using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.Logging;
using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace DG.Kafka.Worker
{
    public abstract class BatchKafkaWorkerBase<T>
    {
        private readonly ILogger<BatchKafkaWorkerBase<T>> _logger;
        private TaskConfig _taskConfig;
        private int _milliSecondsDelay;

        public BatchKafkaWorkerBase(ILogger<BatchKafkaWorkerBase<T>> logger)
        {
            _logger = logger;
            _taskConfig = KafkaClient.Default.ConfigurationManager.GetSection("TaskConfig").Get<TaskConfig>();
            if (_taskConfig == null)
            {
                throw new ArgumentNullException(nameof(_taskConfig));
            }
            _milliSecondsDelay = _taskConfig.MilliSecondsDelay;
        }

        public async Task Start(List<T> t)
        {
            Stopwatch watch = new Stopwatch();
            watch.Reset();
            watch.Start();
            try
            {
                if (_milliSecondsDelay <= 0)
                {
                    _logger.LogWarning($"[{DateTimeOffset.Now}] [{_taskConfig.TaskName}] 任务定时时间不能少于0！");
                    return;
                }
                if (!_taskConfig.Enable)
                {
                    await Task.Delay(_milliSecondsDelay);
                    _logger.LogWarning($"[{DateTimeOffset.Now}] [{_taskConfig.TaskName}] 任务停止启动！");
                    return;
                }

                await DoWorkAsync(t);
            }
            catch (Exception ex)
            {
                _logger.LogError(ex, $"[{DateTimeOffset.Now}] [{_taskConfig.TaskName}]");
            }
            watch.Stop();
            double costtime = watch.ElapsedMilliseconds;
            _logger.LogDebug($"[{DateTimeOffset.Now}] [{_taskConfig.TaskName}] 任务执行结束，用时：{costtime}ms");
        }

        protected virtual async Task DoWorkAsync(List<T> t)
        {
        }

        public virtual async Task ShopAsync()
        {
        }
    }
}