#!/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

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

ynh_systemd_action --service_name=$app --action="stop" --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

# Remove the log files
ynh_secure_remove --file="/var/log/$app"

# No more needed since systemd
ynh_delete_file_checksum --file="/etc/default/jenkins"

#=================================================
# CREATE DEDICATED USER
#=================================================
ynh_script_progression --message="Making sure dedicated system user exists..."

# Create a dedicated user (if not existing)
ynh_system_user_create --username=$app --home_dir="$final_path"

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

if [ "$upgrade_type" == "UPGRADE_APP" ]
then
	ynh_script_progression --message="Upgrading source files..."
	# Download jenkins deb file and install it.
	ynh_setup_source --dest_dir="../conf"
	ynh_setup_source --source_id="jenkins-plugin-manager" --dest_dir="$final_path"
	chmod 750 "$final_path"
	chmod -R o-rwx "$final_path"
	chown -R $app:$app "$final_path"

	dpkg --install --force-confnew ../conf/jenkins.deb

	#=================================================
	# SETUP APPLICATION
	#=================================================
	ynh_script_progression --message="Setuping application..."

	ynh_replace_string --match_string="Environment=\"JENKINS_PORT=8080\"" --replace_string="Environment=\"JENKINS_PORT=$port\"\nEnvironment=\"JENKINS_PREFIX=$path_url\"" --target_file="/lib/systemd/system/jenkins.service"

	systemctl daemon-reload --quiet

	ynh_systemd_action --service_name=$app --action="restart" --line_match="Started Jenkins Continuous Integration Server" --log_path="systemd"
fi

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

ynh_install_app_dependencies $pkg_dependencies

#=================================================
# 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

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

ynh_systemd_action --service_name=nginx --action=reload

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

jenkins_plugin_manager="ynh_exec_warn_less java -jar $final_path/jenkins-plugin-manager.jar --war /usr/share/java/jenkins.war --plugin-download-directory=$final_path/plugins"
UPDATE_LIST=$($jenkins_plugin_manager --list | grep -o '.*\..*' | grep -oP '^(.*?) ')

for plugin in ${UPDATE_LIST}
do
	$jenkins_plugin_manager --plugins "$plugin" || true
done

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

yunohost service add $app --description="Jenkins Continuous Integration Server"

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

ynh_systemd_action --service_name=$app --action="restart" --line_match="Started Jenkins Continuous Integration Server" --log_path="systemd"

#=================================================
# 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"