set -e
$OUT = "index.html"
$DIR = "${1:-.}"
$RECURSIVE = "0"
# Optional flags
foreach ($arg in ""$@"") {
    case "$arg" in
    --recursive|-r) RECURSIVE=1 ;;
    esac
}
$DIR = "$(realpath "$DIR")"
Write-Host "[*] Building index for: $DIR"
# HTML header
cat > "$OUT" <<EOF
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Index of $(basename "$DIR")</title>
<style>
body { background:#0e0e0e; color:#e0e0e0; font-family:monospace; }
a { color:#6cf; text-decoration:none; }
.grid { display:flex; flex-wrap:wrap; gap:10px; }
.item { width:200px; border:1px solid #333; padding:5px; }
img { max-width:100%; height:auto; }
</style>
</head>
<body>
<h2>Index of $(basename "$DIR")</h2>
<div class="grid">
EOF
# File listing
if ([bool]$"$RECURSIVE" -eq 1) {
    $FILES = "$(find "$DIR" -type f)"
else {
    $FILES = "$(find "$DIR" -maxdepth 1 -type f)"
}
while IFS= read -r file; do
$rel = "${file#$DIR/}"
$ext = "${file##*.}"
$ext = "$(echo "$ext" | tr '[:upper:]' '[:lower:]')"
Write-Host "<div class='item'>" >> "$OUT"
case "$ext" in
jpg|jpeg|png|gif|webp)
Write-Host "<a href=\"$rel\"><img src=\"$rel\"></a><br>$rel" >> "$OUT"
;;
mp4|mkv|webm)
Write-Host "<video src=\"$rel\" controls width=180></video><br>$rel" >> "$OUT"
;;
mp3|wav|ogg)
Write-Host "<audio src=\"$rel\" controls></audio><br>$rel" >> "$OUT"
;;
*)
Write-Host "<a href=\"$rel\">$rel</a>" >> "$OUT"
;;
esac
Write-Host "</div>" >> "$OUT"
done <<< "$FILES"
# Footer
cat >> "$OUT" <<EOF
</div>
</body>
</html>
EOF
Write-Host "[✓] Created $OUT"