using Hotline.FlowEngine.Definitions;
using Hotline.Orders;
using Hotline.Share.Dtos.FlowEngine;
using Hotline.Share.Enums.FlowEngine;
using Hotline.Share.Enums.Order;
using SqlSugar;
using XF.Domain.Entities;
using XF.Domain.Exceptions;
using XF.Domain.Extensions;
using XF.Domain.Repository;

namespace Hotline.FlowEngine.Workflows;

public class Workflow : CreationEntity
{
    public string DefinitionId { get; set; }

    #region 业务模块

    [SugarColumn(IsNullable = true)]
    public string? ModuleId { get; set; }

    [SugarColumn(IsNullable = true)]
    public string? ModuleName { get; set; }

    [SugarColumn(IsNullable = true)]
    public string? ModuleCode { get; set; }

    #endregion

    [SugarColumn(Length = 2000)]
    public string Title { get; set; }

    /// <summary>
    /// 到期时间(期满时间)
    /// </summary>
    public DateTime ExpiredTime { get; set; }

    /// <summary>
    /// 办理时间限制(如：24小时、7个工作日)
    /// </summary>
    public string TimeLimit { get; set; }

    /// <summary>
    /// 流程流转到end节点的时间（配置模板的end节点前一个节点办理完成时间）
    /// </summary>
    public DateTime? CompleteTime { get; set; }

    /// <summary>
    /// 流程状态
    /// </summary>
    public EWorkflowStatus Status { get; set; }

    #region 实际办理节点，部门

    /// <summary>
    /// 实际办理节点名称（会签状态此字段保存最外层会签办理节点名称）
    /// </summary>
    [SugarColumn(IsNullable = true)]
    public string? ActualHandleStepName { get; set; }

    /// <summary>
    /// 到达实际办理节点时间（stepBox创建时间）
    /// </summary>
    public DateTime? ActualHandleStepTime { get; set; }

    /// <summary>
    /// 实际办理部门名称
    /// </summary>
    [SugarColumn(IsNullable = true)]
    public string? ActualHandleOrgName { get; set; }

    /// <summary>
    /// 实际办理部门编码
    /// </summary>
    [SugarColumn(IsNullable = true)]
    public string? ActualHandleOrgCode { get; set; }

    #endregion

    /// <summary>
    /// 会签类型
    /// </summary>
    public ECounterSignType? CounterSignType { get; set; }

    /// <summary>
    /// 会签办理节点code，嵌套会签为最外层会签办理节点code（不处于会签状态则无值）
    /// </summary>
    [SugarColumn(IsNullable = true)]
    public string? TopCountersignStepCode { get; set; }

    /// <summary>
    /// 处理方式（直办、交办）
    /// </summary>
    [SugarColumn(DefaultValue = "10")]
    public EProcessType ProcessType { get; set; } = EProcessType.Zhiban;

    /// <summary>
    /// 交办时间
    /// </summary>
    public DateTime AssignTime { get; set; }

    /// <summary>
    /// 办理意见（冗余，办理中...or 最终办理意见）
    /// </summary>
    [SugarColumn(Length = 2000)]
    public string Opinion { get; set; } = "办理中...";

    /// <summary>
    /// 办理人id
    /// </summary>
    [SugarColumn(ColumnDataType = "json", IsJson = true)]
    public List<HandlerGroupItem> HandlerUsers { get; set; } = new();

    /// <summary>
    /// 办理部门code
    /// </summary>
    [SugarColumn(ColumnDataType = "json", IsJson = true)]
    public List<HandlerGroupItem> HandlerOrgs { get; set; } = new();

    /// <summary>
    /// 指派部门code（所有流经部门留痕）
    /// </summary>
    [SugarColumn(ColumnDataType = "json", IsJson = true)]
    public List<string> AssignOrgCodes { get; set; } = new();

    /// <summary>
    /// 指派办理人Id（所有流经办理人留痕）
    /// </summary>
    [SugarColumn(ColumnDataType = "json", IsJson = true)]
    public List<string> AssignUserIds { get; set; } = new();

    /// <summary>
    /// 外部业务唯一标识
    /// </summary>
    public string ExternalId { get; set; }

    [Navigate(NavigateType.OneToOne, nameof(DefinitionId))]
    public Definition Definition { get; set; }

    /// <summary>
    /// 补充信息
    /// </summary>
    [Navigate(NavigateType.OneToMany, nameof(WorkflowSupplement.WorkflowId))]
    public List<WorkflowSupplement> Supplements { get; set; }

    ///// <summary>
    ///// 接办信息
    ///// </summary>
    //[Navigate(NavigateType.OneToMany, nameof(WorkflowAssign.WorkflowId))]
    //public List<WorkflowAssign> Assigns { get; set; }

