#!/bin/bash

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

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

#=================================================
# LOAD SETTINGS
#=================================================
ynh_script_progression --message="Loading installation settings..." --weight=1

app=$YNH_APP_INSTANCE_NAME

domain=$(ynh_app_setting_get --app=$app --key=domain)
path_url=$(ynh_app_setting_get --app=$app --key=path)
admin=$(ynh_app_setting_get --app=$app --key=admin)
final_path=$(ynh_app_setting_get --app=$app --key=final_path)
data_path=$(ynh_app_setting_get --app=$app --key=data_path)
port=$(ynh_app_setting_get --app=$app --key=port)
instance_name=""
instance_name=$(ynh_app_setting_get --app=$app --key=instance_name)

#=================================================
# CHECK VERSION
#=================================================

upgrade_type=$(ynh_check_app_version_changed)

#=================================================
# BACKUP BEFORE UPGRADE THEN ACTIVE TRAP
#=================================================
ynh_script_progression --message="Backing up the app before upgrading (may take a while)..." --weight=15

# Backup the current version of the app
ynh_backup_before_upgrade
ynh_clean_setup () {
	# Restore it if the upgrade fails
	ynh_restore_upgradebackup
}
# Exit if an error occurs during the execution of the script
ynh_abort_if_errors

#=================================================
# STANDARD UPGRADE STEPS
#=================================================
# STOP SYSTEMD SERVICE
#=================================================
ynh_script_progression --message="Stopping a systemd service..." --weight=60

ynh_systemd_action --service_name=$app --action="stop" --log_path="systemd"

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

if [ "$upgrade_type" == "UPGRADE_APP" ]
then
	ynh_script_progression --message="Upgrading source files..." --weight=5

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

#=================================================
# NGINX CONFIGURATION
#=================================================
ynh_script_progression --message="Upgrading NGINX web server configuration..." --weight=1

# Create a dedicated NGINX config
ynh_add_nginx_config

#=================================================
# UPGRADE DEPENDENCIES
#=================================================
ynh_script_progression --message="Upgrading dependencies..." --weight=5

ynh_install_app_dependencies $pkg_dependencies
ynh_install_extra_app_dependencies --repo="deb https://dl.yarnpkg.com/debian/ stable main" --package="yarn" --key="https://dl.yarnpkg.com/debian/pubkey.gpg"

#=================================================
# CREATE DEDICATED USER
#=================================================
ynh_script_progression --message="Making sure dedicated system user exists..." --weight=1

# Create a dedicated user (if not existing)
ynh_system_user_create --username=$app
usermod -d $final_path $app 2>&1

#=================================================
# SPECIFIC UPGRADE
#=================================================
# INSTALL NODE PACKAGES
#=================================================
ynh_script_progression --message="Installing Node.js packages ..." --weight=1

ynh_exec_warn_less ynh_install_nodejs --nodejs_version=10
ynh_use_nodejs
node_PATH=$nodejs_path:$(sudo -u $app sh -c 'echo $PATH')

pushd $final_path || ynh_die
	chown -R $app:$app $final_path
	sudo -u $app touch $final_path/.yarnrc
	sudo -u $app PATH=$node_PATH yarn --cache-folder $final_path/yarn-cache --use-yarnrc $final_path/.yarnrc install 2>&1
	chown -R root:root $final_path
popd || ynh_die

#=================================================
# SETUP SYSTEMD
#=================================================
ynh_script_progression --message="Upgrading systemd configuration..." --weight=1

# Create a dedicated systemd config
ynh_add_systemd_config -v ynh_node

#=================================================
# UPDATE A CONFIG FILE
#=================================================

ynh_add_config --template="config.ini" --destination="$final_path/config.ini"
ln -sf $final_path/config.ini $data_path/config.ini

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

# Set permissions on app files
chown -R root:$app $final_path
chmod -R g=u,g-w,o-rwx $final_path
chown -R $app:$app $data_path
chmod -R g=u,g-w,o-rwx $data_path

#=================================================
# INTEGRATE SERVICE IN YUNOHOST
#=================================================
ynh_script_progression --message="Integrating service in YunoHost..." --weight=1

yunohost service add $app --description="Trilium Notes app" --log="systemd"

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

ynh_systemd_action --service_name=$app --action="start" --log_path="systemd"

#=================================================
# RELOAD NGINX
#=================================================
ynh_script_progression --message="Reloading NGINX web server..." --weight=1

ynh_systemd_action --service_name=nginx --action=reload

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

ynh_script_progression --message="Upgrade of $app completed" --last