#!/usr/bin/env sh

function sixel_compat() {
    case "$TERM" in
        "st-256color")
            echo "y"
            ;;
        *)
            echo ""
            ;;
    esac
}

image() {
    chafa $([ -z "$(sixel_compat)" ] || echo "-f sixel") -s "$2x$3" --animate false "$1"
    exit 1
}

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 "$(file --dereference --brief --mime-type -- "$1")" in
    image/*) 
        image "$1" "$2" "$3" "$4" "$5" "$1" 
        ;;
    application/json|\
    text/*|\
    */xml)
        bat -p --terminal-width "$(($4-2))" -f "$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 "$1")" | sha256sum | cut -d' ' -f1)"
        [ ! -f "$CACHE" ] && ffmpegthumbnailer -i "$1" -o "$CACHE" -s 0
        image "$CACHE" "$2" "$3" "$4" "$5" "$1"
        ;;
    */pdf)
        CACHE="${XDG_CACHE_HOME:-$HOME/.cache}/lf/thumb.$(stat --printf '%n\0%i\0%F\0%s\0%W\0%Y' -- "$(readlink -f "$1")" | sha256sum | cut -d' ' -f1)"
        [ ! -f "$CACHE.jpg" ] && pdftoppm -jpeg -f 1 -singlefile "$1" "$CACHE" && convert "$CACHE.jpg" -negate "$CACHE.jpg"
        image "$CACHE.jpg" "$2" "$3" "$4" "$5" "$1"
        ;;
    application/*zip)
        atool --list -- "$1"
        ;;
    *opendocument*)
        odt2txt "$1"
        ;;
    application/pgp-encrypted) gpg -d -- "$1" ;;
    *) 
        file -ibL "$1" | grep -q text && cat "$1" || file -Lb "$1" 
        ;;
esac

exit 0

