#!/bin/bash

#=================================================
# GENERIC STARTING
#=================================================
# IMPORT GENERIC HELPERS
#=================================================

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

#=================================================
# RETRIEVE ARGUMENTS
#=================================================

old_domain=$YNH_APP_OLD_DOMAIN
old_path=$YNH_APP_OLD_PATH

new_domain=$YNH_APP_NEW_DOMAIN
new_path=$YNH_APP_NEW_PATH

app=$YNH_APP_INSTANCE_NAME

#=================================================
# CHECK THE SYNTAX OF THE PATHS
#=================================================

test -n "$old_path" || old_path="/"
test -n "$new_path" || new_path="/"
new_path=$(ynh_normalize_url_path $new_path)
old_path=$(ynh_normalize_url_path $old_path)

#=================================================
# CHECK WHICH PARTS SHOULD BE CHANGED
#=================================================

change_domain=0
if [ "$old_domain" != "$new_domain" ]
then
	change_domain=1
fi

change_path=0
if [ "$old_path" != "$new_path" ]
then
	change_path=1
fi

#=================================================
# BACKUP BEFORE UPGRADE THEN ACTIVE TRAP
#=================================================

ynh_clean_setup () {
	SUPPRESS_WARNING kill -s 15 $PID_TAIL	# Arrête l'exécution de tail.
	ynh_secure_remove "$tempfile"
}
# Exit if an error occurs during the execution of the script
ynh_abort_if_errors

#=================================================
# STANDARD MODIFICATIONS
#=================================================
# MODIFY URL IN NGINX CONF
#=================================================

nginx_conf_path=/etc/nginx/conf.d/$old_domain.d/$app.conf

# Change the path in the nginx config file
if [ $change_path -eq 1 ]
then
	# Make a backup of the original nginx config file if modified
	ynh_backup_if_checksum_is_different "$nginx_conf_path"

	ynh_replace_string "location $old_path" "location $new_path" "$nginx_conf_path"
	ynh_replace_string "\(proxy_redirect.*\)$old_domain$old_path" "\1$old_domain$new_path" "$nginx_conf_path"

	# Calculate and store the nginx config file checksum
	ynh_store_file_checksum "$nginx_conf_path"
fi

# Change the domain for nginx
if [ $change_domain -eq 1 ]
then
	# Delete file checksum for the old conf file location
	ynh_delete_file_checksum "$nginx_conf_path"

	ynh_replace_string "\(proxy_redirect.*\)$old_domain" "\1$new_domain" "$nginx_conf_path"

	mv $nginx_conf_path /etc/nginx/conf.d/$new_domain.d/$app.conf

	nginx_conf_path=/etc/nginx/conf.d/$new_domain.d/$app.conf
	# Calculate and store the nginx config file checksum
	ynh_store_file_checksum "$nginx_conf_path"
fi

#=================================================
# SPECIFIC MODIFICATIONS
#=================================================
# FIX JENKINS SETUP
#=================================================

if [ $change_path -eq 1 ]
then
	# Ajoute le path en cas d'installation en sous-dossier dans les options de démarrage de Jenkins

	# Change to root
	if [ "$new_path" == "/" ]
	then
		sed -i "s@--prefix=$old_path@@g" /etc/default/jenkins
	# Change to a sub path
	else
		if ! grep --quiet "prefix=$old_path" /etc/default/jenkins
		then
			sed -i "$ s@--httpPort=\$HTTP_PORT@& --prefix=$new_path@g" /etc/default/jenkins
		else
			sed -i "s@--prefix=$old_path@--prefix=$new_path@g" /etc/default/jenkins
		fi
	fi
fi

#=================================================
# RESTART JENKINS IN BACKGROUND
#=================================================

WARNING echo "Redémarrage de jenkins"
tempfile="$(mktemp)"
tail -f -n1 /var/log/$app/$app.log > "$tempfile" &	# Suit le démarrage dans le log
PID_TAIL=$!	# Récupère le PID de la commande tail, qui est passée en arrière plan.
systemctl restart $app

#=================================================
# RELOAD NGINX
#=================================================

systemctl reload nginx

#=================================================
# CHECK JENKINS STARTING
#=================================================

for i in `seq 1 300`
do	# La boucle attend le démarrage de jenkins ou 5 minutes
	if grep -q "Jenkins is fully up and running" "$tempfile"; then
		WARNING echo "Le service $app a démarré correctement."
		break	# Si le log annonce le démarrage de jenkins, sort de la boucle.
	fi
	WARNING echo -n "."
	sleep 1
done
echo ""
QUIET kill -s 15 $PID_TAIL	# Arrête l'exécution de tail.
ynh_secure_remove "$tempfile"