using System.Linq.Expressions;

namespace DigitalData.EmailProfiler.Application.Interfaces.Repositories;

/// <summary>
/// Base repository interface for common CRUD operations.
/// </summary>
/// <typeparam name="T">Entity type</typeparam>
public interface IRepository<T> where T : class
{
    Task<T?> GetByIdAsync(int id, CancellationToken cancellationToken = default);
    Task<IEnumerable<T>> GetAllAsync(CancellationToken cancellationToken = default);
    Task<IEnumerable<T>> FindAsync(Expression<Func<T, bool>> predicate, CancellationToken cancellationToken = default);
    Task<T> AddAsync(T entity, CancellationToken cancellationToken = default);
    Task UpdateAsync(T entity, CancellationToken cancellationToken = default);
    Task DeleteAsync(T entity, CancellationToken cancellationToken = default);
    Task<bool> ExistsAsync(Expression<Func<T, bool>> predicate, CancellationToken cancellationToken = default);
    Task<int> CountAsync(Expression<Func<T, bool>>? predicate = null, CancellationToken cancellationToken = default);
}