#!/bin/bash

#=================================================
# GENERIC STARTING
#=================================================
# IMPORT GENERIC HELPERS
#=================================================

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

#=================================================
# LOAD SETTINGS
#=================================================
ynh_script_progression --message="Loading installation settings..." --weight=3

app=$YNH_APP_INSTANCE_NAME

domain=$(ynh_app_setting_get --app=$app --key=domain)
path_url=$(ynh_app_setting_get --app=$app --key=path)
admin=$(ynh_app_setting_get --app=$app --key=admin)
is_public=$(ynh_app_setting_get --app=$app --key=is_public)
final_path=$(ynh_app_setting_get --app=$app --key=final_path)
db_pwd=$(ynh_app_setting_get --app=$app --key=mysqlpwd)
db_name=$(ynh_app_setting_get --app=$app --key=db_name)

overwrite_nginx=$(ynh_app_setting_get --app=$app --key=overwrite_nginx)
overwrite_phpfpm=$(ynh_app_setting_get --app=$app --key=overwrite_phpfpm)
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)
phpversion=$(ynh_app_setting_get --app=$app --key=phpversion)

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

upgrade_type=$(ynh_check_app_version_changed)

#=================================================
# ENSURE DOWNWARD COMPATIBILITY
#=================================================
ynh_script_progression --message="Ensuring 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=$app --key=final_path --value=$final_path
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 is_public doesn't exist, create it
if [ -z "$is_public" ]; then
    public_check=$(ynh_app_setting_get --app=$app --key=skipped_uris)
    # If skipped_uris is empty, that was a public installation.
    if [ -z "$public_check" ]; then
        is_public=1
    else
        is_public=0
    fi
    ynh_app_setting_set --app=$app --key=is_public --value=$is_public
else
    # Fix is_public as a boolean
    if [ "$is_public" = "Yes" ]; then
        ynh_app_setting_set --app=$app --key=is_public --value=1
        is_public=1
    elif [ "$is_public" = "No" ]; then
        ynh_app_setting_set --app=$app --key=is_public --value=0
        is_public=0
    fi
fi

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

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

#=================================================
# BACKUP BEFORE UPGRADE THEN ACTIVE TRAP
#=================================================
ynh_script_progression --message="Backing up the app before upgrading (may take a while)..." --weight=4

# 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

#=================================================
# Migrate legacy permissions to new system
#=================================================
if ynh_legacy_permissions_exists
then
	ynh_legacy_permissions_delete_all

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

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

ynh_maintenance_mode_ON

#=================================================
# STANDARD UPGRADE STEPS
#=================================================
# DOWNLOAD, CHECK AND UNPACK SOURCE
#=================================================

if [ "$upgrade_type" == "UPGRADE_APP" ]
then
    ynh_script_progression --message="Upgrading source files..." --weight=3
    # Download, check integrity, uncompress and patch the source from app.src
    ynh_setup_source --dest_dir="$final_path"
fi

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

# Overwrite the nginx configuration only if it's allowed
if [ $overwrite_nginx -eq 1 ]
then
    ynh_script_progression --message="Upgrading nginx web server configuration..." --weight=2
    # Create a dedicated nginx config
    ynh_add_nginx_config
fi

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

# Create a dedicated user (if not existing)
ynh_system_user_create --username=$app

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

# Overwrite the php-fpm configuration only if it's allowed
if [ $overwrite_phpfpm -eq 1 ]
then
    ynh_script_progression --message="Upgrading PHP-FPM configuration..." --weight=2
    # Create a dedicated php-fpm config
    ynh_add_fpm_config --usage=$fpm_usage --footprint=$fpm_footprint
fi

#=================================================
# SPECIFIC UPGRADE
#=================================================
# RETRIEVE SYNCHRONISATION CODE
#=================================================

code_sync=$(mysql -h localhost -u $db_name -p$db_pwd -s $db_name -e 'SELECT value FROM leed_configuration WHERE `key`="synchronisationCode"' | sed -n 1p)

#=================================================
# SETUP CRON FILE FOR SYNCHRONISATION
#=================================================

ynh_replace_string --match_string="__DOMAIN__" --replace_string="$domain" --target_file=../conf/cron_leed
ynh_replace_string --match_string="__PATH__" --replace_string="$path_url" --target_file=../conf/cron_leed
ynh_replace_string --match_string="__CODESYNC__" --replace_string="$code_sync" --target_file=../conf/cron_leed
cp ../conf/cron_leed /etc/cron.d/$app

#=================================================
# SECURING FILES AND DIRECTORIES
#=================================================

# Set permissions on app files
chown -R root: $final_path
# $app need write permissions in plugins, cache and updates
# Clear leed cache
ynh_secure_remove --file=$final_path/cache
mkdir -p $final_path/cache
chown -R $app $final_path/cache $final_path/plugins $final_path/updates

#=================================================
# UPGRADE WITH CURL
#=================================================

if [ "$upgrade_type" == "UPGRADE_APP" ]
then
    ynh_script_progression --message="Upgrading Leed with cURL..." --weight=4
    # Set the app as temporarily public for curl call
    ynh_app_setting_set --app=$app --key=unprotected_uris --value="/"
    # Regen SSOwat configuration
    yunohost app ssowatconf
    # Start the upgrade procedure of leed.
    ynh_local_curl "/"
fi

#=================================================
# GENERIC FINALISATION
#=================================================
# UPGRADE FAIL2BAN
#=================================================
ynh_script_progression --message="Reconfiguring Fail2Ban..." --weight=8

# Create a dedicated fail2ban config
ynh_add_fail2ban_config --logpath="/var/log/nginx/${domain}-error.log" --failregex="PHP message: Leed: wrong login for .* client: <HOST>" --max_retry=5

#=================================================
# SETUP SSOWAT
#=================================================
ynh_script_progression --message="Upgrading SSOwat configuration..."

# Make app private if necessary
if [ $is_public -eq 0 ]
then
    # Remove the public access
    ynh_app_setting_delete --app=$app --key=unprotected_uris
    # Set the action.php script public for the cron task
    ynh_app_setting_set --app=$app --key=skipped_uris --value="/action.php"
fi

#=================================================
# RELOAD NGINX
#=================================================
ynh_script_progression --message="Reloading nginx web server..." --weight=2

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/leed_ynh__URL_TAG3__.

---

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

ynh_send_readme_to_admin --app_message="mail_to_send" --recipients="$admin" --type=upgrade

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

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