#!/usr/bin/env bash
# Headless Pitchwell smoke — no Godot GUI. docs/GAMEPLAY.md: 20 Hz sim, seep +0.4/s.
set -euo pipefail

ROOT="$(cd "$(dirname "$0")/../.." && pwd)"
N_TICKS="${1:-40}"
HZ=20
# GAMEPLAY.md Economy: Sump Wells slow seep (+0.4/s while claimed)
SEEP_PER_S=0.4
# GAMEPLAY.md Match open: HQ + 4 workers, 500 Pitch start
START_PITCH=500
DT="$(python3 -c "print(1.0/${HZ})")"

STUB="${ROOT}/assets/cinematics/first-contact/out/first-contact-stub.mp4"

fail() {
  echo "SMOKE FAIL $*" >&2
  exit 1
}

# Optional cinematic probe (GAMEPLAY.md: briefings ≥1280×720)
if [[ -f "${STUB}" ]]; then
  if command -v ffprobe >/dev/null 2>&1; then
    wh="$(ffprobe -v error -select_streams v:0 -show_entries stream=width,height -of csv=p=0 "${STUB}" || true)"
    w="${wh%%,*}"; h="${wh##*,}"
    if [[ "${w}" != "1280" || "${h}" != "720" ]]; then
      fail "stub ${STUB} size ${w}x${h} want 1280x720"
    fi
  else
    echo "SMOKE WARN ffprobe missing; skip stub size check" >&2
  fi
fi

# Pure-Python 20 Hz tick loop: match open — HQ exists, claimed well seeps Pitch
OUT="$(
  N_TICKS="${N_TICKS}" HZ="${HZ}" SEEP_PER_S="${SEEP_PER_S}" START_PITCH="${START_PITCH}" DT="${DT}" python3 - <<'PY'
import os, sys

n = int(os.environ["N_TICKS"])
hz = int(os.environ["HZ"])
seep = float(os.environ["SEEP_PER_S"])
pitch = float(os.environ["START_PITCH"])
dt = float(os.environ["DT"])

hq_alive = True
well_claimed = True  # conceptual: refinery radius holds seep (GAMEPLAY.md)

if n < 1:
    print("bad N_TICKS", n, file=sys.stderr)
    sys.exit(2)

for t in range(n):
    if not hq_alive:
        print("HQ dead mid-sim", file=sys.stderr)
        sys.exit(1)
    if well_claimed:
        pitch += seep * dt  # +0.4 Pitch/s → +0.02/tick at 20 Hz

# Expect: start 500 + N*(0.4/20)
expect = float(os.environ["START_PITCH"]) + n * (seep / hz)
# float tolerance
if abs(pitch - expect) > 1e-6:
    print(f"pitch {pitch} != expect {expect}", file=sys.stderr)
    sys.exit(1)
if not hq_alive:
    print("HQ missing", file=sys.stderr)
    sys.exit(1)

print(f"ticks={n} hz={hz} pitch={pitch:.4f} hq=1 seep={seep}/s")
PY
)" || fail "sim ${OUT}"

echo "SMOKE PASS headless ${OUT}"
exit 0