    /// <summary>
    /// 会签
    /// </summary>
    [Navigate(NavigateType.OneToMany, nameof(WorkflowCountersign.WorkflowId))]
    public List<WorkflowCountersign> Countersigns { get; set; }

    /// <summary>
    /// 主节点，依据流转进度动态生成或删除
    /// </summary>
    [SugarColumn(IsIgnore = true)]
    public List<WorkflowStep> StepBoxes { get; set; }

    [SugarColumn(IsIgnore = true)]
    public List<WorkflowTrace> Traces { get; set; } = new();

    #region Method

    /// <summary>
    /// 流程结束
    /// </summary>
    public void Complete()
    {
        Status = EWorkflowStatus.Completed;
        CompleteTime = DateTime.Now;
    }

    public void Terminate(string opinion)
    {
        Status = EWorkflowStatus.Terminated;
        CompleteTime = DateTime.Now;
        Opinion = opinion;
    }

    ///// <summary>
    ///// 流程进行流转
    ///// </summary>
    //public void FLow(string currentStepName, DateTime currentStepTime, string? currentCountersignCode = null)
    //{
    //    ActualHandleStepName = currentStepName;
    //    ActualHandleStepTime = currentStepTime;
    //    if (!string.IsNullOrEmpty(currentCountersignCode))
    //        TopCountersignStepCode = currentCountersignCode;
    //}

    /// <summary>
    /// 更新实际办理节点、部门数据
    /// </summary>
    public void ActualHandle(
        string actualHandleStepName, DateTime actualHandleStepTime,
        string actualHandleOrgName, string actualHandleOrgCode)
    {
        ActualHandleStepName = actualHandleStepName;
        ActualHandleStepTime = actualHandleStepTime;
        ActualHandleOrgName = actualHandleOrgName;
        ActualHandleOrgCode = actualHandleOrgCode;
    }

    /// <summary>
    /// 更新workflow中实际办理节点数据（节点，时间，部门）
    /// </summary>
    public void SetWorkflowActualHandleInfo(WorkflowStep currentStepBox, WorkflowStep nextStepBox, string handlerOrgName, string handlerOrgCode)
    {
        //1.不在会签中，未发起会签(普通处理) 2.不在会签中，发起会签（保存会签节点），3.会签中，不更新
        if (IsInCountersign()) return;

        if (nextStepBox.StepType is EStepType.CountersignEnd or EStepType.End) return;

        ActualHandle(currentStepBox.Name, currentStepBox.CreationTime, handlerOrgName, handlerOrgCode);


        //if (isStartCountersign)
        //    SetTopCountersignStepCode(stepBox.Code);
    }

    /// <summary>
    /// 检查会签是否结束
    /// </summary>
    public bool CheckIfCountersignOver()
    {
        //var countersignStepBox = StepBoxes.First(d => d.Code == TopCountersignStepCode);
        //var isCountersignOver = countersignStepBox.Steps.All(d =>
        //    d.Status is EWorkflowStepStatus.Completed &&
        //    (!d.HasStartCountersign || d.IsCountersignComplete.GetValueOrDefault()));
        //return isCountersignOver;
        return Countersigns.All(d => d.IsCompleted());
    }


    /// <summary>
    /// 流程是否处于会签中
    /// </summary>
    /// <returns></returns>
    public bool IsInCountersign() => !string.IsNullOrEmpty(TopCountersignStepCode);

    /// <summary>
    /// 开始会签
    /// </summary>
    public void StartCountersign(string currentCountersignCode, ECounterSignType counterSignType)
    {
        TopCountersignStepCode = currentCountersignCode;
        CounterSignType = counterSignType;
    }

    /// <summary>
    /// 结束流程会签状态
    /// </summary>
    public void EndCountersign() => TopCountersignStepCode = null;

    /// <summary>
    /// 重置最终办理意见
    /// </summary>
    public void ResetOption() => Opinion = "办理中...";

    /// <summary>
    /// 重新设置办理人（删除当前待办人/部门），撤回/跳转场景，因当前办理人不是流程指定办理人
    /// </summary>
    /// <param name="assignType"></param>
    /// <param name="handlerObjects"></param>
    public void ResetHandlers(EFlowAssignType assignType, List<HandlerGroupItem> handlerObjects)
    {
        HandlerOrgs = new List<HandlerGroupItem>();
        HandlerUsers = new List<HandlerGroupItem>();

        SetHandlers(assignType, handlerObjects);
    }

    /// <summary>
    /// 更新当前办理人(待办人或部门)，正常流转场景
    /// </summary>
    public void UpdateHandlers(string handlerId, string handlerOrg, EFlowAssignType assignType, List<HandlerGroupItem> handlerObjects)
    {
        RemoveCurrentHandleGroup(handlerId, handlerOrg);

