#!/bin/bash

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

source _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

#=================================================
# RETRIEVE ARGUMENTS FROM THE MANIFEST
#=================================================

domain=$YNH_APP_ARG_DOMAIN
path_url="/"

app=$YNH_APP_INSTANCE_NAME

#YOURSECRET3
focus_password=$(ynh_string_random --length=8)
#YOURSECRET1
videobridge_secret=$(ynh_string_random --length=8)
#YOURSECRET2
focus_secret=$(ynh_string_random --length=8)

#OTHER SECRET
turn_secret=$(ynh_string_random --length=8)

focus_user="focus"

videobridge_user="jvb"

max_memory=200 #125 mib with no user +1,5*50 users=75 mib

#=================================================
# CHECK IF THE APP CAN BE INSTALLED WITH THESE ARGS
#=================================================
ynh_script_progression --message="Validating installation parameters..."

final_path=/var/www/$app
test ! -e "$final_path" || ynh_die --message="This path already contains a folder"

# Register (book) web path
ynh_webpath_register --app=$app --domain=$domain --path_url=$path_url

#=================================================
# STORE SETTINGS FROM MANIFEST
#=================================================
ynh_script_progression --message="Storing installation settings..."

ynh_app_setting_set --app=$app --key=domain --value=$domain
ynh_app_setting_set --app=$app --key=path --value=$path_url
ynh_app_setting_set --app=$app --key=max_memory --value=$max_memory
ynh_app_setting_set --app=$app --key=focus_user --value=$focus_user
ynh_app_setting_set --app=$app --key=focus_password --value=$focus_password
ynh_app_setting_set --app=$app --key=focus_secret --value=$focus_secret
ynh_app_setting_set --app=$app --key=videobridge_user --value=$videobridge_user
ynh_app_setting_set --app=$app --key=videobridge_secret --value=$videobridge_secret
ynh_app_setting_set --app=$app --key=turn_secret --value=$turn_secret

#=================================================
# STANDARD MODIFICATIONS
#=================================================
# FIND AND OPEN A PORT
#=================================================
ynh_script_progression --message="Finding an available port..."

# Find an available port
port=4443
# Open this port
ynh_exec_warn_less yunohost firewall allow TCP $port
ynh_app_setting_set --app=$app --key=port --value=$port

# Find an available port
port_videobridge=10000
# Open this port
ynh_exec_warn_less yunohost firewall allow UDP $port_videobridge
ynh_app_setting_set --app=$app --key=port_videobridge --value=$port_videobridge

# Find an available port
port_component=5347
ynh_app_setting_set --app=$app --key=port_component --value=$port_component

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

ynh_package_update
# install generic dependencies
ynh_install_app_dependencies $pkg_dependencies

if [ $(uname -m) == "armv7l" ] 
then
	# install arm specific depedencies to compile extra dependencies
	ynh_install_app_dependencies $pkg_dependencies_arm
	
	# install extra dependencies not present in default debian repositories
	ynh_install_extra_app_dependencies  --repo="deb http://security.debian.org/debian-security/  $(lsb_release -cs)/updates main" --package="$pkg_extra_dependencies_arm"
fi

if ! yunohost app list | grep -q "prosody"
then
	yunohost tools update
	yunohost app install prosody
else
	yunohost tools update
	yunohost app upgrade prosody
fi

ynh_app_setting_set --app=$app --key=require_prosody --value="1"

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

# Create a system user
ynh_system_user_create --username=$app --home_dir="$final_path"
gpasswd --add prosody $app
gpasswd --add www-data $app

#=================================================
# DOWNLOAD, CHECK AND UNPACK SOURCE
#=================================================
ynh_script_progression --message="Setting up source files..."

