/*-------------------------------------------------------------------------
 * 功能描述：FileSwitch
 * 作者：xulisong
 * 创建时间： 2019/5/28 10:31:29
 * 版本号：v1.0
 *  -------------------------------------------------------------------------*/

using Autodesk.Revit.DB;
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace FWindSoft.Revit
{
    /// <summary>
    /// 文件状态
    /// </summary>
    [Flags]
    public enum DocumentState
    {
        /// <summary>
        /// 不可用
        /// </summary>
        Invalid=0,
        /// <summary>
        /// 操作前，已经打开
        /// </summary>
        Exist=1,
        /// <summary>
        /// 操作时，实时打开
        /// </summary>
        New=2,
    }
    /// <summary>
    /// revit 文件开关
    /// </summary>
    public class RevitFileSwitch
    {
        public RevitFileSwitch(string path)
        {
            Path = path;
            State = DocumentState.Invalid;
        }
        /// <summary>
        /// 文件路径
        /// </summary>
        public string Path { get; private set; }
        /// <summary>
        /// 关联revit文件
        /// </summary>
        public Document Document { get; private set; }

        /// <summary>
        /// 文件状态
        /// </summary>
        public DocumentState State { get; private set; }
        /// <summary>
        /// 打开模型
        /// </summary>
        public void On()
        {
            if (this.Document != null)
            {
                return;
            }
            string path = Path;
            var sets = RevitCore.App.Documents;
            if (Path == null || !File.Exists(path))
            {
                return;
            }
            foreach (Document document in sets)
            {
                if (document.PathName == path)
                {
                    Document = document;
                    State = DocumentState.Exist;
                    break;
                }
            }
            if (Document == null)
            {
                Document = RevitCore.App.OpenDocumentFile(path);
                State = DocumentState.New;
            }                   
        }
        /// <summary>
        /// 关闭模型
        /// </summary>
        public void Off()
        {
            Document?.Close();
        }
        /// <summary>
        /// 关闭新状态的模型
        /// </summary>
        public void OffNew()
        {
            if (DocumentState.New == State)
            {
                Document?.Close();
            }           
        }
    }
}