#!/bin/bash

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

# Keep this path for calling _common.sh inside the execution's context of backup and restore scripts
source ../settings/scripts/_common.sh
source /usr/share/yunohost/helpers

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

ynh_clean_setup () {
	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 installation settings..." --weight=1

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)
group_name=$(ynh_app_setting_get --app=$app --key=group_name)
port=$(ynh_app_setting_get --app=$app --key=port)
turnserver_port=$(ynh_app_setting_get --app=$app --key=turnserver_port)
turnserver_pwd=$(ynh_app_setting_get --app=$app --key=turnserver_pwd)

#=================================================
# CHECK IF THE APP CAN BE RESTORED
#=================================================
ynh_script_progression --message="Validating restoration parameters..." --weight=1

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 "

#=================================================
# SPECIFIC RESTORATION
#=================================================
# REINSTALL DEPENDENCIES
#=================================================
ynh_script_progression --message="Reinstalling dependencies..." --weight=1

# Define and install dependencies
ynh_install_app_dependencies $pkg_dependencies

#=================================================
# 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 Galène main directory..." --weight=1

ynh_restore_file --origin_path="$final_path"
ynh_restore_file --origin_path="/etc/$app"
ynh_restore_file --origin_path="/var/log/$app"

#=================================================
# 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
ynh_system_user_create --username=turnserver
adduser turnserver ssl-cert

#=================================================
# RESTORE SYSTEMD
#=================================================
ynh_script_progression --message="Restoring the systemd configuration..." --weight=1

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

#=================================================
# INTEGRATE SERVICE IN YUNOHOST
#=================================================
ynh_script_progression --message="Integrating service in YunoHost..." --weight=2

yunohost service add $app --description="Videoconferencing server" --log="/var/log/$app/$app.log" --needs_exposed_ports $port
yunohost service add coturn-$app --description="Coturn TURN server" --log="/var/log/$app/turnserver.log" --needs_exposed_ports $turnserver_port

#=================================================
# START SYSTEMD SERVICE
#=================================================
ynh_script_progression --message="Starting a systemd service..." --weight=3

ynh_systemd_action --service_name=$app --action=start --log_path="/var/log/$app/$app.log"

#=================================================
# CREATE A DH FILE
#=================================================
ynh_script_progression --message="Creating a dhparam file..." --weight=3

# WARNING : theses command are used in INSTALL, UPGRADE, RESTORE
# For any update do it in all files

# Make dhparam cert for Galène if it doesn't exist
if [ ! -e /etc/ssl/private/dh2048.pem ]
then
    ynh_exec_warn_less openssl dhparam -out /etc/ssl/private/dh2048.pem -outform PEM -2 2048 -dsaparam
    chown root:ssl-cert /etc/ssl/private/dh2048.pem
    chmod 640 /etc/ssl/private/dh2048.pem
fi

#=================================================
# OPEN THE PORT
#=================================================

# Ouvre le port dans le firewall
ynh_exec_warn_less yunohost firewall allow --no-upnp TCP $port
ynh_exec_warn_less yunohost firewall allow Both $turnserver_port

#=================================================
# RESTORE USER RIGHTS
#=================================================
ynh_script_progression --message="Restoring permissions..." --weight=1

# Restore permissions on app files
# Set permissions on app files
chown -R $app:$app $final_path
chmod -R 755 $final_path
chown -R $app:root /var/log/$app
chown -R $app:root /etc/$app
chown turnserver:root /etc/$app/coturn.conf
chmod -R u=rwX,g=rX,o= /etc/$app
chmod 770 $final_path/Coturn_config_rotate.sh
setfacl -R -m user:turnserver:rX  /etc/$app
setfacl -R -m user:turnserver:rwX  /var/log/$app

#=================================================
# RESTORE THE LOGROTATE CONFIGURATION
#=================================================

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

#=================================================
# GENERIC FINALIZATION
#=================================================
# RELOAD NGINX AND PHP-FPM
#=================================================
ynh_script_progression --message="Reloading NGINX web server..." --weight=1

ynh_systemd_action --service_name=nginx --action=reload

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

ynh_script_progression --message="Restoration completed for Galène" --last