#!/usr/bin/env bash
mkdir -p logs

clean_up() {
    r=$(killall ndn-traffic-server 2>&1)
    r=$(sudo killall nfd 2>&1)
}

# Start NFD.
sudo nfd &> logs/nfd.log &
sleep 2

# Start ndn-traffic-server to serve `ndn:/test-caching`, FreshnessPeriod=2800ms
ndn-traffic-server NDNTrafficServer.conf > logs/server.log 2>&1 &
sleep 1

# Invoke ndnpeek to send Interest `ndn:/test-caching/A`, MustBeFresh=yes. Fail if this Interest is unanswered.
output=$(ndnpeek -fp ndn:/test-caching/A)
if [[ $output != 'AAAAAAAA' ]]
then
    echo "FAIL: Expected data for first interest: 'AAAAAAAA', Actual: '$output'"
    clean_up
    exit 1
fi

# Pause 1000ms.
sleep 1

# Invoke ndnpeek to send Interest `ndn:/test-caching/A`, MustBeFresh=yes. Fail if this Interest is unanswered.
output=$(ndnpeek -fp ndn:/test-caching/A)
if [[ $output != 'AAAAAAAA' ]]
then
    echo "FAIL: Expected data for second interest: 'AAAAAAAA', Actual: '$output'"
    clean_up
    exit 2
fi

# Kill ndn-traffic-server. Check "total Interests received" equals 1.
killall ndn-traffic-server
sleep 5
output=$(grep 'Total Interests Received' logs/server.log | head -1 | cut -d = -f2 | cut -d' ' -f2)
if [[ $output != '1' ]]
then
    echo "FAIL: Expected ndn-traffic-server to receive 1 interest. Actual: $output"
    clean_up
    exit 3
fi

# Invoke ndnpeek to send Interest `ndn:/test-caching/A`, MustBeFresh=yes. Fail if this Interest is answered with Data.
output=$(ndnpeek -fp ndn:/test-caching/A)
if [[ $? == "0" ]]
then
    echo "FAIL: Expected no data to be received in response to third interest. Received: '$output'"
    clean_up
    exit 4
fi
sleep 1

# Invoke ndnpeek to send Interest `ndn:/test-caching/A` without MustBeFresh. Fail if this Interest is unanswered.
output=$(ndnpeek -p ndn:/test-caching/A)
if [[ $output != 'AAAAAAAA' ]]
then
    echo "FAIL: Expected data for fourth interest: 'AAAAAAAA', Actual: '$output'"
    clean_up
    exit 5
fi

# clean up
clean_up
echo "ContentStore and freshness test scenario PASSED"