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

namespace Dpz.Core.Public.Entity;

[BsonIgnoreExtraElements]
public class Article : BaseEntity, IIndexedEntity<Article>
{
    /// <summary>
    /// 文章标题
    /// </summary>
    public required string Title { get; set; }

    /// <summary>
    /// 简介
    /// </summary>
    public string? Introduction { get; set; }

    /// <summary>
    /// Markdown 内容
    /// </summary>
    public required string Markdown { get; set; }

    /// <summary>
    /// 主图片
    /// </summary>
    public string? MainImage { get; set; }

    /// <summary>
    /// 主图片元信息
    /// <see cref="Article.MainImage"/>后续将会废弃
    /// </summary>
    public ImageMetadata? MainImageMetadata { get; set; }

    /// <summary>
    /// 回复量
    /// </summary>
    public int CommentCount { get; set; }

    /// <summary>
    /// 查看量
    /// </summary>
    public int ViewCount { get; set; }

    /// <summary>
    /// 文章相关图片地址
    /// </summary>
    public List<string> ImagesAddress { get; set; } = [];

    /// <summary>
    /// 文章相关图片的元信息
    /// <see cref="Article.MainImage"/>后续将会废弃
    /// </summary>
    public List<ImageMetadata> Images { get; set; } = [];

    /// <summary>
    /// 标签
    /// </summary>
    public List<string> Tags { get; set; } = [];

    /// <summary>
    /// 作者
    /// </summary>
    public required UserInfo Author { get; set; }

    /// <summary>
    /// 来源
    /// </summary>
    public string? From { get; set; }

    /// <summary>
    /// 发表时间
    /// </summary>
    [BsonDateTimeOptions(Kind = DateTimeKind.Local)]
    public DateTime CreateTime { get; set; }

    /// <summary>
    /// 最后修改时间
    /// </summary>
    [BsonDateTimeOptions(Kind = DateTimeKind.Local)]
    public DateTime LastUpdateTime { get; set; }

    /// <summary>
    /// 分类
    /// </summary>
    public List<string> Categories { get; set; } = [];

    /// <summary>
    /// 广告权重
    /// </summary>
    public double AdWeight { get; set; }

    /// <inheritdoc />
    public static IReadOnlyList<EntityIndexDefinition> GetIndexDefinitions() =>
        [
            new() { Fields = [EntityIndexField.Ascending("Author._id")] },
            new() { Fields = [EntityIndexField.Ascending<Article>(x => x.CreateTime)] },
            new() { Fields = [EntityIndexField.Descending<Article>(x => x.Tags)] },
            new() { Fields = [EntityIndexField.Ascending<Article>(x => x.Tags)] },
            new() { Fields = [EntityIndexField.Ascending<Article>(x => x.Title)] },
            new() { Fields = [EntityIndexField.Ascending<Article>(x => x.From)] },
            new()
            {
                Fields =
                [
                    EntityIndexField.Text<Article>(x => x.Markdown),
                    EntityIndexField.Text<Article>(x => x.Title),
                ],
                DefaultLanguage = "english",
                TextWeights = new Dictionary<string, int>
                {
                    [nameof(Markdown)] = 1,
                    [nameof(Title)] = 1,
                },
            },
        ];
}