#!/bin/bash

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

ynh_app_setting_set_default --key=php_memory_limit --value=64M

#=================================================
# ACTIVATE MAINTENANCE MODE
#=================================================

ynh_maintenance_mode_ON

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

if [ -z "${admin:-}" ]; then
	ynh_mysql_db_shell <<< "select MAX(user_login) from wp_users where user_status=0 INTO OUTFILE '/tmp/wordpressuser';"

	admin=$(cat /tmp/wordpressuser)
	ynh_safe_rm /tmp/wordpressuser
	ynh_app_setting_set --key=admin --value=$admin
fi

# FIXMEhelpers2.1: maybe replace with: ynh_app_setting_set_default --key=language --value=$(grep WPLANG $install_dir/wp-config.php | cut -d"'" -f4)
if [ -z "${language:-}" ]; then
	language=$(grep WPLANG $install_dir/wp-config.php | cut -d"'" -f4)
	ynh_app_setting_set --key=language --value=$language
fi

# Fix multisite as a boolean
if [ "${multisite,,}" = "yes" ]; then
	ynh_app_setting_set --key=multisite --value=1
	multisite=1
elif [ "${multisite,,}" = "no" ]; then
	ynh_app_setting_set --key=multisite --value=0
	multisite=0
fi

# If some 'add_filter' are still in wp_config, remove them
if grep add_filter.*auto_update $install_dir/wp-config.php; then
	sed --in-place '/add_filter.*auto_update/d' $install_dir/wp-config.php
fi

# If fpm_footprint doesn't exist, create it
if [ -z "${fpm_footprint:-}" ]; then
    fpm_footprint=medium
#REMOVEME? Everything about fpm_footprint is removed in helpers2.1... |     ynh_app_setting_set --key=fpm_footprint --value=$fpm_footprint
fi

# If fpm_free_footprint doesn't exist, create it
if [ -z "${fpm_free_footprint:-}" ]; then
	fpm_free_footprint=0
#REMOVEME? Everything about fpm_free_footprint is removed in helpers2.1... | 	ynh_app_setting_set --key=fpm_free_footprint --value=$fpm_free_footprint
fi

# If fpm_usage doesn't exist, create it
if [ -z "${fpm_usage:-}" ]; then
    fpm_usage=low
#REMOVEME? Everything about fpm_usage is removed in helpers2.1... |     ynh_app_setting_set --key=fpm_usage --value=$fpm_usage
fi

# Replace wp-fail2ban by wp-fail2ban-redux
ynh_hide_warnings wget --no-verbose https://raw.githubusercontent.com/wp-cli/builds/gh-pages/phar/wp-cli.phar --output-document=$install_dir/wp-cli.phar
wpcli_alias="php$php_version $install_dir/wp-cli.phar --allow-root --path=$install_dir"
plugin_network=""
if [ $multisite -eq 1 ]; then
        plugin_network="--network"
fi
$wpcli_alias plugin is-installed wp-fail2ban && $wpcli_alias plugin deactivate $plugin_network wp-fail2ban && $wpcli_alias plugin uninstall wp-fail2ban
$wpcli_alias plugin is-installed wp-fail2ban-redux || $wpcli_alias plugin install wp-fail2ban-redux

# Remove old ldap plugin
$wpcli_alias plugin is-installed simple-ldap-login && $wpcli_alias plugin deactivate $plugin_network simple-ldap-login && $wpcli_alias plugin uninstall simple-ldap-login

#=================================================
# NGINX CONFIGURATION
#=================================================
ynh_script_progression "Upgrading NGINX web server configuration..."

ynh_config_add_nginx

#=================================================
# PHP-FPM CONFIGURATION
#=================================================
ynh_script_progression "Upgrading PHP-FPM configuration..."

 # Create a dedicated PHP-FPM config
ynh_config_add_phpfpm

#=================================================
# SAVE THE CONFIG FILE IF IT HAS BEEN MODIFIED
#=================================================

# Verify the checksum of a file, stored by `ynh_store_file_checksum` in the install script.
ynh_backup_if_checksum_is_different "$install_dir/wp-config.php"

#=================================================
# CONFIGURE MULTISITE
#=================================================
ynh_script_progression "Configuring multisite..."