ynh_app_setting_set --app=$app --key=final_path --value=$final_path
# Download, check integrity, uncompress and patch the source from app.src
declare -A packages
packages[jitsi-jicofo]="jicofo"
packages[jitsi-meet-prosody]="jitsi-meet/prosody-plugins"
packages[jitsi-meet-web]="jitsi-meet"
packages[jitsi-videobridge]="jitsi-videobridge"

for package in "${!packages[@]}"
do
	ynh_setup_source --dest_dir="$final_path/${package}_temp" --source_id=$package
	pushd "$final_path/${package}_temp"
		ar x $package.deb data.tar.xz
		tar xf data.tar.xz
	popd

	mv "$final_path/${package}_temp/usr/share/${packages[$package]}/" "$final_path/${package}/"
	ynh_secure_remove --file="$final_path/${package}_temp"
done

ynh_setup_source --dest_dir="$final_path/jitsi-meet-prosody" --source_id=mod_auth_ldap

chmod 750 "$final_path"
chmod -R o-rwx "$final_path"
chown -R $app:$app "$final_path"

#=================================================
# NGINX CONFIGURATION
#=================================================
ynh_script_progression --message="Configuring NGINX web server..."

# Create a dedicated NGINX config
ynh_add_nginx_config

#=================================================
# SPECIFIC SETUP
#=================================================
# CONFIGURE PROSODY
#=================================================
ynh_script_progression --message="Configuring prosody..."

ynh_add_config --template="../conf/prosody.cfg.lua" --destination="/etc/prosody/conf.avail/$domain.cfg.lua"
chmod 644 "/etc/prosody/conf.avail/$domain.cfg.lua"
ln -s "/etc/prosody/conf.avail/$domain.cfg.lua" "/etc/prosody/conf.d/$domain.cfg.lua"

echo | prosodyctl cert generate $domain
ln -sf "/var/lib/prosody/$domain.key" "/etc/prosody/certs/$domain.key"
ln -sf "/var/lib/prosody/$domain.crt" "/etc/prosody/certs/$domain.crt"
ln -sf "/var/lib/prosody/$domain.crt" "/usr/local/share/ca-certificates/$domain.crt"

echo | prosodyctl cert generate "auth.$domain"
ln -sf "/var/lib/prosody/auth.$domain.key" "/etc/prosody/certs/auth.$domain.key"
ln -sf "/var/lib/prosody/auth.$domain.crt" "/etc/prosody/certs/auth.$domain.crt"
ln -sf "/var/lib/prosody/auth.$domain.crt" "/usr/local/share/ca-certificates/auth.$domain.crt"

update-ca-certificates -f

ynh_systemd_action --service_name="prosody" --action="restart"

prosodyctl register "$focus_user" "auth.$domain" "$focus_password"

prosodyctl register "$videobridge_user" "auth.$domain" "$videobridge_secret"

prosodyctl mod_roster_command subscribe $focus_user.$domain $focus_user@auth.$domain

#=================================================
# CONFIGURE JITSI-VIDEOBRIDGE
#=================================================
ynh_script_progression --message="Configuring Jitsi-Videobridge..."

public_ipv4="$(curl ip.yunohost.org)" || true
private_ipv4="$(ip route get 1 | sed -n 's/^.*src \([0-9.]*\) .*$/\1/p')" || true

muc_nickname=$(uuidgen)
ynh_app_setting_set --app=$app --key=muc_nickname --value=$muc_nickname

mkdir -p "/etc/$app/videobridge"

ynh_add_config --template="../conf/jitsi-videobridge-callstats-java-sdk.properties" --destination="/etc/$app/videobridge/callstats-java-sdk.properties"

ynh_add_config --template="../conf/jitsi-videobridge-jvb.conf" --destination="/etc/$app/videobridge/jvb.conf"

ynh_add_config --template="../conf/jitsi-videobridge-logging.properties" --destination="/etc/$app/videobridge/logging.properties"

ynh_add_config --template="../conf/jitsi-videobridge-sip-communicator.properties" --destination="/etc/$app/videobridge/sip-communicator.properties"

ynh_add_config --template="../conf/jitsi-videobridge.config" --destination="/etc/$app/videobridge/config"

#=================================================
# REPLACE JNIWRAPPER FOR ARMV7L AARCHITECTURE
#=================================================
if [ $(uname -m) == "armv7l" ] 
then
	# set openjdk-8 as default 
	sudo update-alternatives --set java /usr/lib/jvm/java-8-openjdk-armhf/jre/bin/java
	tempdir="$(mktemp -d)"
	
