using System.Text.Json.Serialization;
using System.Xml.Serialization;
using Dpz.Core.Entity.Base.MapperConfig;
using Dpz.Core.Public.Entity.Seo;
using Mapster;

namespace Dpz.Core.Public.ViewModel;

/// <summary>
/// Represents the VmPageMetadata type.
/// </summary>
public class VmPageMetadata : IHaveCustomMapping
{
    /// <summary>
    /// Gets or sets Id.
    /// </summary>
    public string? Id { get; set; }

    /// <summary>
    /// 标准化关联路径（小写）
    /// </summary>
    public string? RelationPath { get; set; }

    /// <summary>
    /// 是否公共元数据。
    /// </summary>
    public bool IsPublicMetadata { get; set; }

    /// <summary>
    /// 公共元数据是否应用到没有显式配置的页面。
    /// </summary>
    public bool ApplyToUnconfiguredPages { get; set; }

    /// <summary>
    /// 页面元数据继承方式。
    /// </summary>
    public PageMetadataInheritanceMode InheritanceMode { get; set; } =
        PageMetadataInheritanceMode.Inherit;

    /// <summary>
    /// 结构化路由关联。
    /// </summary>
    public PageMetadataRoute? Route { get; set; }

    /// <summary>
    /// 标准化路由键。
    /// </summary>
    public string? RouteKey { get; set; }

    /// <summary>
    /// 非必要不要设置
    /// </summary>
    public string? Title { get; set; }

    /// <summary>
    /// 关键字
    /// </summary>
    public List<string> Keywords { get; set; } = [];

    /// <summary>
    /// 描述
    /// </summary>
    public string? Description { get; set; }

    /// <summary>
    /// 其它元数据
    /// </summary>
    [XmlIgnore]
    public Dictionary<string, string> Metas { get; set; } = [];

    /// <summary>
    /// Gets or sets SerializableMetas.
    /// </summary>
    [XmlArray(ElementName = "Metas")]
    [XmlArrayItem(ElementName = "Meta")]
    [JsonIgnore]
    public KeyValueElement[] SerializableMetas =>
        Metas.Select(x => new KeyValueElement(x.Key, x.Value)).ToArray();

    /// <summary>
    /// 关联，唯一 {controller,action,id...}。仅用于兼容旧数据。
    /// </summary>
    public List<string> Relations { get; set; } = [];

    /// <summary>
    /// Executes CreateMappings.
    /// </summary>
    public static void CreateMappings(TypeAdapterConfig cfg)
    {
        cfg.NewConfig<PageMetadata, VmPageMetadata>().MapWith(x => ToViewModel(x));
        cfg.NewConfig<VmPageMetadata, PageMetadata>().MapWith(x => ToEntity(x));
    }

    private static VmPageMetadata ToViewModel(PageMetadata source)
    {
        return new VmPageMetadata
        {
            Id = source.Id.ToString(),
            RelationPath = source.RelationPath,
            IsPublicMetadata = source.IsPublicMetadata,
            ApplyToUnconfiguredPages = source.ApplyToUnconfiguredPages,
            InheritanceMode = source.InheritanceMode,
            Route = source.Route,
            RouteKey = source.RouteKey,
            Title = source.Title,
            Keywords = source.Keywords,
            Description = source.Description,
            Metas = source.Metas,
            Relations = source.Relations,
        };
    }

    private static PageMetadata ToEntity(VmPageMetadata source)
    {
        return new PageMetadata
        {
            IsPublicMetadata = source.IsPublicMetadata,
            ApplyToUnconfiguredPages = source.ApplyToUnconfiguredPages,
            InheritanceMode = source.InheritanceMode,
            Route = source.Route,
            RouteKey = source.RouteKey,
            Title = source.Title,
            Keywords = source.Keywords,
            Description = source.Description,
            Metas = source.Metas,
            Relations = source.Relations,
        };
    }
}