post_install() {
    username="akkoma"
    home_dir="/opt/${username}"
    uploads_dir="/var/lib/${username}/uploads"
    static_dir="/var/lib/${username}/static"
    config_dir="/etc/${username}"
    tmp_psql="/tmp/setup_otp_db.psql"

    instance_gen_params="instance gen\
 --output \"${config_dir}/config.exs\"\
 --output-psql \"$tmp_psql\"\
 --uploads-dir \"$uploads_dir\"\
 --static-dir \"$static_dir\"\
 --dbname \"$username\"\
 --dbuser \"$username\"\
"

    printf "\n"
    printf "A local installation of postgresql is strongly recommended unless you know what you are doing. Use:\n    $ sudo pacman -S postgresql\nto install postgresql locally.\n\n"
	printf "If postgresql is installed locally, the user should run the following commands to initialize akkoma:\n"

	printf ">>> sudo -Hu $username ${home_dir}/bin/pleroma_ctl ${instance_gen_params}\n"
	printf ">>> sudo -Hu postgres psql -f \"${tmp_psql}\"\n"
	printf ">>> sudo -Hu $username ${home_dir}/bin/pleroma_ctl migrate\n\n"

    printf "If the user is using a remote postgresql instance, they should ensure \"${tmp_psql}\" be executed remotely after the first command:\n"
    printf ">>> sudo -Hu $username -s /bin/bash ${home_dir}/bin/pleroma_ctl ${instance_gen_params}\n"
    printf ">>> # Now execute \"$tmp_psql\" remotely.\n"
	printf ">>> sudo -Hu $username -s /bin/bash ${home_dir}/bin/pleroma_ctl migrate\n\n"

    printf "After initializing akkoma, you may start it with:\n"
    printf ">>> sudo systemctl start akkoma\n\n"

	printf "Check https://docs-develop.akkoma.social/backend/installation/otp_en/#post-installation for post-installation steps.\n"
}

pre_upgrade() {
    systemctl stop akkoma.service
}

post_upgrade() {
    username="akkoma"
    home_dir="/opt/${username}"
    migration_needed="false"
#
#    printf "Procedures to upgrade from version $2 to version $1:\n\n"
#    case "$2" in
#    "2.4.0-1")
#        ;&
#    esac

    if [ "$migration_needed" = "true" ]; then
        printf "\nYou will need to migrate your database as the above upgrade notes state.\n"
        printf "Ensure your postgresql database, whether local or remote, is up, and run the following command:\n"
        printf ">>> cd \"$home_dir\"\n"
        printf ">>> sudo -Hu \"$username\" ./bin/pleroma_ctl migrate\n"
    fi

    printf "\nAfter all these, you may start akkoma with:\n"
    printf ">>> sudo systemctl start akkoma\n"
}