitalRead(switches[currentSwitch]) != switchState[currentSwitch] )&&(switchState[currentSwitch] == HIGH)){
      // bank specific action:
      switch (bank) {
      case 1:
        //BANK 1 DEFINITION ******************
        switch( currentSwitch ) {
        case 0:
          currentProgram = 06;
          midiProg( 0xC0, currentProgram  );
          currentProgram = 51;
          midiProg( 0xC1, currentProgram  );
          swSerial.print("?x00?y1");
          swSerial.print("Slap Back       ");
          swSerial.print("?x00?y0");
          swSerial.print("Mesa Clean       ");
          break;
        case 1:
          currentProgram = 05;
          midiProg( 0xC0, currentProgram  );
          currentProgram = 53;
          midiProg( 0xC1, currentProgram  );
          swSerial.print("?x00?y1");
          swSerial.print("Old Die         ");
          swSerial.print("?x00?y0");
          swSerial.print("Acid  Vintage   ");
          break;
        case 2:
          currentProgram = 10;
          midiProg( 0xC0, currentProgram );
          currentProgram = 53;
          midiProg( 0xC1, currentProgram );
          swSerial.print("?x00?y1");
          swSerial.print("Dirty Delay     ");
          swSerial.print("?x00?y0");
          swSerial.print("Acid  Vintage   ");
          break;
        case 3:
          note=0x01;
          noteOn(0x90, note, 0x45);
          delay(200);
          noteOn(0x90, note, 0x00);
          swSerial.print("?x00?y1");
          swSerial.print("     tap        ");
          break;
        case 4:
          currentProgram = 51;
          midiProg( 0xC1, currentProgram );
          swSerial.print("?x00?y0");
          swSerial.print("Mesa Clean       ");
          break;  
        case 5:
          currentProgram = 55;
          midiProg( 0xC1, currentProgram ); 
          swSerial.print("?x00?y0");
          swSerial.print("Warm            ");
          break;
        case 6:
          currentProgram = 52;
          midiProg( 0xC1, currentProgram );
          swSerial.print("?x00?y0");
          swSerial.print("Pignose         ");
          break;
        case 7:
          currentProgram = 40;
          midiProg( 0xC1, currentProgram );
          swSerial.print("?x00?y0");
          swSerial.print("Big Muff Pi     ");
          break;    
        }
        break;
      case 2:
        //BANK 2 DEFINITION ******************
        switch( currentSwitch ) {
        case 0:
          currentProgram = 12;
          midiProg( 0xC0, currentProgram  );
          currentProgram = 55;
          midiProg( 0xC1, currentProgram  );
          swSerial.print("?x00?y1");
          swSerial.print("Fish Mood          ");
          swSerial.print("?x00?y0");
          swSerial.print("Warm            ");
          break;
        case 1:
          currentProgram = 8;
          midiProg( 0xC0, currentProgram  );
          currentProgram = 55;
          midiProg( 0xC1, currentProgram  );
          swSerial.print("?x00?y1");
          swSerial.print(" Power Chord    ");
          swSerial.print("?x00?y0");
          swSerial.print("Warm            ");
          break;
        case 2:
          currentProgram = 8;
          midiProg( 0xC0, currentProgram );
           currentProgram = 40;
          midiProg( 0xC1, currentProgram );
          swSerial.print("?x00?y1");
          swSerial.print(" Power Chord    ");
          swSerial.print("?x00?y0");
          swSerial.print("Big Muff Pi     ");
          break;
        case 3:
          note=0x02;
          noteOn(0x90, note, 0x45);
          delay(200);
          noteOn(0x90, note, 0x00);
          swSerial.print("?x00?y1");
          swSerial.print("FXB Mute        ");
          break;
        case 4:
          currentProgram = 52;
          midiProg( 0xC1, currentProgram );
          break;  
        case 5:
          currentProgram = 53;
          midiProg( 0xC1, currentProgram );
          swSerial.print("?x00?y0");
          swSerial.print("Acid  Vintage   ");
          break;
        case 6:
         currentProgram = 52;
          midiProg( 0xC1, currentProgram );
          swSerial.print("?x00?y0");
          swSerial.print("Pignose         ");
          break;
        case 7:
          currentProgram = 40;
          midiProg( 0xC1, currentProgram );
          swSerial.print("?x00?y0");
          swSerial.print("Big Muff Pi     ");
          break;    
        }
        break;    
      case 3:
        //BANK 3 DEFINITION ******************
        switch( currentSwitch ) {
        case 0:
           note=0x01;
          noteOn(0x90, note, 0x45);
          delay(200);
          noteOn(0x90, note, 0x00);
          swSerial.print("?x00?y1");
          swSerial.print("     Record     ");
          break;
        case 1:
           noteOn(0x90, note, 0x45);
          delay(200);
          noteOn(0x90, note, 0x00);
          swSerial.print("?x00?y1");
          swSerial.print("      Play      ");
          break;
        case 2:
         note=0x04;
          noteOn(0x90, note, 0x45);
          delay(200);
          noteOn(0x90, note, 0x00);
          swSerial.print("?x00?y1");
          swSerial.print("      Stop      "); 
          break;
        case 3:
          note=0x02;
          noteOn(0x90, note, 0x45);
