#!/bin/bash

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

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

#=================================================
# INSTALL DEPENDENCIES
#=================================================
ynh_script_progression --message="Installing dependencies..." --weight=7

# Install Nodejs
ynh_exec_warn_less ynh_install_nodejs --nodejs_version=$nodejs_version

#=================================================
# APP "BUILD" (DEPLOYING SOURCES, VENV, COMPILING ETC)
#=================================================
# DOWNLOAD, CHECK AND UNPACK SOURCE
#=================================================
ynh_script_progression --message="Setting up source files..." --weight=1

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

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

#=================================================
# CREATE DEDICATED USER
#=================================================
ynh_script_progression --message="Configuring system user..." --weight=3

# Create a system user
ynh_system_user_create --username=turnserver
adduser turnserver ssl-cert

#=================================================
# SYSTEM CONFIGURATION
#=================================================
ynh_script_progression --message="Adding system configurations related to $app..." --weight=1

# Create a dedicated NGINX config using the conf/nginx.conf template
ynh_add_nginx_config

# Create a dedicated systemd config
ynh_add_systemd_config

mkdir -p /etc/$app
# Create systemd service for turnserver
cp ../conf/coturn/default_coturn /etc/default/coturn-$app
ynh_add_systemd_config --service=coturn-$app --template=coturn-pairdrop.service

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

#=================================================
# SETUP LOGROTATE
#=================================================
ynh_script_progression --message="Configuring log rotation..." --weight=1

# Create log directory
mkdir -p /var/log/$app
touch /var/log/$app/$app.log
chown $app -R /var/log/$app

# Setup logrotate
ynh_use_logrotate --logfile "/var/log/$app"

#=================================================
# SET COTURN CONFIG
#=================================================
ynh_script_progression --message="Configuring Coturn..." --weight=1

# Find password for turnserver
turnserver_pwd=$(ynh_string_random --length=30)
ynh_app_setting_set --app=$app --key=turnserver_pwd --value=$turnserver_pwd

coturn_config_path="/etc/$app/coturn.conf"

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

# 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}" >> "$coturn_config_path"
fi

ynh_store_file_checksum --file="$coturn_config_path"

# Set permissions to 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

#=================================================
# 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

#=================================================
# APP INITIAL CONFIGURATION
#=================================================
# ADD A CONFIGURATION
#=================================================
ynh_script_progression --message="Adding a configuration file..." --weight=1

ynh_add_config --template="../conf/rtc_config.json" --destination="$install_dir/rtc_config.json"

chmod 400 "$install_dir/rtc_config.json"
chown $app:$app "$install_dir/rtc_config.json"

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

# Start a systemd service
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="Installation of $app completed" --last