using System;

    using Microsoft.Xrm.Sdk;

    using Microsoft.Crm.Sdk.Messages;

    using Microsoft.Xrm.Sdk.Query;

    /// <summary>

    /// 电子邮件

    /// </summary>

    public class EmailHelper

    {

        public static readonly string entityName = "email";

        public Guid emailId = Guid.Empty;

        public IOrganizationService service;

        /// <summary>

        /// 创建电子邮件

        /// </summary>

        public void Create()

        {

            Entity en = new Entity();

            en["subject"] = "电子邮件測试";

            en["activityId"] = Guid.NewGuid();

            emailId = service.Create(en);

        }

        /// <summary>

        /// 异步发送电子邮件

        /// </summary>

        /// <param name="query">查询的条件</param>

        public void BackgroundSendEmail(QueryBase query)

        {

            BackgroundSendEmailRequest request = new BackgroundSendEmailRequest();

            request.Query = query;

            BackgroundSendEmailResponse response = (BackgroundSendEmailResponse)service.Execute(request);

            EntityCollection entityCollection = response.EntityCollection;

            bool[] hasAttachments = response.HasAttachments;

        }

        /// <summary>

        /// 检查是否应该将传入电子邮件提升到 Microsoft Dynamics CRM 系统

        /// </summary>

        /// <param name="messageId">消息id</param>

        /// <param name="subject">主题</param>

        public void CheckPromoteEmail(string messageId,string subject)

        {

            CheckPromoteEmailRequest request = new CheckPromoteEmailRequest();

            request.MessageId = messageId;

            request.Subject = subject;

            CheckIncomingEmailResponse response = (CheckIncomingEmailResponse)service.Execute(request);

            int reasonCode = response.ReasonCode;

            bool shouldDeliver = response.ShouldDeliver;

        }

        /// <summary>

        /// 发送批量电子邮件

        /// </summary>

        /// <param name="query">查询的条件</param>

        /// <param name="templateId">模版id</param>

        public void SendBulkMail(QueryBase query,Guid templateId)

        {

            WhoAmIRequest emailSenderRequest = new WhoAmIRequest();

            WhoAmIResponse emailSenderResponse = service.Execute(emailSenderRequest) as WhoAmIResponse;

            SendBulkMailRequest request = new SendBulkMailRequest();

            request.Query = query;

            request.Sender = new EntityReference() { LogicalName = "systemuser", Id = emailSenderResponse.UserId };

            request.RequestId = Guid.Empty;

            request.RegardingType = "systemuser";

            request.TemplateId = templateId;

            SendBulkMailResponse response = (SendBulkMailResponse)service.Execute(request);

        }

        /// <summary>

        /// 使用模板发送电子邮件

        /// </summary>

        /// <param name="userId">发送人。用户id</param>

        /// <param name="contractId">接收人，联系人id</param>

        /// <param name="templateId">模版id</param>

        public void SendEmailFromTemplate(Guid userId, Guid contractId, Guid templateId)

        {

            Entity fromEn = new Entity() { LogicalName = "systemuser",Id = userId };

            Entity toEn = new Entity() { LogicalName = "contract", Id = contractId };

            Entity emailEn = new Entity() { LogicalName = entityName };

            emailEn["from"] = new Entity[] { fromEn };

            emailEn["to"] = new Entity[] { toEn };

            emailEn["subject"] = "电子邮件发送測试";

            emailEn["directioncode"] = true;

            SendEmailFromTemplateRequest request = new SendEmailFromTemplateRequest();

            request.Target = emailEn;

            request.TemplateId = templateId;

            request.RegardingId = contractId;

            request.RegardingType = "contract";

            SendEmailFromTemplateResponse response = (SendEmailFromTemplateResponse)service.Execute(request);

            Guid id = response.Id;

        }

        /// <summary>

        /// 发送电子邮件

        /// </summary>

        public void SendEmail()

        {

            SendEmailRequest request = new SendEmailRequest();

            request.EmailId = emailId;

            request.IssueSend = true;

            request.TrackingToken = "";

            SendEmailResponse response = (SendEmailResponse)service.Execute(request);

            string subject = response.Subject;

        }

        /// <summary>

        /// 获取用于对存储在 Microsoft Dynamics CRM 数据库中的用户或队列的电子邮件凭据进行加密或解密的密钥

        /// </summary>

        public void GetDecryptionKey()

        {

            GetDecryptionKeyRequest request = new GetDecryptionKeyRequest();

            GetDecryptionKeyResponse response = (GetDecryptionKeyResponse)service.Execute(request);

            string key = response.Key;

        }

        /// <summary>

        /// 删除电子邮件

        /// </summary>

        public void Delete()

        {

            service.Delete(entityName, emailId);

        }

    }