bash_functions

# vi:syntax=sh

function psgrep() {
  ps aux | grep -i --color=always "$1" | grep -v "grep"
}

function md5() {
  echo -n "$1" | md5sum | awk '{print $1}'
}

function t() {
  thunar "$1" &
}

function hash-compare() {
  if [ "$#" -ne 2 ]; then
    echo "Please supply two files to diff"
  else
    sum1=$(md5sum $1)
    sum2=$(md5sum $2)
    hash1="${sum1/$1/}"
    hash2="${sum2/$2/}"
    if [ "$hash1" == "$hash2" ]; then
      echo -e "\e[92midentical\e[39m"
    else
      echo -e "\e[91mdifferent\e[39m"
    fi
  fi
}

function c() {
  cd "$1" && ls -lh
}

function ed() {
  geany "$1" &
}

# Update system time from ntp server and set hardware clock
function time-sync() {
  sudo ntpdate ptbtime1.ptb.de ptbtime2.ptb.de ptbtime3.ptb.de 0.de.pool.ntp.org
  sudo hwclock --systohc
}

weather() {
  curl https://wttr.in/${1:-Frankfurt}
}

wifi() {
    if [ "$1" = "ls" ]; then
        nmcli device wifi list
    else
        nmcli dev wifi show-password
    fi
}

function transfer() {
  # check arguments
  if [ $# -eq 0 ]; then
    echo -e "No arguments specified. Usage:\ntransfer /tmp/test.md\ncat /tmp/test.md | transfer test.md"
    return 1
  fi

  # get temporarily filename, output is written to this file show progress can be showed
  tmpfile=$(mktemp -t transferXXX)

  # upload stdin or file
  file=$1

  if tty -s; then
    basefile=$(basename "$file" | sed -e 's/[^a-zA-Z0-9._-]/-/g')

    if [ ! -e $file ]; then
      echo "File $file doesn't exists."
      return 1
    fi

    if [ -d $file ]; then
      # zip directory and transfer
      zipfile=$(mktemp -t transferXXX.zip)
      cd $(dirname $file) && zip -r -q - $(basename $file) >>$zipfile
      curl --progress-bar --upload-file "$zipfile" "https://transfer.sh/$basefile.zip" >>$tmpfile
      rm -f $zipfile
    else
      # transfer file
      curl --progress-bar --upload-file "$file" "https://transfer.sh/$basefile" >>$tmpfile
    fi
  else
    # transfer pipe
    curl --progress-bar --upload-file "-" "https://transfer.sh/$file" >>$tmpfile
  fi

  # cat output link
  cat $tmpfile

  # cleanup
  rm -f $tmpfile
}

function burn-folder() {
  if [ $# -lt 1 ]; then
    echo Usage: ${FUNCNAME[0]} [DIRECTORY]
    return 1
  fi

  temp_dir="/tmp"
  device="/dev/sr0"
  volume_name="Volume"

  mkdir -p "$temp_dir"

  echo -e "\nCreating temporary image of $1\n"

  mkisofs -V $volume_name -J -r -o $temp_dir/isoimage.iso $1

  echo -e "\nBurning to disc.\n"

  wodim -v dev=$device $temp_dir/isoimage.iso

  if [ "$?" == "1" ]; then
    echo -e -n "\nBurning failed. "
    return 1
  else
    echo -e -n "\nBurning finished. "
    eject $device
  fi

  while ([ "$clean" != "y" ] && [ "$clean" != "n" ]); do
    echo "Delete temporary image? [y,n]"
    read -s -n 1 clean
  done

  if [ $clean == "y" ]; then
    rm $temp_dir/isoimage.iso -f
    echo -e "\nImage deleted."
  else
    echo -e "\nImage was saved in $temp_dir"
  fi

  echo -e "\nBye!"
}

function burn-mp3() {
  if [ $# -lt 1 ]; then
    echo Burn a gapless Audio CD from MP3 source folder.
    echo Usage: ${FUNCNAME[0]} [DIRECTORY]
    return 1
  fi

  source_dir=$1
  temp_dir="/tmp/mp3burn"
  device="/dev/sr0"

  if [ -e $temp_dir ]; then
    rm "$temp_dir" -r
  fi

  mkdir -p "$temp_dir"
  cd "$source_dir"

  for file in *.[mM][pP]3; do
    echo "Converting '$file' into wav format."
    lame -S --decode "$file" "$temp_dir/$file.wav"
    if [ "$?" == "1" ]; then
      echo -e "Decoding error!\n"
      return 1
    fi
  done

  echo -e "\nCreating gapless toc."
  cd "$temp_dir"
  {
    echo "CD_DA"
    for file in *.wav; do
      echo "TRACK AUDIO"
      echo "FILE \"$file\" 0"
    done
  } >toc

  echo -e "\nEverything is ready. Press any key to start burning (or <ctrl-c> to cancel)."
  read -s -n 1
  echo

  while true; do
    cdrdao write -n --device $device toc
    if [ "$?" == "1" ]; then
      echo -e -n "\nBurning failed. "
      echo "retry? [y,n]"
      read -s -n 1 retry
      if [ $retry != "y" ]; then
        break
      fi
    else
      echo -e -n "\nBurning successful."
      break
    fi
  done
}