program cdejecter;
{$mode delphi}
{$codepage UTF8}
uses Interfaces, {$IFDEF UNIX}{$IFDEF UseCThreads}cthreads,{$ENDIF}{$ENDIF} Classes, SysUtils, CustApp, ANBFormatString,
     dynlibs, LazUTF8Classes, cde_dir, cde_lang, cde_types, ParamsMngr, cde_kernel, LazUTF8;
type
  { TCDEjecter }
  TCDEjecter = class(TCustomApplication)
  protected
   procedure DoRun; override;
  public
   constructor Create(TheOwner: TComponent); OVERRIDE;
   destructor Destroy; OVERRIDE;
   procedure WriteHelp; VIRTUAL;
   procedure ListDiscs (const Extendend: Boolean);
   procedure GetDriveState (const ADisc: String);
   function FormatDiscInfo (const AString: String; const AInfo: TDiscInfo): String;
   procedure ShowDiscInfo (const ADisc: String);
   procedure EjectDisc (const ADisc: String);
   procedure CloseDisc (const ADisc: String);
   procedure BuildTitle;
  end;
{ TCDEjecter }
procedure TCDEjecter.DoRun;
var isHandled: Boolean;
begin
BuildTitle;
isHandled:= False;
if HasParam('list') then
 begin
 isHandled:= True;
 ListDiscs(False);
 end;
if HasParam('listex') then
 begin
 isHandled:= True;
 ListDiscs(True);
 end;
if HasParam('state') then
 begin
 isHandled:= True;
 GetDriveState(GetParamValue('state'));
 end;
if HasParam('info') then
 begin
 isHandled:= True;
 ShowDiscInfo(GetParamValue('info'));
 end;
if HasParam('eject') then
 begin
 isHandled:= True;
 EjectDisc(GetParamValue('eject'));
 end;
if HasParam('close') then
 begin
 isHandled:= True;
 CloseDisc(GetParamValue('close'));
 end;
if not isHandled then
 WriteHelp;
// stop program loop
Terminate;
end;
constructor TCDEjecter.Create(TheOwner: TComponent);
begin
inherited Create (TheOwner);
StopOnException:= True;
end;
destructor TCDEjecter.Destroy;
begin
inherited Destroy;
end;
procedure TCDEjecter.WriteHelp;
begin
writeln(FormatStr(GetLocalizedString(cde_messages_help), ['$newline$'], [#13#10]));
end;
procedure TCDEjecter.ListDiscs (const Extendend: Boolean);
var DLL: TLibHandle;
    GetCDDiscs: function: PChar;
    GetVolumeInfo: function (const ADisc: WideChar): TDiscInfo;
    SL: TStringListUTF8;
    Msg: String;
    Indx: Integer;
    DInfo: TDiscInfo;
begin
Msg:= '';
SL:= TStringListUTF8.Create;
DLL:= SafeLoadLibrary(CDELib);
GetCDDiscs:= GetProcAddress(DLL, 'GetCDDiscs');
GetVolumeInfo:= GetProcAddress(DLL, 'GetVolumeInfo');
SL.Delimiter:= ';';
SL.DelimitedText:= GetCDDiscs;
if SL.Count > 0 then
 for Indx:= 0 to SL.Count - 1 do
  begin
  DInfo:= GetVolumeInfo(WideChar(SL[Indx][1]));
  if not (Trim(Msg) = '') then
   Msg:= Msg + #13#10;
  Msg:= Msg + SL[Indx];
  if Extendend then
   if DInfo.diHasInfo then
    Msg:= Msg + ' - ' + DInfo.diVolumeName
    else
    Msg:= Msg + ' - ' + GetLocalizedString(cde_messages_nodiscorempty);
  end;
FreeLibrary(DLL);
SL.Free;
WriteLn(GetLocalizedString(cde_messages_discslist));
WriteLn(Msg);
end;
procedure TCDEjecter.GetDriveState (const ADisc: String);
var DLL: TLibHandle;
    GetDiscState: function (const ADisc: WideChar): TDiscState;
    DS: TDiscState;
begin
DLL:= SafeLoadLibrary(CDELib);
GetDiscState:= GetProcAddress(DLL, 'GetDiscState');
DS:= GetDiscState(WideChar(ADisc[1]));
FreeLibrary(DLL);
case DS of
 dsNormal: WriteLn('normal');
 dsEmpty: WriteLn('empty');
 dsUnFormatted: WriteLn('unformatted');
 dsNIL: WriteLn('nil');
 end;
end;
function TCDEjecter.FormatDiscInfo (const AString: String; const AInfo: TDiscInfo): String;
begin
Result:= FormatStr(AString,
                            ['$newline$',
                             '$letter$',
                             '$volumename$',
                             '$filesystem$',
                             '$serial$'
                            ],
