#!/bin/sh
set -eu

if [ "$#" -ne 1 ]; then
    echo "usage: $0 SCORE_TILE8_GATE" >&2
    exit 2
fi
runner=$1
fixture=$(mktemp -d /private/tmp/gem-score-tile8-overlap.XXXXXX)
server_pid=
cleanup()
{
    if [ -n "$server_pid" ] && kill -0 "$server_pid" 2>/dev/null; then
        kill "$server_pid"
        wait "$server_pid" 2>/dev/null || true
    fi
    rm -rf "$fixture"
}
trap cleanup EXIT INT TERM HUP

mkdir -p "$fixture/build"
printf 'fixture model\n' > "$fixture/model.gguf"
printf '%s\n' '#!/bin/sh' 'while :; do sleep 1; done' > "$fixture/build/gem"
chmod +x "$fixture/build/gem"
"$fixture/build/gem" serve &
server_pid=$!

attempt=0
while ! pgrep -f "$fixture/build/gem serve" >/dev/null 2>&1; do
    attempt=$((attempt + 1))
    if [ "$attempt" -ge 50 ]; then
        echo "fixture production process did not become visible" >&2
        exit 1
    fi
    sleep 0.02
done

set +e
GEM_MODEL_SHA256=0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef \
GEM_SCORE_TILE8_BUILD="$fixture/missing-build" \
    "$runner" "$fixture/model.gguf" "$fixture/output" \
    > "$fixture/stdout" 2> "$fixture/stderr"
exit_code=$?
set -e
if [ "$exit_code" -ne 1 ] ||
   ! grep -q 'refusing to overlap a production server Metal workload' "$fixture/stderr" ||
   [ -e "$fixture/output" ]; then
    echo "score-tile gate did not fail closed around a production workload" >&2
    exit 1
fi