#! /bin/bash

# shellcheck disable=SC2094

# shellcheck source=../scripts/helpers/index.sh
source /usr/local/bin/helpers/index.sh

DATABASE=/tmp/docker-mailserver/dovecot-masters.cf

function __usage
{
  printf '%s' "${PURPLE}ADDDOVECOTMASTERUSER${RED}(${YELLOW}8${RED})

${ORANGE}NAME${RESET}
    addmasteruser - add a dovecot master user (for POP3/IMAP administration)

${ORANGE}SYNOPSIS${RESET}
    ./setup.sh dovecot-master add <USERNAME> [<PASSWORD>]

${ORANGE}OPTIONS${RESET}
    ${BLUE}Generic Program Information${RESET}
        help       Print the usage information.

${ORANGE}EXAMPLES${RESET}
    ${LWHITE}./setup.sh dovecot-master add test-user${RESET}
        Add the dovecot master account 'test-user'. You will be prompted
        to input a password afterwards since no password was supplied.

${ORANGE}EXIT STATUS${RESET}
    Exit status is 0 if command was successful. If wrong arguments are provided
    or arguments contain errors, the script will exit early with exit status 1.

"
}

[[ ${1:-} == 'help' ]] && { __usage ; exit 0 ; }

USERNAME="${1}"
shift
PASSWD="${*}"

[[ -z ${USERNAME} ]] && { __usage ; _exit_with_error 'No username specified' ; }

touch "${DATABASE}"
_create_lock # Protect config file with lock to avoid race conditions
if grep -qi "^$(_escape "${USERNAME}")|" "${DATABASE}"
then
  _exit_with_error "User '${USERNAME}' already exists"
fi

if [[ -z ${PASSWD} ]]
then
  read -r -s -p "Enter Password: " PASSWD
  echo
  [[ -z ${PASSWD} ]] && _exit_with_error "Password must not be empty"
fi

HASH="$(doveadm pw -s SHA512-CRYPT -u "${USERNAME}" -p "${PASSWD}")"
echo "${USERNAME}|${HASH}" >> "${DATABASE}"