#!/bin/bash

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

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

#=================================================
# LOAD SETTINGS
#=================================================
ynh_script_progression --message="Loading installation settings..." --weight=2

app=$YNH_APP_INSTANCE_NAME

domain=$(ynh_app_setting_get --app=$app --key=domain)
path_url=$(ynh_app_setting_get --app=$app --key=path)
final_path=$(ynh_app_setting_get --app=$app --key=final_path)
db_name=$(ynh_app_setting_get --app=$app --key=db_name)
with_mysql=$(ynh_app_setting_get --app=$app --key=with_mysql)
with_sftp=$(ynh_app_setting_get --app=$app --key=with_sftp)
password=$(ynh_app_setting_get --app=$app --key=password)
php_custom=$(ynh_app_setting_get --app=$app --key=php_custom)

admin_mail_html=$(ynh_app_setting_get --app=$app --key=admin_mail_html)

fpm_footprint=$(ynh_app_setting_get --app=$app --key=fpm_footprint)
fpm_usage=$(ynh_app_setting_get --app=$app --key=fpm_usage)

#=================================================
# CHECK VERSION
#=================================================

upgrade_type=$(ynh_check_app_version_changed)

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

# Delete old user
if [ -n "$(ynh_app_setting_get --app=$app --key=user)" ]
then
    ynh_system_user_delete --username="$(ynh_app_setting_get --app=$app --key=user)"
    ynh_app_setting_delete --app=$app --key=user
fi

# If db_name doesn't exist, create it
if [ -z "$db_name" ]; then
	db_name=$(ynh_sanitize_dbid --db_name=$app)
	ynh_app_setting_set --app=$app --key=db_name --value=$db_name
fi

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

# If admin_mail_html doesn't exist, create it
if [ -z "$admin_mail_html" ]; then
	admin_mail_html=1
	ynh_app_setting_set --app=$app --key=admin_mail_html --value=$admin_mail_html
fi

# If fpm_footprint doesn't exist, create it
if [ -z "$fpm_footprint" ]; then
	fpm_footprint=low
	ynh_app_setting_set --app=$app --key=fpm_footprint --value=$fpm_footprint
fi

# If fpm_usage doesn't exist, create it
if [ -z "$fpm_usage" ]; then
	fpm_usage=low
	ynh_app_setting_set --app=$app --key=fpm_usage --value=$fpm_usage
fi

# If with_sftp doesn't exist, create it
if [ -z "$with_sftp" ]; then
	with_sftp=1
	ynh_app_setting_set --app=$app --key=with_sftp --value=$with_sftp
fi

# If with_sftp doesn't exist, create it
if [ -z "$php_custom" ]; then
	php_custom="7.3"
	ynh_app_setting_set --app=$app --key=php_custom --value=$php_custom
fi

# Cleaning legacy permissions
if ynh_legacy_permissions_exists; then
	ynh_legacy_permissions_delete_all

	ynh_app_setting_delete --app=$app --key=is_public
fi

#=================================================
# BACKUP BEFORE UPGRADE THEN ACTIVE TRAP
#=================================================
ynh_script_progression --message="Backing up the app before upgrading (may take a while)..." --weight=3

# 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

#=================================================
# ACTIVATE MAINTENANCE MODE
#=================================================
ynh_script_progression --message="Activating maintenance mode..."

ynh_maintenance_mode_ON

#=================================================
# STANDARD UPGRADE STEPS
#=================================================
# NGINX CONFIGURATION
#=================================================

ynh_script_progression --message="Upgrading NGINX web server configuration..." --weight=2

# Create a dedicated NGINX config
ynh_add_nginx_config

#=================================================
# CREATE DEDICATED USER
#=================================================
ynh_script_progression --message="Making sure dedicated system user exists..." --weight=2

if [ $with_sftp -eq 1 ]
then
    groups="sftp.app"
else
    groups=""
fi

ynh_system_user_create --username=$app --home_dir="$final_path" --groups="$groups"

if [ -n "$password" ]
then
    # Add the password to this user
    chpasswd <<< "${app}:${password}"
fi

# Change the user group for previous my_webapp install script
groupadd -f "$app"
usermod -g "$app" "$app"

#=================================================
# PHP-FPM CONFIGURATION
#=================================================

ynh_script_progression --message="Upgrading PHP-FPM configuration..." --weight=2

# Create a dedicated PHP-FPM config
ynh_add_fpm_config --usage=$fpm_usage --footprint=$fpm_footprint --phpversion=$YNH_PHP_VERSION

#=================================================
# SPECIFIC UPGRADE
#=================================================

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

chown -R $app:www-data "$final_path"
# Home directory of the user needs to be owned by root to allow
# SFTP connections
chown root:root "$final_path"
setfacl -m g:$app:r-x "$final_path"
setfacl -m g:www-data:r-x "$final_path"
chmod o-rwx "$final_path"

#=================================================
# RELOAD NGINX
#=================================================
ynh_script_progression --message="Reloading NGINX web server..."

ynh_systemd_action --service_name=nginx --action=reload

#=================================================
# DEACTIVE MAINTENANCE MODE
#=================================================
ynh_script_progression --message="Disabling maintenance mode..."

ynh_maintenance_mode_OFF

#=================================================
# SEND A README FOR THE ADMIN
#=================================================

# Get main domain and buid the url of the admin panel of the app.
admin_panel="https://$(grep portal_domain /etc/ssowat/conf.json | cut -d'"' -f4)/yunohost/admin/#/apps/$app"

# Build the changelog
# Get the value of admin_mail_html
admin_mail_html=$(ynh_app_setting_get $app admin_mail_html)
admin_mail_html="${admin_mail_html:-0}"
# If a html email is required. Apply html to the changelog.
if [ "$admin_mail_html" -eq 1 ]; then
    format=html
else
    format=plain
fi
ynh_app_changelog --format=$format

echo "You can configure this app easily by using the experimental __URL_TAG1__config-panel feature__URL_TAG2__$admin_panel/config-panel__URL_TAG3__.
You can also find some specific actions for this app by using the experimental __URL_TAG1__action feature__URL_TAG2__$admin_panel/actions__URL_TAG3__.

If you're facing an issue or want to improve this app, please open a new issue in this __URL_TAG1__project__URL_TAG2__https://github.com/YunoHost-Apps/my_webapp_ynh__URL_TAG3__.

---

Changelog since your last upgrade:
$(cat changelog)" > mail_to_send

ynh_send_readme_to_admin --app_message="mail_to_send" --recipients=root --type=upgrade

#=================================================
# END OF SCRIPT
#=================================================

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