if [ $multisite -eq 1 ]
then
	ynh_replace --match="#--MULTISITE--" --replace="" --file=/etc/nginx/conf.d/$domain.d/$app.conf

    ynh_store_file_checksum "/etc/nginx/conf.d/$domain.d/$app.conf"

	ynh_systemctl --service=nginx --action=reload

	db_prefix=$(grep '^$table_prefix' "$install_dir/wp-config.php" | sed "s/.*'\(.*\)'.*/\1/" )

	ynh_replace --match="__DB_PREFIX__" --replace="$db_prefix" --file=../conf/sql/multisite.sql
	ynh_replace --match="__APP__" --replace="$app" --file=../conf/sql/multisite.sql
	ynh_replace --match="__LENGTH__" --replace="$((${#app} + 108))" --file=../conf/sql/multisite.sql

	ynh_mysql_db_shell < ../conf/sql/multisite.sql
	plugin_network="--network"
else
	multisite=0
	db_prefix=$(grep '^$table_prefix' "$install_dir/wp-config.php" | sed "s/.*'\(.*\)'.*/\1/" )

	ynh_replace --match="__DB_PREFIX__" --replace="$db_prefix" --file=../conf/sql/single.sql
	ynh_replace --match="__APP__" --replace="$app" --file=../conf/sql/single.sql
	ynh_replace --match="__LENGTH__" --replace="$((${#app} + 108))" --file=../conf/sql/single.sql

	ynh_mysql_db_shell < ../conf/sql/single.sql
	plugin_network=""
	if ynh_permission_has_user --permission="main" --user="visitor"
	then
		ynh_replace --match="//--PUBLIC--define" --replace="define" --file=$install_dir/wp-config.php
	fi
fi
ynh_app_setting_set --key=multisite --value=$multisite

#=================================================
# UPDATE WORDPRESS PLUGINS
#=================================================
ynh_script_progression "Updating plugins"

# wget -nv https://raw.githubusercontent.com/wp-cli/builds/gh-pages/phar/wp-cli.phar -O $install_dir/wp-cli.phar
# wpcli_alias="php$php_version $install_dir/wp-cli.phar --allow-root --path=$install_dir"
update_plugin () {
	( $wpcli_alias plugin is-installed $1 && $wpcli_alias plugin update $1 ) || $wpcli_alias plugin install $1
}
update_plugin authldap
$wpcli_alias plugin activate authldap $plugin_network
update_plugin companion-auto-update
$wpcli_alias plugin activate companion-auto-update $plugin_network

update_plugin wp-fail2ban-redux
$wpcli_alias plugin activate wp-fail2ban-redux $plugin_network

# Disable broken plugin http-authentication
$wpcli_alias plugin is-installed http-authentication && $wpcli_alias plugin deactivate http-authentication $plugin_network

# Set file and directories ownership
mkdir -p $install_dir/wp-content/uploads
mkdir -p $install_dir/wp-content/temp
#REMOVEME? Assuming the install dir is setup using ynh_setup_source, the proper chmod/chowns are now already applied and it shouldn't be necessary to tweak perms | chown -R $app:www-data "$install_dir"
find "$install_dir" -type d -exec chmod 750 {} \;
find "$install_dir" -type f -exec chmod 640 {} \;
find "$install_dir/wp-content/uploads" -type d -exec chmod 770 {} \;
find "$install_dir/wp-content/temp" -type d -exec chmod 770 {} \;
setfacl -Rm d:g:www-data:rwX "$install_dir/wp-content/uploads"
setfacl -Rm d:g:www-data:rwX "$install_dir/wp-content/temp"

#=================================================
# STORE THE CHECKSUM OF THE CONFIG FILE
#=================================================

# Recalculate and store the checksum of the file for the next upgrade.
ynh_store_file_checksum "$install_dir/wp-config.php"

#REMOVEME? Assuming the file is setup using ynh_config_add, the proper chmod/chowns are now already applied and it shouldn't be necessary to tweak perms | chmod 400 "$install_dir/wp-config.php"
#REMOVEME? Assuming the file is setup using ynh_config_add, the proper chmod/chowns are now already applied and it shouldn't be necessary to tweak perms | chown $app:$app "$install_dir/wp-config.php"

#=================================================
# CREATE A CRON TASK FOR AUTOMATIC UPDATE
#=================================================

echo "# Reach everyday wp-cron.php to trig the internal WordPress cron.
0 3  *  *  * $app php$php_version  $install_dir/wp-cron.php" > /etc/cron.d/$app

#=================================================
# UPGRADE FAIL2BAN
#=================================================
ynh_script_progression "Reconfiguring Fail2Ban..."

# Create a dedicated Fail2Ban config
ynh_config_add_fail2ban --logpath="/var/log/auth.log" --failregex="Authentication (attempt for unknown user|failure for) .* from <HOST>"

#=================================================
# REMOVE WP-CLI.PHAR
#=================================================

ynh_safe_rm $install_dir/wp-cli.phar

#=================================================
# DEACTIVE MAINTENANCE MODE
#=================================================

ynh_maintenance_mode_OFF

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

ynh_script_progression "Upgrade of $app completed"