#!/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
#
# verify-sdl3-save.sh - Save gate for the SDL3 port: a save outlives the
# program, beside it.
#
# SAVE (examples/save) counts its launches in SAVES/runs.dat. It is run twice
# headless (SDL's dummy drivers) from a scratch folder, started from another
# directory each time so the port's own move into the program's folder is
# what puts SAVES/ there; after the second run the count must be 2.
#
# Usage:   scripts/verify-sdl3-save.sh
# Requires: build/sdl3/bin/SAVE (make sdl3).
set -euo pipefail

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

program=$(joeyExampleProgram save sdl3)
[ -x "$program" ] || { echo "verify-sdl3-save: build SAVE first (make sdl3)" >&2; exit 2; }
runSeconds=3

work=$(mktemp -d -t joeylib-sdl3-save.XXXXXX)
trap 'rm -rf "$work"' EXIT
mkdir -p "$work/program" "$work/elsewhere"
cp "$program" "$work/program/SAVE"

for run in 1 2; do
    # SAVE waits for ESC; the timeout's SIGTERM, which SDL turns into a quit,
    # ends each run once it has saved.
    (cd "$work/elsewhere" && SDL_VIDEO_DRIVER=dummy SDL_AUDIO_DRIVER=dummy timeout "$runSeconds" "$work/program/SAVE" > /dev/null 2>&1) || true
done
[ -f "$work/program/SAVES/runs.dat" ] || { echo "verify-sdl3-save: FAIL - no SAVES/runs.dat beside the program" >&2; exit 1; }
count=$(joeyLe16 "$work/program/SAVES/runs.dat")
if [ "$count" = 2 ]; then
    echo "verify-sdl3-save: PASS (the second run counted 2, in SAVES/ beside the program)"
else
    echo "verify-sdl3-save: FAIL - the second run counted $count, not 2" >&2
    exit 1
fi