#!/bin/sh

if [ -d "$1" ]; then
	if [ -x /bin/eza ] || [ -x /usr/bin/eza ]; then
		eza -alhF --group-directories-first --color=always --icons -- "$1"
	else
		ls -lhAF --group-directories-first --color -- "$1"
	fi
	readme="$(find "$1" -maxdepth 1 -name "README.*" | head -1)"
	[ -n "$readme" ] && preview "$readme"
	exit
fi

alias highlight='highlight --out-format=ansi'

case "$1" in
	'') echo "preview: file name required" >&2; exit 1 ;;
	*.html) w3m -dump "$1" ;;
	*.md) glow -s dark --width="${FZF_PREVIEW_COLUMNS:-"$(tput cols)"}" "$1" ;;
	# *.vim) highlight --syntax=vim --replace-tabs=2 -- "$1" ;;
	*.js|*.vim|*.lua) highlight -- "$1" ;;
	*.txt|*.description|*.srt) cat -- "$1" ;;
	*.png|*.jpg|*.jpeg|*.webp|*.mp3|*.ogg|*.mp4|*.mkv|*.webm) mediainfo -- "$1" ;;
	*.info.json) jq -C . "$1" ;;
	*.json|*.ipynb) highlight --syntax=json -- "$1" ;;
	*.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" ;;
	*.7z) 7z l "$1" ;;
	*.zst) zstdcat "$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" - ;;
	# *.csv) sed s/,/\\n/g "$1" ;;

	*)
		filetype=$(file --dereference --brief --mime-type "$1")
		case $filetype in
			*html) w3m -dump "$1" ;;
			text/markdown) glow -s dark -w "$(tput cols)" "$1" ;;
			application/json) highlight --syntax=json --replace-tabs=2 -- "$1" ;;
			text/*) highlight --force -- "$1" ;;
			audio/*|video/*|image/*) mediainfo -- "$1" ;;
			*xz) xz --list "$1" ;;
			*zip|*tar*|*7z*|*bzip2) atool --list -- "$1" ;;
			*opendocument*) odt2txt "$1" ;;
			application/pgp-encrypted) gpg -d -- "$1" ;;
			*) file -b "$1" ;;
		esac
		;;

esac