#!/bin/bash

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

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

upgrade_type=$(ynh_check_app_version_changed)

#=================================================
# STOP SYSTEMD SERVICE
#=================================================
ynh_script_progression --message="Stopping a systemd service..." --weight=1

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

#=================================================
# "REBUILD" THE APP (DEPLOY NEW SOURCES, RERUN NPM BUILD...)
#=================================================
# DOWNLOAD, CHECK AND UNPACK SOURCE
#=================================================

if [ "$upgrade_type" == "UPGRADE_APP" ]
then
	ynh_script_progression --message="Upgrading source files..." --weight=1

	# Download, check integrity, uncompress and patch the source from manifest.toml
	ynh_setup_source --dest_dir="$install_dir"
fi

chown -R $app:www-data "$install_dir"

#=================================================
# MULTINSTANCE SUPPORT
#=================================================

if [ ! -e /etc/$app/coturn.conf ]
then
    ynh_script_progression --message="Creating an independant service for Coturn..." --weight=1

    #=================================================
    # CREATE AN INDEPENDANT SERVICE FOR COTURN
    #=================================================

    # Disable default config for turnserver and create a new service
    systemctl stop coturn.service

    # Set by default the system config for coturn
    echo "" > /etc/turnserver.conf
    ynh_replace_string --match_string="TURNSERVER_ENABLED=1" --replace_string="TURNSERVER_ENABLED=0" --target_file=/etc/default/coturn

    #=================================================
    # MAKE A CLEAN LOGROTATE CONFIG
    #=================================================

    ynh_use_logrotate --logfile /var/log/$app --nonappend
fi

#=================================================
# UPDATE COTURN CONFIG
#=================================================
ynh_script_progression --message="Updating Coturn config..." --weight=1

ynh_add_config --template="../conf/coturn/turnserver.conf" --destination="/etc/$app/coturn.conf"

# Get public IP and set as external IP for coturn
# note : '|| true' is used to ignore the errors if we can't get the public ipv4 or ipv6
public_ip4="$(curl -s ip.yunohost.org)" || true
public_ip6="$(curl -s ipv6.yunohost.org)" || true

if ( [[ -n "$public_ip4" ]] && ynh_validate_ip4 --ip_address="$public_ip4" || [[ -n "$public_ip6" ]] && ynh_validate_ip6 --ip_address="$public_ip6" )
then
    echo "external-ip=${public_ip4}/${public_ip6}" >> "/etc/$app/coturn.conf"
fi

ynh_store_file_checksum --file="/etc/$app/coturn.conf"

ynh_system_user_create --username=turnserver
adduser turnserver ssl-cert

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

#=================================================
# UPGRADE DEPENDENCIES
#=================================================
ynh_script_progression --message="Upgrading dependencies..." --weight=5

# Install Nodejs
ynh_exec_warn_less ynh_install_nodejs --nodejs_version=$nodejs_version

#=================================================
# REAPPLY SYSTEM CONFIGURATIONS
#=================================================
ynh_script_progression --message="Upgrading system configurations related to $app..." --weight=1

ynh_add_nginx_config

ynh_add_systemd_config

yunohost service add $app --description="Local file sharing in your browser" --log="/var/log/$app/$app.log"
yunohost service add coturn-$app --description="Coturn TURN server" --log="/var/log/$app/turnserver.log" --needs_exposed_ports $port_turnserver

#=================================================
# BUILD YARN DEPENDENCIES
#=================================================
ynh_script_progression --message="Building Yarn dependencies..."

pushd "$install_dir"
	ynh_use_nodejs
	ynh_exec_warn_less ynh_exec_as $app env $ynh_node_load_PATH $ynh_npm install
popd

#=================================================
# RECONFIGURE THE APP (UPDATE CONF, APPLY MIGRATIONS...)
#=================================================
# UPDATE A CONFIG FILE
#=================================================
#ynh_script_progression --message="Updating a configuration file..." --weight=1

#ynh_add_config --template="some_config_file" --destination="$install_dir/some_config_file"

#chmod 400 "$install_dir/some_config_file"
#chown $app:$app "$install_dir/some_config_file"

#=================================================
# START SYSTEMD SERVICE
#=================================================
ynh_script_progression --message="Starting a systemd service..." --weight=1

ynh_systemd_action --service_name=$app --action="start" --log_path="systemd"
ynh_systemd_action --service_name=coturn-$app.service --action=restart --log_path="/var/log/$app/turnserver.log"

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

ynh_script_progression --message="Upgrade of $app completed" --last