# A collection of various shell utilities.

autoload colors && colors

# Abstract different ways to copy to the clipboard.
if [ -n "$SSH_CONNECTION" ] ; then
  # Use OSC-52 to set the clipboard
  alias copy='base64 | xargs -0 printf "\033]52;c;%s\a"'
elif [ "`uname`" = "Darwin" ]; then
  # Use pbcopy to set the clipboard
  alias copy='pbcopy'
elif which xclip &> /dev/null; then
  # Use xclip to set the clipboard
  alias copy='xclip -selection c'
fi

# Abstract different ways to paste from the clipboard.
# TODO: Use OSC-52 to get the clipboard, not widely supported though
if [ "`uname`" = "Darwin" ]; then
  # Use pbpaste to get the clipboard
  alias paste='pbpaste'
elif which xclip &> /dev/null; then
  # Use xclip to get the clipboard
  alias paste='xclip -selection c -o'
fi

# Passthrough an escape sequences tmux doesn't know about.
tmux-dcs-passthrough() {
  if [ -n "$TMUX" ]; then
    printf "\x1bPtmux;\x1b$1\x1b\\"
  else
    printf "$1"
  fi
}

# OSC 9 - Post a notification - supported by iTerm2, maybe others?
notify() {
  tmux-dcs-passthrough "\x1b]9;$*\x7"
}

# Detect the type and extract an archive file.
extract() {
  if [ -f $1 ]; then
    case $1 in
      *.tar.bz2)  tar xvjf $1 ;;
      *.tar.gz)   tar xvzf $1 ;;
      *.tar.xz)   [ `"uname"` = "Darwin" ] && tar xvJf $1 || gunzip $1 ;;
      *.bz2)      bunzip2 $1 ;;
      *.rar)      unrar x $1 ;;
      *.gz)       gunzip $1 ;;
      *.tar)      tar xvf $1 ;;
      *.tbz2)     tar xvjf $1 ;;
      *.tgz)      tar xvzf $1 ;;
      *.zip)      unzip $1 ;;
      *.Z)        uncompress $1 ;;
      *.7z)       7zr x $1 ;;
      *)          echo "$fg[red]error:$reset_color unable to extract '$1'" ;;
    esac
  else
    echo "$fg[red]error:$reset_color file not found '$1'"
  fi
}

if which bat &> /dev/null; then
  # Wrap bat to specify a theme, always enable color, pipe the output to less.
  # Both --theme and --color can be specified multiple times and will override
  # these defaults.
  bat() {
    command bat --theme='Solarized (dark)' --color always \
                --paging always --pager 'less -R' "$@"
  }
fi

if which docker-machine &> /dev/null; then
  # Wrap the docker command to print a message if a docker-machine is not
  # running, rather than just stating it can not find it's socket.
  docker() {
    command docker "$@"
    if ! docker-machine active &> /dev/null; then
      echo "$fg[red]error:$reset_color no active host found, run:" \
           "docker-machine start <machine>"
      return 1
    fi
  }

  # Wrap the docker-machine command to automatically update the environment.
  # When a machine is started, set the environment variables provided by
  # docker-machine env <machine>. When a machine is stopped, unset the same
  # variables.
  docker-machine() {
    command docker-machine "$@"
    if [ "start" = "$1" ]; then
      eval `docker-machine env $2`
    elif [ "stop" = "$1" ]; then
      unset DOCKER_MACHINE_NAME
      unset DOCKER_CERT_PATH
      unset DOCKER_HOST
      unset DOCKER_TLS_VERIFY
    fi
  }
fi