#!/bin/bash
# © 2023-2024 Ivy (prpl.wtf)

# Learn more @ blueprint.zip
# Source code available on github.com/blueprintframework/framework

# This should allow Blueprint to run in Docker. Please note that changing the $FOLDER variable after running
# the Blueprint installation script will not change anything in any files besides blueprint.sh.
  FOLDER=$(realpath "$(dirname "$0")")

# This stores the webserver ownership user which Blueprint uses when applying webserver permissions.
  OWNERSHIP="www-data:www-data" #;

# This stores options for permissions related to running install scripts the webserver user.
  WEBUSER="www-data" #;
  USERSHELL="/bin/bash" #;

# Defines the version Blueprint will display as the active one.
  VERSION="beta-F248-1"

# Default GitHub repository to use when upgrading Blueprint.
  REPOSITORY="BlueprintFramework/framework"



# Check if the script is being sourced - and if so - load bash autocompletion.
if [[ "${BASH_SOURCE[0]}" != "${0}" ]]; then
  _blueprint_completions() {
    local cur cmd opts
    COMPREPLY=()
    cur="${COMP_WORDS[COMP_CWORD]}"
    cmd="${COMP_WORDS[1]}"

    case "${cmd}" in
      -install|-add|-i) opts="$(find "$FOLDER"/*.blueprint | sed -e "s|^$FOLDER/||g" -e "s|.blueprint$||g")" ;;
      -remove|-r) opts="$(sed "s|,||g" "$FOLDER/.blueprint/extensions/blueprint/private/db/installed_extensions")" ;;
      -export) opts="expose" ;;
      -debug) opts="100 200" ;;
      -upgrade) opts="remote" ;;
      
      *) opts="-install -add -remove -init -build -export -wipe -version -help -info -debug -upgrade -rerun-install" ;;
    esac

    if [[ ${cur} == * ]]; then
      # shellcheck disable=SC2207
      COMPREPLY=( $(compgen -W "${opts}" -- "${cur}") )
      return 0
    fi
  }
  complete -F _blueprint_completions blueprint
  return 0
fi

# Check for panels that are using Docker, which should have better support in the future.
if [[ -f "/.dockerenv" ]]; then
  DOCKER="y"
  FOLDER="/app"
else
  DOCKER="n"
fi

# This has caused a bunch of errors but is just here to make sure people actually upload the
# "blueprint" folder onto their panel when installing Blueprint. Pick your poison.
if [[ -d "$FOLDER/blueprint" ]]; then mv "$FOLDER/blueprint" "$FOLDER/.blueprint"; fi

if [[ $VERSION != "" ]]; then
  # This function makes sure some placeholders get replaced with the current Blueprint version.
  if [[ ! -f "$FOLDER/.blueprint/extensions/blueprint/private/db/version" ]]; then
    sed -E -i "s*::v*$VERSION*g" "$FOLDER/app/BlueprintFramework/Services/PlaceholderService/BlueprintPlaceholderService.php"
    sed -E -i "s*::v*$VERSION*g" "$FOLDER/.blueprint/extensions/blueprint/public/index.html"
    touch "$FOLDER/.blueprint/extensions/blueprint/private/db/version"
  fi
fi

# Write environment variables.
export BLUEPRINT__FOLDER=$FOLDER
export BLUEPRINT__VERSION=$VERSION
export BLUEPRINT__DEBUG="$FOLDER"/.blueprint/extensions/blueprint/private/debug/logs.txt
export NODE_OPTIONS=--openssl-legacy-provider
# Write internal variables.
__BuildDir=".blueprint/extensions/blueprint/private/build"

# Automatically navigate to the Pterodactyl directory when running the core.
cd "$FOLDER" || return

# Import libraries.
source scripts/libraries/parse_yaml.sh || missinglibs+="[parse_yaml]"
source scripts/libraries/grabenv.sh    || missinglibs+="[grabenv]"
source scripts/libraries/logFormat.sh  || missinglibs+="[logFormat]"
source scripts/libraries/misc.sh       || missinglibs+="[misc]"


# -config
# usage: "cITEM=VALUE bash blueprint.sh -config"
if [[ "$1" == "-config" ]]; then

  # cTELEMETRY_ID
  # Update the telemetry id.
  if [[ "$cTELEMETRY_ID" != "" ]]; then
    echo "$cTELEMETRY_ID" > .blueprint/extensions/blueprint/private/db/telemetry_id
  fi

