dotfiles/dot-config/lf/scope

#!/bin/sh

# File preview handler for lf.

set -C -f
IFS="$(printf '%b_' '\n')"
IFS="${IFS%_}"

# Define the draw function using Kitty's native protocol
draw() {
    # $1=path, $2=width, $3=height, $4=x, $5=y
    # Mapping: width(2) x height(3) @ x(4) x y(5)
    kitten icat --stdin no --transfer-mode memory --place "${2}x${3}@${4}x${5}" "$1" </dev/null >/dev/tty
    exit 1 # this prevents lf from caching the image (which Kitty doesn't need)
}

case "$(file --dereference --brief --mime-type -- "$1")" in
image/*) draw "$1" "$2" "$3" "$4" "$5" ;;
text/html) lynx -width="$4" -display_charset=utf-8 -dump "$1" ;;
text/troff) man ./ "$1" | col -b ;;
text/* | */xml | application/json) bat --terminal-width "$4" -f "$1" ;;
application/zip) zipinfo -2htz "$1" ;;
application/vnd*) pptx2text -v "$1" ;;
    #application/zip) atool --list -- "$1" ;;
audio/* | application/octet-stream) mediainfo "$1" || exit 1 ;;
video/*)
    CACHE="${XDG_CACHE_HOME:-$HOME/.cache}/lf/thumb.$(stat --printf '%n\0%i\0%F\0%s\0%W\0%Y' -- "$(readlink -f "$1")" | sha256sum | awk '{print $1}')"
    [ ! -f "$CACHE" ] && ffmpegthumbnailer -i "$1" -o "$CACHE" -s 0
    draw "$CACHE" "$2" "$3" "$4" "$5"
    ;;
*/pdf)
    CACHE="${XDG_CACHE_HOME:-$HOME/.cache}/lf/thumb.$(stat --printf '%n\0%i\0%F\0%s\0%W\0%Y' -- "$(readlink -f "$1")" | sha256sum | awk '{print $1}')"
    [ ! -f "$CACHE.jpg" ] && pdftoppm -jpeg -f 1 -singlefile "$1" "$CACHE"
    draw "$CACHE.jpg" "$2" "$3" "$4" "$5"
    ;;
*opendocument*) odt2txt "$1" ;;
application/pgp-encrypted) gpg -d -- "$1" ;;
*)
    # Default text preview for other files
    bat --color=always --style=plain "$1" || cat "$1"
    ;;
esac
exit 0