#!/bin/bash

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

# Load common variables for all scripts.
source ../settings/scripts/_variables

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

#=================================================
# MANAGE SCRIPT FAILURE
#=================================================

ynh_clean_setup () {
# Clean installation remainings that are not handled by the remove script.
	ynh_clean_check_starting
}
# Exit if an error occurs during the execution of the script
ynh_abort_if_errors

#=================================================
# LOAD SETTINGS
#=================================================
ynh_script_progression --message="Loading settings.." --weight=3

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)
db_name=$(ynh_app_setting_get --app=$app --key=db_name)
export=$(ynh_app_setting_get --app=$app --key=export)
mypads=$(ynh_app_setting_get --app=$app --key=mypads)
admin=$(ynh_app_setting_get --app=$app --key=admin)
ynh_print_OFF; password=$(ynh_app_setting_get --app=$app --key=password); ynh_print_ON

#=================================================
# CHECK IF THE APP CAN BE RESTORED
#=================================================
ynh_script_progression --message="Validating restoration parameters..."

ynh_webpath_available --domain=$domain --path_url=$path_url \
	|| ynh_die --message="Path not available: ${domain}${path_url}"
test ! -d $final_path \
	|| ynh_die --message="There is already a directory: $final_path "

#=================================================
# ACTIVATE MAINTENANCE MODE
#=================================================
ynh_script_progression --message="Activating maintenance mode..." --weight=2

ynh_maintenance_mode_ON

#=================================================
# STANDARD RESTORE STEPS
#=================================================
# RESTORE THE NGINX CONFIGURATION
#=================================================

ynh_restore_file --origin_path="/etc/nginx/conf.d/$domain.d/$app.conf"

#=================================================
# RESTORE THE APP MAIN DIR
#=================================================
ynh_script_progression --message="Restoring the app main directory..."

ynh_restore_file --origin_path="$final_path"

#=================================================
# RESTORE THE MYSQL DATABASE
#=================================================
ynh_script_progression --message="Restoring the MySQL database..."

db_pwd=$(ynh_app_setting_get --app=$app --key=mysqlpwd)
ynh_mysql_setup_db --db_user=$db_name --db_name=$db_name --db_pwd=$db_pwd
ynh_mysql_connect_as --user=$db_name --password=$db_pwd --database=$db_name < ./db.sql

#=================================================
# RECREATE THE DEDICATED USER
#=================================================
ynh_script_progression --message="Recreating the dedicated system user..." --weight=2

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

#=================================================
# SPECIFIC RESTORE
#=================================================
# HANDLE LOG FILES AND LOGROTATE
#=================================================

mkdir -p /var/log/$app
touch /var/log/$app/etherpad.log
install_log=/var/log/$app/installation.log
touch $install_log
chown $app -R /var/log/$app
chown admin -R $install_log

# Restore logrotate configuration
ynh_restore_file --origin_path="/etc/logrotate.d/$app"

#=================================================
# INSTALL DEPENDENCIES
#=================================================
ynh_script_progression --message="Reinstalling dependencies..." --weight=60

if [ "$export" = "abiword" ]; then
	ynh_exec_warn_less ynh_install_app_dependencies $abiword_app_depencencies
elif [ "$export" = "libreoffice" ]; then
	ynh_exec_warn_less ynh_install_app_dependencies $libreoffice_app_dependencies
fi

#=================================================
# INSTALL NODEJS
#=================================================
ynh_script_progression --message="Reinstalling NodeJS..." --weight=7

ynh_install_nodejs --nodejs_version=$nodejs_version

#=================================================
# INSTALL ETHERPAD DEPENDENCIES
#=================================================
ynh_script_progression --message="Reinstalling Etherpad node dependencies..." --weight=17

ynh_use_nodejs
ynh_exec_warn_less npm cache clean --force

#=================================================
# RESTORE USER RIGHTS
#=================================================

# Restore permissions on app files
chown -R $app: $final_path
chmod o-rwx $final_path

#=================================================
# ADVERTISE SERVICE IN ADMIN PANEL
#=================================================

yunohost service add $app --description="Collaborative editor" --log="/var/log/$app/etherpad.log"

#=================================================
# RESTORE SYSTEMD
#=================================================
ynh_script_progression --message="Restoring the systemd configuration..."

ynh_restore_file --origin_path="/etc/systemd/system/$app.service"
systemctl enable $app.service --quiet

#=================================================
# RESTORE FAIL2BAN CONFIGURATION
#=================================================
ynh_script_progression --message="Restoring the Fail2Ban configuration..." --weight=6

ynh_restore_file "/etc/fail2ban/jail.d/$app.conf"
ynh_restore_file "/etc/fail2ban/filter.d/$app.conf"
ynh_systemd_action --action=restart --service_name=fail2ban

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

ynh_systemd_action --action=reload --service_name=nginx

#=================================================
# CHECK ETHERPAD STARTING
#=================================================
ynh_script_progression --message="Restarting Etherpad..." --weight=8

# Wait for etherpad to be fully started
ynh_systemd_action --action=restart --line_match="You can access your Etherpad instance at" --log_path="/var/log/$app/etherpad.log" --timeout="120"

#=================================================
# DEACTIVE MAINTENANCE MODE
#=================================================
ynh_script_progression --message="Disabling maintenance mode..." --weight=7

ynh_maintenance_mode_OFF

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

if [ $mypads -eq 1 ]
then
	Informations="You can access 2 different admin panels, for Etherpad by accessing https://$domain${path_url%/}/admin and for MyPads by accessing https://$domain${path_url%/}/mypads/?/admin."
else
	Informations="You can access to the admin panel, by accessing https://$domain${path_url%/}/admin."
fi

ynh_print_OFF
echo "$Informations
You can also find a config file for Etherpad at this path /var/www/etherpad_mypads/settings.json.

If you are facing an issue or want to improve this app, please open a new issue in this project: https://github.com/YunoHost-Apps/etherpad_mypads_ynh" > mail_to_send

ynh_send_readme_to_admin --app_message="mail_to_send" --recipients="$admin" --type=restore
ynh_print_ON

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

ynh_script_progression --message="Restoration completed for $app" --last