#!/bin/sh

image() {
	if [ -n "$DISPLAY" ] && [ -z "$WAYLAND_DISPLAY" ]; then
		printf '{"action": "add", "identifier": "PREVIEW", "x": "%s", "y": "%s", "width": "%s", "height": "%s", "scaler": "contain", "path": "%s"}\n' "$4" "$5" "$(($2 - 1))" "$(($3 - 1))" "$1" >"$FIFO_UEBERZUG"
		exit 1
	else
		chafa "$1" -s "$4x"
	fi
}

batorcat() {
	file="$1"
	shift
	if command -v bat >/dev/null 2>&1; then
		bat --color=always --style=plain --pager=never "$file" "$@"
	else
		cat "$file"
	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 "$(printf "%s\n" "$(readlink -f "$1")" | awk '{print tolower($0)}')" in
*.tgz | *.tar.gz) tar tzf "$1" ;;
*.tar.bz2 | *.tbz2) tar tjf "$1" ;;
*.tar.txz | *.txz) xz --list "$1" ;;
*.tar) tar tf "$1" ;;
*.zip | *.jar | *.war | *.ear | *.oxt) unzip -l "$1" ;;
*.rar) unrar l "$1" ;;
*.md) glow -s dark "$1" ;;
*.7z) 7z l "$1" ;;
*.[1-8]) man "$1" | col -b ;;
*.o) nm "$1" ;;
*.torrent) transmission-show "$1" ;;
*.iso) iso-info --no-header -l "$1" ;;
*.odt | *.ods | *.odp | *.sxw) odt2txt "$1" ;;
*.doc) catdoc "$1" ;;
*.docx) docx2txt "$1" - ;;
*.xml | *.html) w3m -dump "$1" ;;
*.xls | *.xlsx)
	ssconvert --export-type=Gnumeric_stf:stf_csv "$1" "fd://1" | batorcat --language=csv
	;;
*.wav | *.mp3 | *.flac | *.m4a | *.wma | *.ape | *.ac3 | *.og[agx] | *.spx | *.opus | *.as[fx] | *.mka)
	exiftool "$1"
	;;
*.pdf)
	[ ! -f "${CACHE}.jpg" ] &&
		pdftoppm -jpeg -f 1 -singlefile "$1" "$CACHE"
	image "${CACHE}.jpg" "$2" "$3" "$4" "$5"
	;;
*.epub)
	[ ! -f "$CACHE" ] &&
		epub-thumbnailer "$1" "$CACHE" 1024
	image "$CACHE" "$2" "$3" "$4" "$5"
	;;
*.cbz | *.cbr | *.cbt)
	[ ! -f "$CACHE" ] &&
		comicthumb "$1" "$CACHE" 1024
	image "$CACHE" "$2" "$3" "$4" "$5"
	;;
*.avi | *.mp4 | *.wmv | *.dat | *.3gp | *.ogv | *.mkv | *.mpg | *.mpeg | *.vob | *.fl[icv] | *.m2v | *.mov | *.webm | *.ts | *.mts | *.m4v | *.r[am] | *.qt | *.divx)
	[ ! -f "${CACHE}.jpg" ] &&
		ffmpegthumbnailer -i "$1" -o "${CACHE}.jpg" -s 0 -q 5
	image "${CACHE}.jpg" "$2" "$3" "$4" "$5"
	;;
*.bmp | *.jpg | *.jpeg | *.png | *.xpm | *.webp | *.gif | *.jfif)
	image "$1" "$2" "$3" "$4" "$5"
	;;
*.svg)
	[ ! -f "${CACHE}.jpg" ] &&
		convert "$1" "${CACHE}.jpg"
	image "${CACHE}.jpg" "$2" "$3" "$4" "$5"
	;;
*.ino)
	batorcat --language=cpp "$1"
	;;
*)
	batorcat "$1"
	;;
esac
exit 0