#!/usr/bin/env bash
# End-to-end integration test: boot a dedicated server, connect two scripted
# bot clients over a real ENet socket, and assert that the whole loop happened --
# handshake, lobby, portal into a dungeon, and the emergency escape back.
#
# This is the test that catches everything unit tests structurally cannot: RPC
# wiring, codec round-trips over the wire, instance transfers, and the client's
# reconciliation loop. Run it before calling any networking change done.
#
#   tools/smoke.sh            # ~35s
#   KEEP=1 tools/smoke.sh     # keep the logs and print where they are
set -uo pipefail
cd "$(dirname "$0")/.."
GODOT="${GODOT:-godot}"
PORT="${PORT:-27099}"
SERVER_TICKS="${SERVER_TICKS:-2000}"
CLIENT_TICKS="${CLIENT_TICKS:-1700}"
OUT="$(mktemp -d -t transcience-smoke-XXXXXX)"

cleanup() {
  kill %1 %2 %3 2>/dev/null
  wait 2>/dev/null
  if [[ "${KEEP:-0}" == "1" ]]; then
    echo "logs kept in $OUT"
  else
    rm -rf "$OUT"
  fi
}
trap cleanup EXIT

echo "smoke: server on port $PORT, logs in $OUT"
"$GODOT" --headless --path . -- --server --port "$PORT" --autoquit "$SERVER_TICKS" \
  > "$OUT/server.log" 2>&1 &

for _ in $(seq 1 60); do
  grep -q "SERVER_READY" "$OUT/server.log" 2>/dev/null && break
  sleep 0.25
done
if ! grep -q "SERVER_READY" "$OUT/server.log" 2>/dev/null; then
  echo "FAIL: server never became ready"; cat "$OUT/server.log"; exit 1
fi

for n in 1 2; do
  "$GODOT" --headless --path . -- --bot --host 127.0.0.1 --port "$PORT" \
    --name "bot$n" --autoquit "$CLIENT_TICKS" > "$OUT/bot$n.log" 2>&1 &
  sleep 0.4
done

wait %2 %3 2>/dev/null
wait %1 2>/dev/null

fails=0
check() { # check <label> <file> <pattern>
  if grep -qE "$3" "$2"; then
    echo "  ok   $1"
  else
    echo "  FAIL $1  (no match for /$3/ in $(basename "$2"))"
    fails=$((fails + 1))
  fi
}
refute() { # refute <label> <file> <pattern>
  local hits
  hits=$(grep -cE "$3" "$2" || true)
  if [[ "$hits" == "0" ]]; then
    echo "  ok   $1"
  else
    echo "  FAIL $1  ($hits line(s) matched /$3/ in $(basename "$2"))"
    grep -E "$3" "$2" | head -5 | sed 's/^/       /'
    fails=$((fails + 1))
  fi
}

echo "assertions:"
check  "server accepted bot1"        "$OUT/server.log" "joined as 'bot1'"
check  "server accepted bot2"        "$OUT/server.log" "joined as 'bot2'"
check  "a dungeon instance opened"   "$OUT/server.log" "opened dungeon instance"
check  "emergency escape completed"  "$OUT/server.log" "escaped to lobby"
check  "bot1 reached a dungeon"      "$OUT/bot1.log"   "entered instance .*DUNGEON"
check  "bot1 returned to the lobby"  "$OUT/bot1.log"   "entered instance .*LOBBY"
refute "no server script errors"     "$OUT/server.log" "SCRIPT ERROR|Parse Error|USER ERROR"
refute "no client script errors"     "$OUT/bot1.log"   "SCRIPT ERROR|Parse Error|USER ERROR"

echo
if [[ $fails -eq 0 ]]; then
  echo "SMOKE PASS"
else
  echo "SMOKE FAIL ($fails)"
  echo "--- server.log (tail) ---"; tail -40 "$OUT/server.log"
  echo "--- bot1.log (tail) ---";   tail -40 "$OUT/bot1.log"
fi
exit $fails