#!/sbin/openrc-run
# Copyright 1999-2015 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2

extra_started_commands="reload"

DAEMON="/usr/sbin/icinga2"
ICINGA2_ERROR_LOG="/var/log/icinga2/error.log"
ICINGA2_STARTUP_LOG="/var/log/icinga2/startup.log"
ICINGA2_LOG="/var/log/icinga2/icinga2.log"
ICINGA2_CONFIG_FILE="/etc/icinga2/icinga2.conf"
ICINGA2_RUN_DIR="/run/icinga2"
ICINGA2_STATE_DIR="/var/cache/icinga2"
ICINGA2_CMD_DIR="${ICINGA2_RUN_DIR}/cmd"
ICINGA2_PID_FILE="${ICINGA2_RUN_DIR}/icinga2.pid"
ICINGA2_DAEMON_ARGS="daemon -c $ICINGA2_CONFIG_FILE -e $ICINGA2_ERROR_LOG -d"

depend() {
    need net
}

checkconfig() {
    if [ ! -e "$ICINGA2_CONFIG_FILE" ]; then
       ewarn "Config file '$ICINGA2_CONFIG_FILE' does not exist."
       eend 1
    fi

    ICINGA2_USER=$($DAEMON variable get --current RunAsUser)
    if [ $? != 0 ]; then
        eerror "Could not fetch RunAsUser variable: '$ICINGA2_USER'."
        return 1
    fi
    ICINGA2_GROUP=$($DAEMON variable get --current RunAsGroup)
    if [ $? != 0 ]; then
        eerror "Could not fetch RunAsGroup variable: '$ICINGA2_GROUP'."
        return 1
    fi

    checkpath -d -m 0750 -o $ICINGA2_USER:$ICINGA2_GROUP $ICINGA2_RUN_DIR
    checkpath -d -m 0750 -o $ICINGA2_USER:$ICINGA2_GROUP $ICINGA2_STATE_DIR
    checkpath -d -m 2750 -o $ICINGA2_USER:$ICINGA2_GROUP $ICINGA2_CMD_DIR

    if ! $DAEMON daemon -c $ICINGA2_CONFIG_FILE -C > $ICINGA2_STARTUP_LOG 2>&1; then
        eerror "Icinga2 detected configuration errors. Check '$ICINGA2_STARTUP_LOG' for details."
        return 1
    fi
}

start() {
    checkconfig || return 1

    ebegin "Starting icinga2"
    start-stop-daemon --start --exec "${DAEMON}" \
        --pidfile "${ICINGA2_PID_FILE}" \
        -- $ICINGA2_DAEMON_ARGS > $ICINGA2_STARTUP_LOG 2>&1
    local retval=$?
    if [ $retval -ne 0 ]; then
        ewarn "Error starting icinga2. '$ICINGA2_STARTUP_LOG' for details."
    fi
    eend $retval
}

stop() {
    ebegin "Stopping icinga2"
    start-stop-daemon \
        --stop \
        --pidfile $ICINGA2_PID_FILE \
        --retry "SIGTERM/15 SIGKILL/30" \
        --progress
    eend $?
}

reload() {
    checkconfig || return 1

    ebegin "Reloading icinga2"
    start-stop-daemon --signal HUP --pidfile "$ICINGA2_PID_FILE"

    local retval=$?
    if [ $retval -ne 0 ]; then
        ewarn "Error reloading icinga2."
    fi
    eend $retval
}