  # cDEVELOPER
  # Enable/Disable developer mode.
  if [[ "$cDEVELOPER" != "" ]]; then
    if [[ "$cDEVELOPER" == "true" ]]; then
      dbAdd "blueprint.developerEnabled"
    else
      dbRemove "blueprint.developerEnabled"
    fi
  fi

  echo .
  exit 0
fi

cdhalt() { PRINT FATAL "Attempted navigation into nonexistent directory, halting process."; exit 1; }


depend() {
  # Check for compatible node versions
  nodeVer=$(node -v)
  if [[ $nodeVer != "v17."* ]] \
  && [[ $nodeVer != "v18."* ]] \
  && [[ $nodeVer != "v19."* ]] \
  && [[ $nodeVer != "v20."* ]] \
  && [[ $nodeVer != "v21."* ]] \
  && [[ $nodeVer != "v22."* ]]; then
    DEPEND_MISSING=true
  fi

  # Check for required (both internal and external) dependencies.
  if \
  ! [ -x "$(command -v unzip)" ] ||                          # unzip
  ! [ -x "$(command -v node)" ] ||                           # node
  ! [ -x "$(command -v yarn)" ] ||                           # yarn
  ! [ -x "$(command -v zip)" ] ||                            # zip
  ! [ -x "$(command -v curl)" ] ||                           # curl
  ! [ -x "$(command -v php)" ] ||                            # php
  ! [ -x "$(command -v git)" ] ||                            # git
  ! [ -x "$(command -v grep)" ] ||                           # grep
  ! [ -x "$(command -v sed)" ] ||                            # sed
  ! [ -x "$(command -v awk)" ] ||                            # awk
  ! [ -x "$(command -v tput)" ] ||                           # tput
  ! [ "$(ls "node_modules/"*"cross-env"* 2> /dev/null)" ] || # cross-env
  ! [ "$(ls "node_modules/"*"webpack"* 2> /dev/null)"   ] || # webpack
  ! [ "$(ls "node_modules/"*"react"* 2> /dev/null)"     ] || # react
  [[ $missinglibs != "" ]]; then                             # internal
    DEPEND_MISSING=true
  fi

  # Exit when missing dependencies.
  if [[ $DEPEND_MISSING == true ]]; then
    PRINT FATAL "Some framework dependencies are not installed or detected."

    if [[ $nodeVer != "v18."* ]] \
    && [[ $nodeVer != "v19."* ]] \
    && [[ $nodeVer != "v20."* ]] \
    && [[ $nodeVer != "v21."* ]] \
    && [[ $nodeVer != "v22."* ]]; then
      PRINT FATAL "Required dependency \"node\" is using an unsupported version."
    fi

    if ! [ -x "$(command -v unzip)"                          ]; then PRINT FATAL "Required dependency \"unzip\" is not installed or detected.";     fi
    if ! [ -x "$(command -v node)"                           ]; then PRINT FATAL "Required dependency \"node\" is not installed or detected.";      fi
    if ! [ -x "$(command -v yarn)"                           ]; then PRINT FATAL "Required dependency \"yarn\" is not installed or detected.";      fi
    if ! [ -x "$(command -v zip)"                            ]; then PRINT FATAL "Required dependency \"zip\" is not installed or detected.";       fi
    if ! [ -x "$(command -v curl)"                           ]; then PRINT FATAL "Required dependency \"curl\" is not installed or detected.";      fi
    if ! [ -x "$(command -v php)"                            ]; then PRINT FATAL "Required dependency \"php\" is not installed or detected.";       fi
    if ! [ -x "$(command -v git)"                            ]; then PRINT FATAL "Required dependency \"git\" is not installed or detected.";       fi
    if ! [ -x "$(command -v grep)"                           ]; then PRINT FATAL "Required dependency \"grep\" is not installed or detected.";      fi
    if ! [ -x "$(command -v sed)"                            ]; then PRINT FATAL "Required dependency \"sed\" is not installed or detected.";       fi
    if ! [ -x "$(command -v awk)"                            ]; then PRINT FATAL "Required dependency \"awk\" is not installed or detected.";       fi
    if ! [ -x "$(command -v tput)"                           ]; then PRINT FATAL "Required dependency \"tput\" is not installed or detected.";      fi
    if ! [ "$(ls "node_modules/"*"cross-env"* 2> /dev/null)" ]; then PRINT FATAL "Required dependency \"cross-env\" is not installed or detected."; fi
    if ! [ "$(ls "node_modules/"*"webpack"* 2> /dev/null)"   ]; then PRINT FATAL "Required dependency \"webpack\" is not installed or detected.";   fi
    if ! [ "$(ls "node_modules/"*"react"* 2> /dev/null)"     ]; then PRINT FATAL "Required dependency \"react\" is not installed or detected.";     fi

