#!/bin/bash

#=================================================
# GENERIC STARTING
#=================================================
# IMPORT GENERIC HELPERS
#=================================================

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

#=================================================
# MANAGE FAILURE OF THE SCRIPT
#=================================================

ynh_abort_if_errors	# Active trap pour arrêter le script si une erreur est détectée.

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

domain=$YNH_APP_ARG_DOMAIN
path_url=$YNH_APP_ARG_PATH

app=$YNH_APP_INSTANCE_NAME

#=================================================
# CHECK IF THE APP CAN BE INSTALLED WITH THIS ARGS
#=================================================

ynh_script_progression --message="Validating installation parameters..."

final_path=/var/www/$app
config_path=/home/yunohost.app/$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_app_setting_set $app domain $domain
ynh_app_setting_set $app path $path_url

#=================================================
# STANDARD MODIFICATIONS
#=================================================
# FIND AND OPEN A PORT
#=================================================

port=$(ynh_find_port 9001)	# Look for an available port
ynh_app_setting_set $app port $port

#=================================================
# INSTALL NODEJS
#=================================================

ynh_install_nodejs $nodejs_version

#=================================================
# DOWNLOAD, CHECK AND UNPACK SOURCE
#=================================================

ynh_app_setting_set $app final_path $final_path
ynh_setup_source "$final_path"	# Download, check integrity and uncompress the source from app.src

#=================================================
# NGINX CONFIGURATION
#=================================================

ynh_replace_string "__PATH__/" "${path_url%/}/" "../conf/nginx.conf"
ynh_add_nginx_config

#=================================================
# CREATE DEDICATED USER
#=================================================

ynh_system_user_create $app $final_path

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

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

# Setup logrotate
ynh_use_logrotate

#=================================================
# INSTALL
#=================================================

# Install dependencies and proceed with the installation
nodedir=$(ynh_get_nodejs_bindir $nodejs_version)
(cd $final_path && PATH=$nodedir:$PATH npm install --production > $install_log 2>&1)

#=================================================
# CONFIGURE
#=================================================

cp ../conf/app.json "$final_path/config/app.json"
ynh_replace_string "__DOMAIN__" "$domain" "$final_path/config/app.json"

cp ../conf/db.json "$final_path/config/db.json"

ynh_store_file_checksum "$final_path/config/app.json"
ynh_store_file_checksum "$final_path/config/db.json"

#=================================================
# SECURING FILES AND DIRECTORIES
#=================================================

# Set files ownership to etherpad
chown -R $app: $final_path
chmod 600 "$final_path/config/db.json"	# Restrict access to db.json

#=================================================
# SETUP SYSTEMD
#=================================================

#ynh_replace_string "__NODEJS__" "$nodejs_use_version" "../conf/systemd.service"
ynh_replace_string "__NODE_DIR__" "$nodedir" "../conf/systemd.service"
ynh_replace_string "__PORT__" "$port" "../conf/systemd.service"
ynh_replace_string "__FINAL_PATH__" "$final_path" "../conf/systemd.service"
ynh_add_systemd_config

#=================================================
# ENABLE SERVICE IN ADMIN PANEL
#=================================================

systemctl start $app.service

# Add service to YunoHost monitoring panel
yunohost service add $app

#=================================================
# SETUP FAIL2BAN
#=================================================

#ynh_add_fail2ban_config "/var/log/nginx/$domain-access.log" "<HOST> .* \"POST /mypads/api/auth/login HTTP/1.1\" 400" 5

#=================================================
# RELOAD NGINX
#=================================================

systemctl reload nginx