using Dpz.Core.Entity.Base.MapperConfig;
using Dpz.Core.EnumLibrary;
using Dpz.Core.Public.Entity;
using Mapster;

namespace Dpz.Core.Public.ViewModel;

/// <summary>
/// 评论 平铺
/// </summary>
public class VmCommentFlat : IHaveCustomMapping
{
    /// <summary>
    /// Gets or sets Id.
    /// </summary>
    public required string Id { get; set; }

    /// <summary>
    /// 评论类型
    /// </summary>
    public CommentNode Node { get; set; }

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

    /// <summary>
    /// 回复时间
    /// </summary>
    public DateTime PublishTime { get; set; }

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

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

    /// <summary>
    /// 昵称
    /// </summary>
    public string? NickName { get; set; }

    /// <summary>
    /// 头像
    /// </summary>
    public string? Avatar { get; set; }

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

    /// <summary>
    /// 邮箱MD5
    /// </summary>
    public string? EmailMd5 { get; set; }

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

    /// <summary>
    /// 是否匿名评论
    /// </summary>
    public bool IsGuest { get; set; }

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

    /// <summary>
    /// Executes CreateMappings.
    /// </summary>
    public static void CreateMappings(TypeAdapterConfig cfg)
    {
        cfg.NewConfig<Comment, VmCommentFlat>().MapWith(x => CreateVmCommentFlat(x));
    }

    private static VmCommentFlat CreateVmCommentFlat(Comment entity)
    {
        var viewModel = new VmCommentFlat
        {
            Id = entity.Id.ToString(),
            Node = entity.Node,
            Relation = entity.Relation,
            PublishTime = entity.PublishTime.ToLocalTime(),
            CommentText = entity.CommentText,
            Replies = entity.Replies.Select(x => x.ToString()).ToList(),
            NickName = entity.Commenter.NickName,
            IsDelete = entity.IsDelete,
        };

        if (entity.IsDelete)
        {
            viewModel.IsGuest = true;
            viewModel.NickName = entity.Commenter.NickName;
            viewModel.CommentText = "该用户发言因某些原因已被删除";
            viewModel.EmailMd5 = viewModel.Id.GenerateHashMd5();
        }
        else if (entity.Commenter is GuestCommenter guestCommenter)
        {
            viewModel.IsGuest = true;
            viewModel.EmailMd5 = guestCommenter.Email.GenerateHashMd5();
            viewModel.Site = guestCommenter.Site;
        }
        else if (entity.Commenter is MembleCommenter membleCommenter)
        {
            viewModel.IsGuest = false;
            viewModel.Identity = membleCommenter.Identity;
            viewModel.Avatar = membleCommenter.Avatar;
        }

        return viewModel;
    }
}