#!/bin/bash
# Run monop-irc game server on IRC via ii + socat TLS proxy
set -e

SERVER=irc.darkscience.net
PORT=6697
CHANNEL="#monop-dev"
NICK="monopoly"
PREFIX=/tmp/monop-irc-session
MONOP=/usr/games/monop
SOCAT_PORT=16667

cleanup() {
    echo "Cleaning up..."
    kill %1 %2 %3 2>/dev/null
    killall -q ii 2>/dev/null
    rm -rf "$PREFIX"
    kill $(cat /tmp/socat-irc.pid 2>/dev/null) 2>/dev/null
    exit 0
}
trap cleanup INT TERM EXIT

# Clean previous
killall -q ii 2>/dev/null || true
kill $(cat /tmp/socat-irc.pid 2>/dev/null) 2>/dev/null || true
rm -rf "$PREFIX"
mkdir -p "$PREFIX"

# Start TLS proxy with socat
echo "Starting TLS proxy on localhost:$SOCAT_PORT -> $SERVER:$PORT"
socat TCP-LISTEN:$SOCAT_PORT,fork,reuseaddr OPENSSL:$SERVER:$PORT,verify=0 &
echo $! > /tmp/socat-irc.pid
sleep 1

# Start ii connecting to local socat proxy
echo "Starting ii..."
ii -s 127.0.0.1 -p $SOCAT_PORT -n "$NICK" -i "$PREFIX" &
sleep 3

# Wait for connection
IN="$PREFIX/127.0.0.1/in"
echo "Waiting for ii connection..."
for i in $(seq 1 30); do
    [ -p "$IN" ] && break
    sleep 1
done
if [ ! -p "$IN" ]; then
    echo "ERROR: ii failed to connect"
    exit 1
fi
echo "Connected!"

# Join channel
echo "/j $CHANNEL" > "$IN"
sleep 2

# Wait for channel
CHAN_DIR="$PREFIX/127.0.0.1/${CHANNEL}"
INCHAN="$CHAN_DIR/in"
OUTCHAN="$CHAN_DIR/out"

echo "Waiting for channel..."
for i in $(seq 1 20); do
    [ -p "$INCHAN" ] && break
    sleep 1
done
if [ ! -p "$INCHAN" ]; then
    echo "ERROR: failed to join channel"
    ls -la "$PREFIX/127.0.0.1/" 2>/dev/null
    exit 1
fi
echo "Joined $CHANNEL"

# Send welcome message
echo "🎲 Monopoly IRC Game Server ready! Prefix commands with a dot (.) — e.g. type '.roll' to roll dice." > "$INCHAN"
echo "Type '.3' to start a 3-player game, or '.N' for N players." > "$INCHAN"

# Wait for out file
for i in $(seq 1 10); do
    [ -f "$OUTCHAN" ] && break
    sleep 1
done

echo "Game server running. Watching for commands..."

# The pipeline:
# 1. tail -f channel output (IRC messages)
# 2. sed extracts lines where users prefix with "." (e.g. ".roll" -> "username roll")
# 3. Filter out our own messages
# 4. Pipe to monop stdin; monop stdout goes back to channel
tail -f "$OUTCHAN" | \
    sed -u -En 's/^[0-9-]+ [0-9:]+ <([a-zA-Z0-9_]+)> \.(.*)$/\2/p' | \
    grep --line-buffered -v "^$" | \
    $MONOP 2>&1 | \
    while IFS= read -r line; do
        echo "$line" > "$INCHAN"
        # Small delay to avoid flood
        sleep 0.1
    done