#!/bin/bash

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

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

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

ynh_clean_setup () {
	### Remove this function if there's nothing to clean before calling the remove script.
	true
}
# Exit if an error occurs during the execution of the script
ynh_abort_if_errors

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

domain=$YNH_APP_ARG_DOMAIN
path_url=$YNH_APP_ARG_PATH
is_public=$YNH_APP_ARG_IS_PUBLIC
app=$YNH_APP_INSTANCE_NAME

#=================================================
# CHECK IF THE APP CAN BE INSTALLED WITH THESE ARGS
#=================================================
ynh_script_progression --message="Validating installation parameters..." --weight=1

final_path=/opt/yunohost/$app
test ! -e "$final_path" || ynh_die --message="This path already contains a folder"

# Register (book) web path
ynh_webpath_register --app=$app --domain=$domain --path_url=$path_url

#=================================================
# STORE SETTINGS FROM MANIFEST
#=================================================
ynh_script_progression --message="Storing installation settings..." --weight=1

ynh_app_setting_set --app=$app --key=domain --value=$domain
ynh_app_setting_set --app=$app --key=path --value=$path_url
ynh_app_setting_set --app=$app --key=is_public --value=$is_public

#Will be used in restore script to check that we're restoring on the same OS/Board type
ynh_app_setting_set --app=$app --key=OS --value=$OS
ynh_app_setting_set --app=$app --key=mach --value=$MACH


#=================================================
# STANDARD MODIFICATIONS
#=================================================
# FIND AND OPEN A PORT
#=================================================

# Find an available port
port=$(ynh_find_port --port=8080)
ynh_app_setting_set --app=$app --key=port --value=$port
#Standard yunohost does not change __PORT__ in systemd.service
#ynh_replace_string --match_string="__PORT__" --replace_string="$port" --target_file="../conf/systemd.service"

#=================================================
# INSTALL DEPENDENCIES
#=================================================
ynh_script_progression --message="Installing dependencies..." --weight=15

ynh_install_app_dependencies $pkg_dependencies

#=================================================
# DOWNLOAD, CHECK AND UNPACK SOURCE
#=================================================
ynh_script_progression --message="Setting up source files..." --weight=5

ynh_app_setting_set --app=$app --key=final_path --value=$final_path
# Download, check integrity, uncompress and patch the source from app.src
# Create an app.src for the correct version of domoticz
# match string are fulfilled in _common.sh via the upstream bash installation script
cp ../conf/app.src.default ../conf/app.src
ynh_replace_string --match_string="__OS__" --replace_string="$OS" --target_file="../conf/app.src"
ynh_replace_string --match_string="__MACH__" --replace_string="$MACH" --target_file="../conf/app.src"
ynh_replace_string --match_string="__SHA256_SUM__" --replace_string="$SHA256" --target_file="../conf/app.src"

ynh_setup_source --dest_dir="$final_path"
#Create the database file
if [ ! -f $final_path/domoticz.db ]; then
	touch $final_path/domoticz.db
	chmod 644 $final_path/domoticz.db
fi


#=================================================
# NGINX CONFIGURATION
#=================================================
ynh_script_progression --message="Configuring nginx web server..." --weight=2

# Create a dedicated nginx config
ynh_add_nginx_config

#=================================================
# CREATE DEDICATED USER
#=================================================
ynh_script_progression --message="Configuring system user..." --weight=1

# Create a system user
ynh_system_user_create --username=$app
#allow user to access USB / serial port to communicate with tools (RFXtrx, Z-wave dongle, etc.)
usermod -a -G dialout $app

#allow app user to restart service on startup
cp ../conf/sudoer ../conf/$app.conf
ynh_replace_string --match_string="__APP__" --replace_string="$app" --target_file="../conf/$app.conf"
mv ../conf/$app.conf /etc/sudoers.d/$app
chmod 440 /etc/sudoers.d/$app

#=================================================
# SPECIFIC SETUP
#=================================================
#create log path and assing permission
#=================================================

mkdir -p /var/log/$app
chown -R domoticz: /var/log/$app

#=================================================
# SETUP HOOKS FILE
#=================================================

ynh_replace_string --match_string="__APP__" --replace_string="$app" --target_file="../hooks/post_app_addaccess"
ynh_replace_string --match_string="__APP__" --replace_string="$app" --target_file="../hooks/post_app_removeaccess"


#=================================================
# SETUP SYSTEMD
#=================================================
ynh_script_progression --message="Configuring a systemd service..." --weight=1

# Create a dedicated systemd config
ynh_add_systemd_config --others_var="port"

#ynh_store_file_checksum --file="$final_path/CONFIG_FILE"



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

### For security reason, any app should set the permissions to root: before anything else.
### Then, if write authorization is needed, any access should be given only to directories
### that really need such authorization.

# Set permissions to app files
#chown -R root: $final_path
#Both folder and database file must be own by app user for domoticz to work and allow internal upgrade
chown -R $app: $final_path

#=================================================
# SETUP LOGROTATE
#=================================================
ynh_script_progression --message="Configuring log rotation..." --weight=1

# Use logrotate to manage application logfile(s)
ynh_use_logrotate

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

yunohost service add $app --description "Domotique open sources" --log "/var/log/$app/$app.log"

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

# Start a systemd service
ynh_systemd_action --service_name=$app --action="start"
# --log_path="/var/log/$app/$app.log"

#=================================================
# SETUP SSOWAT
#=================================================
ynh_script_progression --message="Configuring SSOwat..." --weight=1

# Make app public if necessary
if [ $is_public -eq 1 ]; then
	ynh_permission_update --permission "main" --add visitors
else
	# If the app is private, API should stays publicly accessible.
	# This is a fake permission without any URL.
	# The purpose of this permission is only to trigger hooks post_app_add/removeaccess when it's modified.
	# We can't use a real permission for now because the actual permision system doesn't support regex.
	ynh_permission_create --permission="domoticz_API" --allowed="visitors"	
	if [ "$path_url" == "/" ]; then
		# If the path is /, clear it to prevent any error with the regex.
		path_url=""
	fi
#	# Modify the domain to be used in a regex
	domain_regex=$(echo "$domain" | sed 's@-@.@g')
	ynh_app_setting_set --app=$app --key=unprotected_regex --value="$domain_regex$path_url/json.htm.*$"
fi


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