#!/usr/bin/env bash
# Part of JoeyLib, Copyright (c) 2026 Scott Duensing, under the MIT License.
# See LICENSE.md for license information.
# SPDX-License-Identifier: MIT
#
# Headless UBER run for the SDL3 port: no X server, no emulator. SDL's dummy
# video driver gives the window and its dummy audio driver plays nothing at
# the real rate, so UBER runs exactly as it does on a desktop, at the host's
# speed. It waits for UBER's "press any key to exit" line in its joeylog.txt
# (the program's folder, build/sdl3/bin) and stops it.
#
# The stage is the generic chunky one, so the hashes must equal the DOS
# port's:
#   scripts/bench-sdl3.sh && tools/diff-uber-hashes tests/goldens/uber/dos.txt build/sdl3/bin/joeylog.txt
# The ops/sec are this machine's, not a reference machine's: compare them
# only run against run.
#
#   scripts/bench-sdl3.sh               # default 300 s timeout
#   TIMEOUT=600 scripts/bench-sdl3.sh   # override
set -euo pipefail

repo=$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)
source "$repo/scripts/lib/joeyEnv.sh"

program=$(joeyExampleProgram uber sdl3)
[ -x "$program" ] || { echo "bench-sdl3: build UBER first (make sdl3)" >&2; exit 2; }
log=$(dirname "$program")/joeylog.txt
timeoutSeconds=${TIMEOUT:-300}

rm -f "$log"
SDL_VIDEO_DRIVER=dummy SDL_AUDIO_DRIVER=dummy timeout -s KILL "$timeoutSeconds" "$program" > /dev/null 2>&1 &
uberPid=$!
trap 'joeyStop "$uberPid"' EXIT

while joeyAlive "$uberPid"; do
    if grep -q "press any key to exit" "$log" 2>/dev/null; then
        echo "bench-sdl3: UBER finished; log in ${log#"$repo"/}"
        exit 0
    fi
    sleep 1
done
echo "bench-sdl3: FAIL - UBER ended (or timed out after ${timeoutSeconds} s) without finishing" >&2
exit 1