using Easy;
using Easy.Authorization.Abstractions;
using Easy.DDD.Domain;
using Easy.DDD.Domain.Repositories;
using Microsoft.EntityFrameworkCore;
using PermissionManagement.Api.DDD.Domain.Entites;

namespace PermissionManagement.Api.DDD.Domain;

public class PermissionManager : DomainService, IPermissionManager
{
    protected IRepository<PermissionGrant> PermissionGrantRepository { get; }
    protected IPermissionDefinitionManager PermissionDefinitionManager { get; }

    public PermissionManager(IRepository<PermissionGrant> permissionGrantRepository,
        IPermissionDefinitionManager permissionDefinitionManager)
    {
        PermissionGrantRepository = permissionGrantRepository;
        PermissionDefinitionManager = permissionDefinitionManager;
    }
    public async Task SetAsync(string permissionName, string providerName, Guid providerKey, bool isGranted)
    {
        var permission = PermissionDefinitionManager.Get(permissionName);
        When.Is(!permission.IsEnabled, $"这个权限权限 '{permissionName}' 被禁用!");

        if (isGranted)
        {
            var permissionGrant = new PermissionGrant(GuidGenerator.Create(), permission.PermissionName, providerName, providerKey);
            await PermissionGrantRepository.AddAsync(permissionGrant, true);
        }
        else
        {
            var permissionGrant = await PermissionGrantRepository
                .Where(o => o.PermissionName == permissionName)
                .Where(o => o.ProviderKey == providerKey)
                .FirstOrDefaultAsync();
            if (permissionGrant == null)
            {
                return;
            }

            await PermissionGrantRepository.RemoveAsync(permissionGrant, true);
        }
    }


}