/*
 * Copyright (C) 1996-1997 Id Software, Inc.
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License as published by the Free
 * Software Foundation; either version 2 of the License, or (at your option)
 * any later version.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.
 *
 * See the GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License along with
 * this program; if not, write to the Free Software Foundation, Inc., 59 Temple
 * Place - Suite 330, Boston, MA 02111-1307, USA.
 *
 */
// cd_win.c

#include <windows.h>
#include "quakedef.h"

extern HWND   mainwindow;
extern cvar_t bgmvolume;

static qboolean cdValid = false;
static qboolean playing = false;
static qboolean wasPlaying = false;
static qboolean initialized = false;
static qboolean enabled = false;
static qboolean playLooping = false;
static float  cdvolume;
static byte   remap[100];
static byte   cdrom;
static byte   playTrack;
static byte   maxTrack;

UINT          wDeviceID;

static void CDAudio_Eject (void) {
    DWORD         dwReturn;

    if (dwReturn = mciSendCommand (wDeviceID, MCI_SET, MCI_SET_DOOR_OPEN, (DWORD) NULL))
        Con_DPrintf ("MCI_SET_DOOR_OPEN failed (%i)\n", dwReturn);
}

static void CDAudio_CloseDoor (void) {
    DWORD         dwReturn;

    if (dwReturn = mciSendCommand (wDeviceID, MCI_SET, MCI_SET_DOOR_CLOSED, (DWORD) NULL))
        Con_DPrintf ("MCI_SET_DOOR_CLOSED failed (%i)\n", dwReturn);
}

static int CDAudio_GetAudioDiskInfo (void) {
    DWORD         dwReturn;
    MCI_STATUS_PARMS mciStatusParms;

    cdValid = false;

    mciStatusParms.dwItem = MCI_STATUS_READY;
    dwReturn = mciSendCommand (wDeviceID, MCI_STATUS, MCI_STATUS_ITEM | MCI_WAIT, (DWORD) (LPVOID) & mciStatusParms);
    if (dwReturn) {
        Con_DPrintf ("CDAudio: drive ready test - get status failed\n");
        return -1;
    }
    if (!mciStatusParms.dwReturn) {
        Con_DPrintf ("CDAudio: drive not ready\n");
        return -1;
    }

    mciStatusParms.dwItem = MCI_STATUS_NUMBER_OF_TRACKS;
    dwReturn = mciSendCommand (wDeviceID, MCI_STATUS, MCI_STATUS_ITEM | MCI_WAIT, (DWORD) (LPVOID) & mciStatusParms);
    if (dwReturn) {
        Con_DPrintf ("CDAudio: get tracks - status failed\n");
        return -1;
    }
    if (mciStatusParms.dwReturn < 1) {
        Con_DPrintf ("CDAudio: no music tracks\n");
        return -1;
    }

    cdValid = true;
    maxTrack = mciStatusParms.dwReturn;

    return 0;
}

void CDAudio_Play (byte track, qboolean looping) {
    DWORD         dwReturn;
    MCI_PLAY_PARMS mciPlayParms;
    MCI_STATUS_PARMS mciStatusParms;

    if (!enabled)
        return;

    if (!cdValid) {
        CDAudio_GetAudioDiskInfo ();
        if (!cdValid)
            return;
    }

    track = remap[track];

    if (track < 1 || track > maxTrack) {
        Con_DPrintf ("CDAudio: Bad track number %u.\n", track);
        return;
    }
    // don't try to play a non-audio track
    mciStatusParms.dwItem = MCI_CDA_STATUS_TYPE_TRACK;
    mciStatusParms.dwTrack = track;
    dwReturn =
        mciSendCommand (wDeviceID, MCI_STATUS, MCI_STATUS_ITEM | MCI_TRACK | MCI_WAIT,
                        (DWORD) (LPVOID) & mciStatusParms);
    if (dwReturn) {
        Con_DPrintf ("MCI_STATUS failed (%i)\n", dwReturn);
        return;
    }
    if (mciStatusParms.dwReturn != MCI_CDA_TRACK_AUDIO) {
        Con_Printf ("CDAudio: track %i is not audio\n", track);
        return;
    }
    // get the length of the track to be played
    mciStatusParms.dwItem = MCI_STATUS_LENGTH;
    mciStatusParms.dwTrack = track;
    dwReturn =
        mciSendCommand (wDeviceID, MCI_STATUS, MCI_STATUS_ITEM | MCI_TRACK | MCI_WAIT,
                        (DWORD) (LPVOID) & mciStatusParms);
    if (dwReturn) {
        Con_DPrintf ("MCI_STATUS failed (%i)\n", dwReturn);
        return;
    }

