#!/usr/bin/env sh

if [ -f "/usr/local/bin/kak" ]; then
  kak="exec /usr/local/bin/kak"
else
  kak="exec /usr/bin/kak"
fi

# Don't do stuff if we are being piped into
if [ ! -t 0 ]; then
  echo "$(cat)" | $kak "$@"
  exit
fi

# Don't do stuff if any flags were passed to kak
case "$1" in
  -L)
    shift
    $kak "$@"
    exit
    ;;
  -*)
    $kak "$@"
    exit
    ;;
  # Passing in a line number
  +*)
    $kak "$@"
    exit
    ;;
esac

# Change filename to absolute path
# This only works with the first one, but that's fine
if [ -n "$1" ]; then
  set -- "$(realpath $1)"
fi

# Attempt to root by git repo, or by .kakrc file
basedir=$(git rev-parse --show-toplevel 2> /dev/null)
if [ -n "$basedir" ]; then
  # Set session name
  session=$(basename "$basedir" | sed 's/\./-/g')
  # Change to project root dir
  cd "$basedir"
else
  oldpwd="$PWD"
  while [ "$PWD" != "/" ]; do
    if [ -f .kakrc ] || [ -f .editorconfig ]; then
      session=$(basename "$PWD" | sed 's/\./-/g')
      break
    fi
    cd ..
  done
  # If not found, revert to original dir
  if [ -z "$session" ]; then
    cd "$oldpwd"
  fi
fi

sessions="$($kak -l)"
if $(echo "$sessions" | grep -q "(dead)"); then
  echo "Clearing dead sessions"
  $kak -clear
  sessions="$($kak -l)"
fi

if [ -z "$session" ]; then
  $kak "$@"
  exit
fi

if $(echo "$sessions" | grep -q "^$session$"); then
  $kak -c $session "$@"
else
  $kak -s $session "$@"
fi