#!/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=$YNH_APP_ARG_DOMAIN
path_url=$YNH_APP_ARG_PATH
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/$app
config_path=/home/yunohost.app/$app

test ! -e "$final_path" || ynh_die "This path already contains a folder"

# Normalize the url path syntax
path_url=$(ynh_normalize_url_path $path_url)

# Check web path availability
ynh_webpath_available $domain $path_url

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

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

# Find a free port
port=$(ynh_find_port 9000)

ynh_app_setting_set --app=$app --key=port --value=$port

#=================================================
# 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
ynh_app_setting_set --app=$app --key=final_path  --value=$final_path
ynh_app_setting_set --app=$app --key=config_path --value=$config_path

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

# Install Nodejs
ynh_exec_warn_less ynh_install_nodejs --nodejs_version=$nodejs_version

# Install Yarn
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..."

mkdir -p $final_path

mkdir -p $config_path

# Download, check integrity, uncompress and patch the source from app.src
ynh_setup_source --dest_dir=$final_path

#=================================================
# COPY A CONFIG FILE
#=================================================

# Main config File
ynh_replace_string --match_string="__PORT__" --replace_string="$port" --target_file="../conf/config.js"

cp -a ../conf/config.js "$config_path"

ynh_store_file_checksum "$config_path/config.js"

#=================================================
# INSTALL THE LOUNGE
#=================================================
ynh_script_progression --message="Installing The Lounge..."

pushd $final_path

yarn install && ynh_exec_warn_less NODE_ENV=production yarn build

popd

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

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

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

# Create a dedicated nginx config
ynh_add_nginx_config

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

ynh_replace_string --match_string="__APP__"       --replace_string="$app"         --target_file="../conf/systemd.service"
ynh_replace_string --match_string="__FINALPATH__" --replace_string="$final_path"  --target_file="../conf/systemd.service"
ynh_replace_string --match_string="__ENV_PATH__"  --replace_string="$PATH"        --target_file="../conf/systemd.service"
ynh_replace_string --match_string="__NODE__"      --replace_string="$nodejs_path" --target_file="../conf/systemd.service"

ynh_add_systemd_config

yunohost service add $app --description "Self-hosted web IRC client" --log "/var/log/$app/$app.log"

#=================================================
# GENERIC FINALIZATION
#=================================================
# SECURE FILES AND DIRECTORIES
#=================================================

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

#=================================================
# 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="Available at http"

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

# Make app public if necessary or protect it
[ $is_public -eq 0 ] || 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"