    if [[ $missinglibs == *"[parse_yaml]"* ]]; then PRINT FATAL "Required internal dependency \"internal:parse_yaml\" is not installed or detected."; fi
    if [[ $missinglibs == *"[grabEnv]"*    ]]; then PRINT FATAL "Required internal dependency \"internal:grabEnv\" is not installed or detected.";    fi
    if [[ $missinglibs == *"[logFormat]"*  ]]; then PRINT FATAL "Required internal dependency \"internal:logFormat\" is not installed or detected.";  fi
    if [[ $missinglibs == *"[misc]"*       ]]; then PRINT FATAL "Required internal dependency \"internal:misc\" is not installed or detected.";       fi

    exit 1
  fi
}

# Assign variables for extension flags.
assignflags() {
  F_ignorePlaceholders=false
  F_forceLegacyPlaceholders=false
  F_hasInstallScript=false
  F_hasRemovalScript=false
  F_hasExportScript=false
  F_developerIgnoreInstallScript=false
  F_developerIgnoreRebuild=false
  F_developerForceMigrate=false
  F_developerKeepApplicationCache=false
  F_developerEscalateExportScript=false
  if [[ ( $flags == *"ignorePlaceholders,"*            ) || ( $flags == *"ignorePlaceholders"            ) ]]; then F_ignorePlaceholders=true            ;fi
  if [[ ( $flags == *"forceLegacyPlaceholders,"*       ) || ( $flags == *"forceLegacyPlaceholders"       ) ]]; then F_forceLegacyPlaceholders=true       ;fi
  if [[ ( $flags == *"hasInstallScript,"*              ) || ( $flags == *"hasInstallScript"              ) ]]; then F_hasInstallScript=true              ;fi
  if [[ ( $flags == *"hasRemovalScript,"*              ) || ( $flags == *"hasRemovalScript"              ) ]]; then F_hasRemovalScript=true              ;fi
  if [[ ( $flags == *"hasExportScript,"*               ) || ( $flags == *"hasExportScript"               ) ]]; then F_hasExportScript=true               ;fi
  if [[ ( $flags == *"developerIgnoreInstallScript,"*  ) || ( $flags == *"developerIgnoreInstallScript"  ) ]]; then F_developerIgnoreInstallScript=true  ;fi
  if [[ ( $flags == *"developerIgnoreRebuild,"*        ) || ( $flags == *"developerIgnoreRebuild"        ) ]]; then F_developerIgnoreRebuild=true        ;fi
  if [[ ( $flags == *"developerForceMigrate,"*         ) || ( $flags == *"developerForceMigrate"         ) ]]; then F_developerForceMigrate=true         ;fi
  if [[ ( $flags == *"developerKeepApplicationCache,"* ) || ( $flags == *"developerKeepApplicationCache" ) ]]; then F_developerKeepApplicationCache=true ;fi
  if [[ ( $flags == *"developerEscalateExportScript,"* ) || ( $flags == *"developerEscalateExportScript" ) ]]; then F_developerEscalateExportScript=true ;fi
}


# Adds the "blueprint" command to the /usr/local/bin directory and configures the correct permissions for it.
placeshortcut() {
  PRINT INFO "Placing Blueprint command shortcut.."
  {
    touch /usr/local/bin/blueprint
    chmod u+x \
      "$FOLDER/blueprint.sh" \
      /usr/local/bin/blueprint
  } >> "$BLUEPRINT__DEBUG"
  echo -e \
    "#!/bin/bash \n" \
    "if [[ \"\${BASH_SOURCE[0]}\" != \"\${0}\" ]]; then source \"$FOLDER/blueprint.sh\"; return 0; fi; "\
    "bash $FOLDER/blueprint.sh -bash \$@;" \
    > /usr/local/bin/blueprint
}
if ! [ -x "$(command -v blueprint)" ]; then placeshortcut; fi


if [[ $1 != "-bash" ]]; then
  if dbValidate "blueprint.setupFinished"; then
    PRINT FATAL "Installation process has already been finished before, consider using the 'blueprint' command."
    exit 2
  else
    # Only run if Blueprint is not in the process of upgrading.
    if [[ $1 != "--post-upgrade" ]]; then
      # Print Blueprint icon with ascii characters.
      echo -e "  ██\n██  ██\n  ████\n";
    fi

