(*

 * Hedgewars, a free turn based strategy game

 * Copyright (c) 2004-2012 Andrey Korotaev <unC0Rr@gmail.com>

 *

 * 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; version 2 of the License

 *

 * 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

 *)

procedure GciEasterEgg;

begin

    WriteLn(stdout, '                                                                ');

    WriteLn(stdout, '      /\\\\\\\\\\\\        /\\\\\\\\\  /\\\\\\\\\\\             ');

    WriteLn(stdout, '     /\\\//////////      /\\\////////  \/////\\\///             ');

    WriteLn(stdout, '     /\\\               /\\\/               \/\\\               ');

    WriteLn(stdout, '     \/\\\    /\\\\\\\  /\\\                 \/\\\              ');

    WriteLn(stdout, '      \/\\\   \/////\\\ \/\\\                 \/\\\             ');

    WriteLn(stdout, '       \/\\\       \/\\\ \//\\\                \/\\\            ');

    WriteLn(stdout, '        \/\\\       \/\\\  \///\\\              \/\\\           ');

    WriteLn(stdout, '         \/\\\\\\\\\\\\\/     \////\\\\\\\\\  /\\\\\\\\\\\      ');

    WriteLn(stdout, '          \/////////////          \/////////  \///////////      ');

    WriteLn(stdout, '                                                                ');

    WriteLn(stdout, ' Command Line Parser Implementation by a Google Code-In Student ');

    WriteLn(stdout, '             ASCII Art easter egg idea by @sheepluva            ');

    WriteLn(stdout, '                                                                ');

end;

procedure DisplayUsage;

begin

    WriteLn(stdout, 'Usage: hwengine <path to replay file> [options]');

    WriteLn(stdout, '');

    WriteLn(stdout, 'where [options] can be any of the following:');

    WriteLn(stdout, ' --prefix [path to folder]');

    WriteLn(stdout, ' --user-prefix [path to folder]');

    WriteLn(stdout, ' --locale [name of language file]');

    WriteLn(stdout, ' --nick [string]');

    WriteLn(stdout, ' --width [screen width in pixels]');

    WriteLn(stdout, ' --height [screen height in pixels]');

    WriteLn(stdout, ' --volume [sound level]');

    WriteLn(stdout, ' --frame-interval [milliseconds]');

    Writeln(stdout, ' --stereo [value]');

    WriteLn(stdout, ' --raw-quality [flags]');

    WriteLn(stdout, ' --low-quality');

    WriteLn(stdout, ' --nomusic');

    WriteLn(stdout, ' --nosound');

    WriteLn(stdout, ' --fullscreen');

    WriteLn(stdout, ' --showfps');

    WriteLn(stdout, ' --altdmg');

    WriteLn(stdout, ' --stats-only');

    WriteLn(stdout, ' --help');

    WriteLn(stdout, '');

    WriteLn(stdout, 'For more detailed help and examples go to:');

    WriteLn(stdout, 'http://code.google.com/p/hedgewars/wiki/CommandLineOptions');

    GameType:= gmtSyntax;

end;

procedure setDepth(var paramIndex: LongInt);

begin

    WriteLn(stdout, 'WARNING: --depth is a deprecated command, which could be removed in a future version!');

    WriteLn(stdout, '         This option no longer does anything, please consider removing it');

    WriteLn(stdout, '');

   inc(ParamIndex);

end;

procedure statsOnlyGame;

begin

    cOnlyStats:= true;

    cReducedQuality:= $FFFFFFFF xor rqLowRes;

    SetSound(false);

    SetMusic(false);

    SetVolume(0);

end;

procedure setIpcPort(port: LongInt; var wrongParameter:Boolean);

begin

    if isInternal then

        ipcPort := port

    else

        begin

        WriteLn(stderr, 'ERROR: use of --port is not allowed');

        wrongParameter := true;

        end

end;

function parseNick(nick: String): String;

begin

    if isInternal then

        parseNick:= DecodeBase64(nick)

    else

        parseNick:= nick;

end;

procedure setStereoMode(tmp: LongInt);

begin

    GrayScale:= false;

{$IFDEF USE_S3D_RENDERING}

    if (tmp > 9) and (tmp < 16) then

        begin

        // set the gray anaglyph rendering

        GrayScale:= true;

        cStereoMode:= TStereoMode(max(0, min(ord(high(TStereoMode)), tmp-9)))

        end

    else if tmp <= 9 then

        // set the fullcolor anaglyph

        cStereoMode:= TStereoMode(max(0, min(ord(high(TStereoMode)), tmp)))

    else

        // any other mode

        cStereoMode:= TStereoMode(max(0, min(ord(high(TStereoMode)), tmp-6)));

{$ELSE}

    cStereoMode:= smNone;

{$ENDIF}

end;

procedure startVideoRecording(var paramIndex: LongInt);

begin

{$IFDEF USE_VIDEO_RECORDING}

    GameType:= gmtRecord;

    inc(paramIndex);

    cVideoFramerateNum:= StrToInt(ParamStr(paramIndex)); inc(paramIndex);

    cVideoFramerateDen:= StrToInt(ParamStr(paramIndex)); inc(paramIndex);

