#!/bin/bash

#=================================================
# GENERIC START
#=================================================
# IMPORT GENERIC HELPERS
#=================================================

source _common.sh
source /usr/share/yunohost/helpers

#=================================================
# LOAD SETTINGS
#=================================================
ynh_script_progression --message="Loading installation settings..." --weight=1

app=$YNH_APP_INSTANCE_NAME

domain=$(ynh_app_setting_get --app=$app --key=domain)
path_url=$(ynh_app_setting_get --app=$app --key=path)
final_path=$(ynh_app_setting_get --app=$app --key=final_path)
port=$(ynh_app_setting_get --app=$app --key=port)
password=$(ynh_app_setting_get --app=$app --key=password)

#=================================================
# CHECK VERSION
#=================================================
ynh_script_progression --message="Checking version..."

upgrade_type=$(ynh_check_app_version_changed)

#=================================================
# BACKUP BEFORE UPGRADE THEN ACTIVE TRAP
#=================================================
ynh_script_progression --message="Backing up the app before upgrading (may take a while)..." --weight=15

# Backup the current version of the app
ynh_backup_before_upgrade
ynh_clean_setup () {
	# Restore it if the upgrade fails
	ynh_restore_upgradebackup
}
# Exit if an error occurs during the execution of the script
ynh_abort_if_errors

#=================================================
# NGINX CONFIGURATION
#=================================================
ynh_script_progression --message="Upgrading NGINX web server configuration..." --weight=2

# Create a dedicated NGINX config
ynh_add_nginx_config

#=================================================
# UPGRADE DEPENDENCIES
#=================================================
ynh_script_progression --message="Upgrading dependencies..." --weight=15

ynh_install_app_dependencies $pkg_dependencies

#=================================================
# SPECIFIC UPGRADE
#=================================================
# UPGRADING COUCHDB
#=================================================

if [ "$upgrade_type" == "UPGRADE_APP" ]
then
	ynh_script_progression --message="Upgrading CouchDB..." --weight=50

	COUCHDB_PASSWORD=$password
	echo "couchdb couchdb/mode select standalone
	couchdb couchdb/mode seen true
	couchdb couchdb/bindaddress string 127.0.0.1
	couchdb couchdb/bindaddress seen true
	couchdb couchdb/adminpass password ${COUCHDB_PASSWORD}
	couchdb couchdb/adminpass seen true
	couchdb couchdb/adminpass_again password ${COUCHDB_PASSWORD}
	couchdb couchdb/adminpass_again seen true" | debconf-set-selections
	DEBIAN_FRONTEND=noninteractive # apt-get install -y --force-yes couchdb

	apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 390EF70BB1EA12B2773962950EE62FB37A00258D 2>/dev/null

	ynh_install_extra_app_dependencies --repo="https://apache.jfrog.io/artifactory/couchdb-deb/ $(lsb_release -c -s) main" --package="couchdb"
fi

#=================================================
# UPDATE A CONFIG FILE
#=================================================
ynh_script_progression --message="Updating a configuration file..."

ynh_add_config --template="../conf/couch_ynh.ini" --destination="$final_path/etc/local.d/couch_ynh.ini"

chmod 750 "$final_path"
chmod -R o-rwx "$final_path"
chown -R $app:$app "$final_path"

#=================================================
# GENERIC FINALIZATION
#=================================================
# SETUP LOGROTATE
#=================================================
ynh_script_progression --message="Upgrading logrotate configuration..." --weight=1

# Use logrotate to manage app-specific logfile(s)
ynh_use_logrotate --non-append

#=================================================
# INTEGRATE SERVICE IN YUNOHOST
#=================================================
ynh_script_progression --message="Integrating service in YunoHost..." --weight=2

yunohost service add $app --description="Open-source document-oriented NoSQL database" --log="/var/log/$app/$app.log" --needs_exposed_ports "$port"

#=================================================
# UPGRADE FAIL2BAN
#=================================================
ynh_script_progression --message="Reconfiguring Fail2Ban..." --weight=3

# Create a dedicated Fail2Ban config
ynh_add_fail2ban_config --logpath="/var/log/couchdb/couchdb.log" --failregex="[warning] .*couch_httpd_auth: Authentication failed for user .+ from <HOST>" --max_retry=5

#=================================================
# RELOAD NGINX
#=================================================
ynh_script_progression --message="Reloading NGINX web server..." --weight=1

ynh_systemd_action --service_name=nginx --action=reload

#=================================================
# END OF SCRIPT
#=================================================

ynh_script_progression --message="Upgrade of $app completed" --last