    PRINT INFO "Searching and validating framework dependencies.."
    # Check if required dependencies are installed
    depend

    # Place Blueprint shortcut
    placeshortcut

    # Link directories.
    PRINT INFO "Linking directories and filesystems.."
    {
      ln -s -r -T "$FOLDER/.blueprint/extensions/blueprint/public" "$FOLDER/public/extensions/blueprint"
      ln -s -r -T "$FOLDER/.blueprint/extensions/blueprint/assets" "$FOLDER/public/assets/extensions/blueprint"
      ln -s -r -T "$FOLDER/scripts/libraries" "$FOLDER/.blueprint/lib"
    } 2>> "$BLUEPRINT__DEBUG"
    php artisan storage:link &>> "$BLUEPRINT__DEBUG"

    PRINT INFO "Replacing internal placeholders.."
    # Copy "Blueprint" extension page logo from assets.
    cp "$FOLDER/.blueprint/assets/logo.jpg" "$FOLDER/.blueprint/extensions/blueprint/assets/logo.jpg"

    # Put application into maintenance.
    PRINT INPUT "Would you like to put your application into maintenance while Blueprint is installing? (Y/n)"
    read -r YN
    if [[ ( $YN == "y"* ) || ( $YN == "Y"* ) || ( $YN == "" ) ]]; then
      MAINTENANCE="true"
      PRINT INFO "Put application into maintenance mode."
      php artisan down &>> "$BLUEPRINT__DEBUG"
    else
      MAINTENANCE="false"
      PRINT INFO "Putting application into maintenance has been skipped."
    fi

    # Flush cache.
    PRINT INFO "Flushing view, config and route cache.."
    {
      php artisan view:cache
      php artisan config:cache
      php artisan route:clear
      php artisan cache:clear
    } &>> "$BLUEPRINT__DEBUG"
    updateCacheReminder

    # Run migrations if Blueprint is not upgrading.
    if [[ ( $1 != "--post-upgrade" ) && ( $DOCKER != "y" ) ]]; then
      PRINT INPUT "Would you like to migrate your database? (Y/n)"
      read -r YN
      if [[ ( $YN == "y"* ) || ( $YN == "Y"* ) || ( $YN == "" ) ]]; then
        PRINT INFO "Running database migrations.."
        php artisan migrate --force
      else
        PRINT INFO "Database migrations have been skipped."
      fi
    fi

    # Make sure all files have correct permissions.
    PRINT INFO "Changing Pterodactyl file ownership to '$OWNERSHIP'.."
    find "$FOLDER/" \
      -path "$FOLDER/node_modules" -prune \
      -o -exec chown "$OWNERSHIP" {} + &>> "$BLUEPRINT__DEBUG"

    # Rebuild panel assets.
    PRINT INFO "Rebuilding panel assets.."
    yarn run build:production --progress

    if [[ $DOCKER != "y" ]]; then
      # Sync some database values.
      PRINT INFO "Syncing Blueprint-related database values.."
      php artisan bp:sync
    fi

    if [[ $DOCKER != "y" ]] && [[ $MAINTENANCE == "true" ]]; then
      # Put application into production.
      PRINT INFO "Put application into production."
      php artisan up &>> "$BLUEPRINT__DEBUG"
    fi

    # Finish installation
    if [[ $1 != "--post-upgrade" ]]; then
      PRINT SUCCESS "Blueprint has completed its installation process."
    fi

    dbAdd "blueprint.setupFinished"
    # Let the panel know the user has finished installation.
    sed -i "s/NOTINSTALLED/INSTALLED/g" "$FOLDER/app/BlueprintFramework/Services/PlaceholderService/BlueprintPlaceholderService.php"
    exit 0
  fi
fi


case "${2}" in
  -add|-install|-i) source ./scripts/commands/extensions/install.sh ;;
  -remove|-r) source ./scripts/commands/extensions/remove.sh ;;
  -init|-I) source ./scripts/commands/developer/init.sh ;;
  
