#!/usr/bin/env bash
# SAFE Xenia-Canary launcher for THIS box (shared AMD GPU + GPU-accelerated VS Code).
#
# Canary's vkd3d-proton renders D3D12->Vulkan; if it picks the AMD GPU it CRASHES
# VS Code. This wrapper forces software Vulkan (llvmpipe/lavapipe) IN THE SAME
# process as wine (env vars do NOT survive across separate shells!), and REFUSES
# to launch if any hardware Vulkan device is still visible (hard pre-flight gate).
#
# Usage:  tools/run-canary-safe.sh [audit61_pcs_csv] [seconds]
#   e.g.  tools/run-canary-safe.sh 0x82507458,0x8250747c 95
# Output: /tmp/canary_video.stdout (+ xenia.log in the binary dir). Prints rc + ADV.wmv hit count.
set -u

# --- force software Vulkan, belt-and-suspenders across loader/driver variants ---
export VK_ICD_FILENAMES=/usr/share/vulkan/icd.d/lvp_icd.json
export VK_DRIVER_FILES=/usr/share/vulkan/icd.d/lvp_icd.json
export MESA_VK_DEVICE_SELECT=llvmpipe
export DXVK_FILTER_DEVICE_NAME=llvmpipe
export VKD3D_FILTER_DEVICE_NAME=llvmpipe
export LIBGL_ALWAYS_SOFTWARE=1

# Paths come from where this script sits — tools/ inside the repo, whose parent
# directory is the workspace holding the fork checkouts and the game data. Both
# are overridable, so a machine that lays things out differently sets the env
# var instead of editing the script. (This file used to hardcode one machine's
# absolute paths, which is why it could not be checked in.)
HERE="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
WORKSPACE="$(cd "$HERE/../.." && pwd)"
BIN="${CANARY_WINE_BIN_DIR:-$WORKSPACE/xenia-canary/build-cross/bin/Windows/Debug}"
ISO="${SYLPHEED_ISO:-$WORKSPACE/Project Sylpheed - Arc of Deception (USA, Europe) (En,Ja).iso}"
[ -f "$ISO" ] || { echo "ABORT: no ISO at '$ISO' — set \$SYLPHEED_ISO"; exit 4; }
PROBES="${1:-}"
SECS="${2:-95}"

# --- HARD PRE-FLIGHT GATE: only proceed if Vulkan exposes software devices ONLY ---
devs="$(vulkaninfo --summary 2>/dev/null | grep -i deviceName || true)"
if echo "$devs" | grep -qiE 'radv|amd|radeon|nvidia|geforce|intel\b'; then
  echo "ABORT(pre-flight): a HARDWARE Vulkan device is still visible -> refusing (would crash VS Code):"
  echo "$devs"
  exit 3
fi
if ! echo "$devs" | grep -qiE 'llvmpipe'; then
  echo "ABORT(pre-flight): llvmpipe not visible; lavapipe ICD missing? devs=[$devs]"
  exit 3
fi
echo "pre-flight OK: software-only Vulkan -> $devs"

# --- clean slate ---
pkill -x xenia_canary_i2d.exe 2>/dev/null; wineserver -k 2>/dev/null; pkill -x Xvfb 2>/dev/null; sleep 1

Xvfb :99 -screen 0 1280x720x24 -nolisten tcp >/tmp/xvfb.log 2>&1 &
XVFB=$!
sleep 2
export DISPLAY=:99
cd "$BIN" || { echo "ABORT: bin dir missing"; kill "$XVFB" 2>/dev/null; exit 4; }
rm -f xenia.log

# Binary is overridable (default keeps the historical _i2d snapshot); extra
# cvars pass through via CANARY_EXTRA_ARGS (space-separated, values w/o spaces).
# ⚠️ THIS WINE BUILD HAS NO INSTRUMENTATION AND CANNOT BE REFRESHED HERE.
# Measured 2026-09-20: `xenia_canary_i2d.exe` does not exist at all, and the
# `xenia_canary.exe` that does (2026-06-19) has ZERO hits for both
# `audit_61_branch_probe_pcs` and `RE-INPUT`/`RE-DRAW`. Rebuilding it needs the
# clang-cl + xwin cross toolchain on the `cross-build-wine` branch.
#
# 🔴 FOR PROBE RUNS USE `run-canary-native-safe.sh` INSTEAD -- same hard Vulkan
# gate, same headless behaviour, and it runs the Checked native binary, which
# carries audit_61 and the RE-INPUT/RE-DRAW logging.
BIN_EXE="${CANARY_BIN:-xenia_canary_i2d.exe}"
if [ ! -f "$BIN/$BIN_EXE" ]; then
  echo "ABORT: no Wine binary at $BIN/$BIN_EXE" >&2
  echo "  This build is stale and uninstrumented; use run-canary-native-safe.sh" >&2
  echo "  for anything needing audit_61 or the RE-* logging." >&2
  exit 4
fi
args=(--log_level=3 --mute=true)
[ -n "$PROBES" ] && args+=("--audit_61_branch_probe_pcs=$PROBES")
if [ -n "${CANARY_EXTRA_ARGS:-}" ]; then
  read -ra EXTRA <<< "$CANARY_EXTRA_ARGS"
  args+=("${EXTRA[@]}")
fi
echo "launch (sw-vulkan, muted, ${SECS}s): wine $BIN_EXE ${args[*]}"
timeout "$SECS" wine "./$BIN_EXE" "$ISO" "${args[@]}" >/tmp/canary_video.stdout 2>&1
rc=$?

pkill -x xenia_canary_i2d.exe 2>/dev/null; wineserver -k 2>/dev/null; kill "$XVFB" 2>/dev/null; pkill -x Xvfb 2>/dev/null
echo "rc=$rc  ADV.wmv=$(grep -ac 'ADV.wmv' xenia.log 2>/dev/null)  logsize=$(wc -c < xenia.log 2>/dev/null)"