dotfiles/.config/lf/preview

#!/usr/bin/env bash
image() {
    f=$1
    w=$2
    h=$3
    x=$4
    y=$5
    kitty +icat --silent --transfer-mode file --place "${w}x${h}@${x}x${y}" "$f" && return 0
    chafa "$f" -f symbols -s "$(($w-2))x$h" && return 0
    echo -e "\e[31mImage previewer not installed\e[0m"
    return 1
}

video() {
    f=$1
    w=$2
    h=$3
    x=$4
    y=$5
    command -v vidthumb && thumb="$(vidthumb "$f")" || echo -e "\e[31mvidthumb script not in path\e[0m" && return 1
    image "$f" "$w" "$h" "$x" "$y" && return 0
    return 1
}

batorcat() {
	f=$1
  w=$2
	if command -v bat > /dev/null 2>&1; then
		bat --color=always --style=plain --pager=never --terminal-width "$(($w-2))" "$f"
  elif command -v batcat > /dev/null 2>&1; then 
		batcat --color=always --style=plain --pager=never --terminal-width "$(($w-2))" "$f"
	else
		cat "$f"
	fi
}

CACHE="$HOME/.cache/lf/thumbnail.$(stat --printf '%n\0%i\0%F\0%s\0%W\0%Y' -- "$(readlink -f "$1")" | sha256sum | awk '{print $1}'))"

case "$(xdg-mime query filetype "$1")" in
  */x-bzip-compressed-tar|*/x-compressed-tar) als -- "$1" && exit 0 || echo -e "\e[31matools not installed\e[0m" && exit 1;;
  */x-7z-compressed|*/vnd.rar|*/x-tar|*/zip|*/x-java-archive|*/x-xz) 7z l "$1" | sed 1,11d && exit 0 || echo -e "\e[31m7zip not installed\e[0m" && exit 1;;
  */x-cd-image) iso-info --no-header -l "$1" && exit 0 || echo -e "\e[31mlibcdio-utils not installed\e[0m" && exit 1;;
  */x-bittorrent) transmission-show "$1" && exit 0 || echo -e "\e[31mtransmission-cli not installed\e[0m" && exit 1;;
  */vnd.sun.xml.writer) odt2txt "$1" && exit 0 || echo -e "\e[31modt2txt not installed\e[0m" && exit 1;;
  */msword) catdoc "$1" && exit 0 || echo -e "\e[31mcatdoc not installed\e[0m" && exit 1;;
  */vnd.openxmlformats-officedocument.wordprocessingml.document) docx2txt < "$1" && exit 0 || echo -e "\e[31mdocx2txt not installed\e[0m" && exit 1;;
  */vnd.ms-excel) ssconvert --export-type=Gnumeric_stf:stf_csv "$1" "fd://1" | batorcat --language=csv  && exit 0 || echo -e "\e[31mgnumeric not installed\e[0m" && exit 1;;
  */vnd.openxmlformats-officedocument.spreadsheetml.sheet) ssconvert --export-type=Gnumeric_stf:stf_csv "$1" "fd://1" | batorcat --language=csv && exit 0 || echo -e "\e[31mgnumeric not installed\e[0m" && exit 1;;
  */epub+zip) [ ! -f "$CACHE" ] && epub-thumbnailer "$1" "$CACHE" 1024; image "$CACHE" "$2" "$3" "$4" "$5" && exit 0 || echo -e "\e[31mepubthumbnailer not installed (https://github.com/marianosimone/epub-thumbnailer)\e[0m" && exit 1;;
  */pgp-encrypted) gpg -d -- "$1" && exit 0 || echo -e "\e[31mgpg not installed\e[0m" && exit 1;;
  */pkix-cert) openssl x509 -text -noout -in "$1" && exit 0 || echo -e "\e[31mopenssl not installed\e[0m" && exit 1;;
  image/*) image "$1" "$2" "$3" "$4" "$5" && exit 0;;
  video/*) video "$1" "$2" "$3" "$4" "$5" && exit 0;;
  *opendocument*) odt2txt "$1" && exit 0 || echo -e "\e[31modt2txt not installed\e[0m" && exit 1;;
  */markdown) glow "$1" && exit 0 || echo -e "\e[31mglow not installed (https://github.com/charmbracelet/glow)\e[0m" && exit 1;;
  */html) w3m -dump "$1" && exit 0 || lynx -dump "$1" && exit 0 || echo -e "\e[31neither lynx nor w3m installed\e[0m" && exit 1;;
  text/*|*/json|*/xml) batorcat "$1" "$2" && exit 0;;
  */pdf) [ ! -f "${CACHE}.jpg" ] && pdftoppm -jpeg -f 1 -singlefile "$1" "$CACHE"; image "${CACHE}.jpg" "$2" "$3" "$4" "$5" && exit 0  || echo -e "\e[31mpoppler-utils not installed\e[0m" && exit 1;;
esac
case "$(file -bL --mime-type "$1")" in
  text/*) batorcat "$1" "$2" && exit 0;;
esac
echo -e "\e[31mNo previewer configured for $(xdg-mime query filetype "$1")\e[0m"
mediainfo "$1" && exit 0
exit 1