#!/usr/bin/env bash
# 2V2-e: the ported client (system.py in Godot) logs in, enters the game and draws RenderGame's
# commands; project/python_game_render_test.gd takes the screenshot and writes report.json.
#
#   script/python_game_render_test.sh            offline: port_fake_login_server on loopback
#   script/python_game_render_test.sh --live     live: MT_LIVE_HOST / MT_LIVE_LOGIN / MT_LIVE_PASSWORD
#                                                (+ MT_LIVE_AUTH_PORT / MT_LIVE_GAME_PORT / MT_LIVE_SLOT)
#
# Credentials are only ever read from the caller's environment; nothing here prints them. Do not add
# `set -x`. Needs a windowed Godot (a headless run draws nothing and skips the screenshot checks).
# exit: 0 PASS, 1 FAIL, 2 precondition missing.
set -euo pipefail
set +x

cd "$(dirname "$0")/.."
repo="$PWD"
godot_bin="${GODOT:-godot}"
output="${MT_RENDER_OUTPUT:-$repo/build/rendering/python-game-$(date +%Y%m%d-%H%M%S)-$$}"
mkdir -p "$output"
export MT_RENDER_OUTPUT="$output"

server_pid=""
cleanup() {
  if [ -n "$server_pid" ]; then
    kill -TERM "$server_pid" 2>/dev/null || true
    wait "$server_pid" 2>/dev/null || true
  fi
}
trap cleanup EXIT

if [ "${1:-}" = "--live" ]; then
  if [ -z "${MT_LIVE_HOST:-}" ] || [ -z "${MT_LIVE_LOGIN:-}" ] || [ -z "${MT_LIVE_PASSWORD:-}" ]; then
    echo "python_game_render_test: --live needs MT_LIVE_HOST, MT_LIVE_LOGIN, MT_LIVE_PASSWORD" >&2
    exit 2
  fi
else
  server="$repo/build/extension/src/port/port_fake_login_server"
  if [ ! -x "$server" ]; then
    echo "python_game_render_test: build port_fake_login_server first ($server)" >&2
    exit 2
  fi
  fifo="$output/server.ports"
  "$server" > "$fifo" 2> "$output/server.log" &
  server_pid=$!
  for _ in $(seq 50); do
    [ -s "$fifo" ] && break
    sleep 0.1
  done
  read -r word auth_port game_port < "$fifo" || true
  if [ "${word:-}" != "ports" ]; then
    echo "python_game_render_test: the fake server did not start (see $output/server.log)" >&2
    exit 2
  fi
  export MT_LIVE_HOST=127.0.0.1 MT_LIVE_LOGIN=fakeuser MT_LIVE_PASSWORD=fakepass
  export MT_LIVE_AUTH_PORT="$auth_port" MT_LIVE_GAME_PORT="$game_port" MT_LIVE_SLOT=0
fi

status=0
"$godot_bin" --path "$repo/project" --script res://python_game_render_test.gd > "$output/godot.log" 2>&1 || status=$?
grep -E "^(ok|FAIL):|python_game_render_test:" "$output/godot.log" || true
exit "$status"