#!/bin/bash

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

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

#=================================================
# MANAGE SCRIPT FAILURE
#=================================================

ynh_clean_setup () {
	true
}
ynh_abort_if_errors

#=================================================
# RETRIEVE ARGUMENTS FROM THE MANIFEST
#=================================================

app=$YNH_APP_INSTANCE_NAME

domain=$YNH_APP_ARG_DOMAIN
is_public=$YNH_APP_ARG_IS_PUBLIC
home=$YNH_APP_ARG_HOME
latitude=$YNH_APP_ARG_LATITUDE
longitude=$YNH_APP_ARG_LONGITUDE
elevation=$YNH_APP_ARG_ELEVATION
unit_system=$YNH_APP_ARG_UNIT_SYSTEM
currency=$YNH_APP_ARG_CURRENCY
country=$YNH_APP_ARG_COUNTRY
time_zone=$YNH_APP_ARG_TIME_ZONE

#=================================================
# DEFINE USEFULL VARS
#=================================================

final_path="/var/www/$app"
data_path="/home/yunohost.app/$app"
log_file="/var/log/$app/$app.log"
path_url="/"

#=================================================
# CHECK IF THE APP CAN BE INSTALLED WITH THESE ARGS
#=================================================
ynh_script_progression --message="Validating installation parameters..."

[ ! -d "$final_path" ] || ynh_die --message="There is already a directory: $final_path "
ynh_webpath_register --app=$app --domain="$domain" --path_url="$path_url"

#=================================================
# 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=$app --key=final_path --value="$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"

#=================================================
# STANDARD MODIFICATIONS
#=================================================
# FIND AND OPEN A PORT
#=================================================
ynh_script_progression --message="Finding an available port..."

port=$(ynh_find_port 8123)
ynh_app_setting_set --app=$app --key=port --value="$port"

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

ynh_install_app_dependencies $pkg_dependencies

myynh_install_python --python="$py_required_version"

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

mynh_system_user_create

#=================================================
# CREATE A MYSQL DATABASE
#=================================================
ynh_script_progression --message="Creating 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

#=================================================
# DOWNLOAD, CHECK AND UNPACK SOURCE
#=================================================
ynh_script_progression --message="Setting up source files..."

# create a directory for the installation of Home Assistant
myynh_create_dir "$final_path"
chown -R $app: "$final_path"

# create a directory for the datas of Home Assistant
myynh_create_dir "$data_path/.cache"
chown -R $app: "$data_path"

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

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

ynh_add_nginx_config

#=================================================
# SPECIFIC SETUP
#=================================================

# grant sudo permissions to the user to manage his own systemd service
myynh_create_dir "/etc/sudoers.d"
ynh_add_config --template="../conf/sudoers" --destination="/etc/sudoers.d/$app"

#=================================================
# ADD A CONFIGURATION
#=================================================

cp -r "../conf/homeassistant_conf_files/." "$data_path/"
ynh_add_config --template="../conf/homeassistant_conf_files/configuration.yaml" --destination="$data_path/configuration.yaml"

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

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

#=================================================
# GENERIC FINALIZATION
#=================================================
# SETUP LOGROTATE
#=================================================
ynh_script_progression --message="Configuring log rotation..."

ynh_use_logrotate --logfile="$log_file"

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

myynh_set_permissions

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

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

#=================================================
# 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 systemd 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

#=================================================
# SETUP FAIL2BAN
#=================================================
ynh_script_progression --message="Configuring Fail2Ban..." --weight=1

# Create a dedicated Fail2Ban config
ynh_add_fail2ban_config --logpath="$log_file" --failregex="Login attempt or request with invalid authentication from <HOST>"

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

[ $is_public -eq 1 ] && ynh_permission_update --permission="main" --add="visitors"
# Allow the web UI to use its own API without Yunohost/SSOWat interfering with it. Home Assistant authentication should still be in effect.
ynh_permission_create --permission="api" --label="api" --url="/api" --allowed="visitors" "all_users" --auth_header="false" --show_tile="false" --protected="true"

#=================================================
# 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" --last