    RecPrefix:= ParamStr(paramIndex);                    inc(paramIndex);

    cAVFormat:= ParamStr(paramIndex);                    inc(paramIndex);

    cVideoCodec:= ParamStr(paramIndex);                  inc(paramIndex);

    cVideoQuality:= StrToInt(ParamStr(paramIndex));      inc(paramIndex);

    cAudioCodec:= ParamStr(paramIndex);                  inc(paramIndex);

{$ENDIF}

end;

function getLongIntParameter(str:String; var paramIndex:LongInt; var wrongParameter:Boolean): LongInt;

var tmpInt, c: LongInt;

begin

    inc(paramIndex);

    val(str, tmpInt, c);

    wrongParameter:= c <> 0;

    if wrongParameter then

        WriteLn(stderr, 'ERROR: '+ParamStr(paramIndex-1)+' expects a number, you passed "'+str+'"');

    getLongIntParameter:= tmpInt;

end;

function getStringParameter(str:String; var paramIndex:LongInt; var wrongParameter:Boolean): String;

begin

    inc(paramIndex);

    wrongParameter:= (str='') or (Copy(str,1,2) = '--');

    if wrongParameter then

         WriteLn(stderr, 'ERROR: '+ParamStr(paramIndex-1)+' expects a string, you passed "'+str+'"');

    getStringParameter:= str;

end;

procedure parseClassicParameter(cmdArray: array of String; size:LongInt; var paramIndex:LongInt); forward;

function parseParameter(cmd:String; arg:String; var paramIndex:LongInt): Boolean;

const videoArray: array [1..3] of String = ('--width','--height','--depth');

      audioArray: array [1..3] of String = ('--volume','--nomusic','--nosound');

      otherArray: array [1..3] of String = ('--locale','--fullscreen','--showfps');

      mediaArray: array [1..8] of String = ('--width','--height','--depth','--volume','--nomusic','--nosound','--locale','--fullscreen');

      allArray: array [1..12] of String = ('--width','--height','--depth','--volume','--nomusic','--nosound','--locale','--fullscreen','--showfps','--altdmg','--frame-interval','--low-quality');

      reallyAll: array[0..28] of shortstring = (

                '--prefix', '--user-prefix', '--locale', '--width', '--height', '--frame-interval', '--volume','--nomusic', '--nosound',

                '--fullscreen', '--showfps', '--altdmg', '--low-quality', '--raw-quality', '--stereo', '--nick',

  {deprecated}  '--depth', '--set-video', '--set-audio', '--set-other', '--set-multimedia', '--set-everything',

  {internal}    '--internal', '--port', '--recorder', '--landpreview',

  {misc}        '--stats-only', '--gci', '--help');

var cmdIndex: byte;

begin

    parseParameter:= false;

    cmdIndex:= 0;

    //NOTE: Any update to the list of parameters must be reflected in the case statement below, the reallyAll array above,

    //      the the DisplayUsage() procedure, the HWForm::getDemoArguments() function, and the online wiki

    while (cmdIndex <= High(reallyAll)) and (cmd <> reallyAll[cmdIndex]) do inc(cmdIndex);

    case cmdIndex of

        {--prefix}          0 : PathPrefix     := getStringParameter (arg, paramIndex, parseParameter);

        {--user-prefix}     1 : UserPathPrefix := getStringParameter (arg, paramIndex, parseParameter);

        {--locale}          2 : cLocaleFName   := getStringParameter (arg, paramIndex, parseParameter);

        {--width}           3 : cScreenWidth   := getLongIntParameter(arg, paramIndex, parseParameter);

        {--height}          4 : cScreenHeight  := getLongIntParameter(arg, paramIndex, parseParameter);

        {--frame-interval}  5 : cTimerInterval := getLongIntParameter(arg, paramIndex, parseParameter);

        {--volume}          6 : SetVolume       ( getLongIntParameter(arg, paramIndex, parseParameter) );

        {--nomusic}         7 : SetMusic        ( false );

        {--nosound}         8 : SetSound        ( false );

        {--fullscreen}      9 : cFullScreen    := true;

        {--showfps}        10 : cShowFPS       := true;

        {--altdmg}         11 : cAltDamage     := true;

        {--low-quality}    12 : cReducedQuality:= $FFFFFFFF xor rqLowRes;

        {--raw-quality}    13 : cReducedQuality:= getLongIntParameter(arg, paramIndex, parseParameter);

        {--stereo}         14 : setStereoMode   ( getLongIntParameter(arg, paramIndex, parseParameter) );

        {--nick}           15 : UserNick       := parseNick( getStringParameter(arg, paramIndex, parseParameter) );

        {deprecated options}

        {--depth}          16 : setDepth(paramIndex);

        {--set-video}      17 : parseClassicParameter(videoArray,3,paramIndex);

