set -e

# cd into script's directory
cd -- "$( dirname -- "${BASH_SOURCE[0]}" )" &> /dev/null
root=$(pwd)

export UTILS="$root"/utils

REGEXS=()

while [[ $# -gt 0 ]]; do
  case $1 in
    -h|--help)
        cat <<EOF
USAGE: [flags] [test regexs...]
FLAGS
    --keep-tmp
    --verbose (-v)
    --help    (-h)
EOF
      exit 1
      ;;
    -v|--verbose)
      VERBOSE=1
      shift
      ;;
    --keep-tmp)
      KEEP_TMP=1
      shift
      ;;
    *)
      REGEXS+=("$1")
      shift
      ;;
  esac
done

TMPDIR="$(mktemp --tmpdir -d isle-tests.XXXXXX)"
if [ -z "$KEEP_TMP" ]; then trap 'rm -rf $TMPDIR' EXIT; fi

export TMPDIR
echo "tmp dir is $TMPDIR"

# Blackhole these directories so that tests don't accidentally use the host's
# real ones.
export XDG_RUNTIME_DIR=/dev/null
export XDG_DATA_HOME=/dev/null

test_files=$(
    find ./cases -type f -name '*.sh' \
    | sed "s|^\./cases/||" \
    | grep -v entrypoint.sh \
    | sort
)

for r in "${REGEXS[@]}"; do
    test_files="$(echo "$test_files" | grep "$r")"
done

echo -e "number of tests: $(echo "$test_files" | wc -l)\n"
for file in $test_files; do
    echo "Running test case: $file"

    if [ -z "$VERBOSE" ]; then
        output="$TMPDIR/$file.log"
        mkdir -p "$(dirname "$output")"
    else
        output=/dev/stdout
    fi

    (
        export TEST_CASE_FILE="$file"

        if ! $SHELL -e -x "$root/cases/$file" >"$output" 2>&1; then
            echo "$file FAILED"
            if [ -z "$VERBOSE" ]; then
                echo "output of test is as follows"
                echo "------------------------------"
                cat "$output"
                echo "------------------------------"
            fi
            exit 1
        fi
    ) || TESTS_FAILED=1

    if [ -n "$TESTS_FAILED" ]; then break; fi
done


# Clean up any shared running clusters. Each cleanup script is responsible for
# figuring out if its shared cluster was actually instantiated during any tests.
echo "Running any cleanup tasks"

# shellcheck source=./utils/cleanup-single-node-cluster.sh
source "$UTILS"/cleanup-single-node-cluster.sh

if [ -z "$TESTS_FAILED" ]; then echo -e '\nall tests succeeded!'; fi