// imWare

// Wednesday, February 14, 1990

// James Beninghaus

#include    <stdio.h>

#include    <string.h>

#include    <ToolUtils.h>

#include    <Errors.h>

#include    <cd.h>

#define sUNDEF          0

#define sDRIVE          1

#define sPLAY           2

#define sPAUSE          3

#define sCONTINUE       4

#define sSTOP           5

#define sEJECT          6

#define min(a, b)       (a<b ? a:b)

#define max(a, b)       (a>b ? a:b)

void Usage() {

    printf("cd [-drive 1..6] [-play [1..73 [1..73]] [stereo | mono] | -pause | -continue | -stop | -eject]\n");

    exit(paramErr);

}

main (int argc, char *argv[]) {

    auto    OSErr   osErr;

    auto    short   drive,

                    ioRefNum,

                    count,

                    track,

                    state;

    auto    Byte    userCDNumber,

                    userStart, 

                    userStop,

                    discStart,

                    discStop,

                    audioStatus,

                    playMode,

                    cntlField,

                    minutes,

                    seconds,

                    frames;

    auto    Boolean discInPlace;

    InitGraf((Ptr) &qd.thePort);

    state           = sUNDEF;

    userCDNumber    = 1;

    userStart       = 0;

    userStop        = 100;

    playMode        = STEREO;

    count = 0;

    while (++count < argc)

        if (0 == strcmp("-drive", argv[count]))

            state = sDRIVE;

        else if (1 == sscanf(argv[count], "%hd", &drive) && 1 <= drive && drive <= 6 && sDRIVE == state) {

            state = sUNDEF;

            userCDNumber = (Byte) drive;

        } else if (0 == strcmp("-play", argv[count]) && sUNDEF == state)

            state = sPLAY;

        else if (1 == sscanf(argv[count], "%hd", &track) && 1 <= track && track <= 73 && sPLAY == state)    

            if (0 == userStart)

                userStart = (Byte) track;

            else

                userStop = (Byte) track;

        else if (0 == strcmp("stereo", argv[count]) && sPLAY == state)

            playMode = STEREO;

        else if (0 == strcmp("mono", argv[count]) && sPLAY == state)

            playMode = MONO;

        else if (0 == strcmp("-pause", argv[count]) && sUNDEF == state)

            state = sPAUSE;

        else if (0 == strcmp("-continue", argv[count]) && sUNDEF == state)

            state = sCONTINUE;

        else if (0 == strcmp("-stop", argv[count]) && sUNDEF == state)

            state = sSTOP;

        else if (0 == strcmp("-eject", argv[count]) && sUNDEF == state)

            state = sEJECT;

        else

            Usage();

    osErr = OpenCD(userCDNumber, &ioRefNum);

    if (noErr == osErr)

        osErr = DiscStatus(ioRefNum, &discInPlace);

        if (noErr == osErr) {

            if (discInPlace) {

                switch (state) {

                    case sUNDEF :

                    case sDRIVE :

                    case sPLAY :

                        osErr = TrackCount(ioRefNum, &discStop);

                        if (noErr == osErr) {

                            discStart = 0; 

                            do 

                                osErr = TrackInfo(ioRefNum, ++discStart, &cntlField, &minutes, &seconds, &frames);

                            while (BitTst(&cntlField, 5) && noErr == osErr); 

                            if (noErr == osErr) {

                                osErr = AStop(ioRefNum, max(min(userStop, discStop), discStart));

                                if (noErr == osErr) 

                                    osErr = APlay(ioRefNum, min(max(userStart, discStart), discStop), playMode);

                            }

                        }

                        break;

                    case sPAUSE :

                        osErr = AStatus(ioRefNum, &audioStatus, &playMode, &cntlField, &minutes, &seconds, &frames);

                        if (noErr == osErr)

                            if (PLAYING == audioStatus)

                                osErr = APause(ioRefNum, PAUSE);

                        break;

                    case sCONTINUE :

                        osErr = AStatus(ioRefNum, &audioStatus, &playMode, &cntlField, &minutes, &seconds, &frames);

                        if (noErr == osErr)

                            if (PAUSED == audioStatus) 

                                osErr = APause(ioRefNum, CONTINUE);

                        break;

                    case sSTOP :

                        osErr = AStop(ioRefNum, 0);

                        break;

                    case sEJECT :

                        osErr = EjectCD(ioRefNum);

                        break;

                }

            }

        }

    exit(osErr);

}