# Source bash specific set up,
[[ -f ~/.bashrc ]] && . ~/.bashrc

# Environment.
export EDITOR="nano"
export LANG="en_GB.UTF-8"
export LC_COLLATE="POSIX"	# 'C' causes issues with some applications
# export LC_CTYPE="POSIX"	# Not sure why I set this in the first place...
export LESS="-RM -j.5 -i -PM?f%F:stdin.    --    Page %dt of %D    --    %lt/%L (%Pt\%)$"
export PAGER="less"
export PATH="/opt/sbin:/usr/local/sbin:/usr/sbin:/sbin:$PATH"
export VISUAL="$EDITOR"
hash lesspipe >/dev/null 2>&1 && eval "$(SHELL=/bin/sh lesspipe)"

# Platform specific set up.
PLATFORM="$(uname -s)"
if [[ "$PLATFORM" = "Linux" ]]; then
  export GPG_TTY="$(tty)" && gpg-connect-agent updatestartuptty /bye >/dev/null
  export I_WANT_A_BROKEN_PS=1
  export LYNX_CFG="$HOME/.lynx.cfg"
  export LYNX_LSS="$HOME/.lynx.lss"
  export MANPAGER="less"
  export MANPATH="$HOME/.local/share/man:$MANPATH"
  hash dircolors >/dev/null 2>&1 && eval "$(dircolors -b ~/.dir_colors)"
elif [[ "$PLATFORM" = "Darwin" ]]; then
  export LSCOLORS="ExGxdxdxCxDxDxbcacbeae"
  export MANPAGER="less -Mis -PM'Page %dt$'"
  export MANPATH="/opt/local/share/man:$MANPATH"
  export PATH="/opt/local/sbin:/opt/local/bin:$PATH"
else
  echo "${BASH_SOURCE##*/}: unsupported platform: $PLATFORM" >&2
fi
unset PLATFORM

# Add bin directories to PATH.
[[ -d "$HOME/.local/bin" ]] && export PATH="$HOME/.local/bin:$PATH"
[[ -d "$HOME/bin" ]] && export PATH="$HOME/bin:$PATH"
[[ -d "$HOME/files/bin" ]] && export PATH="$HOME/files/bin:$PATH"

# Screen.
hash screen >/dev/null 2>&1 && {
  [[ -e "$HOME/.screenrc-${HOSTNAME%%.*}" ]] && export SCREENRC="$HOME/.screenrc-${HOSTNAME%%.*}"
  export SCREENDIR="$HOME/.screen-${HOSTNAME%%.*}"
  if [[ -n "$SSH_TTY" ]]; then
    if [[ -n "$STY" ]]; then
      echo "Screen $STY, window $WINDOW."
      echo
    else
      SCREENS="$(screen -ls | grep '[[:alpha:]]' | grep -E -v '^([[:digit:]]+|No) Socket(s)?')"
      if [[ -n "$SCREENS" ]]; then
        echo "$SCREENS"
        echo
      else
        echo "No screens."
        echo
      fi
      unset SCREENS
    fi
  elif [[ -n "$STY" ]]; then
    echo "Screen $STY, window $WINDOW."
    echo
  else
    TTY="$(tty | cut -d/ -f3-)"
    SCREENS="$(screen -list | grep -F "${HOSTNAME%%.*}" | grep -F "${TTY//\//-}")"
    case "$(echo ${SCREENS:--n} | wc -l)" in
      0)
        # No screens found - start a new instance, if on a tty.
        [[ "$TTY" == *tty* ]] && screen
        ;;
      1)
        # Just one screen - reconnect if it's not dead.
        if (( $(echo "$SCREENS" | grep "Dead" | wc -l) == 1 )); then
          echo "Found dead screen for $TTY:"
          echo "$SCREENS" | sed -e 's/^/    /g'
        else
          screen -dr "${TTY//\//-}.${HOSTNAME%%.*}"
        fi
        ;;
      *)
        # Multiple screens - output a list
        echo "Multiple screens found for $TTY:"
        echo "$SCREENS" | sed -e 's/^/    /g'
        ;;
    esac
    unset SCREENS
  fi
}