using Dpz.Core.Entity.Base;
using Dpz.Core.Entity.Base.Indexes;

namespace Dpz.Core.Public.Entity;

[BsonDiscriminator(RootClass = true)]
[BsonKnownTypes(typeof(MembleCommenter), typeof(GuestCommenter))]
public abstract class Commenter
{
    /// <summary>
    /// 昵称
    /// </summary>
    public required string NickName { get; set; }
}

/// <summary>
/// 登录会员评论
/// </summary>
public class MembleCommenter : Commenter
{
    /// <summary>
    /// 头像
    /// </summary>
    public required string Avatar { get; set; }

    /// <summary>
    /// 身份标识
    /// </summary>
    public required string Identity { get; set; }
}

/// <summary>
/// 匿名评论
/// </summary>
public class GuestCommenter : Commenter
{
    /// <summary>
    /// 邮箱
    /// </summary>
    public required string Email { get; set; }

    /// <summary>
    /// 网站
    /// </summary>
    public string? Site { get; set; }
}

public class Comment : BaseEntity, IIndexedEntity<Comment>
{
    /// <summary>
    /// 评论类型
    /// </summary>
    [BsonRepresentation(BsonType.String)]
    public CommentNode Node { get; set; }

    /// <summary>
    /// 关联
    /// </summary>
    public required string Relation { get; set; }

    /// <summary>
    /// 回复时间
    /// </summary>
    [BsonDateTimeOptions(Kind = DateTimeKind.Local)]
    public DateTime PublishTime { get; set; }

    /// <summary>
    /// 评论人
    /// </summary>
    public required Commenter Commenter { get; set; }

    /// <summary>
    /// 回复内容
    /// </summary>
    public required string CommentText { get; set; }

    /// <summary>
    /// 回复ID
    /// </summary>
    public List<ObjectId> Replies { get; set; } = [];

    /// <summary>
    /// 是否删除
    /// </summary>
    public bool IsDelete { get; set; }

    /// <inheritdoc />
    public static IReadOnlyList<EntityIndexDefinition> GetIndexDefinitions() =>
        [
            new()
            {
                Fields =
                [
                    EntityIndexField.Descending<Comment>(x => x.Node),
                    EntityIndexField.Descending<Comment>(x => x.Relation),
                ],
            },
            new() { Fields = [EntityIndexField.Ascending<Comment>(x => x.Node)] },
            new() { Fields = [EntityIndexField.Ascending<Comment>(x => x.Relation)] },
        ];
}