#!/bin/bash

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

source _common.sh
source ynh_send_readme_to_admin__2
source /usr/share/yunohost/helpers

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

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)
overwrite_nginx=$(ynh_app_setting_get --app=$app --key=overwrite_nginx)

#=================================================
# 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)..."

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

ynh_backup_if_checksum_is_different --file="/etc/default/jenkins"
ynh_backup_if_checksum_is_different --file="$final_path/config.xml"

#=================================================
# STANDARD UPGRADE STEPS
#=================================================
# STOP SYSTEMD SERVICE
#=================================================
ynh_script_progression --message="Stopping a systemd service..."

ynh_systemd_action --service_name=$app --action="stop" --line_match="Stopped LSB" --log_path="systemd"

#=================================================
# ENSURE DOWNWARD COMPATIBILITY
#=================================================
ynh_script_progression --message="Ensuring downward compatibility..."

# If overwrite_nginx doesn't exist, create it
if [ -z "$overwrite_nginx" ]; then
	overwrite_nginx=1
	ynh_app_setting_set --app=$app --key=overwrite_nginx --value=$overwrite_nginx
fi

# Remove the apt list entry for jenkins
if [ -e "/etc/apt/sources.list.d/jenkins.list" ]
then
	ynh_secure_remove --file=/etc/apt/sources.list.d/jenkins.list
	# Get APT key id for jenkins
	apt_key=$(apt-key list | grep -B1 "Kohsuke Kawaguchi" | grep pub | cut -d'/' -f2 | cut -d' ' -f1)
	# Delete the APT key
	apt-key del $apt_key
	apt-get update
fi

# Cleaning legacy permissions
if ynh_legacy_permissions_exists; then
	ynh_legacy_permissions_delete_all

	ynh_app_setting_delete --app=$app --key=is_public
fi

# Create a permission if needed
if ! ynh_permission_exists --permission="github-webhook"; then
	ynh_permission_create --permission="github-webhook" --url "/github-webhook" --allowed="visitors" --show_tile="false" --protected="true"
fi

#=================================================
# DOWNLOAD, CHECK AND UNPACK SOURCE
#=================================================

if [ "$upgrade_type" == "UPGRADE_APP" ]
then
	ynh_script_progression --message="Upgrading source files..."
	# Download jenkins deb file and install it.
	ynh_setup_source --dest_dir="../conf"
	dpkg --install --force-confnew ../conf/jenkins.deb

	#=================================================
	# FIX JENKINS SETUP
	#=================================================

	if [ "$path_url" != "/" ];
	then
		# Add the path, in case of sub-path installation, into jenkins' boot options
		if ! grep --quiet "prefix=$path_url" /etc/default/jenkins
		then
			sed -i "$ s@--httpPort=\$HTTP_PORT@& --prefix=$path_url@g" /etc/default/jenkins
		fi
	fi
fi

#=================================================
# NGINX CONFIGURATION
#=================================================

# Overwrite the nginx configuration only if it's allowed
if [ $overwrite_nginx -eq 1 ]
then
	ynh_script_progression --message="Upgrading NGINX web server configuration..."

	# Create a dedicated NGINX config
	ynh_add_nginx_config
fi

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

ynh_install_app_dependencies $pkg_dependencies

#=================================================
# SPECIFIC UPGRADE
#=================================================
# RELOAD NGINX
#=================================================
ynh_script_progression --message="Reloading NGINX web server..."

ynh_systemd_action --service_name=nginx --action=reload

#=================================================
# CHECK JENKINS STARTING
#=================================================
ynh_script_progression --message="Restarting Jenkins..."

# Wait for Jenkins to be fully started
ynh_systemd_action --service_name=$app --action="restart" --line_match="Jenkins is fully up and running" --log_path="/var/log/$app/$app.log" --timeout="3600"

#=================================================
# UPGRADE JENKINS-CLI.JAR
#=================================================
ynh_script_progression --message="Upgrading jenkins-cli.jar..."

wget -nv --no-check-certificate https://127.0.0.1${path_url%/}/jnlpJars/jenkins-cli.jar -O $final_path/jenkins-cli.jar.temp 2>&1
mv -f $final_path/jenkins-cli.jar.temp $final_path/jenkins-cli.jar

#=================================================
# UPGRADE PLUGINS
#=================================================
ynh_script_progression --message="Upgrading plugins..."

cp $final_path/config.xml $final_path/config.xml.bak

ynh_replace_string --match_string="<useSecurity>true</useSecurity>" --replace_string="<useSecurity>false</useSecurity>" --target_file=$final_path/config.xml
ynh_systemd_action --service_name=$app --action="restart" --line_match="Jenkins is fully up and running" --log_path="/var/log/$app/$app.log" --timeout="3600"

jenkins_cli="ynh_exec_warn_less java -jar $final_path/jenkins-cli.jar -s http://127.0.0.1:${port}${path_url%/}"
UPDATE_LIST=$($jenkins_cli list-plugins | grep -oP '^(.*?) ')

for plugin in ${UPDATE_LIST}
do
	$jenkins_cli install-plugin "$plugin" || true
done

mv $final_path/config.xml.bak $final_path/config.xml

# Calculate and store the config file checksum into the app settings
ynh_store_file_checksum --file="/etc/default/jenkins"
ynh_store_file_checksum --file="$final_path/config.xml"

#=================================================
# GENERIC FINALIZATION
#=================================================
# INTEGRATE SERVICE IN YUNOHOST
#=================================================
ynh_script_progression --message="Integrating service in YunoHost..."

yunohost service add $app --description="Extendable continuous integration server" --log="/var/log/$app/$app.log"

#=================================================
# START SYSTEMD SERVICE
#=================================================
ynh_script_progression --message="Starting a systemd service..."

ynh_systemd_action --service_name=$app --action="restart" --line_match="Jenkins is fully up and running" --log_path="/var/log/$app/$app.log"

#=================================================
# SEND A README FOR THE ADMIN
#=================================================

# Get main domain and buid the url of the admin panel of the app.
admin_panel="https://$(grep portal_domain /etc/ssowat/conf.json | cut -d'"' -f4)/yunohost/admin/#/apps/$app"

echo "You can configure this app easily by using the experimental __URL_TAG1__config-panel feature__URL_TAG2__$admin_panel/config-panel__URL_TAG3__.
You can also find some specific actions for this app by using the experimental __URL_TAG1__action feature__URL_TAG2__$admin_panel/actions__URL_TAG3__.

If you're facing an issue or want to improve this app, please open a new issue in this __URL_TAG1__project__URL_TAG2__https://github.com/YunoHost-Apps/jenkins_ynh__URL_TAG3__." > mail_to_send

ynh_send_readme_to_admin --app_message="mail_to_send" --recipients="root" --type=upgrade

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

ynh_systemd_action --service_name=nginx --action=reload

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

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