#!/bin/bash
#
#  Copyright (c) 2018, The OpenThread Authors.
#  All rights reserved.
#
#  Redistribution and use in source and binary forms, with or without
#  modification, are permitted provided that the following conditions are met:
#  1. Redistributions of source code must retain the above copyright
#     notice, this list of conditions and the following disclaimer.
#  2. Redistributions in binary form must reproduce the above copyright
#     notice, this list of conditions and the following disclaimer in the
#     documentation and/or other materials provided with the distribution.
#  3. Neither the name of the copyright holder nor the
#     names of its contributors may be used to endorse or promote products
#     derived from this software without specific prior written permission.
#
#  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
#  AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
#  IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
#  ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
#  LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
#  CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
#  SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
#  INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
#  CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
#  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
#  POSSIBILITY OF SUCH DAMAGE.
#

set -eux

check_otbr_agent()
{
    sudo dbus-send --system \
        --dest=org.freedesktop.DBus \
        --type=method_call \
        --print-reply \
        /org/freedesktop/DBus \
        org.freedesktop.DBus.ListNames | grep -q '"io.openthread.BorderRouter.wpan0"'
}

check_upstart()
{
    echo 'Verify Upstart notification'
    UPSTART_JOB=otbr-agent sudo -E otbr-agent -d7 -v "spinel+hdlc+forkpty://$(command -v ot-rcp)?forkpty-arg=2" &
    sleep 2
    UPSTART_JOB_PID=$!

    if [[ "$(ps --no-headers -o s "${UPSTART_JOB_PID}")" != T ]]; then
        echo 'otbr-agent is not in Stopped state'
        false
    fi

    echo 'Continue otbr-agent'
    sudo pkill -SIGCONT -P "${UPSTART_JOB_PID}"
    sudo kill -SIGCONT "${UPSTART_JOB_PID}"
    sleep 2

    if [[ "$(ps --no-headers -o s "${UPSTART_JOB_PID}")" == T ]]; then
        echo 'otbr-agent did not continue'
        false
    fi
    sudo pkill -P "${UPSTART_JOB_PID}"
    wait
}

main()
{
    RELEASE=1 ./script/bootstrap
    ./script/bootstrap
    INFRA_IF_NAME=eth0 BACKBONE_ROUTER=0 NAT64=1 ./script/setup
    # re-run to ensure the script can run successfully multiple times
    INFRA_IF_NAME=eth0 BACKBONE_ROUTER=0 NAT64=1 ./script/setup
    SOCAT_OUTPUT=/tmp/ot-socat

    if ! command -v ot-rcp; then
        third_party/openthread/repo/script/cmake-build simulation -DOT_COVERAGE=OFF
        PATH=$PATH:build/simulation/examples/apps/ncp
    fi

    check_upstart

    socat -d -d pty,raw,echo=0 pty,raw,echo=0 >/dev/null 2>$SOCAT_OUTPUT &
    while true; do
        if [[ "$(head -n2 $SOCAT_OUTPUT | wc -l)" == 2 ]]; then
            RCP_PTY=$(head -n1 $SOCAT_OUTPUT | grep -o '/dev/.\+')
            HOST_PTY=$(head -n2 $SOCAT_OUTPUT | tail -n1 | grep -o '/dev/.\+')
            break
        fi
        echo 'Waiting for socat ready...'
        sleep 1
    done
    echo "RCP_PTY: ${RCP_PTY}"
    echo "HOST_PTY: ${HOST_PTY}"

    # shellcheck disable=SC2094
    ot-rcp 1 >"${RCP_PTY}" <"${RCP_PTY}" &

    INFRA_IF_NAME=eth0 RADIO_URL="spinel+hdlc+uart://${HOST_PTY}" ./script/console &
    SERVICES_PID=$!
    echo 'Waiting for services to be ready...'
    sleep 30
    check_otbr_agent
    netstat -an | grep 80
    kill "${SERVICES_PID}"
    sudo killall otbr-web || true
    sudo killall otbr-agent || true
    sudo service tayga stop || true
    killall ot-rcp
    killall socat
    jobs
    echo 'Waiting for services to end...'
    wait
}

main "$@"