using System;
using Util.Domain.Tests.Samples;
using Xunit;

namespace Util.Domain.Tests.Trees; 

/// <summary>
/// 树形实体测试
/// </summary>
public class TreeEntityBaseTest {
    /// <summary>
    /// 测试初始化路径 - 1级
    /// </summary>
    [Fact]
    public void TestInitPath_1Level() {
        var id = Guid.NewGuid();
        var entity = new TreeEntitySample( id );
        entity.InitPath();
        Assert.Equal( 1, entity.Level );
        Assert.Equal( $"{id},", entity.Path );
    }

    /// <summary>
    /// 测试初始化路径 - 2级
    /// </summary>
    [Fact]
    public void TestInitPath_2Level() {
        var parentId = Guid.NewGuid();
        var id = Guid.NewGuid();
        var parent = new TreeEntitySample( parentId );
        parent.InitPath();
        var child = new TreeEntitySample( id );
        child.InitPath( parent );
        Assert.Equal( 2, child.Level );
        Assert.Equal( $"{parentId},{id},", child.Path );
    }

    /// <summary>
    /// 测试初始化路径 - 3级
    /// </summary>
    [Fact]
    public void TestInitPath_3Level() {
        Guid id = Guid.NewGuid();
        Guid id2 = Guid.NewGuid();
        Guid id3 = Guid.NewGuid();
        var one = new TreeEntitySample( id );
        one.InitPath();
        var two = new TreeEntitySample( id2 );
        two.InitPath( one );
        var three = new TreeEntitySample( id3 );
        three.InitPath( two );
        Assert.Equal( 3, three.Level );
        Assert.Equal( $"{id},{id2},{id3},", three.Path );
    }

    /// <summary>
    /// 测试从路径中获取所有上级节点标识 - 空路径
    /// </summary>
    [Theory]
    [InlineData(null)]
    [InlineData( "" )]
    public void TestGetParentIdsFromPath_Empty( string path ) {
        var entity = new TreeEntitySample( Guid.NewGuid(), path );
        Assert.Empty( entity.GetParentIdsFromPath());
    }

    /// <summary>
    /// 测试从路径中获取所有上级节点标识  - 1级
    /// </summary>
    [Fact]
    public void TestGetParentIdsFromPath_1Level() {
        var entity = new TreeEntitySample( Guid.NewGuid() );
        entity.InitPath();
        Assert.Empty( entity.GetParentIdsFromPath());
    }

    /// <summary>
    /// 测试从路径中获取所有上级节点标识 - 2级
    /// </summary>
    [Fact]
    public void TestGetParentIdsFromPath_2Level() {
        var parentId = Guid.NewGuid();
        var id = Guid.NewGuid();
        var parent = new TreeEntitySample( parentId );
        parent.InitPath();
        var entity = new TreeEntitySample( id );
        entity.InitPath( parent );
        Assert.Single( entity.GetParentIdsFromPath());
        Assert.Equal( parentId, entity.GetParentIdsFromPath()[0] );
    }

    /// <summary>
    /// 测试从路径中获取所有上级节点标识 - 忽略大小写
    /// </summary>
    [Fact]
    public void TestGetParentIdsFromPath_IgnoreCase() {
        Guid id = new Guid( "38F7F754-802F-4F54-925D-CC066483F9DA" );
        var entity = new TreeEntitySample( id, "38F7F754-802F-4F54-925D-CC066483F9da" );
        Assert.Empty( entity.GetParentIdsFromPath());
    }

    /// <summary>
    /// 测试从路径中获取所有上级节点标识 - 包含当前节点
    /// </summary>
    [Fact]
    public void TestGetParentIdsFromPath_ContainsSelf() {
        var entity = new TreeEntitySample( Guid.NewGuid() );
        entity.InitPath();
        Assert.Single( entity.GetParentIdsFromPath( false ));
    }
}