using DSWeb.Common.DB;
using log4net;
using Newtonsoft.Json;
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Web;

namespace DSWeb.Common.Helper
{
    /// <summary>
    /// 发送邮件辅助类
    /// </summary>
    public static class MailHelper
    {
        private static ILog logger = LogManager.GetLogger("MailHelper");

        /// <summary>
        /// 使用随机邮箱发送邮件
        /// </summary>
        /// <param name="title">邮件标题</param>
        /// <param name="body">邮件内容</param>
        /// <param name="sendTo">接收人（多个接收人用英文逗号或分号隔开）</param>
        public static bool SendMail(string title, string body, string sendTo)
        {
            bool succ = false;
            CommonDataContext commonDataContext = new CommonDataContext();

            var smtpList = commonDataContext.MailSendSmtp.AsNoTracking().ToList();
            MailSendSmtp smtp = null;
            if (smtpList.Count > 0)
            {
                Random rnd = new Random();
                int idx = rnd.Next(smtpList.Count);
                smtp = smtpList[idx];
            }

            MailSend mailSend = new MailSend();
            mailSend.SendTo = sendTo;
            mailSend.Title = title;
            mailSend.Body = body;
            if (smtp != null)
            {
                mailSend.SendStatus = MailSend.MailSendStatusCreate;
                mailSend.SmtpConfig = smtp.GID;
                succ = true;
            }
            else
            {
                mailSend.SendStatus = MailSend.MailSendStatusFail;
                logger.Error("没有配置发送邮箱，邮件将不会发送");
            }
            commonDataContext.MailSend.Add(mailSend);
            commonDataContext.SaveChanges();

            return succ;
        }

        /// <summary>
        /// 使用指定的邮箱发送邮件
        /// </summary>
        /// <param name="configId">指定smtp配置的id</param>
        /// <param name="title">邮件标题</param>
        /// <param name="body">邮件内容</param>
        /// <param name="sendTo">接收人（多个接收人用英文逗号或分号隔开）</param>
        /// <param name="showName">显示名称</param>
        /// <param name="sender">自定义发件人（只有小部分邮箱支持）</param>
        public static bool SendMail(string configId, string title, string body, string sendTo, string showName = null, string sender = null)
        {
            bool succ = false;
            CommonDataContext commonDataContext = new CommonDataContext();

            var smtp = commonDataContext.MailSendSmtp.AsNoTracking().FirstOrDefault(c => c.GID == configId);
            MailSend mailSend = new MailSend();
            mailSend.SendTo = sendTo;
            mailSend.Title = title;
            mailSend.Body = body;
            mailSend.ShowName = showName;
            mailSend.Sender = sender;
            if (smtp != null)
            {
                mailSend.SendStatus = MailSend.MailSendStatusCreate;
                mailSend.SmtpConfig = smtp.GID;
                succ = true;
            }
            else
            {
                mailSend.SendStatus = MailSend.MailSendStatusFail;
                logger.Error("没有配置发送邮箱，邮件将不会发送");
            }
            commonDataContext.MailSend.Add(mailSend);
            commonDataContext.SaveChanges();

            return succ;
        }

        /// <summary>
        /// 使用默认发件地址发送邮件
        /// </summary>
        /// <param name="title">邮件标题</param>
        /// <param name="body">邮件内容</param>
        /// <param name="sendTo">接收人（多个接收人用英文逗号或分号隔开）</param>
        /// <returns></returns>
        public static bool SendMailCommon(string title, string body, string sendTo)
        {
            return SendMail("4AB9E4EE-7E62-4E95-9168-F7CF0605E088", title, body, sendTo);
        }

        /// <summary>
        /// 使用马士基发件地址发送邮件
        /// </summary>
        /// <param name="title">邮件标题</param>
        /// <param name="body">邮件内容</param>
        /// <param name="sendTo">接收人（多个接收人用英文逗号或分号隔开）</param>
        /// <returns></returns>
        public static bool SendMailMaersk(string title, string body, string sendTo)
        {
            return SendMail("37F7BF61-41F1-4B77-A1B8-41BAFEDF5AF1", title, body, sendTo);
        }

        /// <summary>
        /// 使用发票转发发件地址发送邮件
        /// </summary>
        /// <param name="title">邮件标题</param>
        /// <param name="body">邮件内容</param>
        /// <param name="sendTo">接收人（多个接收人用英文逗号或分号隔开）</param>
        /// <returns></returns>
        public static bool SendMailInvoice(string title, string body, string sendTo)
        {
            return SendMail("4E07BC66-0E0A-4A97-A3B5-EC6516FAE24A", title, body, sendTo, "大简云发票平台");
        }

