#!/bin/bash

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

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

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

# Exit if an error occurs during the execution of the script
ynh_abort_if_errors

app=$YNH_APP_INSTANCE_NAME

domain=$(ynh_app_setting_get "$app" domain)
path_url=$(ynh_app_setting_get "$app" path)
final_path=$(ynh_app_setting_get "$app" final_path)
port=$(ynh_app_setting_get "$app" port)
salt=$(ynh_app_setting_get "$app" salt)

#=================================================
# ENSURE DOWNWARD COMPATIBILITY
#=================================================

# If final_path doesn't exist, create it
if [ -z "$final_path" ]; then
	final_path=/var/www/$app
	ynh_app_setting_set "$app" final_path "$final_path"
fi

if [ -d "/home/ynh$app" ]; then
	mv "/home/ynh$app/data" "$final_path/data"
	ynh_secure_remove "/home/ynh$app"
fi

if [ -z "$salt" ]; then
	salt=$(ynh_string_random 40)
	ynh_app_setting_set "$app" salt "$salt"
fi

#=================================================
# BACKUP BEFORE UPGRADE THEN ACTIVE TRAP
#=================================================

# 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

#=================================================
# CHECK THE PATH
#=================================================

# Normalize the URL path syntax
path_url=$(ynh_normalize_url_path "$path_url")

#=================================================
# STANDARD UPGRADE STEPS
#=================================================
# INSTALL DEPENDENCIES
#=================================================

ynh_install_app_dependencies $pkg_dependencies

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

# Download, check integrity, uncompress and patch the source from app.src
ynh_setup_source "$final_path"
mkdir -p "$final_path/data"

#=================================================
# NGINX CONFIGURATION
#=================================================

# Create a dedicated nginx config
ynh_add_nginx_config
if [ "$path_url" != "/" ]
then
	ynh_replace_string "^#sub_path_only" "" "/etc/nginx/conf.d/$domain.d/$app.conf"
fi
ynh_store_file_checksum "/etc/nginx/conf.d/$domain.d/$app.conf"

#=================================================
# CREATE DEDICATED USER
#=================================================

# Create a system user
ynh_system_user_create "$app"


#=================================================
# SPECIFIC UPGRADE
#=================================================
# Install nodesjs
#=================================================

# install nodejs
ynh_install_nodejs 8

#=================================================
# Install weboob with pip
#=================================================

ynh_secure_remove "${final_path}/venv"
virtualenv --system-site-packages "${final_path}/venv"
(
	set +o nounset
	source "${final_path}/venv/bin/activate"
	set -o nounset

	pip install --upgrade pip
	pip install weboob html2text simplejson BeautifulSoup PyExecJS
)

#=================================================
# Install Kresus with npm
#=================================================

ynh_use_nodejs
(
	cd "$final_path"
	chown -R "$app": "$final_path"
	npm install --production --unsafe-perm
)

#=================================================
# CONFIGURE HASTE
#=================================================

ynh_backup_if_checksum_is_different "$final_path/config.ini"

cp ../conf/config.ini "$final_path/config.ini"

ynh_replace_string "__PORT__"          "$port"       "$final_path/config.ini"
ynh_replace_string "__PATH__"          "$path_url"   "$final_path/config.ini"
ynh_replace_string "__FINALPATH__"     "$final_path" "$final_path/config.ini"
ynh_replace_string "__SALT__"          "$salt"       "$final_path/config.ini"

# Calculate and store the config file checksum into the app settings
ynh_store_file_checksum "$final_path/config.ini"

#=================================================
# SETUP SYSTEMD
#=================================================

ynh_replace_string "__NODEJS__"   "$nodejs_use_version"       ../conf/systemd.service
ynh_replace_string "__ENV_PATH__" "$PATH"                     ../conf/systemd.service
ynh_replace_string "__NODEPATH__" "$(dirname "$nodejs_path")" ../conf/systemd.service

# Create a dedicated systemd config
ynh_add_systemd_config

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

# Reset permissions
chown -R root:root "$final_path"

# Set permissions to app files
chown -R "$app":"$app" "$final_path/data/"
chmod -R 750 "$final_path/data/"

# Set permissions to config files
chown "$app" "$final_path/config.ini"
chmod 600 "$final_path/config.ini"

if [ -f "$final_path/data/weboob-data/backends" ]
then
	chmod 600 "$final_path/data/weboob-data/backends"
fi

#=================================================
# RELOAD NGINX
#=================================================

service "$app" restart
systemctl reload nginx

#=================================================
# SEND README TO ADMIN
#=================================================

message="
Kresus was updated!

Domain: $domain
Path  : $path_url
Config: $final_path/config.ini

Please remember the default behavior of YunoHost when installing a new app is: everyone has access to the app.
This may be an issue for Kresus as it is a personnal tool. Please remember to edit access rights in the YunoHost web administration panel or using command line interface.

Note about config.ini: this package will regenerate the config file on upgrade.
If you changed it manually and upgrade Kresus, you'll find a backup in $final_path.

Are you facing an issue, want to improve this app or say thank you?
Please open a new issue in this project: https://github.com/YunoHost-Apps/kresus_ynh
"
ynh_send_readme_to_admin "$message"