{$INCLUDE switches}
unit Directories;

interface

var
  HomeDir, DataDir: string;

function LocalizedFilePath(path: string): string;

implementation

uses
  ShlObj, Windows, SysUtils;

function GetSpecialDirectory(const CSIDL: integer): string;
var
  RecPath: PChar;
begin
  RecPath := StrAlloc(MAX_PATH);
  try
    FillChar(RecPath^, MAX_PATH, 0);
    if SHGetSpecialFolderPath(0, RecPath, CSIDL, false) then
      result := RecPath
    else
      result := '';
  finally
    StrDispose(RecPath);
  end
end;

function DirectoryExists(path: string): boolean;
var
  f: TSearchRec;
begin
  result := FindFirst(path, faDirectory, f) = 0;
end;

function LocalizedFilePath(path: string): string;
begin
  result := DataDir + 'Localization\' + path;
  if not FileExists(result) then
    result := HomeDir + path
end;

var
  AppDataDir: string;
  src, dst: TSearchRec;

initialization

HomeDir := ExtractFilePath(ParamStr(0));

AppDataDir := GetSpecialDirectory(CSIDL_APPDATA);
if AppDataDir = '' then
  DataDir := HomeDir
else
begin
  if not DirectoryExists(AppDataDir + '\C-evo') then
    CreateDir(AppDataDir + '\C-evo');
  DataDir := AppDataDir + '\C-evo\';
end;
if not DirectoryExists(DataDir + 'Saved') then
  CreateDir(DataDir + 'Saved');
if not DirectoryExists(DataDir + 'Maps') then
  CreateDir(DataDir + 'Maps');

// copy appdata if not done yet
if FindFirst(HomeDir + 'AppData\Saved\*.cevo', $21, src) = 0 then
  repeat
    if (FindFirst(DataDir + 'Saved\' + src.Name, $21, dst) <> 0) or
      (dst.Time < src.Time) then
      CopyFile(PChar(HomeDir + 'AppData\Saved\' + src.Name),
        PChar(DataDir + 'Saved\' + src.Name), false);
  until FindNext(src) <> 0;

end.