          delay(200);
          noteOn(0x90, note, 0x00);
          swSerial.print("?x00?y1");
          swSerial.print("FXB Bypass      ");
          break;
        case 4:
          currentProgram = 19;
          midiProg( 0xC0, currentProgram );
           currentProgram = 40;
          midiProg( 0xC1, currentProgram );
          swSerial.print("?x00?y1");
          swSerial.print("Diatonic Looper ");
          swSerial.print("?x00?y0");
          swSerial.print("Big Muff Pi     ");
          break;  
        case 5:
          currentProgram = 15;
          midiProg( 0xC1, currentProgram );
          break;
        case 6:
          note=0x04;
          noteOn(0x90, note, 0x45);
          delay(200);
          noteOn(0x90, note, 0x00);
          swSerial.print("?x00?y1");
          swSerial.print("      Stop      "); 
          break;
        case 7:
          currentProgram = 15;
          midiProg( 0xC1, currentProgram );
          break;    
        }
        break;
      case 4:
        //BANK 4  DEFINITION ******************
        switch( currentSwitch ) {
                         case 0:
                         currentProgram = 12;
                         midiProg( 0xC0, currentProgram  );
                         currentProgram = 55;
                         midiProg( 0xC1, currentProgram  );
                         swSerial.print("?x00?y1");
                         swSerial.print("                ");
                         break;
                         case 1:
                         currentProgram = 10;
                         midiProg( 0xC0, currentProgram  );
                         currentProgram = 51;
                         midiProg( 0xC1, currentProgram  );
                         swSerial.print("?x00?y1");
                         swSerial.print("                ");
                         break;
                         case 2:
                         currentProgram = 11;
                         midiProg( 0xC0, currentProgram );
                         swSerial.print("?x00?y1");
                         swSerial.print("                ");
                         break;
                         case 3:
                         currentProgram = 13;
                         midiProg( 0xC0, currentProgram );
                         swSerial.print("?x00?y1");
                         swSerial.print("                ");
                         break;
                         case 4:
                         currentProgram = 14;
                         midiProg( 0xC1, currentProgram );
                         break;  
                         case 5:
                         currentProgram = 15;
                         midiProg( 0xC1, currentProgram );
                         break;
                         case 6:
                         currentProgram = 06;
                         midiProg( 0xC1, currentProgram );
                         break;
                         case 7:
                         currentProgram = 15;
                         midiProg( 0xC1, currentProgram );
                         break;    
                       }
        break;
      case 5:
        //BANK 5  DEFINITION ******************
        switch( currentSwitch ) {
                         case 0:
                         currentProgram = 12;
                         midiProg( 0xC0, currentProgram  );
                         currentProgram = 55;
                         midiProg( 0xC1, currentProgram  );
                         swSerial.print("?x00?y1");
                         swSerial.print("                ");
                         break;
                         case 1:
                         currentProgram = 10;
                         midiProg( 0xC0, currentProgram  );
                         currentProgram = 51;
                         break;
                         case 2:
                         currentProgram = 11;
                         midiProg( 0xC0, currentProgram );
                         swSerial.print("?x00?y1");
                         swSerial.print("                ");
                         break;
                         case 3:
                         currentProgram = 13;
                         midiProg( 0xC0, currentProgram );
                         swSerial.print("?x00?y1");
                         swSerial.print("                ");
                         break;
                         case 4:
                         currentProgram = 14;
                         midiProg( 0xC1, currentProgram );
                         break;  
                         case 5:
                         currentProgram = 15;
                         midiProg( 0xC1, currentProgram );
                         break;
                         case 6:
                         currentProgram = 06;
                         midiProg( 0xC1, currentProgram );
                         break;
                         case 7:
                         currentProgram = 15;
                         midiProg( 0xC1, currentProgram );
                         break;    
                      }
        break;
         case 6:
      //BANK 6  DEFINITION ******************
        switch( currentSwitch ) {