                            [#13#10,
                             AInfo.diDrive,
                             AInfo.diVolumeName,
                             AInfo.diFileSystem,
                             IntToStr(AInfo.diSerial)
                            ]);
end;
procedure TCDEjecter.ShowDiscInfo (const ADisc: String);
var DLL: TLibHandle;
    GetVolumeInfo: function (const ADisc: WideChar): TDiscInfo;
    Msg: String;
    DInfo: TDiscInfo;
begin
DLL:= SafeLoadLibrary(CDELib);
GetVolumeInfo:= GetProcAddress(DLL, 'GetVolumeInfo');
DInfo:= GetVolumeInfo(WideChar(ADisc[1]));
FreeLibrary(DLL);
if DInfo.diHasInfo then
 Msg:= FormatDiscInfo(GetLocalizedString(cde_messages_discdesc), DInfo)
 else
 Msg:= FormatDiscInfo(GetLocalizedString(cde_messages_discdesconerror), DInfo);
WriteLn(GetLocalizedString(cde_messages_discinfo));
WriteLn(Msg);
end;
procedure TCDEjecter.EjectDisc (const ADisc: String);
var DLL: TLibHandle;
    EjectCD: function (const ADisc: WideChar): Boolean;
    GetVolumeInfo: function (const ADisc: WideChar): TDiscInfo;
    Msg: String;
    DInfo: TDiscInfo;
begin
WriteLn(GetLocalizedString(cde_messages_ejecttitle));
if Trim(ADisc) = '' then
 WriteLn(GetLocalizedString(cde_messages_errornoparameters))
 else
 begin
 DLL:= SafeLoadLibrary(CDELib);
 GetVolumeInfo:= GetProcAddress(DLL, 'GetVolumeInfo');
 EjectCD:= GetProcAddress(DLL, 'EjectCD');
 DInfo.diDrive:= ADisc[1];
 DInfo.diVolumeName:= ADisc;
 DInfo:= GetVolumeInfo(WideChar(ADisc[1]));
 if EjectCD (WideChar(ADisc[1])) then
  Msg:= FormatDiscInfo(GetLocalizedString(cde_messages_ejectsuccess), DInfo)
  else
  Msg:= FormatDiscInfo(GetLocalizedString(cde_messages_ejecterror), DInfo);
 FreeLibrary(DLL);
 WriteLn(Msg);
 end;
end;
procedure TCDEjecter.CloseDisc (const ADisc: String);
var DLL: TLibHandle;
    CloseCD: function (const ADisc: WideChar): Boolean;
    Msg: String;
    DInfo: TDiscInfo;
begin
WriteLn(GetLocalizedString(cde_messages_closetitle));
DLL:= SafeLoadLibrary(CDELib);
CloseCD:= GetProcAddress(DLL, 'CloseCD');
DInfo.diDrive:= ADisc[1];
if CloseCD (WideChar(ADisc[1])) then
 Msg:= FormatDiscInfo(GetLocalizedString(cde_messages_closesuccess), DInfo)
 else
 Msg:= FormatDiscInfo(GetLocalizedString(cde_messages_closeerror), DInfo);
FreeLibrary(DLL);
WriteLn(Msg);
end;
procedure TCDEjecter.BuildTitle;
 procedure WriteWord (const AWord: String; const hMaxLength, AMaxLength: Byte; const ASymbol: Char);
 var S1, S2: String;
     Indx, hLen: Byte;
 begin
 hLen:= UTF8Length(AWord) div 2;
 S1:= '';
 for Indx:= 1 to (hMaxLength - hLen) - 1 do
  S1:= S1 + ASymbol;
 S1:= S1 + ' ';
 S2:= ' ';
 for Indx:= (UTF8Length(S1) + UTF8Length(AWord)) + 2 to AMaxLength do
  S2:= S2 + ASymbol;
 WriteLn(S1 + AWord + S2);
 end;
var StrT, StrV, StrC, StrABL: String;
    MaxLength, hMaxLength, Indx: Byte;
const ASymbol: Char = '#';
begin
StrT:= 'CD Ejecter';
StrV:= GetLocalizedString(cde_version) + ' ' + GetCDEVerStr('cde');
StrC:= FormatStr(GetLocalizedString(cde_copyrights), ['$DEVYEARS$'], ['2011 - 2017']);
MaxLength:= UTF8Length(StrT);
if UTF8Length(StrV) > MaxLength then
 MaxLength:= UTF8Length(StrV);
if UTF8Length(StrC) > MaxLength then
 MaxLength:= UTF8Length(StrC);
MaxLength:= MaxLength + 8;
hMaxLength:= MaxLength div 2;
StrABL:= '';
for Indx:= 1 to MaxLength do
 StrABL:= StrABL + ASymbol;
WriteLn(StrABL);
WriteWord(StrT, hMaxLength, MaxLength, ASymbol);
WriteWord(StrV, hMaxLength, MaxLength, ASymbol);
WriteWord(StrC, hMaxLength, MaxLength, ASymbol);
WriteLn(StrABL);
WriteLn('');
end;
var Application: TCDEjecter;
{$R *.res}
begin
Application:= TCDEjecter.Create(Nil);
Application.Title:= 'CD Ejecter';
Application.Run;
Application.Free;
end.