// Miscellaneous parsing and error functions for use with STK demo program.
//
// Gary P. Scavone, 1999.

#include <cstring>
#include "utilities.h"

// STK Instrument Classes
#include "Clarinet.h"
#include "BlowHole.h"
#include "Saxofony.h"
#include "Flute.h"
#include "Brass.h"
#include "BlowBotl.h"
#include "Bowed.h"
#include "Plucked.h"
#include "StifKarp.h"
#include "Sitar.h"
#include "Mandolin.h"
#include "Rhodey.h"
#include "Wurley.h"
#include "TubeBell.h"
#include "HevyMetl.h"
#include "PercFlut.h"
#include "BeeThree.h"
#include "FMVoices.h"
#include "VoicForm.h"
#include "Moog.h"
#include "Simple.h"
#include "Drummer.h"
#include "BandedWG.h"
#include "Shakers.h"
#include "ModalBar.h"
#include "Mesh2D.h"
#include "Resonate.h"
#include "Whistle.h"

using namespace stk;

#define NUM_INSTS 28

// The order of the following list is important.  The location of a particular
// instrument in the list should correspond to that instrument's ProgramChange
// number (i.e. Clarinet = ProgramChange 0).
char insts[NUM_INSTS][10] = { "Clarinet", "BlowHole", "Saxofony", "Flute", "Brass",
                              "BlowBotl", "Bowed", "Plucked", "StifKarp", "Sitar", "Mandolin",
                              "Rhodey", "Wurley", "TubeBell", "HevyMetl", "PercFlut",
                              "BeeThree", "FMVoices", "VoicForm", "Moog", "Simple", "Drummer",
                              "BandedWG", "Shakers", "ModalBar", "Mesh2D", "Resonate", "Whistle" };

int voiceByNumber(int number, Instrmnt **instrument)
{
  int temp = number;
  
  if     (number==0)  *instrument = new Clarinet(10.0);
  else if (number==1)  *instrument = new BlowHole(10.0);
  else if (number==2)  *instrument = new Saxofony(10.0);
  else if (number==3)  *instrument = new Flute(10.0);
  else if (number==4)  *instrument = new Brass(10.0);
  else if (number==5)  *instrument = new BlowBotl;
  else if (number==6)  *instrument = new Bowed(10.0);
  else if (number==7)  *instrument = new Plucked(5.0);
  else if (number==8)  *instrument = new StifKarp(5.0);
  else if (number==9)  *instrument = new Sitar(5.0);
  else if (number==10) *instrument = new Mandolin(5.0);

  else if (number==11) *instrument = new Rhodey;
  else if (number==12) *instrument = new Wurley;
  else if (number==13) *instrument = new TubeBell;
  else if (number==14) *instrument = new HevyMetl;
  else if (number==15) *instrument = new PercFlut;
  else if (number==16) *instrument = new BeeThree;
  else if (number==17) *instrument = new FMVoices;

  else if (number==18) *instrument = new VoicForm;
  else if (number==19) *instrument = new Moog;
  else if (number==20) *instrument = new Simple;
  else if (number==21) *instrument = new Drummer;
  else if (number==22) *instrument = new BandedWG;
  else if (number==23) *instrument = new Shakers;
  else if (number==24) *instrument = new ModalBar;
  else if (number==25) *instrument = new Mesh2D(10, 10);
  else if (number==26) *instrument = new Resonate;
  else if (number==27) *instrument = new Whistle;

  else {
    printf("\nUnknown instrument or program change requested!\n");
    temp = -1;
  }

  return temp;
}

int voiceByName(char *name, Instrmnt **instrument)
{
  int i = 0, temp = -1, notFound = 1;;

  while ( i < NUM_INSTS && notFound ) {
    if ( !strcmp(name, insts[i]) ) {
      notFound = 0;
      temp = voiceByNumber(i, instrument);
    }
    i++;
  }

  if (temp < 0) 
    printf("\nUnknown instrument or program change requested!\n");

  return temp;
}

void usage(char *function) {
  // Error function in case of incorrect command-line argument specifications
  int i, j;

  printf("\nuseage: %s Instrument flag(s) \n", function);
  printf("        where flag = -s RATE to specify a sample rate,\n");
  printf("        -n NUMBER specifies the number of voices to allocate,\n");
  printf("        -ow <file name> for .wav audio output file,\n");
  printf("        -os <file name> for .snd audio output file,\n");
  printf("        -om <file name> for .mat audio output file,\n");
  printf("        -oa <file name> for .aif audio output file,\n");
#if defined(__STK_REALTIME__)
  printf("        -or for realtime audio output,\n");
#endif
  printf("        -if <file name> to read control input from SKINI file,\n");
#if defined(__STK_REALTIME__)
  printf("        -ip for realtime control input by pipe,\n");
  printf("        -im <port> for realtime control input by MIDI (virtual port = 0, default = 1),\n");
#endif
  printf("        and Instrument = one of these:\n");
  for ( i=0; i<NUM_INSTS; i+=8 ) {
    for ( j=0; j<8 && (i+j)<NUM_INSTS; j++ ) {
      printf("%s ",insts[i+j]);
    }
    printf("\n");
  }
  printf("\nSimultaneous multiple output types are supported.\n");
  printf("Likewise, simultaneous control input types are supported.\n");
  printf("SKINI formatted scorefiles can be piped or redirected\n");
  printf("to %s, though realtime control flags should be omitted\n", function);
  printf("when doing so. If the optional <file names> are not\n");
  printf("specified, default names will be indicated.  Each flag\n");
  printf("must include its own '-' sign.\n\n");
  exit(0);
}

