#!/bin/sh

set -exu

WIDTH=$2
HEIGHT=$3
image() {
    chafa -f sixel \
          -s "$((${WIDTH}-2))x$((${HEIGHT}-2))" \
          --polite on \
          --animate on "$1"
}

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

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

case "${FILE}" in
    *.bmp|*.jpg|*.jpeg|*.png|*.xpm|*.webp|*.gif|*.jfif)
        image "${FILE}"
        exit 1
        ;;
    *.pdf)
        [ ! -f "${CACHE}.jpg" ] && pdftoppm -jpeg -f 1 -singlefile "${FILE}" "${CACHE}"
        image "${CACHE}.jpg"
        exit 1
        ;;
    *.svg)
        [ ! -f "${CACHE}.jpg" ] && convert "${FILE}" "${CACHE}.jpg"
        image "${CACHE}.jpg"
        exit 1
        ;;
    *.avi|*.mp4|*.wmv|*.dat|*.3gp|*.ogv|*.mkv|*.mpg|*.mpeg|*.vob|*.fl[icv]|*.m2v|*.mov|*.webm|*.ts|*.mts|*.m4v|*.r[am]|*.qt|*.divx)
        [ ! -f "${CACHE}.jpg" ] && ffmpegthumbnailer -i "${FILE}" -o "${CACHE}.jpg" -s 0 -q 5
        image "${CACHE}.jpg"
        exit 1
        ;;
    *.wav|*.mp3|*.flac|*.m4a|*.wma|*.ape|*.ac3|*.og[agx]|*.spx|*.opus|*.as[fx]|*.mka)
        exiftool "${FILE}"
        ;;
    *.epub)
        [ ! -f "${CACHE}" ] && epub-thumbnailer "${FILE}" "${CACHE}" 1024
        image "${CACHE}"
        ;;
    *.cbz|*.cbr|*.cbt)
        [ ! -f "${CACHE}" ] && comicthumb "${FILE}" "${CACHE}" 1024
        image "${CACHE}"
        ;;
    *.tgz|*.tar.gz)
        tar tzf "${FILE}"
        ;;
    *.tar.bz2|*.tbz2)
        tar tjf "${FILE}"
        ;;
    *.tar.txz|*.txz)
        xz --list "${FILE}"
        ;;
    *.tar)
        tar tf "${FILE}"
        ;;
    *.zip|*.jar|*.war|*.ear|*.oxt)
        unzip -l "${FILE}"
        ;;
    *.rar)
        unrar l "${FILE}"
        ;;
    *.md)
        glow -s dark "${FILE}"
        ;;
    *.7z)
        7z l "${FILE}"
        ;;
    *.[1-8])
        man "${FILE}" | col -b
        ;;
    *.o)
        nm "${FILE}"
        ;;
    *.torrent)
        transmission-show "${FILE}"
        ;;
    *.iso)
        iso-info --no-header -l "${FILE}"
        ;;
    *.odt|*.ods|*.odp|*.sxw)
        odt2txt "${FILE}"
        ;;
    *.doc)
        catdoc "${FILE}"
        ;;
    *.docx)
        docx2txt "${FILE}" -
        ;;
    *.xml|*.html)
        w3m -dump "${FILE}"
        ;;
    *.xls|*.xlsx)
        ssconvert --export-type=Gnumeric_stf:stf_csv "${FILE}" "fd://1" | batorcat --language=csv
        ;;
    *.ino)
        batorcat --language=cpp "${FILE}"
        ;;
    *)
        cat "${FILE}"
        ;;
esac

exit 0