	# prepare jniwrapper compilation
	export JAVA_HOME=/usr/lib/jvm/java-8-openjdk-armhf
	
	declare -A packages_arm
	packages_arm[jitsi-sctp]="jitsi-sctp"
	packages_arm[usrsctp]="jitsi-sctp/usrsctp"
	
	for packages_arm in "${!packages_arm[@]}"
	do
		ynh_setup_source --dest_dir="$tempdir" --source_id=$packages_arm
	done
	
	# needed to make compile works
	if [ ! -d "$tempdir/jitsi-sctp/jniwrapper/native/src/main/resources/lib/linux-arm/" ]
	then
		mkdir -p $tempdir/jitsi-sctp/jniwrapper/native/src/main/resources/lib/linux-arm/
	fi
	
	pushd "$tempdir/jitsi-sctp"
		mvn package -DbuildSctp -DbuildNativeWrapper -DdeployNewJnilib -DskipTests
		mvn package	
	popd
	
	# rm official jniwrapper to copy 
	rm "$final_path/jitsi-videobridge/lib/jniwrapper-native-1.0-8-g04269a7.jar"
	mv "$tempdir/jitsi-sctp/jniwrapper/native/target/jniwrapper-native-1.0-SNAPSHOT.jar" "$final_path/jitsi-videobridge/lib/"
	
	ynh_secure_remove --file="$tempdir"

fi


#=================================================
# CONFIGURE JITSI-JICOFO
#=================================================
ynh_script_progression --message="Configuring Jitsi-Jicofo..."

mkdir -p "/etc/$app/jicofo"

ynh_add_config --template="../conf/jitsi-jicofo-config" --destination="/etc/$app/jicofo/config"

ynh_add_config --template="../conf/jitsi-jicofo-jicofo.conf" --destination="/etc/$app/jicofo/jicofo.conf"

ynh_add_config --template="../conf/jitsi-jicofo-logging.properties" --destination="/etc/$app/jicofo/logging.properties"

#=================================================
# CONFIGURE JITSI-MEET
#=================================================
ynh_script_progression --message="Configuring Jitsi-Meet..."

mkdir -p "/etc/$app/meet"

ynh_add_config --template="../conf/jitsi-meet-config.js" --destination="/etc/$app/meet/$domain-config.js"
chmod 644 "/etc/$app/meet/$domain-config.js"

#=================================================
# CREATE LOG DIR
#=================================================
ynh_script_progression --message="Creating log dir..."

mkdir -p "/var/log/$app"
chown -R $app: /var/log/$app
chmod -R 770 /var/log/$app

#=================================================
# SETUP SYSTEMD
#=================================================
ynh_script_progression --message="Configuring a systemd service..."

# Create a dedicated systemd config
ynh_add_systemd_config --service=$app-videobridge --template="jitsi-videobridge.service"
ynh_add_systemd_config --service=$app-jicofo --template="jitsi-jicofo.service"

#=================================================
# GENERIC FINALIZATION
#=================================================
# SECURE FILES AND DIRECTORIES
#=================================================
ynh_script_progression --message="Securing files and directories..."

# Set permissions to app files
chown -R $app: /etc/$app

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

# Use logrotate to manage application logfile(s)
ynh_use_logrotate

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

yunohost service add $app-videobridge --log "/var/log/$app/$app-videobridge.log" --needs_exposed_ports $port $port_videobridge
yunohost service add $app-jicofo --log "/var/log/$app/$app-jicofo.log"

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

# Start a systemd service
ynh_systemd_action --service_name=$app-jicofo --action="start" --log_path="/var/log/$app/$app-jicofo.log"
ynh_systemd_action --service_name=$app-videobridge --action="start" --log_path="/var/log/$app/$app-videobridge.log"

#=================================================
# SETUP SSOWAT
#=================================================
ynh_script_progression --message="Configuring permissions..."

# Make app public
ynh_permission_update --permission="main" --add="visitors"

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

ynh_systemd_action --service_name=nginx --action=reload

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

ynh_script_progression --message="Installation of $app completed"