/*

uninstall.nsh

Uninstall 

*/

Var FileAssociation

# ----------------------------------

Section "un.LyX" un.SecUnProgramFiles

  SectionIn RO
  # LaTeX class files that were installed together with LyX
  # will not be uninstalled because other LyX versions will
  # need them and these few files don't harm to stay in LaTeX 
    
  # Binaries
  RMDir /r "$INSTDIR\bin"

  # Resources
  RMDir /r "$INSTDIR\Resources"
  
  # Python
  RMDir /r "$INSTDIR\python"
  ReadRegStr $0 SHCTX "Software\Classes\Python.File" "OnlyWithLyX" # test if it was registered by this LyX version
  ${if} $0 == "Yes${APP_SERIES_KEY}"
   DeleteRegKey SHCTX "Software\Classes\Python.File"
  ${endif}
  
  # ImageMagick
  RMDir /r "$INSTDIR\imagemagick"
  
  # Components of Ghostscript
  RMDir /r "$INSTDIR\ghostscript"
  
  # delete start menu folder
  ReadRegStr $0 SHCTX "${APP_UNINST_KEY}" "StartMenu"
  RMDir /r "$0"
  # delete desktop icon
  Delete "$DESKTOP\${APP_NAME} ${APP_SERIES_NAME}.lnk"
  
  # remove file extension .lyx
  ReadRegStr $0 SHCTX "${APP_DIR_REGKEY}" "OnlyWithLyX" # test if they were registered by this LyX version
  ${if} $0 == "Yes${APP_SERIES_KEY}"
   ReadRegStr $R0 SHCTX "Software\Classes\${APP_EXT}" ""
   ${if} $R0 == "${APP_REGNAME_DOC}"
    #DeleteRegKey SHCTX "Software\Classes\${APP_EXT}13"
    #DeleteRegKey SHCTX "Software\Classes\${APP_EXT}14"
    #DeleteRegKey SHCTX "Software\Classes\${APP_EXT}15"
    #DeleteRegKey SHCTX "Software\Classes\${APP_EXT}16"
    #DeleteRegKey SHCTX "Software\Classes\${APP_EXT}20"
    #DeleteRegKey SHCTX "Software\Classes\${APP_EXT}21"
    DeleteRegKey SHCTX "Software\Classes\${APP_EXT}"
    #DeleteRegKey SHCTX "Software\Classes\${APP_REGNAME_DOC}"
   ${endif}
  ${endif}
  ${if} $MultiUser.Privileges == "Admin"
   DeleteRegKey HKCR "${APP_NAME}.Document"
  ${endif}

  # Uninstaller itself
  Delete "$INSTDIR\${SETUP_UNINSTALLER}"
  
  # Application folder
  SetOutPath "$TEMP"
  RMDir /r "$INSTDIR"
  
  # Registry keys and values
  DeleteRegValue SHCTX "subkey" "key_name"
  DeleteRegKey SHCTX "${APP_REGKEY_SETUP}"
  DeleteRegKey SHCTX "${APP_REGKEY}"
  DeleteRegKey SHCTX "${APP_UNINST_KEY}"
  DeleteRegKey HKCR "Applications\${BIN_LYX}"
  DeleteRegValue HKCR "${APP_NAME}.Document\Shell\open\command" ""
  DeleteRegValue HKCR "${APP_NAME}.Document\DefaultIcon" ""
  ReadRegStr $0 SHCTX ${APP_REGFOLDER} "latestVersion"
  ${If} $0 == ${APP_SERIES_KEY}
    DeleteRegValue SHCTX ${APP_REGFOLDER} "latestVersion"
    StrCpy $0 0
    StrCpy $R0 ""
    ${Do}
      StrCpy $R1 $R0
      EnumRegKey $R0 SHCTX ${APP_REGFOLDER} $0
      IntOp $0 $0 + 1
    ${LoopUntil} $R0 == ""
    ${If} $R1 != ""
      WriteRegStr SHCTX ${APP_REGFOLDER} "latestVersion" $R1
    ${EndIf}
  ${EndIf}
  DeleteRegKey /ifempty SHCTX ${APP_REGFOLDER}
  
  # File associations
  ReadRegStr $FileAssociation SHELL_CONTEXT "Software\Classes\${APP_EXT}" ""
  
  ${If} $FileAssociation == "${APP_REGNAME_DOC}"
     DeleteRegKey SHELL_CONTEXT "Software\Classes\${APP_EXT}"
  ${EndIf}
  
  # clean other registry entries
  DeleteRegKey SHCTX "SOFTWARE\Microsoft\Windows\CurrentVersion\App Paths\${APP_NAME}.exe"
  DeleteRegKey SHCTX "SOFTWARE\${APP_REGKEY}"
  
  # delete info that programs were installed together with LyX
  DeleteRegValue SHCTX "SOFTWARE\MiKTeX.org\MiKTeX" "OnlyWithLyX"
  
  # for texindy the path to the perl.exe must unfortunately be in Windows' PATH variable
  # so we have to remove it now
  ${if} $MultiUser.Privileges != "Admin"
  ${andif} $MultiUser.Privileges != "Power"
   # call the non-admin version
   ${un.EnvVarUpdate} $0 "PATH" "R" "HKCU" "$INSTDIR\Perl\bin"
  ${else}
   ${un.EnvVarUpdate} $0 "PATH" "R" "HKLM" "$INSTDIR\Perl\bin"
  ${endif}

SectionEnd

#---------------------------------
# user preferences
Section /o "un.$(UnLyXPreferencesTitle)" un.SecUnPreferences

 # remove LyX's config files
 StrCpy $AppSubfolder ${APP_DIR_USERDATA}
 Call un.DelAppPathSub # function from LyXUtils.nsh
 # remove registry settings
 DeleteRegKey HKCU "Software\${APP_NAME}\${APP_NAME}${APP_SERIES_NAME}"
  
SectionEnd

#---------------------------------
# MiKTeX
Section "un.MiKTeX" un.SecUnMiKTeX

 ${if} $LaTeXInstalled == "MiKTeX" # only uninstall MiKTeX when it was installed together with LyX 
  ReadRegStr $1 SHCTX "Software\Microsoft\Windows\CurrentVersion\Uninstall\MiKTeX ${MiKTeXDeliveredVersion}" "UninstallString"
  ExecWait $1 # run MiKTeX's uninstaller
 ${endif}

SectionEnd

#---------------------------------
# Section descriptions
!insertmacro MUI_UNFUNCTION_DESCRIPTION_BEGIN
!insertmacro MUI_DESCRIPTION_TEXT ${un.SecUnMiKTeX} "$(SecUnMiKTeXDescription)"
!insertmacro MUI_DESCRIPTION_TEXT ${un.SecUnPreferences} "$(SecUnPreferencesDescription)"
!insertmacro MUI_DESCRIPTION_TEXT ${un.SecUnProgramFiles} "$(SecUnProgramFilesDescription)"
!insertmacro MUI_UNFUNCTION_DESCRIPTION_END

#Section "un.User Preferences and Custom Files" un.SecUserFiles
#
#  SetShellVarContext current
#  RMDir /r "$APPDATA\${APP_DIR_USERDATA}"
#  
#SectionEnd