#!/bin/bash

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

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

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

app=$YNH_APP_INSTANCE_NAME

domain=$(ynh_app_setting_get --app=$app --key=domain)
port=$(ynh_app_setting_get --app=$app --key=port)

#=================================================
# 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)..."

ynh_backup_before_upgrade
ynh_clean_setup () {
	ynh_restore_upgradebackup
}
ynh_abort_if_errors

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

ynh_systemd_action --service_name=$app --action=stop --log_path="/var/log/$app/$app.log"

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

# changes introduce in 
if [ -z $(ynh_app_setting_get --app=$app --key=final_path) ]
then
	final_path="/var/www/$app"
	data_path="/home/yunohost.app/$app"
	log_file="/var/log/$app/$app.log"
	path_url="/"
	ynh_app_setting_set --app=$app --key=final_path --value="$final_path"
	ynh_app_setting_set --app=$app --key=data_path --value="$data_path"
	ynh_app_setting_set --app=$app --key=log_file --value="$log_file"
	ynh_app_setting_set --app=$app --key=path_url --value="$path_url"
else
	final_path=$(ynh_app_setting_get --app=$app --key=final_path)
	data_path=$(ynh_app_setting_get --app=$app --key=data_path)
	log_file=$(ynh_app_setting_get --app=$app --key=log_file)
	path_url=$(ynh_app_setting_get --app=$app --key=path_url)
	python=$(ynh_app_setting_get --app=$app --key=python)
fi

# changes introduced in 2021.11.5~ynh1
if [ -f "/etc/systemd/system/$app@$app.service" ]
then
	# remove old systemd service
	if ynh_exec_warn_less yunohost service status "$app@$app" >/dev/null
	then
		yunohost service remove "$app@$app"
	fi
	ynh_remove_systemd_config --service="$app@$app"
fi
if [ ! -d "$final_path" ]
then
	# move $final_path to new directory
	mv "/opt/yunohost/$app" "$final_path"
	chown -R $app: "$final_path"
fi
if [ ! -d "$data_path" ]
then
	# move $data_path to new directory
	mv "/""home""/$app" "$data_path"
	find "$data_path/.$app" -maxdepth 1 -mindepth 1 -exec mv {} "$data_path" \;
	rmdir "$data_path/.$app"
	ynh_replace_string --match_string="/home/homeassistant/.homeassistant" --replace_string="$data_path" --target_file="$data_path/configuration.yaml"
	chown -R $app: "$data_path"
fi
if [ ! -f "$log_file" ]
then
	# create a directory with its log file
	myynh_create_dir "$(dirname "$log_file")"
	touch "$log_file"
fi

# changes introduced in 2021.12.8~ynh1
if [ -z $(ynh_app_setting_get --app=$app --key=db_name) ]
then
	# create a MySQL database
	db_name=$(ynh_sanitize_dbid --db_name=$app)
	db_user=$db_name
	ynh_app_setting_set --app=$app --key=db_name --value=$db_name
	ynh_mysql_setup_db --db_user=$db_user --db_name=$db_name
	db_pwd=$(ynh_app_setting_get --app=$app --key=mysqlpwd)
	if [ -z $(sed -n "/recorder:/=" "$data_path/configuration.yaml") ]
	then
		sed -i "$ a recorder:" "$data_path/configuration.yaml"
		sed -i "$ a \  db_url: mysql://$db_user:$db_pwd@127.0.0.1/$db_name?unix_socket=/var/run/mysqld/mysqld.sock&charset=utf8mb4" "$data_path/configuration.yaml"
	else
		sed -i "/recorder:/a \  db_url: mysql://$db_user:$db_pwd@127.0.0.1/$db_name?unix_socket=/var/run/mysqld/mysqld.sock&charset=utf8mb4" "$data_path/configuration.yaml"
	fi
fi

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

mynh_system_user_create

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

if [ "$upgrade_type" == "UPGRADE_APP" ]
then
	ynh_script_progression --message="Upgrading source files..."
	
	myynh_install_python --python="$py_required_version"
	ynh_exec_fully_quiet myynh_upgrade_venv_directory
	ynh_exec_fully_quiet myynh_install_homeassistant
fi

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

ynh_add_nginx_config

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

ynh_install_app_dependencies $pkg_dependencies

# Install libffi-3.3 if libffi.so.7 is missing (buster)
[[ $(ldconfig -p | grep libffi.so.7) ]] || myynh_compile_libffi

#=================================================
# UPDATE A CONFIG FILE
#=================================================
ynh_script_progression --message="Updating a configuration file..."

cp -r "../conf/homeassistant_conf_files/bin/." "$data_path/bin/"

ynh_add_config --template="../conf/sudoers" --destination="/etc/sudoers.d/$app"

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

# Create a dedicated systemd config
ynh_add_systemd_config

#=================================================
# GENERIC FINALIZATION
#=================================================
# SETUP LOGROTATE
#=================================================
ynh_script_progression --message="Upgrading logrotate configuration..."

ynh_use_logrotate --logfile="$log_file" --non-append

#=================================================
# SET FILE OWNERSHIP / PERMISSIONS
#=================================================

myynh_set_permissions

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

yunohost service add $app --description="Home Assistant server" --log="$log_file" --needs_exposed_ports=$port

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

# start systemd service with --verbose 
ynh_systemd_action --service_name=$app --action=start --line_match="Home Assistant initialized" --log_path="$log_file" --timeout=3600

# remove --verbose from service
ynh_replace_string --match_string=" --verbose" --replace_string="" --target_file="/etc/systemd/system/$app.service"
ynh_store_file_checksum --file="/etc/systemd/system/$app.service"
systemctl daemon-reload
ynh_systemd_action --service_name=$app --action=restart

#=================================================
# 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="Upgrade of $app completed" --last