        SetHandlers(assignType, handlerObjects);
    }

    private void SetHandlers(EFlowAssignType assignType, List<HandlerGroupItem> handlerObjects)
    {
        switch (assignType)
        {
            case EFlowAssignType.Org:
                HandlerOrgs.AddRange(handlerObjects);
                HandlerOrgs = HandlerOrgs.Distinct().ToList();
                break;
            case EFlowAssignType.User:
                HandlerUsers.AddRange(handlerObjects);
                HandlerUsers = HandlerUsers.Distinct().ToList();
                break;
            default:
                throw new ArgumentOutOfRangeException(nameof(assignType), assignType, null);
        }
    }

    /// <summary>
    /// 更新当前办理人（逐级退回场景）
    /// </summary>
    /// <param name="handlerId"></param>
    /// <param name="handlerOrg"></param>
    /// <param name="prevStep"></param>
    public void UpdatePreviousHandlers(string handlerId, string handlerOrg, WorkflowStep prevStep)
    {
        RemoveCurrentHandleGroup(handlerId, handlerOrg);

        var groupId = Guid.NewGuid().ToString();
        var handlerObjects = prevStep.Handlers.Select(d => new HandlerGroupItem
        {
            GroupId = groupId,
            Id = d.Id,
            Name = d.Name
        });
        switch (prevStep.HandlerType)
        {
            case EHandlerType.OrgLevel:
            case EHandlerType.OrgType:
            case EHandlerType.AssignOrg:
                HandlerOrgs.AddRange(handlerObjects);
                HandlerOrgs = HandlerOrgs.Distinct().ToList();
                break;
            case EHandlerType.Role:
            case EHandlerType.AssignUser:
                HandlerUsers.AddRange(handlerObjects);
                HandlerUsers = HandlerUsers.Distinct().ToList();
                break;
            default:
                throw new ArgumentOutOfRangeException();
        }
    }

    /// <summary>
    /// 当前用户是否可以办理该流程
    /// </summary>
    /// <returns></returns>
    public bool CanHandle(string userId, string orgCode) =>
        Status is EWorkflowStatus.Runnable or EWorkflowStatus.Marked
        && (HandlerUsers.Any(d => d.Id == userId) || HandlerOrgs.Any(d => d.Id == orgCode));

    private void RemoveCurrentHandleGroup(string handlerId, string handlerOrg)
    {
        if (string.IsNullOrEmpty(handlerId) && string.IsNullOrEmpty(handlerOrg))
            throw new UserFriendlyException($"{nameof(RemoveCurrentHandleGroup)}, 办理对象参数为空");
        var groupOrg = HandlerOrgs.FirstOrDefault(d => d.Id == handlerOrg);
        if (groupOrg != null)
        {
            HandlerOrgs.RemoveAll(d => d.GroupId == groupOrg.GroupId);
        }

        var groupUser = HandlerUsers.FirstOrDefault(d => d.Id == handlerId);
        if (groupUser != null)
        {
            HandlerUsers.RemoveAll(d => d.GroupId == groupUser.GroupId);
        }
    }

    public void Assign(EFlowAssignType type, string handler)
    {
        handler = handler.ToLower();
        switch (type)
        {
            case EFlowAssignType.Org:
                var orgCodes = handler.GetHigherOrgCodes(true).ToList();
                AssignOrgCodes.AddRange(orgCodes);
                AssignOrgCodes = AssignOrgCodes.Distinct().ToList();
                break;
            case EFlowAssignType.User:
                if (!AssignUserIds.Exists(d => d == handler))
                    AssignUserIds.Add(handler);
                break;
            default:
                throw new ArgumentOutOfRangeException(nameof(type), type, null);
        }
    }

    public void Assign(EFlowAssignType type, IEnumerable<string> handlers)
    {
        handlers = handlers.Select(d => d.ToLower());
        switch (type)
        {
            case EFlowAssignType.Org:
                var orgCodes = handlers.SelectMany(d => d.GetHigherOrgCodes(true)).ToList();
                AssignOrgCodes.AddRange(orgCodes);
                AssignOrgCodes = AssignOrgCodes.Distinct().ToList();
                break;
            case EFlowAssignType.User:
                AssignUserIds.AddRange(handlers);
                AssignUserIds = AssignUserIds.Distinct().ToList();
                break;
            default:
                throw new ArgumentOutOfRangeException(nameof(type), type, null);
        }
    }

    #endregion
}

/// <summary>
/// 办理对象分组（以办理step分组，多人办理一个step为一组）
/// </summary>
public class HandlerGroupItem : IdName
{
    public string GroupId { get; set; }
}