using System;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Authorization;
using Microsoft.AspNetCore.Mvc;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Options;
using Volo.Abp.Application.Services;
using Volo.Abp.Caching;
using Volo.Abp.DependencyInjection;
using Volo.Abp.Domain.Repositories;
using Win_in.Sfs.Basedata.Application.Contracts;
using Win_in.Sfs.Basedata.Domain;
using Win_in.Sfs.Basedata.Domain.Caches;
using Win_in.Sfs.Basedata.Domain.Shared;

namespace Win_in.Sfs.Basedata.Application;

public class CycleOptions
{
    /// <summary>
    /// Boms缓存生命周期（秒）
    /// </summary>
    public int BomsCycle { get; set; }

}
/// <summary>
/// 提供缓存服务的类
/// </summary>
public class CacheService:ISingletonDependency
{
    private readonly IServiceProvider _serviceProvider;
    private readonly IOptions<CycleOptions> _options;
    public CacheService(IServiceProvider serviceProvider, IOptions<CycleOptions> options)
    {
        _serviceProvider = serviceProvider;
        _options = options;
    }

    /// <summary>
    /// 生命周期操作
    /// </summary>
    private async Task BomsCycle()
    {
        using var serviceScope = _serviceProvider.CreateScope();
        var repository = serviceScope.ServiceProvider.GetRequiredService<IBomRepository>();
        var reassigner = new Reassigner(DateTime.Now, new TimeSpan(0, 0, _options.Value.BomsCycle==0?600: _options.Value.BomsCycle));
        await reassigner.RunAsync(async () =>
        {
            Cache.Boms.Clear();
            Cache.Boms = await repository.GetListAsync().ConfigureAwait(false);

        }).ConfigureAwait(false);
    }

    /// <summary>
    /// 异步开始生命周期操作
    /// </summary>
    public async Task StartAsync()
    {
        await BomsCycle().ConfigureAwait(false);
    }

    /// <summary>
    /// 异步重置BOM（Bill of Materials）生命周期操作
    /// </summary>
    public async Task ResetAsync()
    {
        await BomsCycle().ConfigureAwait(false);
    }
}


public class Reassigner
{
    private readonly TimeSpan _interval;
    private DateTime _lasttime;
    public Reassigner(DateTime lasttime, TimeSpan interval)
    {
        _lasttime = lasttime;
        _interval = interval;
    }

    public async Task RunAsync(Action p_action)
    {
        while (true)
        {
            // 获取当前时间
            var currentTime = DateTime.Now;
            // 计算上次重新赋值到现在的时间间隔
            var elapsed = currentTime - _lasttime;
            // 检查时间间隔是否满足条件
            if (elapsed >= _interval)
            {
                p_action();
                // 重新赋值
                //_value = await GetValueAsync();
                // 更新最后更新时间
                _lasttime = currentTime;
            }

            // 等待下一刻钟
            await Task.Delay(_interval).ConfigureAwait(false);
        }
    }

}