#!/bin/bash

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

# manage script failure
ynh_clean_setup () {
  ynh_clean_check_starting
}
ynh_abort_if_errors

# retrieve arguments
app=$YNH_APP_INSTANCE_NAME
domain=$(ynh_app_setting_get --app="$app" --key=domain)
port=$(ynh_app_setting_get --app="$app" --key=port)

# definie useful vars
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

# use prior backup and restore on error only if backup feature exists on installed instance
ynh_script_progression --message="Creating backup in case of failure..."
if [ -f "/etc/yunohost/apps/$app/scripts/backup" ] ; then
  ynh_backup_before_upgrade # Backup the current version of the app
  ynh_clean_setup () {
      ynh_restore_upgradebackup
      ynh_clean_check_starting
  }
fi

# build (if needed) & install Pyhton
ynh_script_progression --message="Installing dependencies..."
myynh_install_dependencies --python="$PY_REQUIRED_VERSION"

# stop systemd service
ynh_script_progression --message="Stoping service..."
ynh_systemd_action --service_name="$app" --action=stop --line_match="Stopped Home Assistant" --log_path="$log_file" --timeout=300

# migrate to new app architecture
ynh_script_progression --message="If needed, migrating to new app architecture..."
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" "$data_path"
  mv "$data_path/.$app/.*" "$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
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

# installation in a virtual environment
ynh_script_progression --message="Installing Home Assistant in a virtual environment..."
ynh_exec_fully_quiet myynh_install_homeassistant

# update script in bin
ynh_script_progression --message="Updating YunoHost script used by homeassitant..."
cp -r "../conf/homeassistant_conf_files/bin/." "$data_path/bin/"

# setup up systemd service
ynh_script_progression --message="Adding the dedicated service..."
ynh_add_systemd_config

# grant sudo permissions to the user to manage his own systemd service
ynh_script_progression --message="Creating dedicated user, rights and folders..."
ynh_add_config --template="../conf/sudoers" --destination="/etc/sudoers.d/$app"

# add service in admin panel
yunohost service add "$app" --log "$log_file" --description "Home Assistant server" --needs_exposed_ports $port

# set permissions
myynh_set_permissions

# start systemd service
ynh_script_progression --message="Starting the Home Assistant server..."
systemctl daemon-reload
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

# enable logrotate
ynh_use_logrotate --logfile="$log_file" --nonappend

# create a dedicated nginx config
ynh_script_progression --message="Configuring nginx web server..."
ynh_add_nginx_config

# reload nginx
ynh_systemd_action --service_name=nginx --action=reload

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