        {--set-audio}      18 : parseClassicParameter(audioArray,3,paramIndex);

        {--set-other}      19 : parseClassicParameter(otherArray,3,paramIndex);

        {--set-multimedia} 20 : parseClassicParameter(mediaArray,8,paramIndex);

        {--set-everything} 21 : parseClassicParameter(allArray,12,paramIndex);

        {"internal" options}

        {--internal}       22 : {note it, but do nothing};

        {--port}            23 : setIpcPort( getLongIntParameter(arg, paramIndex, parseParameter), parseParameter );

        {--recorder}       24 : startVideoRecording(paramIndex);

        {--landpreview}    25 : GameType := gmtLandPreview;

        {anything else}

        {--stats-only}     26 : statsOnlyGame();

        {--gci}            27 : GciEasterEgg();

        {--help}           28 : DisplayUsage();

    else

        begin

        //Asusme the first "non parameter" is the replay file, anything else is invalid

        if (recordFileName = '') and (Copy(cmd,1,2) <> '--') then

            recordFileName := cmd

        else

            begin

            WriteLn(stderr, '"'+cmd+'" is not a valid option');

            parseParameter:= true;

            end;

        end;

    end;

end;

procedure parseClassicParameter(cmdArray: array of String; size:LongInt; var paramIndex:LongInt);

var index, tmpInt: LongInt;

    isBool, isValid: Boolean;

    cmd, arg, newSyntax: String;

begin

    WriteLn(stdout, 'WARNING: you are using a deprecated command, which could be removed in a future version!');

    WriteLn(stdout, '         Consider updating to the latest syntax, which is much more flexible!');

    WriteLn(stdout, '         Run `hwegine --help` to learn it!');

    WriteLn(stdout, '');

    index:= 0;

    tmpInt:= 1;

    while (index < size) do

        begin

        inc(paramIndex);

        cmd:= cmdArray[index];

        arg:= ParamStr(paramIndex);

        isValid:= (cmd<>'--depth');

        // check if the parameter is a boolean one

        isBool:= (cmd = '--nomusic') or (cmd = '--nosound') or (cmd = '--fullscreen') or (cmd = '--showfps') or (cmd = '--altdmg');

        if isBool and (arg='0') then

            isValid:= false;

        if (cmd='--nomusic') or (cmd='--nosound') then

            isValid:= not isValid;

        if isValid then

            begin

            parseParameter(cmd, arg, tmpInt);

            newSyntax:= newSyntax + cmd + ' ';

            if not isBool then

                newSyntax:= newSyntax + arg + ' ';

            end;

        inc(index);

        end;

    WriteLn(stdout, 'Attempted to automatically convert to the new syntax:');

    WriteLn(stdout, newSyntax);

    WriteLn(stdout, '');

end;

procedure parseCommandLine{$IFDEF HWLIBRARY}(argc: LongInt; argv: PPChar){$ENDIF};

var paramIndex: LongInt;

    paramTotal: LongInt;

    wrongParameter: boolean;

begin

    paramIndex:= 1;

    paramTotal:={$IFDEF HWLIBRARY}argc{$ELSE}ParamCount{$ENDIF};

    wrongParameter:= false;

    while (paramIndex <= paramTotal) do

        begin

        {$IFDEF HWLIBRARY}

        wrongParameter:= parseParameter( argv[paramIndex], argv[paramIndex+1], paramIndex);

        {$ELSE}

        wrongParameter:= parseParameter( ParamStr(paramIndex), ParamStr(paramIndex+1), paramIndex);

        {$ENDIF}

        inc(paramIndex);

        end;

    if wrongParameter = true then

        GameType:= gmtSyntax;

end;

{$IFNDEF HWLIBRARY}

procedure GetParams;

//var tmpInt: LongInt;

begin

    (*

    tmpInt:=0;

    while (tmpInt <= ParamCount) do

        begin

        WriteLn(stdout, inttostr(tmpInt) + ': ' + ParamStr(tmpInt));

        inc(tmpInt);

        end;

    *)

    isInternal:= (ParamStr(1) = '--internal');

    UserPathPrefix := '.';

    PathPrefix     := cDefaultPathPrefix;

    recordFileName := '';

    parseCommandLine();

    if (isInternal) and (ParamCount<=1) then

        begin

        WriteLn(stderr, '--internal should not be manually used');

        GameType := gmtSyntax;

        end;

    if (not isInternal) and (recordFileName = '') then

        begin

        WriteLn(stderr, 'You must specify a replay file');

        GameType := gmtSyntax;

        end

    else if (recordFileName <> '') then

        WriteLn(stdout, 'Attempting to play demo file "' + recordFilename + '"');

    if (GameType = gmtSyntax) then

        WriteLn(stderr, 'Please use --help to see possible arguments and their usage');

    (*

    WriteLn(stdout,'PathPrefix:     ' + PathPrefix);

    WriteLn(stdout,'UserPathPrefix: ' + UserPathPrefix);

    *)

end;

{$ENDIF}