#nullable enable
using Bit.Core.Context;
using Bit.Core.Exceptions;
using Bit.Core.NotificationCenter.Authorization;
using Bit.Core.NotificationCenter.Commands.Interfaces;
using Bit.Core.NotificationCenter.Entities;
using Bit.Core.NotificationCenter.Repositories;
using Bit.Core.Platform.Push;
using Bit.Core.Utilities;
using Microsoft.AspNetCore.Authorization;

namespace Bit.Core.NotificationCenter.Commands;

public class MarkNotificationReadCommand : IMarkNotificationReadCommand
{
    private readonly ICurrentContext _currentContext;
    private readonly IAuthorizationService _authorizationService;
    private readonly INotificationRepository _notificationRepository;
    private readonly INotificationStatusRepository _notificationStatusRepository;
    private readonly IPushNotificationService _pushNotificationService;

    public MarkNotificationReadCommand(ICurrentContext currentContext,
        IAuthorizationService authorizationService,
        INotificationRepository notificationRepository,
        INotificationStatusRepository notificationStatusRepository,
        IPushNotificationService pushNotificationService)
    {
        _currentContext = currentContext;
        _authorizationService = authorizationService;
        _notificationRepository = notificationRepository;
        _notificationStatusRepository = notificationStatusRepository;
        _pushNotificationService = pushNotificationService;
    }

    public async Task MarkReadAsync(Guid notificationId)
    {
        if (!_currentContext.UserId.HasValue)
        {
            throw new NotFoundException();
        }

        var notification = await _notificationRepository.GetByIdAsync(notificationId);
        if (notification == null)
        {
            throw new NotFoundException();
        }

        await _authorizationService.AuthorizeOrThrowAsync(_currentContext.HttpContext.User, notification,
            NotificationOperations.Read);

        var notificationStatus = await _notificationStatusRepository.GetByNotificationIdAndUserIdAsync(notificationId,
            _currentContext.UserId.Value);

        if (notificationStatus == null)
        {
            notificationStatus = new NotificationStatus
            {
                NotificationId = notificationId,
                UserId = _currentContext.UserId.Value,
                ReadDate = DateTime.UtcNow
            };

            await _authorizationService.AuthorizeOrThrowAsync(_currentContext.HttpContext.User, notificationStatus,
                NotificationStatusOperations.Create);

            var newNotificationStatus = await _notificationStatusRepository.CreateAsync(notificationStatus);

            await _pushNotificationService.PushNotificationStatusAsync(notification, newNotificationStatus);
        }
        else
        {
            await _authorizationService.AuthorizeOrThrowAsync(_currentContext.HttpContext.User,
                notificationStatus, NotificationStatusOperations.Update);

            notificationStatus.ReadDate = DateTime.UtcNow;

            await _notificationStatusRepository.UpdateAsync(notificationStatus);

            await _pushNotificationService.PushNotificationStatusAsync(notification, notificationStatus);
        }
    }
}
