FILE=$1
if [[ ! -f $FILE ]]; then
    LIST=({{ emacsconf_caption_dir }}/assets/stream/emacsconf-[0-9][0-9][0-9][0-9]-$FILE*.webm)
    FILE="${LIST[0]}"
    BY_SLUG=1
fi
shift
SLUG=$(echo "$FILE" | perl -ne 'if (/^emacsconf-[0-9]*-(.*?)--/) { print $1; } else { print; }')
if [[ -f {{ emacsconf_caption_dir }}/assets/overlays/$SLUG-other.png ]]; then
    echo "Found other overlay for $SLUG, copying"
    cp {{ emacsconf_caption_dir }}/assets/overlays/$SLUG-other.png ~/other.png
elif [[ -f {{ emacsconf_caption_dir }}/assets/overlays/$SLUG-video.png ]]; then
    echo "Found video overlay for $SLUG, copying"
    cp {{ emacsconf_caption_dir }}/assets/overlays/$SLUG-video.png ~/other.png
else
    echo "Could not find {{ emacsconf_caption_dir }}/assets/overlays/$SLUG-other.png, please override ~/other.png manually"
    cp {{ emacsconf_caption_dir }}/assets/overlays/blank-other.png ~/other.png
fi
if [[ -f {{ emacsconf_caption_dir }}/assets/overlays/$SLUG-video.png ]]; then
    echo "Found video overlay for $SLUG, copying"
    cp {{ emacsconf_caption_dir }}/assets/overlays/$SLUG-video.png ~/video.png
else
    echo "Could not find {{ emacsconf_caption_dir }}/assets/overlays/$SLUG-video.png, override ~/video.png manually"
    cp {{ emacsconf_caption_dir }}/assets/overlays/blank-video.png ~/video.png
fi