#!/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-win16-input.sh - Typed-character acceptance gate for the Win16
# port. Runs KEYS.EXE on Windows 3.11 under DOSBox
# (scripts/lib/win16Gate.sh) at one window pixel per stage pixel
# (JOEYLIB_SCALE=1, JOEYLIB_ASPECT=square), types the RetroNet
# definition-of-done string with xdotool (X key events DOSBox turns into
# the PC keyboard's, which Windows turns into WM_KEYDOWN/WM_CHAR), takes
# DOSBox's own screenshot of the 800x600 screen, and decodes the example's
# verification scanline (row 198) with scripts/lib/keysRow.py, wherever
# Windows put the window.
#
# Usage:   scripts/verify-win16-input.sh
# Requires: Windows on DOSBox (install.sh install emulator:win16), Xvfb,
#           xdotool, python3 + PIL; build/win16/bin/KEYS.EXE (make win16).

set -euo pipefail

repo=$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)
source "$repo/scripts/lib/joeyEnv.sh"
source "$repo/scripts/lib/win16Gate.sh"

label=verify-win16-input
win16Need
target="192.168.1.10:6510"
program=$(joeyExampleProgram keys win16)
[ -f "$program" ] || { echo "$label: build KEYS.EXE first (make win16)" >&2; exit 2; }
# Windows' boot and KEYS reaching its poll loop.
bootSeconds=10

work=$(mktemp -d -t joeylib-win16-input.XXXXXX)
cleanup() {
    win16Stop
    rm -rf "$work"
}
trap cleanup EXIT

mkdir -p "$work/program" "$work/shots"
cp "$program" "$work/program/KEYS.EXE"
win16Stage "$work" "$work/program" KEYS.EXE
WIN16_DOSBOX_ARGS=(--set "capture_dir=$work/shots" --set "default_image_capture_formats=raw")
win16Start "$work" JOEYLIB_SCALE=1 JOEYLIB_ASPECT=square
sleep "$bootSeconds"
win=$(win16Window) || { echo "$label: FAIL - DOSBox window not found" >&2; exit 1; }
DISPLAY="$WIN16_DISPLAY" xdotool windowactivate --sync "$win" 2> /dev/null || true
DISPLAY="$WIN16_DISPLAY" xdotool type --window "$win" --delay 150 -- "$target"
sleep 2
# Ctrl+F5: DOSBox's screenshot hotkey.
DISPLAY="$WIN16_DISPLAY" xdotool key --window "$win" ctrl+F5
sleep 2
png=$(find "$work/shots" -name '*.png' -print -quit)
[ -n "$png" ] || { echo "$label: FAIL - DOSBox took no screenshot" >&2; exit 1; }
if python3 "$repo/scripts/lib/keysRow.py" "$png" "$target" --scale 1; then
    echo "$label: PASS (typed \"$target\", all ${#target} chars arrived via jlInputGetChar)"
else
    echo "$label: FAIL" >&2
    exit 1
fi