  *) source ./scripts/commands/misc/help.sh ;;
esac

shift 2
Command "$@"
#exit 0


# -r, -remove
if [[ ( $2 == "-r" ) || ( $2 == "-remove" ) ]]; then VCMD="y"
  if [[ $3 == "" ]]; then PRINT FATAL "Expected at least 1 argument but got 0.";exit 2;fi

  source ./scripts/commands/extensions/remove.sh

  # Remove selected extensions
  current=0
  extensions=$(shiftArgs "$@")
  total=$(echo "$extensions" | wc -w)
  for extension in $extensions; do
    (( current++ ))
    RemoveCommand "$extension" "$current" "$total"
  done

  if [[ $RemovedExtensions != "" ]]; then
    # Finalize transaction
    PRINT INFO "Finalizing transaction.."

    # Rebuild panel
    if [[ $YARN == "y" ]]; then
      PRINT INFO "Rebuilding panel assets.."
      yarn run build:production --progress
    fi

    # Link filesystems
    PRINT INFO "Linking filesystems.."
    php artisan storage:link &>> "$BLUEPRINT__DEBUG"

    # Flush cache.
    PRINT INFO "Flushing view, config and route cache.."
    {
      php artisan view:cache
      php artisan config:cache
      php artisan route:clear
      php artisan cache:clear
    } &>> "$BLUEPRINT__DEBUG"

    # Make sure all files have correct permissions.
    PRINT INFO "Changing Pterodactyl file ownership to '$OWNERSHIP'.."
    find "$FOLDER/" \
    -path "$FOLDER/node_modules" -prune \
    -o -exec chown "$OWNERSHIP" {} + &>> "$BLUEPRINT__DEBUG"

    sendTelemetry "FINISH_EXTENSION_REMOVAL" >> "$BLUEPRINT__DEBUG"
    CorrectPhrasing="have"
    if [[ $total = 1 ]]; then CorrectPhrasing="has"; fi
    PRINT SUCCESS "$RemovedExtensions $CorrectPhrasing been removed."

    exit 0
  else
    exit 1
  fi
fi


# -v, -version
if [[ ( $2 == "-v" ) || ( $2 == "-version" ) ]]; then VCMD="y"
  source ./scripts/commands/misc/version.sh
  VersionCommand
fi


# -debug
if [[ $2 == "-debug" ]]; then VCMD="y"
  source ./scripts/commands/misc/debug.sh
  DebugCommand "$3"
fi

# -build
if [[ ( $2 == "-build" || $2 == "-b" ) ]]; then VCMD="y"
  source ./scripts/commands/developer/build.sh
  BuildCommand
fi


# -export
if [[ ( $2 == "-export" || $2 == "-e" ) ]]; then VCMD="y"
  # Check for developer mode through the database library.
  if ! dbValidate "blueprint.developerEnabled"; then PRINT FATAL "Developer mode is not enabled.";exit 2; fi

  if [[ -z $(find .blueprint/dev -maxdepth 1 -type f -not -name ".gitkeep" -print -quit) ]]; then
    PRINT FATAL "Development directory is empty."
    exit 2
  fi

  PRINT INFO "Start packaging extension.."

  cd .blueprint || cdhalt
  rm dev/.gitkeep 2>> "$BLUEPRINT__DEBUG"

  eval "$(parse_yaml dev/conf.yml conf_)"; identifier="${conf_info_identifier}"

  cp -r dev/* tmp/
  cd tmp || cdhalt

  # Assign variables to extension flags.
  flags="$conf_info_flags"
  PRINT INFO "Reading and assigning extension flags.."
  assignflags

  if $F_hasExportScript; then
    chmod +x "${conf_data_directory}""/export.sh"

