using Hotline.Share.Dtos;
using SqlSugar;
using XF.Domain.Entities;
using XF.Domain.Exceptions;
using XF.Domain.Repository;

namespace Hotline.FlowEngine.Workflows;

public class WorkflowStepHandler : CreationEntity
{
    public string WorkflowId { get; set; }
    public string ExternalId { get; set; }
    public string WorkflowStepId { get; set; }

    /// <summary>
    /// 流程指派类型
    /// </summary>
    public EFlowAssignType FlowAssignType { get; set; }

    public string? UserId { get; set; }
    public string? Username { get; set; }
    public string? OrgId { get; set; }
    public string? OrgName { get; set; }
    public string? RoleId { get; set; }
    public string? RoleName { get; set; }

    /// <summary>
    /// 是否为实际办理者
    /// </summary>
    public bool IsActualHandler { get; set; }

    [Navigate(NavigateType.ManyToOne, nameof(WorkflowStepId))]
    public WorkflowStep WorkflowStep { get; set; }

    #region method

    public static WorkflowStepHandler Create(string workflowId, string externalId, EFlowAssignType flowAssignType, string? userId = null, string? username = null,
        string? orgId = null, string? orgName = null, string? roleId = null, string? roleName = null)
    {
        var handler = new WorkflowStepHandler
        {
            WorkflowId = workflowId,
            ExternalId = externalId,
        };
        handler.Assign(flowAssignType, userId, username, orgId, orgName, roleId, roleName);
        return handler;
    }

        public void Assign(EFlowAssignType assignType, string? userId, string? username,
        string? orgId, string? orgName, string? roleId, string? roleName)
    {
        FlowAssignType = assignType;
        switch (assignType)
        {
            case EFlowAssignType.Org:
                if (string.IsNullOrEmpty(orgId) || string.IsNullOrEmpty(orgName))
                    throw new ArgumentNullException(nameof(orgId));
                OrgId = orgId;
                OrgName = orgName;
                break;
            case EFlowAssignType.User:
                if (string.IsNullOrEmpty(userId) || string.IsNullOrEmpty(username) ||
                   string.IsNullOrEmpty(orgId) || string.IsNullOrEmpty(orgName))
                    throw new ArgumentNullException(nameof(userId));
                UserId = userId;
                Username = username;
                OrgId = orgId;
                OrgName = orgName;
                break;
            //case EFlowAssignType.Role:
            //    if (string.IsNullOrEmpty(roleId) || string.IsNullOrEmpty(roleName))
            //        throw new ArgumentNullException(nameof(roleId));
            //    RoleId = roleId;
            //    RoleName = roleName;
            //    break;
            default:
                throw new ArgumentOutOfRangeException(nameof(assignType), assignType, null);
        }
    }

    public bool IsHandler(ICollection<string> roleIds, string? userId = null, string? orgId = null)
    {
        switch (FlowAssignType)
        {
            case EFlowAssignType.Org:
                if (string.IsNullOrEmpty(OrgId))
                    throw new UserFriendlyException($"数据异常, {nameof(OrgId)}");
                return OrgId.Equals(orgId, StringComparison.OrdinalIgnoreCase);
            case EFlowAssignType.User:
                if (string.IsNullOrEmpty(UserId))
                    throw new UserFriendlyException($"数据异常, {nameof(UserId)}");
                return UserId.Equals(userId, StringComparison.OrdinalIgnoreCase);
            //case EFlowAssignType.Role:
            //    if (string.IsNullOrEmpty(RoleId))
            //        throw new UserFriendlyException($"数据异常, {nameof(RoleId)}");
            //    return roleIds.Any() && roleIds.Contains(RoleId, StringComparer.OrdinalIgnoreCase);
            default:
                throw new ArgumentOutOfRangeException();
        }
    }

    public Kv GetHandler()
    {
        return FlowAssignType switch
        {
            EFlowAssignType.Org => new Kv(OrgId, OrgName),
            EFlowAssignType.User => new Kv(UserId, Username),
            //EFlowAssignType.Role => new Kv(RoleId, RoleName),
            _ => throw new ArgumentOutOfRangeException()
        };
    }

    #endregion
}