using System.Collections.Generic;
using System.IO;
using System.Linq;
using Newtonsoft.Json;
using CncSimulator.Config;
using CncSimulator.Core;
using CncSimulator.Device;

namespace CncSimulator.Core
{
    /// <summary>引擎：管理多个 SimulatorServer 实例</summary>
    public class SimulatorEngine
    {
        private readonly List<SimulatorServer> _servers = new List<SimulatorServer>();

        public void LoadConfig(string jsonPath)
        {
            var json = File.ReadAllText(jsonPath);
            var cfg = JsonConvert.DeserializeObject<SimulatorConfig>(json);
            LoadConfig(cfg);
        }

        public void LoadConfig(SimulatorConfig cfg)
        {
            _servers.Clear();
            foreach (var addr in cfg.Addresses)
            {
                var devices = new List<DeviceSimulator>();
                foreach (var d in addr.Devices)
                {
                    devices.Add(new DeviceSimulator(d, addr.DataChangeInterval));
                }
                var server = new SimulatorServer(addr, devices);
                _servers.Add(server);
            }
        }

        public void StartAll()
        {
            foreach (var s in _servers) s.Start();
        }

        public void StopAll()
        {
            foreach (var s in _servers) s.Stop();
        }

        public object GetStatus()
        {
            return _servers.Select(s => new
            {
                address = s.Address.Name,
                port = s.Address.Port,
                running = s.IsRunning,
                totalDevices = s.TotalDeviceCount,
                onlineDevices = s.OnlineDeviceCount
            }).ToList();
        }

        public SimulatorServer FindByPort(int port)
        {
            return _servers.FirstOrDefault(s => s.Address.Port == port);
        }
    }
}