int checkArgs(int nArgs, char *args[])
{
  int w, i = 2, j = 0;
  int nWvOuts = 0;
  char flags[2][50] = {""};
  bool realtime = false;

  if (nArgs < 3 || nArgs > 22) usage(args[0]);

  while (i < nArgs) {
    if (args[i][0] == '-') {
      if (args[i][1] == 'o') {
        if ( args[i][2] == 'r' ) realtime = true;
        if ( (args[i][2] == 's') || (args[i][2] == 'w') ||
             (args[i][2] == 'm') || (args[i][2] == 'a') )
          nWvOuts++;
        flags[0][j] = 'o';
        flags[1][j++] = args[i][2];
      }
      else if (args[i][1] == 'i') {
        if ( (args[i][2] != 'p') && (args[i][2] != 'm') &&
             (args[i][2] != 'f') ) usage(args[0]);
        flags[0][j] = 'i';
        flags[1][j++] = args[i][2];
      }
      else if (args[i][1] == 's' && (i+1 < nArgs) && args[i+1][0] != '-' ) {
        Stk::setSampleRate( atoi(args[i+1]) );
        flags[0][j++] = 's';
      }
      else if (args[i][1] == 'n' && (i+1 < nArgs) && args[i+1][0] != '-' ) {
        flags[0][j++] = 'n';
      }
      else usage(args[0]);
    }
    i++;
  }

  // Check for multiple flags of the same type
  for ( i=0; i<=j; i++ ) {
    w = i+1;
    while  (w <= j ) {
      if ( flags[0][i] == flags[0][w] && flags[1][i] == flags[1][w] ) {
        printf("\nError: Multiple command line flags of the same type specified.\n\n");
        usage(args[0]);
      }
      w++;
    }
  }

  // Make sure we have at least one output type
  if ( nWvOuts < 1 && !realtime ) usage(args[0]);

  return nWvOuts;
}

int countVoices(int nArgs, char *args[])
{
  int i = 2, nInstruments = 1;

  while ( i < nArgs ) {
    if ( strncmp( args[i], "-n", 2) == 0 ) {
      if ( i+1 < nArgs && args[i+1][0] != '-' ) {
        nInstruments = atoi( args[i+1] );
        if ( nInstruments < 1 ) nInstruments = 1;
      }
    }
    i++;
  }

  return nInstruments;
}

bool parseArgs(int nArgs, char *args[], WvOut **output, Messager& messager)
{
  int i = 2, j = 0, nWvIns = 0;
  bool realtime = false;
  char fileName[256];

  while (i < nArgs) {
    if ( (args[i][0] == '-') && (args[i][1] == 'i') ) {
      switch(args[i][2]) {

      case 'f':
        strcpy(fileName,args[++i]);
        if ( !messager.setScoreFile( fileName ) ) exit(0);
        nWvIns++;
        break;

      case 'p':
#if defined(__STK_REALTIME__)
        if ( !messager.startStdInput() ) exit(0);
        nWvIns++;
        break;
#else
        usage(args[0]);
#endif

      case 'm':
#if defined(__STK_REALTIME__)
        // Check for an optional MIDI port argument.
        if ((i+1 < nArgs) && args[i+1][0] != '-') {
          int port = atoi(args[++i]);
          if ( !messager.startMidiInput( port-1 ) ) exit(0);
        }
        else if ( !messager.startMidiInput() ) exit(0);
        nWvIns++;
        break;
#else
        usage(args[0]);
#endif

      default:
        usage(args[0]);
        break;
      }
    }
    else if ( (args[i][0] == '-') && (args[i][1] == 'o') ) {
      switch(args[i][2]) {

      case 'r':
#if defined(__STK_REALTIME__)
        realtime = true;
        break;
#else
        usage(args[0]);
#endif

      case 'w':
        if ((i+1 < nArgs) && args[i+1][0] != '-') {
          i++;
          strcpy(fileName,args[i]);
        }
        else strcpy(fileName,"testwav");
        output[j] = new FileWvOut(fileName, 1, FileWrite::FILE_WAV );
        j++;
        break;
          
      case 's':
        if ((i+1 < nArgs) && args[i+1][0] != '-') {
          i++;
          strcpy(fileName,args[i]);
        }
        else strcpy(fileName,"testsnd");
        output[j] = new FileWvOut(fileName,1, FileWrite::FILE_SND);
        j++;
        break;
          
      case 'm':
        if ((i+1 < nArgs) && args[i+1][0] != '-') {
          i++;
          strcpy(fileName,args[i]);
        }
        else strcpy(fileName,"testmat");
        output[j] = new FileWvOut(fileName,1, FileWrite::FILE_MAT);
        j++;
        break;

      case 'a':
        if ((i+1 < nArgs) && args[i+1][0] != '-') {
          i++;
          strcpy(fileName,args[i]);
        }
        else strcpy(fileName,"testaif");
        output[j] = new FileWvOut(fileName,1, FileWrite::FILE_AIF );
        j++;
        break;
          
      default:
        usage(args[0]);
        break;
      }
    }
    i++;
  }

  if ( nWvIns == 0 ) {
#if defined(__STK_REALTIME__)
    if ( !messager.startStdInput() ) exit(0);
#else
    printf("\nError: The -if file input flag must be specified for non-realtime use.\n\n");
    usage(args[0]);
#endif
  }

  return realtime;
}