                         case 0:
                           // BANK 6-action 1
                        break;
                           
                        case 1:
                           // BANK 6-action 2
                        break;

                        case 2:
                           // BANK 6-action 3
                        break;
                        
                         case 3:
                          // BANK 6-action 4
                        break;

                        case 4:
                          // BANK 6-action 5
                        break;
                         
                        case 5:
                          // BANK 6-action 6
                        break;
                        
                        case 6:
                          // BANK 6-action 7
                        break;

                        case 7:
                          // BANK 6-action 8
                        break;
                      }
      break;

       case 7:
      //BANK 7  DEFINITION ******************
        switch( currentSwitch ) {

                        case 0:
                           // BANK 7-action 1
                        break;
                           
                        case 1:
                           // BANK 7-action 2
                        break;

                        case 2:
                           // BANK 7-action 3
                        break;
                        
                         case 3:
                          // BANK 7-action 4
                        break;

                        case 4:
                          // BANK 7-action 5
                        break;
                         
                        case 5:
                          // BANK 7-action 6
                        break;
                        
                        case 6:
                          // BANK 7-action 7
                        break;

                        case 7:
                          // BANK 7-action 8
                        break;
                      }
      break;

       case 8:
      //BANK 8  DEFINITION ******************
        switch( currentSwitch ) {

                         case 0:
                           // BANK 8-action 1
                        break;
                           
                        case 1:
                           // BANK 8-action 2
                        break;

                        case 2:
                           // BANK 8-action 3
                        break;
                        
                         case 3:
                          // BANK 8-action 4
                        break;

                        case 4:
                          // BANK 8-action 5
                        break;
                         
                        case 5:
                          // BANK 8-action 6
                        break;
                        
                        case 6:
                          // BANK 8-action 7
                        break;

                        case 7:
                          // BANK 8-action 8
                        break;
                      }
      break;

       case 9:
      //BANK 9  DEFINITION ******************
        switch( currentSwitch ) {

                         case 0:
                           // BANK 9-action 1
                        break;
                           
                        case 1:
                           // BANK 9-action 2
                        break;

                        case 2:
                           // BANK 9-action 3
                        break;
                        
                         case 3:
                          // BANK 9-action 4
                        break;

                        case 4:
                          // BANK 9-action 5
                        break;
                         
                        case 5:
                          // BANK 9-action 6
                        break;
                        
                        case 6:
                          // BANK 9-action 7
                        break;

                        case 7:
                          // BANK 9-action 8
                        break;
             }
        break;
      }
    }
    switchState[currentSwitch] = digitalRead( switches[currentSwitch] );
  }  

  for(int i=0;i<input_no;i++){

         //adjust the pot 1 range 
          AnalogValue[0] = map (analogRead(0), 60 ,1020 ,0 ,127);   // Map the value to 0-127
         //adjust the pot 2 range 
          AnalogValue[1] = map (analogRead(1), 20 ,1020 ,0 ,127);   // Map the value to 0-127
         //adjust the pot 3 range 
          AnalogValue[2] = map (analogRead(2), 0 ,1020 ,0 ,127);   // Map the value to 0-127
         //adjust the pot 4 range 
          AnalogValue[3] = map (analogRead(3), 20 ,1020 ,0 ,127);   // Map the value to 0-127
         //adjust the pot 5 range 
          AnalogValue[4] = map (analogRead(4), 20 ,1020 ,0 ,127);   // Map the value to 0-127
         //adjust the pot 6 range 
          AnalogValue[5] = map (analogRead(5), 0 ,1023 ,0 ,127);   // Map the value to 0-127 (regular value for 10k pot)
         //HIGHER value
     if ( AnalogValue[i]>127 ) 
          AnalogValue[i] = 127 ;
         //LOWER value 
     if (AnalogValue [i] < 0) 
          AnalogValue[i] = 0 ; {
           
     if ( AnalogValue[i] != lastAnalogValue[i] ) {
        //send control change on cc#i
        midiCC(midichan[i], midiCCselect[i], AnalogValue[i]);
        // update lastAnalogValue variable
        lastAnalogValue[i] = AnalogValue[i];

        //End if
      }
      //End if
    }
    //End for 
  }
  //End Loop
}  
//  Send a three byte midi message  
void midiSend(char status, char data1, char data2) {
  Serial.print(status, BYTE);
  Serial.print(data1, BYTE);
  Serial.print(data2, BYTE);
}

//  Send a two byte midi message  
void midiProg(char status, int data ) {
  Serial.print(status, BYTE);
  Serial.print(data, BYTE);
}
// This function sends a Midi CC. 
void midiCC(char CC_data, char c_num, char c_val){
  Serial.print(CC_data, BYTE);
  Serial.print(c_num, BYTE);
  Serial.print(c_val, BYTE);
}
//  plays a MIDI note.  Doesn't check to see that
//  cmd is greater than 127, or that data values are  less than 127:
//  this function from: http://arduino.cc/en/Tutorial/Midi
void noteOn(int cmd, int pitch, int velocity) {
  Serial.print(cmd, BYTE);
  Serial.print(pitch, BYTE);
  Serial.print(velocity, BYTE);
}