#!/bin/bash

set -eE -o pipefail
trap 'echo "$0:$LINENO:error: \"$BASH_COMMAND\" returned $?" >&2' ERR

[[ $EUID == 0 ]] || exec sudo -E "$BASH_SOURCE" "$@"

shopt -s extglob nullglob

echo '[Default Applications]' >/etc/xdg/defaults.list
sed -r '/^MimeType=/!d;s/^MimeType=//;s/;/=mpv.desktop\n/g' /usr/share/applications/mpv.desktop >>/etc/xdg/defaults.list

# this is the new one, according to
# https://specifications.freedesktop.org/mime-apps-spec/mime-apps-spec-1.0.html
# https://wiki.debian.org/MIME
# https://standards.freedesktop.org/basedir-spec/basedir-spec-latest.html
cp /etc/xdg/defaults.list /etc/xdg/mimapps.list

for f in /usr/share/applications/!(defaults).list; do
    cp /etc/xdg/defaults.list /etc/xdg/${f##*/}
done

update-desktop-database