#!/usr/bin/env bash
set -e

DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
cd "$DIR"

PID_FILE="$DIR/server.pid"
LOG_FILE="$DIR/server.log"

if [ -f "$PID_FILE" ]; then
    PID=$(cat "$PID_FILE")
    if kill -0 "$PID" 2>/dev/null; then
        echo "Server is already running with PID $PID."
        exit 0
    else
        rm -f "$PID_FILE"
    fi
fi

# Start server in detached session, redirecting output to log file
setsid python3 -u server.py > "$LOG_FILE" 2>&1 < /dev/null &
PID=$!
echo $PID > "$PID_FILE"


# Quick check if it started successfully
sleep 0.5
if kill -0 "$PID" 2>/dev/null; then
    echo "Server started successfully (PID $PID)."
    echo "Logs: $LOG_FILE"
else
    echo "Failed to start server. Check logs: $LOG_FILE"
    rm -f "$PID_FILE"
    exit 1
fi