#!/bin/sh

APP=gum
REPO="charmbracelet/gum"

# CREATE DIRECTORIES
if [ -z "$APP" ]; then exit 1; fi
mkdir -p "/opt/$APP/tmp" && cd "/opt/$APP/tmp" || exit 1

# ADD THE REMOVER
echo "#!/bin/sh
rm -f /usr/share/applications/AM-$APP.desktop /usr/local/bin/$APP
rm -R -f /opt/$APP" >> "/opt/$APP/remove"
chmod a+x "/opt/$APP/remove"

# DOWNLOAD AND PREPARE THE APP
# $version is also used for updates

version=$(curl -Ls https://api.github.com/repos/"$REPO"/releases | jq '.' | grep browser_download_url | grep -i nux_x86_64.tar.gz | cut -d '"' -f 4 | head -1)
wget "$version" -O download.tar.gz
echo "$version" >> "/opt/$APP/version"
tar fx ./*tar* && rm -f ./download.tar.gz
cd ..
mv --backup=t ./tmp/* ./
rm -R -f ./tmp

# LINK
ln -s "/opt/$APP/$APP" "/usr/local/bin/$APP"
chmod a+x "/opt/$APP/$APP"

# SCRIPT TO UPDATE THE PROGRAM
cat >> /opt/$APP/AM-updater << 'EOF'
#!/bin/sh
APP=gum
REPO="charmbracelet/gum"
version0=$(cat /opt/$APP/version)
version=$(curl -Ls https://api.github.com/repos/"$REPO"/releases | jq '.' | grep browser_download_url | grep -i nux_x86_64.tar.gz | cut -d '"' -f 4 | head -1)
if [ "$version" = "$version0" ]; then
	echo "Update not needed!"
else
	notify-send "A new version of $APP is available, please wait"
	mkdir "/opt/$APP/tmp" && cd "/opt/$APP/tmp" || exit 1
	wget $version -O download.tar.gz
  tar fx ./*tar*; rm -f -R ./*tar*
	cd ..
  mv --backup=t ./tmp/* ./
	rm ./version
	echo "$version" >> ./version
	rm -R -f ./tmp ./*~
	notify-send "$APP is updated!"
fi
EOF
chmod a+x "/opt/$APP/AM-updater"