#!/usr/bin/env bash

file="$1"

print_repeated() {
  local char="$1"
  local lines="$2"
  local columns="$3"
  local linebreak="$4"
  for i in `seq 1 $lines`
  do
    for j in `seq 1 $columns`
    do
      echo -n "$char"
    done
    echo -en "$linebreak"
  done
}
mime="$(file -b --mime-type $file)"
type="$(echo $mime | cut -d/ -f1)"

if [ "$type" = "image" ] || [ "$mime" = "application/pdf" ]
then
  if [ "$TERM" = "xterm-kitty" ] || [ "$TERM" = "xterm-ghostty" ]
  then
    exec kitten icat --clear --transfer-mode=memory --stdin=no --place=$(($FZF_PREVIEW_COLUMNS))x$(($FZF_PREVIEW_LINES-1))@$(($COLUMNS/2))x2 "$file"
  else
    which viu >/dev/null && exec viu -s -w $FZF_PREVIEW_COLUMNS "$file"
    if [ "$mime" = "image/svg+xml" ]
    then
      exec batcat --color=always -pp "$file"
    else
      print_repeated "╱" $(($FZF_PREVIEW_LINES/2-2)) $FZF_PREVIEW_COLUMNS "\n"
      print_repeated "╱" 1 $(($FZF_PREVIEW_COLUMNS/2-15)) ""
      print_repeated " " 1 30 ""
      print_repeated "╱" 1 $(($FZF_PREVIEW_COLUMNS/2-15)) "\n"
      print_repeated "╱" 1 $(($FZF_PREVIEW_COLUMNS/2-15)) ""
      echo -n "  Binary cannot be previewed  "
      print_repeated "╱" 1 $(($FZF_PREVIEW_COLUMNS/2-15)) "\n"
      print_repeated "╱" 1 $(($FZF_PREVIEW_COLUMNS/2-15)) ""
      print_repeated " " 1 30 ""
      print_repeated "╱" 1 $(($FZF_PREVIEW_COLUMNS/2-15)) "\n"
      print_repeated "╱" $(($FZF_PREVIEW_LINES/2-1)) $FZF_PREVIEW_COLUMNS "\n"
    fi
  fi
else
  kitten icat --clear --transfer-mode=memory --stdin=no
  kitten icat --clear --transfer-mode=memory --stdin=no
  exec batcat --color=always -pp "$file"
fi