#!/usr/bin/env bash

# Author:   Zhang Huangbin (zhb _at_ iredmail.org)

#---------------------------------------------------------------------
# This file is part of iRedMail, which is an open source mail server
# solution for Red Hat(R) Enterprise Linux, CentOS, Debian and Ubuntu.
#
# iRedMail is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# iRedMail is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with iRedMail.  If not, see <http://www.gnu.org/licenses/>.
#---------------------------------------------------------------------

# Variables for PostgreSQL database server and related.
# PGSQL_SERVER_ADDRESS and PGSQL_SERVER_PORT are defined in conf/global.
# SQL_SERVER_ADDRESS and SQL_SERVER_PORT are defined in dialog/config_via_dialog.sh.

export SYS_USER_PGSQL='postgres'
export SYS_GROUP_PGSQL='postgres'

export PGSQL_RC_SCRIPT_NAME='postgresql'

export PGSQL_INIT_SQL_SAMPLE="${RUNTIME_DIR}/pgsql_init.pgsql"

if [ X"${DISTRO}" == X'RHEL' ]; then
    export PGSQL_USER_HOMEDIR='/var/lib/pgsql'
    export PGSQL_DATA_DIR="${PGSQL_USER_HOMEDIR}/data"

    export PGSQL_CONF_POSTGRESQL="${PGSQL_DATA_DIR}/postgresql.conf"
    export PGSQL_CONF_PG_HBA="${PGSQL_DATA_DIR}/pg_hba.conf"

elif [ X"${DISTRO}" == X'DEBIAN' -o X"${DISTRO}" == X'UBUNTU' ]; then
    # Debian 12
    [[ X"${DISTRO_CODENAME}" == X'bookworm' ]] && export PGSQL_VERSION='15'
    # Debian 13
    [[ X"${DISTRO_CODENAME}" == X'trixie' ]] && export PGSQL_VERSION='17'
    # Ubuntu 24.04 (noble)
    [[ X"${DISTRO_CODENAME}" == X'noble' ]] && export PGSQL_VERSION='16'
    # Ubuntu 26.04 (resolute)
    [[ X"${DISTRO_CODENAME}" == X'resolute' ]] && export PGSQL_VERSION='18'

    export PGSQL_USER_HOMEDIR='/var/lib/postgresql'
    export PGSQL_DATA_DIR="/var/lib/postgresql/${PGSQL_VERSION}/main"
    export PGSQL_CONF_DIR="/etc/postgresql/${PGSQL_VERSION}/main"
    export PGSQL_CONF_POSTGRESQL="${PGSQL_CONF_DIR}/postgresql.conf"
    export PGSQL_CONF_PG_HBA="${PGSQL_CONF_DIR}/pg_hba.conf"

elif [ X"${DISTRO}" == X'FREEBSD' ]; then
    export SYS_USER_PGSQL='postgres'
    export SYS_GROUP_PGSQL='postgres'
    export PGSQL_USER_HOMEDIR='/var/db/postgres'
    export PGSQL_VERSION='17'

    export PGSQL_DATA_DIR="${PGSQL_USER_HOMEDIR}/data${PGSQL_VERSION}"
    export PGSQL_CONF_POSTGRESQL="${PGSQL_DATA_DIR}/postgresql.conf"
    export PGSQL_CONF_PG_HBA="${PGSQL_DATA_DIR}/pg_hba.conf"

elif [ X"${DISTRO}" == X'OPENBSD' ]; then
    export SYS_USER_PGSQL='_postgresql'
    export SYS_GROUP_PGSQL='_postgresql'
    export PGSQL_USER_HOMEDIR='/var/postgresql'

    export PGSQL_DATA_DIR="${PGSQL_USER_HOMEDIR}/data"
    export PGSQL_CONF_POSTGRESQL="${PGSQL_DATA_DIR}/postgresql.conf"
    export PGSQL_CONF_PG_HBA="${PGSQL_DATA_DIR}/pg_hba.conf"
fi

export PGSQL_ROOT_USER="${SYS_USER_PGSQL}"
export PGSQL_RC_SCRIPT="${DIR_RC_SCRIPTS}/${PGSQL_RC_SCRIPT_NAME}"

# ~/.pgpass
export PGSQL_DOT_PGPASS="${PGSQL_USER_HOMEDIR}/.pgpass"

# SSL cert/key
export PGSQL_SSL_CERT="${SSL_CERT_DIR}/iRedMail_CA_PostgreSQL.pem"
export PGSQL_SSL_KEY="${SSL_KEY_DIR}/iRedMail_PostgreSQL.key"

# Commands
export PGSQL_BIN_PG_DUMP='/usr/bin/pg_dump'
export PGSQL_BIN_PG_DUMPALL='/usr/bin/pg_dumpall'
if [ X"${DISTRO}" == X"FREEBSD" -o X"${DISTRO}" == X'OPENBSD' ]; then
    export PGSQL_BIN_PG_DUMP='/usr/local/bin/pg_dump'
    export PGSQL_BIN_PG_DUMPALL='/usr/local/bin/pg_dumpall'
fi