#!/bin/sh

file=${1}

HASH=$(stat --printf '%n\0%i\0%F\0%s\0%W\0%Y' -- "$(readlink -f "$file")" \
  | md5sum | cut -f 1 -d " ")-${2}x${3}

CACHEDIR=/tmp/lf/thumbnail/
mkdir -p $CACHEDIR
CACHE=$CACHEDIR/$HASH

image () {
  [ ! -f "$CACHE" ] && \
    chafa -f sixel -s "$2x$3" --animate off --polite on "$1" > "$CACHE"
  cat "$CACHE"
  exit 0
}

case "$(file -Lb --mime-type -- "$file")" in
  image/*)
    image $@
    ;;
  application/json)
    jq '.' "$1" | bat --color always -l json --file-name $file
    ;;
  text/*)
    bat --color always "$file"
    ;;
  application/pdf)
    [ ! -f "$CACHE.jpg" ] && \
      pdftoppm -jpeg -f 1 -singlefile "$file" "$CACHE"
    image "$CACHE.jpg" "$2" "$3" "$4" "$5"
    ;;
  *)
    exiftool "$1"
    ;;
esac

exit

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" ;;
  *.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" - ;;
  *.xls|*.xlsx)
    ssconvert --export-type=Gnumeric_stf:stf_csv "$1" "fd://1"
    ;;
  *.epub)
    [ ! -f "$CACHE" ] && \
      epub-thumbnailer "$1" "$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" "$5"
    ;;
  *.svg)
    [ ! -f "$CACHE.jpg" ] && \
    convert "$1" "$CACHE.jpg"
    image "$CACHE.jpg" "$2" "$3" "$4" "$5"
    ;;
  *)
    cat "$1"
    ;;
  esac
