# arg1: package version
post_install() {
    cat <<EOF
You may configure healthchecks via /var/lib/healthchecks/local_settings.py.
Consult the documentation at https://github.com/healthchecks/healthchecks.

Before running healthchecks, create a superuser with the command:
  sudo hc-manage createsuperuser

Some important settings you may need to modify include:
- SITE_ROOT,PING_ENDPOINT: server address/port
- PING_EMAIL_DOMAIN: domain where healthchecks will receive alert e-mails
- SITE_NAME: name displayed on the healthchecks site
- Email settings: EMAIL_HOST,EMAIL_PORT,EMAIL_HOST_USER,EMAIL_HOST_PASSWORD,EMAIL_USE_TLS,DEFAULT_FROM_EMAIL,
                  SERVER_EMAIL,ADMINS
- SECRET_KEY: Django cryptographic setting
- RP_ID: U2F two-factor authentication

A sample nginx config file is included if you wish to proxy healthchecks.
The healthchecks database was created at /var/lib/healthchecks/hc.sqlite.

To run healthchecks, enable and start its systemd service and its weekly cleanup timer:

systemctl enable --now healthchecks
systemctl enable --now healthchecks-clean-db.timer

These processes will be run by the healthchecks user.
EOF
    cd /usr/share/webapps/healthchecks

    if [[ -f /var/lib/healthchecks/hc.sqlite ]]; then
	echo "Existing healthchecks database detected, migrating it to the latest format."
	ln -s /var/lib/healthchecks/hc.sqlite
	hc-manage makemigrations > /dev/null
	hc-manage migrate > /dev/null
    else
	echo "Creating healthchecks database."
	hc-manage makemigrations > /dev/null
	hc-manage migrate > /dev/null
	mv hc.sqlite "$pkgdir"/var/lib/healthchecks
	ln -s /var/lib/healthchecks/hc.sqlite
    fi
}

# arg1: new package version
# arg2: old package version
post_upgrade() {
    cat <<EOF
    NOTE: The healthchecks database format may have changed!  Re-starting the healthchecks service
    will migrate the database to the new format (if any).
EOF
}

# arg1: old package version
post_remove() {
    # cleanup untracked files in webapps
    rm -rf /usr/share/webapps/healthchecks
}