#!/bin/bash
# SPDX-License-Identifier: BSD-3-Clause
# Copyright (c) 2026 Open-IOV contributors
# mission-gz.sh - run INSIDE the guest: bring X up (retry), probe the GPU GL
# path (gl_frames), then run GZDoom offscreen with the GLX-pbuffer shim and the
# swap-capture shim. Everything logs to /tmp/mission-*.log; completion is
# signalled by /tmp/mission-done (content = result line).
#
# Env knobs:  GZ_SECS (default 240)  GLF_FRAMES (default 5)  GLF_W/GLF_H
set -u
export DISPLAY=:0

echo "mission start $(date +%T)"
rm -f /tmp/mission-done /tmp/gzframes.bin
mkdir -p /tmp/gzshots

# 1. X up (the DDX ScreenInit is a per-start lottery)
XOK=0
for t in 1 2 3 4; do
    pkill -x Xorg; sleep 1
    systemctl reset-failed xorg0 2>/dev/null
    systemd-run --unit=xorg0 --collect --setenv=HOME=/root \
        /usr/bin/Xorg :0 -config /etc/X11/xorg.conf >/dev/null 2>&1
    sleep 7
    if timeout 12 xdpyinfo >/dev/null 2>&1; then XOK=$t; break; fi
    echo "x try $t: dead"
done
echo "XOK try=$XOK $(date +%T)"
if [ "$XOK" = 0 ]; then echo "X-FAIL" > /tmp/mission-done; exit 1; fi
bash /tmp/guest_mode.sh 2>/dev/null || true

# 2. GPU GL probe: direct pbuffer frames (non-black px0 = path live)
GLF_FRAMES="${GLF_FRAMES:-5}"
(
    timeout 90 /tmp/gl_frames "$GLF_FRAMES" "${GLF_W:-320}" "${GLF_H:-240}" 5 \
        > /tmp/mission-gl.log 2>&1
    echo "glf rc=$? $(date +%T)" >> /tmp/mission-gl.log
) &
GLFPID=$!
sleep 20
echo "x alive after glf start: $(pgrep -c Xorg)"
wait $GLFPID 2>/dev/null
grep -E "^FRAME seq" /tmp/mission-gl.log | tail -3

# 3. GZDoom offscreen + pbuffer shim + swap capture (tested recipe wrapper)
GZ_SECS="${GZ_SECS:-240}"
TIMEOUT="$GZ_SECS" GZLOG=/tmp/mission-gz.log GZCAP=/tmp/gzframes.bin \
    GZPBUF_W="${GZPBUF_W:-640}" GZPBUF_H="${GZPBUF_H:-480}" \
    bash /tmp/gzdoom_pbuf_run.sh
GZRC=$?
echo "gz rc=$GZRC $(date +%T)" >> /tmp/mission-gz.log
ls -la /tmp/gzframes.bin /tmp/gzshots 2>&1 | tail -5
echo "XORG-ALIVE=$(pgrep -c Xorg)" | tee -a /tmp/mission-gz.log
echo "DONE x=$XOK gzrc=$GZRC $(date +%T)" > /tmp/mission-done
echo "mission end $(date +%T)"