#!/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=2

app=$YNH_APP_INSTANCE_NAME

domain=$(ynh_app_setting_get --app=$app --key=domain)
path_url=$(ynh_app_setting_get --app=$app --key=path)
final_path=$(ynh_app_setting_get --app=$app --key=final_path)
port=$(ynh_app_setting_get --app=$app --key=port)
db_name=$(ynh_app_setting_get --app=$app --key=db_name)
db_user=$db_name
db_pwd=$(ynh_app_setting_get --app=$app --key=psqlpwd)

allow_anonymous=$(ynh_app_setting_get --app=$app --key=allow_anonymous)
allow_anonymous_edits=$(ynh_app_setting_get --app=$app --key=allow_anonymous_edits)
allow_email_registration=$(ynh_app_setting_get --app=$app --key=allow_email_registration)
allow_free_url=$(ynh_app_setting_get --app=$app --key=allow_free_url)
require_free_url_authentication=$(ynh_app_setting_get --app=$app --key=require_free_url_authentication)

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

upgrade_type=$(ynh_check_app_version_changed)

#=================================================
# ENSURE DOWNWARD COMPATIBILITY
#=================================================
ynh_script_progression --message="Ensuring downward compatibility..." --weight=1

if [ -z "$allow_anonymous" ]; then
	allow_anonymous="false"
	ynh_app_setting_set --app=$app --key=allow_anonymous --value=$allow_anonymous
fi

if [ -z "$allow_anonymous_edits" ]; then
	allow_anonymous_edits="false"
	ynh_app_setting_set --app=$app --key=allow_anonymous_edits --value=$allow_anonymous_edits
fi

if [ -z "$allow_email_registration" ]; then
	allow_email_registration="false"
	ynh_app_setting_set --app=$app --key=allow_email_registration --value=$allow_email_registration
fi

if [ -z "$allow_free_url" ]; then
	allow_free_url="false"
	ynh_app_setting_set --app=$app --key=allow_free_url --value=$allow_free_url
fi

if [ -z "$require_free_url_authentication" ]; then
	require_free_url_authentication="false"
	ynh_app_setting_set --app=$app --key=require_free_url_authentication --value=$require_free_url_authentication
fi

# Cleaning legacy permissions
if ynh_legacy_permissions_exists; then
	ynh_legacy_permissions_delete_all

	ynh_app_setting_delete --app=$app --key=is_public
fi

#=================================================
# BACKUP BEFORE UPGRADE THEN ACTIVE TRAP
#=================================================
ynh_script_progression --message="Backing up HedgeDoc before upgrading (may take a while)..." --weight=10

# 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=1

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

#=================================================
# 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=$app --home_dir=$final_path

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

if [ "$upgrade_type" == "UPGRADE_APP" ]
then
	ynh_script_progression --message="Upgrading source files..." --weight=10

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

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

#=================================================
# NGINX CONFIGURATION
#=================================================
ynh_script_progression --message="Upgrading NGINX web server configuration..." --weight=2

# Create a dedicated nginx config
ynh_add_nginx_config

#=================================================
# UPGRADE DEPENDENCIES
#=================================================
ynh_script_progression --message="Upgrading dependencies..." --weight=10

ynh_exec_warn_less ynh_install_app_dependencies $pkg_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"

#=================================================
# SPECIFIC UPGRADE
#=================================================
# INSTALL HEDGEDOC
#=================================================

if [ "$upgrade_type" == "UPGRADE_APP" ]
then
	ynh_script_progression --message="Building HedgeDoc... (this will take some time and resources!)" --weight=20

	pushd "$final_path"
		ynh_secure_remove /usr/local/share/.cache/yarn 
		ynh_use_nodejs
		bin/setup
	popd
fi

#=================================================
# SETUP SYSTEMD
#=================================================
ynh_script_progression --message="Configuring a systemd service..." --weight=2

# Create a dedicated systemd config
ynh_add_systemd_config

#=================================================
# INTEGRATE SERVICE IN YUNOHOST
#=================================================
ynh_script_progression --message="Integrating service in YunoHost..." --weight=2

yunohost service add $app --description="Collaborative Markdown editor" --log="/var/log/$app/$app.log"

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

ynh_systemd_action --service_name=$app --action=start --log_path=systemd --line_match="HTTP Server listening"

#=================================================
# 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