#!/bin/bash
set -e
set -o pipefail

function find_in_docker_log {
    CONTAINER_NAME=$1
    TIMEOUT=$2
    SUBSTRING=$3
    COMMAND="docker logs -f $CONTAINER_NAME"
    expect -c "log_user 0; set timeout $TIMEOUT; spawn $COMMAND; expect \"$SUBSTRING\" { exit 0 } timeout { exit 1 }"
}

IMAGE_NAME=single_horizontal.jpg
CONTAINER_NAME=alpr_test

# Start the container
docker run --name $CONTAINER_NAME -d flyingtophat/alpr
    http://127.0.0.1/$IMAGE_NAME \ # URL to poll for photo
    http://127.0.0.1/ \ # URL to post the results (not used for test)
    --verbose \ # Increase verbosity to ensure data that would be posted is printed to stdout
    --interval 1 # Small increment to speed up tests

# Run the image with the localhost URL to poll
docker run --name $CONTAINER_NAME -d flyingtophat/alpr http://127.0.0.1/$IMAGE_NAME http://127.0.0.1/ --verbose

# Start web-server to serve test data
docker exec -d $CONTAINER_NAME python -m SimpleHTTPServer 80

# Copy test data to the working directory for Python's HTTP Server to serve
docker cp ./test_files/$TEST_DATA_FILENAME $CONTAINER_NAME:/opt/docker-alpr/

# Wait for license plate to appear in image's output
find_in_docker_log $CONTAINER_NAME $TIMEOUT "WR62XDF"
TEST_RESULT=$?

# Report test status
docker rm -f $CONTAINER_NAME
if [ $TEST_RESULT == 0 ]; then
    echo "SUCCESS"
else
    echo "FAILED"
    exit 1
fi