#!/bin/bash

######## Actually we cant use common script in backup / restore script see this issue for more informations : https://dev.yunohost.org/issues/621
# # Import common cmd
# source ./_common.sh
#

######## We implement manually this fonctions 

## Adapt md5sum while you update app
md5sum="7314ad6fcd014a34c2e4e8a95455bcaa"
monitorix_version="3.9.0"

init_script() {
    # Exit on command errors and treat unset variables as an error
    set -eu

    # Source YunoHost helpers
    source /usr/share/yunohost/helpers

    # Retrieve arguments
    app=$YNH_APP_INSTANCE_NAME
}

get_source() {

    wget -q -O '/tmp/monitorix.deb' "http://www.monitorix.org/monitorix_${monitorix_version}-izzy1_all.deb"

    if [[ ! -e '/tmp/monitorix.deb' ]] || [[ $(md5sum '/tmp/monitorix.deb' | cut -d' ' -f1) != $md5sum ]]
    then
        ynh_die "Error : can't get monitorix debian package"
    fi
}

CHECK_VAR () {	# Vérifie que la variable n'est pas vide.
# $1 = Variable à vérifier
# $2 = Texte à afficher en cas d'erreur
	test -n "$1" || (echo "$2" >&2 && false)
}

CHECK_PATH () {	# Vérifie la présence du / en début de path. Et son absence à la fin.
	if [ "${path:0:1}" != "/" ]; then    # Si le premier caractère n'est pas un /
		path="/$path"    # Ajoute un / en début de path
	fi
	if [ "${path:${#path}-1}" == "/" ] && [ ${#path} -gt 1 ]; then    # Si le dernier caractère est un / et que ce n'est pas le seul caractère.
		path="${path:0:${#path}-1}"	# Supprime le dernier caractère
	fi
}

CHECK_DOMAINPATH () {	# Vérifie la disponibilité du path et du domaine.
	sudo yunohost app checkurl $domain$path -a $app
}

CHECK_FINALPATH () {	# Vérifie que le dossier de destination n'est pas déjà utilisé.
	final_path=/var/www/$app
	if [ -e "$final_path" ]
	then
		echo "This path already contains a folder" >&2
		false
	fi
}

### REMOVE SCRIPT

REMOVE_NGINX_CONF () {	# Suppression de la configuration nginx
	if [ -e "/etc/nginx/conf.d/$domain.d/$app.conf" ]; then	# Delete nginx config
		echo "Delete nginx config"
		sudo rm "/etc/nginx/conf.d/$domain.d/$app.conf"
		sudo service nginx reload
	fi
}


######## End of common fonctions

# Init script
init_script

# Note: each files and directories you've saved using the ynh_backup helper
# will be located in the current directory, regarding the last argument.

# Retrieve old app settings
domain=$(ynh_app_setting_get "$app" domain)
path=$(ynh_app_setting_get "$app" path)

# Correct path if it is not correct
CHECK_PATH

# Check domain/path availability
sudo yunohost app checkurl "${domain}${path}" -a "$app" \
    || ynh_die "Path not available: ${domain}${path}"

# Download package
get_source

# Install package    
ynh_package_update
ynh_package_install rrdtool perl libwww-perl libmailtools-perl libmime-lite-perl librrds-perl libdbi-perl libxml-simple-perl libhttp-server-simple-perl libconfig-general-perl
sudo dpkg -i /tmp/monitorix.deb
sudo rm -rf /etc/monitorix/conf.d/00-debian.conf
ynh_package_install -f

# # Create and restore the database
dbname=$app
dbuser=$app
dbpass=$(ynh_app_setting_get "$app" mysqlpwd)
ynh_mysql_create_db "$dbname" "$dbuser" "$dbpass"
ynh_mysql_connect_as "$dbuser" "$dbpass" "$dbname" < ./dump.sql

# Restore NGINX configuration
sudo cp -a ./nginx.conf "/etc/nginx/conf.d/${domain}.d/${app}.conf"
sudo cp -a ./monitorix_status.conf "/etc/nginx/conf.d/monitorix_status.conf"

# Restore Monitorix configuration
sudo cp -a ./config/. "/etc/monitorix/."
sudo cp -a ./data/. "/var/lib/monitorix/."


# Restart webserver
sudo service nginx reload
sudo service monitorix restart