    if (playing) {
        if (playTrack == track)
            return;
        CDAudio_Stop ();
    }

    mciPlayParms.dwFrom = MCI_MAKE_TMSF (track, 0, 0, 0);
    mciPlayParms.dwTo = (mciStatusParms.dwReturn << 8) | track;
    mciPlayParms.dwCallback = (DWORD) mainwindow;
    dwReturn = mciSendCommand (wDeviceID, MCI_PLAY, MCI_NOTIFY | MCI_FROM | MCI_TO, (DWORD) (LPVOID) & mciPlayParms);
    if (dwReturn) {
        Con_DPrintf ("CDAudio: MCI_PLAY failed (%i)\n", dwReturn);
        return;
    }

    playLooping = looping;
    playTrack = track;
    playing = true;

    if (cdvolume == 0.0)
        CDAudio_Pause ();
}

void CDAudio_Stop (void) {
    DWORD         dwReturn;

    if (!enabled)
        return;

    if (!playing)
        return;

    if (dwReturn = mciSendCommand (wDeviceID, MCI_STOP, 0, (DWORD) NULL))
        Con_DPrintf ("MCI_STOP failed (%i)", dwReturn);

    wasPlaying = false;
    playing = false;
}

void CDAudio_Pause (void) {
    DWORD         dwReturn;
    MCI_GENERIC_PARMS mciGenericParms;

    if (!enabled)
        return;

    if (!playing)
        return;

    mciGenericParms.dwCallback = (DWORD) mainwindow;
    if (dwReturn = mciSendCommand (wDeviceID, MCI_PAUSE, 0, (DWORD) (LPVOID) & mciGenericParms))
        Con_DPrintf ("MCI_PAUSE failed (%i)", dwReturn);

    wasPlaying = playing;
    playing = false;
}

void CDAudio_Resume (void) {
    DWORD         dwReturn;
    MCI_PLAY_PARMS mciPlayParms;

    if (!enabled)
        return;

    if (!cdValid)
        return;

    if (!wasPlaying)
        return;

    mciPlayParms.dwFrom = MCI_MAKE_TMSF (playTrack, 0, 0, 0);
    mciPlayParms.dwTo = MCI_MAKE_TMSF (playTrack + 1, 0, 0, 0);
    mciPlayParms.dwCallback = (DWORD) mainwindow;
    dwReturn = mciSendCommand (wDeviceID, MCI_PLAY, MCI_TO | MCI_NOTIFY, (DWORD) (LPVOID) & mciPlayParms);
    if (dwReturn) {
        Con_DPrintf ("CDAudio: MCI_PLAY failed (%i)\n", dwReturn);
        return;
    }
    playing = true;
}

static void CD_f (void) {
    char         *command;
    int           ret, n;

    if (Cmd_Argc () < 2)
        return;

    command = Cmd_Argv (1);

    if (!Q_strcasecmp (command, "on")) {
        enabled = true;
        return;
    }

    if (!Q_strcasecmp (command, "off")) {
        if (playing)
            CDAudio_Stop ();
        enabled = false;
        return;
    }

    if (!Q_strcasecmp (command, "reset")) {
        enabled = true;
        if (playing)
            CDAudio_Stop ();
        for (n = 0; n < 100; n++)
            remap[n] = n;
        CDAudio_GetAudioDiskInfo ();

        return;
    }

    if (!Q_strcasecmp (command, "remap")) {
        ret = Cmd_Argc () - 2;
        if (ret <= 0) {
            for (n = 1; n < 100; n++)
                if (remap[n] != n)
                    Con_Printf ("  %u -> %u\n", n, remap[n]);
            return;
        }
        for (n = 1; n <= ret; n++)
            remap[n] = Q_atoi (Cmd_Argv (n + 1));

        return;
    }

    if (!Q_strcasecmp (command, "close")) {
        CDAudio_CloseDoor ();
        return;
    }

    if (!cdValid) {
        CDAudio_GetAudioDiskInfo ();
        if (!cdValid) {
            Con_Printf ("No CD in player.\n");
            return;
        }
    }

    if (!Q_strcasecmp (command, "play")) {
        CDAudio_Play ((byte) Q_atoi (Cmd_Argv (2)), false);
        return;
    }

