#!/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-ste-machine.sh - Which Atari build runs where.
#
# The ST port builds twice. The ST build (make atarist) is pure 68000 and
# must run on every ST, an STe included. The STe build (make ste) uses the
# BLiTTER, DMA sound and the 4-bit palette without asking, so its jlInit
# must refuse every other machine -- with a reason in jlLastError, not a
# crash -- and run on an STe and a Mega STe.
#
# Subject: HELLO, which prints jlPlatformName after jlInit, or "jlInit
# failed: " and jlLastError when it fails. Hatari's --conout 2 copies the
# TOS console to its own output, so the gate reads what the program said:
#
#   STe build on a plain ST   refused, with the STe build's reason
#   STe build on a Mega ST    refused (a BLiTTER, but no DMA sound)
#   STe build on an STe       "Platform: Atari STe"
#   STe build on a Mega STe   "Platform: Atari STe"
#   ST build on an STe        "Platform: Atari ST" (the ST build runs anywhere)
#
# Usage:   scripts/verify-ste-machine.sh
# Requires: ./install.sh install emulator:atarist (Hatari, EmuTOS),
#           HELLO.PRG in build/atarist/bin and build/ste/bin (make atarist,
#           make ste)
set -uo pipefail

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

wall=60             # hard cap on Hatari, whatever happens to this script
runVbls=900         # EmuTOS boot + HELLO's lines: ~500 frames
refused='jlInit failed: this is the STe build'

work=$(mktemp -d -t joeylib-ste-machine.XXXXXX)
trap 'rm -rf "$work"' EXIT

fails=0
# build machine expected-line
while read -r build machine expect; do
    prog=$repo/build/$build/bin/HELLO.PRG
    [ -f "$prog" ] || { echo "verify-ste-machine: missing $prog (run 'make $build')" >&2; exit 2; }
    rm -rf "$work/c"
    mkdir -p "$work/c"
    cp "$prog" "$work/c/"
    SDL_VIDEODRIVER=dummy SDL_AUDIODRIVER=dummy timeout -s KILL "$wall" "$HATARI" \
        --machine      "$machine" \
        --tos          "$EMUTOS_IMG" \
        --harddrive    "$work/c" \
        --gemdos-drive C \
        --drive-a off --drive-b off \
        --sound        off \
        --fast-forward on \
        --run-vbls     "$runVbls" \
        --conout       2 \
        --auto         'C:\HELLO.PRG' > "$work/out.txt" 2>&1
    case $expect in
        refused) want=$refused ;;
        ste)     want='Platform: Atari STe' ;;
        st)      want='Platform: Atari ST$' ;;
    esac
    said=$(grep -a -E 'jlInit failed|Platform:' "$work/out.txt" | tr -d '\r' | head -1)
    if printf '%s\n' "$said" | grep -q -E "^$want"; then
        echo "verify-ste-machine: $build build on $machine: $said"
    else
        echo "verify-ste-machine: FAIL - $build build on $machine said '${said:-nothing}', want '$want'" >&2
        fails=$((fails + 1))
    fi
done <<EOF
ste     st      refused
ste     megast  refused
ste     ste     ste
ste     megaste ste
atarist ste     st
EOF

if [ "$fails" -gt 0 ]; then
    echo "verify-ste-machine: FAIL" >&2
    exit 1
fi
echo "verify-ste-machine: PASS"