using Microsoft.AspNetCore.Mvc;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Hosting;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Channels;
using System.Threading.Tasks;
using TaskManager.Entity;
using TaskManager.EntityFramework;

namespace Wood.Service.Controllers
{
    public class LogController1 : BackgroundService
    {
        private readonly IServiceProvider _serviceProvider;
        private readonly Channel<TaskLog> _logChannel;
        private readonly string _logDirectory;

        public LogController1(
 IServiceProvider serviceProvider,
 IConfiguration configuration)
        {
            _serviceProvider = serviceProvider;
            _logDirectory = configuration["Logging:Directory"] ??
                            Path.Combine(Directory.GetCurrentDirectory(), "Logs");

            EnsureDirectoryExists(_logDirectory);
            _logChannel = Channel.CreateUnbounded<TaskLog>();
        }




        public void EnqueueLog(TaskLog logMessage)
        {
            // 设置日志路径并写入文件
            logMessage.Path= WriteLogToFile(logMessage);

            // 将日志加入处理队列
            _logChannel.Writer.TryWrite(logMessage);
        }

        private string WriteLogToFile(TaskLog logMessage)
        {
            // 获取今天的日期目录
            string todayDirectory = Path.Combine(_logDirectory, DateTime.Now.ToString("yyyy-MM-dd"));

            // 确保目录存在
            EnsureDirectoryExists(todayDirectory);

            // 创建或追加到日志文件
            string logFilePath = Path.Combine(todayDirectory, "application.log");

            try
            {
                // 写入日志内容到文件
                File.AppendAllText(logFilePath,
                    $"[{logMessage.CreationTime:yyyy-MM-dd HH:mm:ss}] [{logMessage.Type}] {logMessage.Info}{Environment.NewLine}");

                // 返回相对路径（从日志根目录开始）
                return Path.GetRelativePath(_logDirectory, logFilePath);
            }
            catch (Exception ex)
            {
                // 记录日志写入失败的错误
                Console.WriteLine($"Error writing log to file: {ex.Message}");
                return null;
            }
        }

        private void EnsureDirectoryExists(string directoryPath)
        {
            if (!Directory.Exists(directoryPath))
            {
                Directory.CreateDirectory(directoryPath);
            }
        }

       

        [HttpGet("AddError")]
        public async Task<bool> AddError(string message, string taskname, Guid taskid, Version version)
        {
            var log = new TaskLog
            {
                Info = message,
                Type = "错误",
                TaskName = taskname,
                CreationTime = DateTime.Now,
                TaskId = taskid,
                Version = version?.ToString()
            };

            EnqueueLog(log);

            return true; // 日志已入队，视为成功
        }

        [HttpGet("AddInfo")]
        public async Task<bool> AddInfo(string message, string taskname, Guid taskid, Version version)
        {
            var log = new TaskLog
            {
                Info = message,
                Type = "错误",
                TaskName = taskname,
                CreationTime = DateTime.Now,
                TaskId = taskid,
                Version = version?.ToString()
            };

            EnqueueLog(log);

            return true;
        }

        [HttpGet("AddInfoRemark")]
        public async Task<bool> AddInfoRemark(string message, string taskname, string remark)
        {
            var log = new TaskLog
            {
                Info = message,
                Type = "记录",
                TaskName = taskname,
                CreationTime = DateTime.Now,
                Remark = remark
            };

            EnqueueLog(log);

            return true;
        }
  

        // 其他方法保持不变...

        protected override async Task ExecuteAsync(CancellationToken stoppingToken)
        {
            await foreach (var logMessage in _logChannel.Reader.ReadAllAsync(stoppingToken))
            {
                // 使用IServiceScopeFactory创建独立的作用域
                using var scope = _serviceProvider.CreateScope();
                var dbContext = scope.ServiceProvider.GetRequiredService<JobDbContext>();

                try
                {
                    dbContext.TaskLogs.Add(logMessage);
                    await dbContext.SaveChangesAsync(stoppingToken);
                }
                catch (Exception ex)
                {
                    Console.WriteLine($"Error saving log: {ex.Message}");
                }
            }
        }


    }
}