using System;
using UniRx;

namespace TimeManager
{

    /// <summary>
    /// 统一 Tick 服务实现 - 管理秒级和分钟级的定时器。
    /// 构造时即启动 Interval；须在业务启动链中显式 <c>Resolve&lt;TimeRefreshManager&gt;()</c>（如 ActivityManager.Init 开头），以挂上跨天/跨小时逻辑。
    /// Stop 后需再调 Start() 恢复。
    /// </summary>
    public class TimeTickService : ITimeTickService, IDisposable
    {
        private IObservable<long> _secondTick;
        private IObservable<long> _minuteTick;
        private bool _isStarted;

        public TimeTickService()

        {

            EnsureStarted();
        }

        public IObservable<long> SecondTick => _secondTick;

        public IObservable<long> MinuteTick => _minuteTick;

        public void Start() => EnsureStarted();

        private void EnsureStarted()
        {
            if (_isStarted) return;
            _secondTick = Observable.Interval(TimeSpan.FromSeconds(1f));
            _minuteTick = Observable.Interval(TimeSpan.FromMinutes(1f));
            _isStarted = true;
        }

        public void Stop()
        {
            _secondTick = null;
            _minuteTick = null;
            _isStarted = false;
        }

        public void Dispose()
        {
            Stop();
        }
    }
}