// ***********************************************************************
// Assembly         : FCS.Lib.Utility
// Author          : fhdk
// Created          : 2023 01 23 07:31
// 
// Last Modified By: fhdk
// Last Modified On : 2023 03 14 09:16
// ***********************************************************************
// <copyright file="IAsyncReadonlyRepo.cs" company="FCS">
//     Copyright (C) 2023-2023 FCS Frede's Computer Services.
//     This program is free software: you can redistribute it and/or modify
//     it under the terms of the GNU Affero General Public License as
//     published by the Free Software Foundation, either version 3 of the
//     License, or (at your option) any later version.
// 
//     This program is distributed in the hope that it will be useful,
//     but WITHOUT ANY WARRANTY; without even the implied warranty of
//     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
//     GNU Affero General Public License for more details.
// 
//     You should have received a copy of the GNU Affero General Public License
//     along with this program.  If not, see [https://www.gnu.org/licenses]
// </copyright>
// <summary></summary>
// ***********************************************************************

using System;
using System.Collections.Generic;
using System.Linq;
using System.Linq.Expressions;
using System.Threading.Tasks;

namespace FCS.Lib.Utility;

/// <summary>
/// Interface IRepositoryAsync
/// </summary>
/// <typeparam name="TEntity">The type of the t entity.</typeparam>
public interface IAsyncReadonlyRepo<TEntity> where TEntity : class
{
    /// <summary>
    ///     Queryable 
    /// </summary>
    /// <returns>IQueryable&lt;TEntity&gt;.</returns>
    IQueryable<TEntity> All();

    /// <summary>
    ///     All items asynchronous.
    /// </summary>
    /// <param name="predicate">The predicate.</param>
    /// <returns>Task&lt;IList&lt;TEntity&gt;&gt;.</returns>
    Task<IList<TEntity>> AllAsync(Expression<Func<TEntity, bool>> predicate);

    /// <summary>
    ///   Any item asynchronous.
    /// </summary>
    /// <param name="predicate">The predicate.</param>
    /// <returns>Task&lt;System.Boolean&gt;.</returns>
    Task<bool> AnyAsync(Expression<Func<TEntity, bool>> predicate);

    /// <summary>
    ///     Finds the asynchronous.
    /// </summary>
    /// <param name="predicate">The predicate.</param>
    /// <returns>Task&lt;TEntity&gt;.</returns>
    Task<TEntity> FindAsync(Expression<Func<TEntity, bool>> predicate);

    /// <summary>
    ///     Firsts the asynchronous.
    /// </summary>
    /// <param name="predicate">The predicate.</param>
    /// <returns>Task&lt;TEntity&gt;.</returns>
    Task<TEntity> FirstAsync(Expression<Func<TEntity, bool>> predicate);

    /// <summary>
    ///     Firsts the or default asynchronous.
    /// </summary>
    /// <param name="predicate">The predicate.</param>
    /// <returns>Task&lt;TEntity&gt;.</returns>
    Task<TEntity> FirstOrDefaultAsync(Expression<Func<TEntity, bool>> predicate);

    /// <summary>
    ///     Anies the specified predicate.
    /// </summary>
    /// <param name="predicate">The predicate.</param>
    /// <returns><c>true</c> if XXXX, <c>false</c> otherwise.</returns>
    bool Any(Expression<Func<TEntity, bool>> predicate);

    /// <summary>
    ///     Gets the by identifier.
    /// </summary>
    /// <param name="id">The identifier.</param>
    /// <returns>TEntity.</returns>
    TEntity GetById(string id);
}