#!/usr/bin/env bash
# Fixture coverage for runtime-declared Bevy screenshot dialect verification.
set -euo pipefail
root=$(cd "$(dirname "$0")/.." && pwd)
tmp=$(mktemp -d)
trap 'rm -rf "$tmp"' EXIT

mkdir -p "$tmp/tools" "$tmp/target/debug"
cp "$root/tools/bevy-headless.sh" "$tmp/tools/bevy-headless.sh"
cat > "$tmp/target/debug/misaligned-bevy" <<'EOF'
#!/usr/bin/env bash
set -euo pipefail
python3 - "$MISALIGNED_SHOT_PATH" <<'PY'
import pathlib, sys
path = pathlib.Path(sys.argv[1])
path.parent.mkdir(parents=True, exist_ok=True)
path.write_bytes(b"\x89PNG\r\n\x1a\nfixture")
PY
case "$MISALIGNED_SHOT" in
  digital-fixture)
    echo "bevy shot ready: kind=digital-fixture dialect=DIGITAL"
    ;;
  real-fixture)
    echo "fog audit OK: fixture"
    echo "bevy shot ready: kind=real-fixture dialect=REAL"
    ;;
  real-without-fog)
    echo "bevy shot ready: kind=real-without-fog dialect=REAL"
    ;;
  missing-dialect)
    echo "screenshot saved without a dialect declaration"
    ;;
esac
EOF
chmod +x "$tmp/target/debug/misaligned-bevy"

run() {
  (cd "$tmp" && bash tools/bevy-headless.sh "$@" --no-build --timeout 5)
}

digital_log="$tmp/digital.log"
run digital-fixture --output "$tmp/digital.png" > "$digital_log"
grep -q 'bevy evidence: OK shot=digital-fixture dialect=digital' "$digital_log" || {
  echo "FAIL: DIGITAL evidence was not accepted without a material fog audit" >&2
  exit 1
}

real_log="$tmp/real.log"
run real-fixture --output "$tmp/real.png" > "$real_log"
grep -q 'bevy evidence: OK shot=real-fixture dialect=real' "$real_log" || {
  echo "FAIL: REAL evidence with a fog audit was not accepted" >&2
  exit 1
}

if run real-without-fog --output "$tmp/no-fog.png" > "$tmp/no-fog.log" 2>&1; then
  echo "FAIL: REAL evidence passed without its material fog audit" >&2
  exit 1
fi
grep -q 'did not report fog audit OK' "$tmp/no-fog.log" || {
  echo "FAIL: missing REAL fog audit failed without the exact reason" >&2
  exit 1
}

if run missing-dialect --output "$tmp/no-dialect.png" > "$tmp/no-dialect.log" 2>&1; then
  echo "FAIL: evidence passed without a runtime dialect declaration" >&2
  exit 1
fi
grep -q 'did not report one valid staged dialect' "$tmp/no-dialect.log" || {
  echo "FAIL: missing dialect failed without the exact reason" >&2
  exit 1
}

echo "bevy-headless fixtures: OK"