using System;
using System.Collections.Generic;

namespace Masuit.Tools.Models;

/// <summary>
/// 树形实体接口
/// </summary>
/// <typeparam name="T"></typeparam>
public interface ITree<T> : ITreeParent<T>, ITreeChildren<T>
{
    /// <summary>
    /// 名字
    /// </summary>
    string Name { get; set; }
}

/// <summary>
/// 带子级的树形实体接口
/// </summary>
/// <typeparam name="T"></typeparam>
public interface ITreeChildren<T>
{
    /// <summary>
    /// 子级
    /// </summary>
    ICollection<T> Children { get; set; }
}

/// <summary>
/// 带父节点的树形实体接口
/// </summary>
/// <typeparam name="T"></typeparam>
public interface ITreeParent<T>
{
    /// <summary>
    /// 父节点
    /// </summary>
    T Parent { get; set; }
}

/// <summary>
/// 树形实体（值类型主键）
/// </summary>
/// <typeparam name="T"></typeparam>
/// <typeparam name="TKey"></typeparam>
public interface ITreeEntity<T, TKey> : ITreeChildren<T> where TKey : struct, IComparable
{
    /// <summary>
    /// 主键id
    /// </summary>
    public TKey Id { get; set; }

    /// <summary>
    /// 父级id
    /// </summary>
    public TKey? ParentId { get; set; }
}

/// <summary>
/// 树形实体(字符串主键)
/// </summary>
/// <typeparam name="T"></typeparam>
public interface ITreeEntity<T> : ITreeChildren<T>
{
    /// <summary>
    /// 主键id
    /// </summary>
    public string Id { get; set; }

    /// <summary>
    /// 父级id
    /// </summary>
    public string ParentId { get; set; }
}