#!/bin/bash
# info: Add mail domain smtp relay support
# options: USER DOMAIN HOST [USERNAME] [PASSWORD] [PORT]
#
# example: v-add-mail-domain-smtp-relay user domain.tld srv.smtprelay.tld uname123 pass12345
#
# This function adds mail domain smtp relay support.

#----------------------------------------------------------#
#                Variables & Functions                     #
#----------------------------------------------------------#

# Argument definition
user=$1
domain=$2
host=$3
username=$4
password=$5
port=${6-587}

# Includes
# shellcheck source=/etc/hestiacp/hestia.conf
source /etc/hestiacp/hestia.conf
# shellcheck source=/usr/local/hestia/func/main.sh
source $HESTIA/func/main.sh
# load config file
source_conf "$HESTIA/conf/hestia.conf"

#----------------------------------------------------------#
#                    Verifications                         #
#----------------------------------------------------------#

check_args '3' "$#" 'USER DOMAIN HOST [USERNAME] [PASSWORD] [PORT]'
is_format_valid 'port' 'user' 'domain' 'host'
is_system_enabled "$MAIL_SYSTEM" 'MAIL_SYSTEM'
is_object_valid 'user' 'USER' "$user"
is_object_unsuspended 'user' 'USER' "$user"
is_object_valid 'mail' 'DOMAIN' "$domain"
is_object_unsuspended 'mail' 'DOMAIN' "$domain"
is_password_valid "$password" "Password"
is_username_format_valid "$username" "Username"
format_no_quotes "$password" "Password"

# Perform verification if read-only mode is enabled
check_hestia_demo_mode

#----------------------------------------------------------#
#                       Action                             #
#----------------------------------------------------------#

cat > /etc/exim4/domains/${domain}/smtp_relay.conf << EOL
host:$host
port:$port
user:$username
pass:$password
EOL

#----------------------------------------------------------#
#                       Hestia                             #
#----------------------------------------------------------#

# Adding smtp relay values in config
if [ -z "$U_SMTP_RELAY" ]; then
	add_object_key 'mail' 'DOMAIN' "$domain" 'U_SMTP_RELAY' 'ACCOUNTS'
	add_object_key 'mail' 'DOMAIN' "$domain" 'U_SMTP_RELAY_HOST' 'ACCOUNTS'
	add_object_key 'mail' 'DOMAIN' "$domain" 'U_SMTP_RELAY_PORT' 'ACCOUNTS'
	add_object_key 'mail' 'DOMAIN' "$domain" 'U_SMTP_RELAY_USERNAME' 'ACCOUNTS'
	add_object_key 'mail' 'DOMAIN' "$domain" 'U_SMTP_RELAY_PASSWORD' 'ACCOUNTS'
fi

update_object_value 'mail' 'DOMAIN' "$domain" '$U_SMTP_RELAY' 'true'
update_object_value 'mail' 'DOMAIN' "$domain" '$U_SMTP_RELAY_HOST' "$host"
update_object_value 'mail' 'DOMAIN' "$domain" '$U_SMTP_RELAY_PORT' "$port"
update_object_value 'mail' 'DOMAIN' "$domain" '$U_SMTP_RELAY_USERNAME' "$username"
update_object_value 'mail' 'DOMAIN' "$domain" '$U_SMTP_RELAY_PASSWORD' "$password"

# Logging
$BIN/v-log-action "$user" "Info" "Mail" "SMTP Relay enabled (Domain: $domain, Host: $host, Port: $port)."
log_event "$OK" "$ARGUMENTS"

exit