using System.Collections.Generic;
using System.Threading.Tasks;

namespace learun.workflow
{
	/// <summary>
	/// 版 本 EasyCode EC管理后台
	/// Copyright (c) 2019-present EC管理有限公司
	/// 创建人：tobin
	/// 日 期：2019.11.22
	/// 描 述：工作流引擎
	/// </summary>
	public interface NWFIEngine
	{
		#region 流程模板操作方法

		/// <summary>
		/// 获取流程模板
		/// </summary>
		/// <returns></returns>
		string GetScheme();

		/// <summary>
		/// 获取流程模板
		/// </summary>
		/// <returns></returns>
		NWFScheme GetSchemeObj();

		/// <summary>
		/// 获取开始节点
		/// </summary>
		/// <returns>节点信息</returns>
		NWFNodeInfo GetStartNode();

		/// <summary>
		/// 获取节点
		/// </summary>
		/// <param name="nodeId">流程处理节点ID</param>
		/// <returns>节点信息</returns>
		NWFNodeInfo GetNode(string nodeId);

		/// <summary>
		/// 获取两节点间的线条
		/// </summary>
		/// <param name="fromNodeId">开始节点</param>
		/// <param name="toNodeId">结束节点</param>
		/// <param name="list">线条列表</param>
		/// <param name="nodes"></param>
		bool GetLines(string fromNodeId, string toNodeId, List<NWFLineInfo> list, Dictionary<string, string> nodes = null);

		/// <summary>
		/// 获取下一节点
		/// </summary>
		/// <param name="nodeId">当前节点Id</param>
		/// <param name="code">节点操作码 agree 同意 disagree 不同意 lrtimeout 超时</param>
		/// <param name="lineList"></param>
		/// <returns>节点信息列表</returns>
		List<NWFNodeInfo> GetNextNodes(string nodeId, string code, List<NWFLineInfo> lineList);

		/// <summary>
		/// 获取上一节点列表
		/// </summary>
		/// <param name="nodeId">当前节点Id</param>
		/// <returns></returns>
		List<string> GetPreNodes(string nodeId);

		/// <summary>
		/// 判断两节点是否连接
		/// </summary>
		/// <param name="formNodeId">开始节点</param>
		/// <param name="toNodeId">结束节点</param>
		/// <returns></returns>
		bool IsToNode(string formNodeId, string toNodeId);

		#endregion 流程模板操作方法

		#region 流程运行操作方法

		/// <summary>
		/// 获取配置参数信息
		/// </summary>
		/// <returns></returns>
		NWFEngineParamConfig GetConfig();

		/// <summary>
		/// 获取接下来的任务节点信息
		/// </summary>
		/// <param name="beginNode">起始节点</param>
		/// <param name="code">节点操作码 agree 同意 disagree 不同意 lrtimeout 超时</param>
		/// <param name="isGetAuditors">是否获取下一节点审核人</param>
		/// <param name="lineList">经过的线段需要执行操作的</param>
		/// <returns></returns>
		Task<List<NWFNodeInfo>> GetNextTaskNode(NWFNodeInfo beginNode, string code, bool isGetAuditors, List<NWFLineInfo> lineList);

		#endregion 流程运行操作方法
	}
}