    # Run script while also parsing some useful variables for the export script to use.
    if $F_developerEscalateExportScript; then
      EXTENSION_IDENTIFIER="$conf_info_identifier"        \
      EXTENSION_TARGET="$conf_info_target"                \
      EXTENSION_VERSION="$conf_info_version"              \
      PTERODACTYL_DIRECTORY="$FOLDER"                     \
      BLUEPRINT_EXPORT_DIRECTORY="$FOLDER/.blueprint/tmp" \
      BLUEPRINT_VERSION="$VERSION"                        \
      bash "${conf_data_directory}"/export.sh
    else
      su "$WEBUSER" -s "$USERSHELL" -c "
          cd \"$FOLDER\"/.blueprint/tmp;
          EXTENSION_IDENTIFIER=\"$conf_info_identifier\"        \
          EXTENSION_TARGET=\"$conf_info_target\"                \
          EXTENSION_VERSION=\"$conf_info_version\"              \
          PTERODACTYL_DIRECTORY=\"$FOLDER\"                     \
          BLUEPRINT_EXPORT_DIRECTORY=\"$FOLDER/.blueprint/tmp\" \
          BLUEPRINT_VERSION=\"$VERSION\"                        \
          bash \"${conf_data_directory}\"/export.sh
        "
    fi
    echo -e "\e[0m\x1b[0m\033[0m"
  fi

  zip -r extension.zip ./*
  cd "${FOLDER}" || cdhalt
  cp .blueprint/tmp/extension.zip "${identifier}.blueprint"
  rm -R .blueprint/tmp
  mkdir -p .blueprint/tmp

  if [[ $3 == "expose"* ]]; then
    PRINT INFO "Generating download url.. (expires after 2 minutes)"
    randstr=${RANDOM}${RANDOM}${RANDOM}${RANDOM}${RANDOM}
    mkdir .blueprint/extensions/blueprint/assets/exports/${randstr}
    cp "${identifier}".blueprint .blueprint/extensions/blueprint/assets/exports/${randstr}/"${identifier}".blueprint

    PRINT SUCCESS "Extension has been exported to '$(grabAppUrl)/assets/extensions/blueprint/exports/${randstr}/${identifier}.blueprint' and '${FOLDER}/${identifier}.blueprint'."
    sleep 120 && rm -R .blueprint/extensions/blueprint/assets/exports/${randstr} 2>> "$BLUEPRINT__DEBUG" &
  else
    PRINT SUCCESS "Extension has been exported to '${FOLDER}/${identifier}.blueprint'."
  fi
  sendTelemetry "EXPORT_DEVELOPMENT_EXTENSION" >> "$BLUEPRINT__DEBUG"
fi


# -wipe
if [[ ( $2 == "-wipe" || $2 == "-w" ) ]]; then VCMD="y"
  # Check for developer mode through the database library.
  if ! dbValidate "blueprint.developerEnabled"; then PRINT FATAL "Developer mode is not enabled.";exit 2; fi

  if [[ -z $(find .blueprint/dev -maxdepth 1 -type f -not -name ".gitkeep" -print -quit) ]]; then
    PRINT FATAL "Development directory is empty."
    exit 2
  fi

  PRINT INPUT "You are about to wipe all of your development files, are you sure you want to continue? This cannot be undone. (y/N)"
  read -r YN
  if [[ ( ( ${YN} != "y"* ) && ( ${YN} != "Y"* ) ) || ( ( ${YN} == "" ) ) ]]; then PRINT INFO "Development files removal cancelled.";exit 1;fi

  PRINT INFO "Clearing development folder.."
  rm -R \
    .blueprint/dev/* \
    .blueprint/dev/.* \
    2>> "$BLUEPRINT__DEBUG"

  PRINT SUCCESS "Development folder has been cleared."
fi


# -info
if [[ ( $2 == "-info" || $2 == "-f" ) ]]; then VCMD="y"
  source ./scripts/commands/misc/info.sh
  Command
fi


# -rerun-install
if [[ $2 == "-rerun-install" ]]; then VCMD="y"
  source ./scripts/commands/advanced/rerun-install.sh
  Command
fi


# -upgrade
if [[ $2 == "-upgrade" ]]; then VCMD="y"
  source ./scripts/commands/advanced/upgrade.sh
  UpgradeCommand "$1" "$2"
fi



# When the users attempts to run an invalid command.
if [[ ${VCMD} != "y" && $1 == "-bash" ]]; then
  # This is logged as a "fatal" error since it's something that is making Blueprint run unsuccessfully.
  PRINT FATAL "'$2' is not a valid command or argument. Use argument '-help' for a list of commands."
  exit 2
fi