#!/usr/bin/env bash

unset rvm_auto_flag

source scripts/version
source scripts/utility

usage() {
  echo -e "
  Usage:
    ${0} <options>

  Options:
    --auto    : Automatically update shell profile files.
    --prefix  : Installation prefix directory.
    --help    : Display help/usage (this) message
    --version : display rvm package version
  "
}

while [[ $# -gt 0 ]] ; do
  token="$1" ; shift
  case "$token" in
    --auto)    rvm_auto_flag=1          ;;
    --prefix)  prefix_path="$1" ; shift ;;
    --version) rvm_path="$(pwd)" ; __rvm_version ; unset rvm_path ; exit ;;
    --help|*)  usage                    ;;
  esac
done

if [[ -s /etc/rvmrc ]] ; then source /etc/rvmrc ; fi
if [[ -s "$HOME/.rvmrc" ]] ; then source "$HOME/.rvmrc" ; fi

if ! [[ "$rvm_path" =~ /rvm/?$ ]] ; then
  unset rvm_path
  if [[ "root" = "$(whoami)" ]] ; then
    rvm_path="/usr/local/rvm"
  else
    rvm_path="$HOME/.rvm"
  fi
fi

source scripts/initialize

__rvm_initialize

#
# Setup
#
item="$(tput setaf 2)* $(tput sgr0)"
question="\n$(tput setaf 2)<?>$(tput sgr0)"
cwd=$(pwd)
source_path="${source_path:-"$(dirname $0 | xargs dirname)"}"
if [[ ! -d "$source_path" ]] ; then unset source_path ; fi
source_path="${source_path:-$cwd}"

# State what is required to use rvm
echo -e "\nInstalling rvm to $rvm_path/ ..."
for dir_name in src scripts bin log archives config gems examples ; do
  mkdir -p "$rvm_path/$dir_name"
done
cp -f "$source_path/README" "$rvm_path/"

#
# Scripts
#
rm -rf $rvm_path/scripts # Clear the old scripts directory so that the old style rvm- scripts are cleared out.
for dir_name in config scripts examples lib hooks ; do
  mkdir -p "$rvm_path/$dir_name"
  if [[ -d "$source_path/$dir_name" ]] ; then
    cp -Rf "$source_path/$dir_name" "$rvm_path"
  fi
done ; unset dir_name

if [[ ! -s "$rvm_path/config/user" ]] ; then
  echo '# Users settings file, overrides db file settings and persists across installs.' >> $rvm_path/config/user
fi

#
# Bin Scripts
#
# Cleanse and purge...
rm -f $rvm_path/bin/rvm ; rm -rf $rvm_path/bin/binscripts
for file in rvm-prompt rvm rvmsudo ; do
  cp -f "$source_path/binscripts/$file" $rvm_path/bin/
done
chmod +x $rvm_path/bin/*

#
# RC Files
#
if [[ ! -z "$rvm_auto_flag" ]] ; then
  echo -e "Checking rc files... ($rvm_rc_files)"
  if [[ "$rvm_loaded_flag" != "1" ]] ; then
    for rcfile in $(echo $rvm_rc_files) ; do
      if [[ ! -f $rcfile ]] ; then touch $rcfile ; fi
      if [[ -s "$HOME/.profile" ]] ; then
        if ! grep -q '.profile' "$rcfile" ; then
          echo "    Adding 'if [[ -s \$HOME/.profile ]] ; then source \$HOME ; fi' to $rcfile."
          echo -e "\n# rvm-install added line:\nif [[ -s \$HOME/.profile ]] ; then source \$HOME/.profile ; fi\n" >> $rcfile
        fi
      fi
      if ! grep -q "scripts\/rvm" "$rcfile" ; then
        echo "    Adding 'if [[ -s $rvm_path/scripts/rvm ]] ; then source $rvm_path/scripts/rvm ; fi' to $rcfile."
        echo -e "\n# rvm-install added:\nif [[ -s $rvm_path/scripts/rvm ]] ; then source $rvm_path/scripts/rvm ; fi\n" >> $rcfile
      fi
    done
  fi
fi

#
# TODO: Migrate ~/.rvm/ruby-X,jruby-X,... to ~/.rvm/rubies/
#
#rvm_rubies_path="${rvm_rubies_path:-"$rvm_path/rubies"}"
#mkdir -p $rvm_rubies_path
#for ruby in "$rvm_path"/ruby-* "$rvm_path"/jruby-* "$rvm_path"/mput-* "$rvm_path"/rbx-* ; do
#  if [[ -d "$ruby" ]] ; then mv "$ruby" "$rvm_rubies_path" ; fi
#done

if [[ "root" = "$(whoami)" ]] ; then
  echo -e "\n    Symlinking rvm to $rvm_symlink_path/rvm ..."
  mkdir -p $rvm_symlink_path
  ln -nfs $rvm_path/bin/rvm $rvm_symlink_path/rvm
  ln -nfs $rvm_path/bin/rvmsudo $rvm_symlink_path/rvmsudo
  chmod +x $rvm_symlink_path/rvm
  chmod +x $rvm_symlink_path/rvmsudo
fi

echo -e "\n$(tput setaf 2)rvm$(tput sgr0) - shell scripts that allows a user to manage multiple ruby versions in their own account."
$rvm_path/scripts/notes

echo -e "$(tput setaf 2)RTFM: $(tput sgr0) http://rvm.beginrescueend.com/"
echo -e "\n$(tput setaf 2)HELP: $(tput sgr0) http://webchat.freenode.net/?channels=rvm "
echo "================================================================================"
name="$(awk -F= '/^[[:space:]]*name/{print $2}' ~/.gitconfig 2>/dev/null)"
echo -e "\n${name:-"$(whoami)"},\n"
echo -e "\nThank you for using rvm. I hope that it makes your work easier and more enjoyable."
echo -e "If you have any questions, issues and/or ideas for improvement please hop in #rvm on irc.freenode.net and let me know."
echo -e "My irc nickname is 'wayneeseguin' and I hang out from ~09:00-17:00EST and again from ~21:00EST-~00:00EST."
echo -e "If I do not respond right away, please hang around after asking your question, I will respond as soon as I am back."
echo -e "\n  w$(tput setaf 2)⦿‿⦿$(tput sgr0)t!"
echo -e "\n    ~ Wayne\n"
echo "================================================================================"
echo -e "Upgrades"
echo -e "Gems are now per interpreter installation instead of per interpreter/version"
echo -e "so for example to upgrade an older install of 1.8.6 and preserve gems:"
echo -e "rm -rf ~/.rvm/gems/ruby-1.8.6-p383 ;  mv ~/.rvm/gems/ruby/1.8.6 ~/.rvm/gems/ruby-1.8.6-p383"
echo "================================================================================"
echo -e "\n$(tput setaf 1)You must now finish the install manually:$(tput sgr0)"
echo -e "\n1) Place the folowing line at the end of your shell's loading files(.bashrc and then .bash_profile for bash and .zshrc for zsh), after all path/variable settings:"
echo -e "\n     if [[ -s $rvm_path/scripts/rvm ]] ; then source $rvm_path/scripts/rvm ; fi"
echo -e "\n2) Ensure that there is no 'return' from inside the .bashrc file. (otherwise rvm will be prevented from working properly)."
echo -e "\n3) $(tput setaf 1)CLOSE THIS SHELL$(tput sgr0) and open a new one in order to use rvm.\n"

exit 0