    if (!Q_strcasecmp (command, "loop")) {
        CDAudio_Play ((byte) Q_atoi (Cmd_Argv (2)), true);
        return;
    }

    if (!Q_strcasecmp (command, "stop")) {
        CDAudio_Stop ();
        return;
    }

    if (!Q_strcasecmp (command, "pause")) {
        CDAudio_Pause ();
        return;
    }

    if (!Q_strcasecmp (command, "resume")) {
        CDAudio_Resume ();
        return;
    }

    if (!Q_strcasecmp (command, "eject")) {
        if (playing)
            CDAudio_Stop ();
        CDAudio_Eject ();
        cdValid = false;

        return;
    }

    if (!Q_strcasecmp (command, "info")) {
        Con_Printf ("%u tracks\n", maxTrack);
        if (playing)
            Con_Printf ("Currently %s track %u\n", playLooping ? "looping" : "playing", playTrack);
        else if (wasPlaying)
            Con_Printf ("Paused %s track %u\n", playLooping ? "looping" : "playing", playTrack);
        Con_Printf ("Volume is %f\n", cdvolume);

        return;
    }
}

LONG CDAudio_MessageHandler (HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam) {
    if (lParam != wDeviceID)
        return 1;

    switch (wParam) {
        case MCI_NOTIFY_SUCCESSFUL:
            if (playing) {
                playing = false;
                if (playLooping)
                    CDAudio_Play (playTrack, true);
            }
            break;

        case MCI_NOTIFY_ABORTED:
        case MCI_NOTIFY_SUPERSEDED:
            break;

        case MCI_NOTIFY_FAILURE:
            Con_DPrintf ("MCI_NOTIFY_FAILURE\n");
            CDAudio_Stop ();
            cdValid = false;
            break;

        default:
            Con_DPrintf ("Unexpected MM_MCINOTIFY type (%i)\n", wParam);
            return 1;
    }

    return 0;
}

void CDAudio_Update (void) {
    if (!enabled)
        return;

    if (bgmvolume.value != cdvolume) {
        if (cdvolume) {
            Cvar_SetValue (&bgmvolume, 0.0);
            cdvolume = bgmvolume.value;
            CDAudio_Pause ();
        } else {
            Cvar_SetValue (&bgmvolume, 1.0);
            cdvolume = bgmvolume.value;
            CDAudio_Resume ();
        }
    }
}

int CDAudio_Init (void) {
    DWORD         dwReturn;
    MCI_OPEN_PARMS mciOpenParms;
    MCI_SET_PARMS mciSetParms;
    int           n;

    if (cls.state == ca_dedicated || COM_CheckParm ("-nocdaudio"))
        return -1;

    mciOpenParms.lpstrDeviceType = "cdaudio";
    if (dwReturn = mciSendCommand (0, MCI_OPEN, MCI_OPEN_TYPE | MCI_OPEN_SHAREABLE, (DWORD) (LPVOID) & mciOpenParms)) {
        Con_Printf ("CDAudio_Init: MCI_OPEN failed (%i)\n", dwReturn);
        return -1;
    }
    wDeviceID = mciOpenParms.wDeviceID;

    // Set the time format to track/minute/second/frame (TMSF).
    mciSetParms.dwTimeFormat = MCI_FORMAT_TMSF;
    if (dwReturn = mciSendCommand (wDeviceID, MCI_SET, MCI_SET_TIME_FORMAT, (DWORD) (LPVOID) & mciSetParms)) {
        Con_Printf ("MCI_SET_TIME_FORMAT failed (%i)\n", dwReturn);
        mciSendCommand (wDeviceID, MCI_CLOSE, 0, (DWORD) NULL);

        return -1;
    }

    for (n = 0; n < 100; n++)
        remap[n] = n;
    initialized = true;
    enabled = true;

    if (CDAudio_GetAudioDiskInfo ()) {
        // Con_Printf("CDAudio_Init: No CD in player.\n");
        cdValid = false;
    }

    Cmd_AddCommand ("cd", CD_f);

    // Con_Printf("CD Audio Initialized\n");

    return 0;
}

void CDAudio_Shutdown (void) {
    if (!initialized)
        return;

    CDAudio_Stop ();
    if (mciSendCommand (wDeviceID, MCI_CLOSE, MCI_WAIT, (DWORD) NULL))
        Con_DPrintf ("CDAudio_Shutdown: MCI_CLOSE failed\n");
}
