monop-board/test/local_sim.py

#!/usr/bin/env python3
"""Run monop locally with scripted players via pexpect, feed output to parser."""

import os
import re
import sys
import time
import json
import pexpect
from datetime import datetime, timezone

sys.path.insert(0, os.path.join(os.path.dirname(__file__), '..', 'bot'))
from parser import MonopParser

STATE_FILE = os.path.join(os.path.dirname(__file__), '..', 'site', 'game-state.json')
MONOP = "/usr/games/monop"
PLAYERS = ["Alice", "Bob", "Charlie"]
MAX_TURNS = 80


def write_state(parser):
    state = parser.get_state()
    state["lastUpdated"] = datetime.now(timezone.utc).isoformat()
    tmp = STATE_FILE + ".tmp"
    with open(tmp, "w") as f:
        json.dump(state, f, indent=2)
    os.replace(tmp, STATE_FILE)


def process_output(parser, text):
    """Feed text lines to parser."""
    for line in text.split("\r\n"):
        line = line.strip()
        if line:
            print(f"  monop: {line}", flush=True)
            parser.parse_line(line)


def main():
    parser = MonopParser()
    for i, name in enumerate(PLAYERS):
        parser.add_player(name, i + 1)

    child = pexpect.spawn(MONOP, encoding='utf-8', timeout=5)
    child.logfile_read = None  # we'll handle output ourselves

    turn_count = 0

    def expect_and_respond(patterns_responses, default=""):
        """Wait for patterns and respond."""
        nonlocal turn_count
        patterns = [p for p, _ in patterns_responses]
        try:
            idx = child.expect(patterns, timeout=3)
            output = child.before + child.after
            process_output(parser, output)
            write_state(parser)
            resp = patterns_responses[idx][1]
            if callable(resp):
                resp = resp()
            print(f"  -> {resp!r}", flush=True)
            child.sendline(resp)
            return True
        except pexpect.TIMEOUT:
            output = child.before or ""
            if output:
                process_output(parser, output)
                write_state(parser)
            return False
        except pexpect.EOF:
            output = child.before or ""
            if output:
                process_output(parser, output)
                write_state(parser)
            return None

    # Phase 1: Setup
    print("=== Game Setup ===", flush=True)
    expect_and_respond([("How many players\\?", str(len(PLAYERS)))])
    for i, name in enumerate(PLAYERS):
        expect_and_respond([(f"Player {i+1}'s name:", name)])

    # Phase 2: Playing
    print("\n=== Game Play ===", flush=True)
    consecutive_timeouts = 0

    while turn_count < MAX_TURNS:
        result = expect_and_respond([
            ("Do you want to buy\\?", "yes"),
            ("do you wish to ", "yes"),
            ("Bid for ", "0"),
            ("How much do you", "0"),
            ("mortgage\\?", "yes"),
            ("Which file", "/dev/null"),
            ("do you wish to sell", "no"),
            ("Will you buy", "no"),
            ("rolled doubles", ""),
            ("'s turn", ""),
            # The main prompt - just hit enter to roll
            ("\\? ", ""),
            ("\n", ""),
        ])

        if result is None:
            print("Game ended (EOF)", flush=True)
            break
        elif result is False:
            consecutive_timeouts += 1
            if consecutive_timeouts > 5:
                # Try sending empty line to nudge
                child.sendline("")
                consecutive_timeouts = 0
        else:
            consecutive_timeouts = 0
            turn_count += 1

        # Read any remaining output
        try:
            extra = child.read_nonblocking(4096, timeout=0.3)
            if extra:
                process_output(parser, extra)
                write_state(parser)
        except (pexpect.TIMEOUT, pexpect.EOF):
            pass

    print(f"\n=== Done: {turn_count} turns ===", flush=True)
    write_state(parser)
    child.close()

    state = parser.get_state()
    for p in state["players"]:
        props = [state["squares"][pid]["name"] for pid in p["properties"]]
        print(f"  {p['name']}: ${p['money']}, loc={p['location']}, props={props}")
    print(f"  Log entries: {len(state['log'])}")


if __name__ == "__main__":
    main()