#!/bin/bash

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

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

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

ynh_clean_setup () {
	true
}
# Exit if an error occurs during the execution of the script
ynh_abort_if_errors

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

domain=$YNH_APP_ARG_DOMAIN
path_url="/"
is_public=$YNH_APP_ARG_IS_PUBLIC

app=$YNH_APP_INSTANCE_NAME

#=================================================
# 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=$app --key=is_public --value=$is_public

#=================================================
# STANDARD MODIFICATIONS
#=================================================
# FIND AND OPEN A PORT
#=================================================
ynh_script_progression --message="Configuring firewall..."

# Find an available port
port=$(ynh_find_port --port=8095)
ynh_app_setting_set --app=$app --key=port --value=$port

# Optional: Expose this port publicly
# (N.B. : you only need to do this if the app actually needs to expose the port publicly.
# If you do this and the app doesn't actually need you are CREATING SECURITY HOLES IN THE SERVER !)

# Open the port
# ynh_exec_warn_less yunohost firewall allow --no-upnp TCP $port

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

ynh_install_app_dependencies $pkg_dependencies
ynh_install_extra_app_dependencies --repo="deb https://artifacts.elastic.co/packages/oss-7.x/apt stable main" --package="$extra_pkg_dependencies" --key="https://artifacts.elastic.co/GPG-KEY-elasticsearch"
systemctl enable elasticsearch.service --quiet
systemctl start elasticsearch.service
ynh_install_nodejs --nodejs_version=$NODEJS_VERSION
ynh_install_extra_app_dependencies --repo="deb https://dl.yarnpkg.com/debian/ stable main" --package="yarn" --key="https://dl.yarnpkg.com/debian/pubkey.gpg"

#=================================================
# 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
git clone $source $final_path --quiet
pushd "$final_path"
	git checkout $COMMIT --quiet
popd

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

# Create a dedicated nginx config
ynh_add_nginx_config "port"

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

# Create a system user
ynh_system_user_create --username=$app --home_dir=$final_path

#=================================================
# SPECIFIC SETUP
#=================================================
# BUILDING 
#=================================================
ynh_script_progression --message="Building..."

pushd "$final_path"
	git submodule update --init --recursive
	ynh_use_nodejs
	yarn install --pure-lockfile
	mkdir "$final_path/dist"
	$ynh_npm run build
popd

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

# Create a dedicated systemd config
ynh_add_systemd_config --others_var="ynh_npm"

#=================================================
# MODIFY A CONFIG FILE
#=================================================
ynh_script_progression --message="Modifying a config file..."

config="$final_path/config/production.yaml"
cp -f ../conf/default.yaml "$config"
ynh_replace_string --match_string="__PORT__" --replace_string="$port" --target_file="$config"

#=================================================
# STORE THE CONFIG FILE CHECKSUM
#=================================================
ynh_script_progression --message="Storing the config file checksum..."

# Calculate and store the config file checksum into the app settings
ynh_store_file_checksum --file="$config"

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

# Set permissions to app files
chown -R $app: $final_path

#=================================================
# 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 $app --description "$app search index daemon" --log_type systemd

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

# Start a systemd service
ynh_systemd_action --service_name=$app --action="start" --log_path="systemd" --line_match="Server listening on port"

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

# Make app public if necessary
if [ $is_public -eq 1 ]
then
	# unprotected_uris allows SSO credentials to be passed anyway.
	ynh_app_setting_set --app=$app --key=unprotected_uris --value="/"
fi

#=================================================
# 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"