using Quartz;
using Microsoft.AspNetCore.Identity;
using LMS.Repository.Models.DB;
using Microsoft.Extensions.Logging;
using LMS.Repository.DB;
using LMS.DAO;
using LMS.Common.Enums;
using Microsoft.EntityFrameworkCore;
using LMS.Repository.Options;

namespace LMS.Tools.TaskScheduler;

[DisallowConcurrentExecution]
public class ResetUserFreeCount(ILogger<ResetUserFreeCount> logger, UserManager<User> userManager, ApplicationDbContext context) : IJob
{
    private readonly ILogger<ResetUserFreeCount> _logger = logger;
    private readonly UserManager<User> _userManager = userManager;
    private readonly ApplicationDbContext _context = context;

    public async Task Execute(IJobExecutionContext context)
    {
        _logger.LogInformation($"开始执行月度任务 - 当前时间: {DateTime.Now}");
        await ProcessResetUserFreeCount();
        _logger.LogInformation($"月度任务执行完成 - 当前时间: {DateTime.Now}");
    }

    private async Task ProcessResetUserFreeCount()
    {
        using var transaction = await _context.Database.BeginTransactionAsync();
        try
        {
            // 这里是您的业务逻辑
            _logger.LogInformation("正在重置用户余换绑次数数据...");

            // 加载Options
            Options? options = await _context.Options.FirstOrDefaultAsync(x => x.Key == OptionKeyName.ResetFreeCountSetting) ?? throw new Exception("未找到重置用户免费次数的设置，请检查！");

            ResetUserFreeCountSettingModel resetFreeCountSetting = options.GetValueObject<ResetUserFreeCountSettingModel>() ?? new ResetUserFreeCountSettingModel();
            if (resetFreeCountSetting.EnableMonthlyReset == false)
            {
                // 不允许重置
                _logger.LogInformation("未开启用户重置换绑次数，有需要请开启！");
                return;
            }

            // 获取所有用户
            List<User> users = await _userManager.Users.ToListAsync();

            // 修改所有的用户的免费次数
            foreach (User user in users)
            {
                long machineCount = user.AllDeviceCount;
                user.FreeCount = resetFreeCountSetting.OnceFreeCount * machineCount;
                await _userManager.UpdateAsync(user);
            }
            await transaction.CommitAsync();
            await _context.SaveChangesAsync();
            _logger.LogInformation("重置用户余换绑次数数据成功！");
        }
        catch (Exception ex)
        {
            await transaction.RollbackAsync();
            _logger.LogError(ex, "月度任务执行失败");
            throw; // 重新抛出异常以便 Quartz 记录作业失败
        }
    }
}