using Microsoft.EntityFrameworkCore;
using WorkFlow.Application.Contracts.Repositories;
using WorkFlow.Domain.Entities;

namespace WorkFlow.Infrastructure.Repositories;

/// <summary>
/// Repository implementation for retrieving <see cref="ProfileObject"/> entities from the database.
/// </summary>
public class ProfileObjRepository : IProfileObjRepository
{
    private readonly WFDBContext _context;

    /// <summary>
    /// Initializes a new instance of the <see cref="ProfileObjRepository"/> class.
    /// </summary>
    /// <param name="context">The database context used for accessing profile data.</param>
    public ProfileObjRepository(WFDBContext context)
    {
        _context = context;
    }

    /// <summary>
    /// Retrieves the list of <see cref="ProfileObject"/> associated with a given user ID and profile ID by calling a database function.
    /// </summary>
    /// <param name="userId">The unique identifier of the user whose profile is to be retrieved.</param>
    /// <param name="profileId">The unique identifier of the profile whose object is to be retrieved.</param>
    /// <param name="cancel">Propagates notification that operations should be canceled.</param>
    /// <returns>
    /// A task that represents the asynchronous operation. The task result contains the <see cref="ProfileObject"/> object if found; otherwise, <c>null</c>.
    /// </returns>
    /// <remarks>
    /// Logs an error if no profile is found, or if multiple profiles are returned, indicating potential data issues.
    /// </remarks>
    public async Task<IEnumerable<ProfileObject>> ReadAsync(int userId, int profileId, CancellationToken cancel = default)
        => await _context.Objects
            .FromSqlRaw("SELECT * FROM [FNMWF_GET_PROFILE_OBJECTS] ({0}, {1})", userId, profileId)
            .ToListAsync(cancel);
}