#!/usr/bin/env bash
# Full networked game flow, two real client processes:
#   register -> POST /api/worlds/{id}/join -> Session -> game.tscn -> networked.
# Client A must see client B rendered as a remote player and its own movement
# must round-trip. Requires a backend with GAME_SERVERS_ENABLED and the Godot
# binary reachable from it.
#
# Usage: scripts/run_game_multiplayer_test.sh <backend_base_url> <world_id>
set -uo pipefail
cd "$(dirname "$0")/.."

BASE_URL="${1:?usage: run_game_multiplayer_test.sh <backend_url> <world_id>}"
WORLD_ID="${2:?usage: run_game_multiplayer_test.sh <backend_url> <world_id>}"
GODOT_BIN="${GODOT_BIN:-godot}"
command -v "$GODOT_BIN" >/dev/null 2>&1 || GODOT_BIN="$HOME/godot/godot"

export AGP_API_BASE_URL="$BASE_URL"

cleanup() { kill "${B_PID:-}" 2>/dev/null; wait 2>/dev/null; }
trap cleanup EXIT

echo "=== client B: join world $WORLD_ID and hold ==="
"$GODOT_BIN" --headless --path . --script res://scripts/mp_game_flow_client.gd -- \
	--role b --world "$WORLD_ID" >/tmp/mpflow_b.log 2>&1 &
B_PID=$!
for _ in $(seq 1 40); do grep -q 'RESULT b in_world' /tmp/mpflow_b.log && break; sleep 1; done
grep -q 'RESULT b in_world' /tmp/mpflow_b.log || { echo "B never entered the world:"; tail -5 /tmp/mpflow_b.log; echo "=== SMOKE RESULT: FAIL ==="; exit 1; }

echo "=== client A: join world $WORLD_ID, move, look for B ==="
"$GODOT_BIN" --headless --path . --script res://scripts/mp_game_flow_client.gd -- \
	--role a --world "$WORLD_ID" 2>&1 | tee /tmp/mpflow_a.log
A_LINE=$(grep '^RESULT a' /tmp/mpflow_a.log || true)

echo
echo "A: ${A_LINE:-<none>}"
echo "B: $(grep '^RESULT b' /tmp/mpflow_b.log || echo '<none>')"

if echo "$A_LINE" | grep -q 'moved=true' && echo "$A_LINE" | grep -qE 'remotes=[1-9]'; then
	echo "=== SMOKE RESULT: PASS ==="
	exit 0
fi
echo "=== SMOKE RESULT: FAIL ==="
exit 1