        /// <summary>
        /// 发送发票邮件
        /// </summary>
        /// <param name="invId">发票记录Id</param>
        /// <returns></returns>
        //public static bool SendMailInvoiceRecord(string invId)
        //{
        //    return SendMailInvoiceRecordOther(invId, null);
        //}
        /// <summary>
        /// 发送发票邮件
        /// </summary>
        /// <param name="invId">发票记录Id</param>
        /// <param name="email">优先使用参数的邮箱，若参数未null时使用发票记录的邮箱</param>
        /// <returns></returns>
        //public static bool SendMailInvoiceRecordOther(string invId, string email)
        //{
        //    InvoiceDbContext invDB = new InvoiceDbContext();
        //    CommonDataContext comDB = new CommonDataContext();
        //    var inv = invDB.Invoices.AsNoTracking().FirstOrDefault(i => i.GID == invId);
        //    if (inv != null && inv.Status == InvoiceRecord.StatusIssued && (!string.IsNullOrEmpty(email) || !string.IsNullOrEmpty(inv.Email)))
        //    {
        //        var cfg = comDB.ConfigDatas.AsNoTracking().FirstOrDefault(cd => cd.Module == ConfigData.ModuleInvoice && cd.Category == ConfigData.CateMailSubject && cd.UserId == inv.UserId);
        //        var title = "";
        //        if (cfg != null)
        //        {
        //            var subjectArr = JsonConvert.DeserializeObject<string[]>(cfg.JsonData);
        //            #region 标题拼接
        //            string mailTitle = string.Empty;

        //            if (subjectArr.Contains("SalerName"))
        //            {
        //                mailTitle += "销售方：" + inv.SalerName;
        //            }

        //            if (subjectArr.Contains("Total"))
        //            {
        //                if (mailTitle.Length > 0)
        //                {
        //                    mailTitle += "---";
        //                }
        //                mailTitle += "金额：" + inv.Total;
        //            }

        //            if (subjectArr.Contains("InvoiceDate"))
        //            {
        //                if (mailTitle.Length > 0)
        //                {
        //                    mailTitle += "---";
        //                }
        //                mailTitle += "开票日期：" + inv.InvoiceDate.Value.ToString("yyyy年MM月dd日");
        //            }

        //            if (subjectArr.Contains("InvNum"))
        //            {
        //                if (mailTitle.Length > 0)
        //                {
        //                    mailTitle += "---";
        //                }
        //                mailTitle += "发票号码：" + inv.InvNum;
        //            }

        //            if (subjectArr.Contains("InvoiceLine"))
        //            {
        //                if (mailTitle.Length > 0)
        //                {
        //                    mailTitle += "---";
        //                }

        //                switch (inv.InvoiceLine)
        //                {
        //                    case "p":
        //                        mailTitle += "发票种类：普通发票(电票)";
        //                        break;
        //                    case "c":
        //                        mailTitle += "发票种类：普通发票(纸票)";
        //                        break;
        //                    case "s":
        //                        mailTitle += "发票种类：专用发票";
        //                        break;
        //                    case "e":
        //                        mailTitle += "发票种类：收购发票(电票)";
        //                        break;
        //                    case "f":
        //                        mailTitle += "发票种类：收购发票(纸质)";
        //                        break;
        //                }

        //            }

        //            if (subjectArr.Contains("Clerk"))
        //            {
        //                if (mailTitle.Length > 0)
        //                {
        //                    mailTitle += "---";
        //                }
        //                mailTitle += "开票人：" + inv.Clerk;
        //            }

        //            if (subjectArr.Contains("BuyerName"))
        //            {
        //                if (mailTitle.Length > 0)
        //                {
        //                    mailTitle += "---";
        //                }
        //                mailTitle += "购货方名称：" + inv.BuyerName;
        //            }
        //            #endregion

        //            title = $"您收到一张电子发票：{mailTitle}";
        //        }
        //        else
        //        {
        //            title = $"您收到一张电子发票：销售方：{inv.SalerName}---金额：{inv.Total}---开票日期：{inv.InvoiceDate.Value.ToString("yyyy年MM月dd日")}";
        //        }

        //        //读取html模板，填充数据
        //        var htmlFile = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "Areas/Invoice/Content/InvoiceMailTemplate.html");
        //        var content = File.ReadAllText(htmlFile);
        //        content = content.Replace("$VIEW_URL$", inv.PictureUrl);
        //        content = content.Replace("$CUST_NAME$", inv.BuyerName);
        //        content = content.Replace("$INV_DATA$", inv.InvoiceDate.Value.ToString("yyyy年MM月dd日"));
        //        content = content.Replace("$TOTAL$", inv.Total.ToString());
        //        content = content.Replace("$INV_NUM$", inv.InvNum);
        //        content = content.Replace("$INV_CODE$", inv.InvCode);
        //        content = content.Replace("$PDF_URL$", inv.PdfUrl);

        //        SendMailInvoice(title, content, string.IsNullOrEmpty(email) ? inv.Email : email);
        //        return true;
        //    }

        //    return false;
        //}

        /// <summary>
        /// 发送邮件-运踪
        /// </summary>
        /// <param name="title">邮件标题</param>
        /// <param name="body">邮件内容</param>
        /// <param name="sendTo">接收人（多个接收人用英文逗号或分号隔开）</param>
        /// <param name="showName">发件人显示名称</param>
        /// <param name="sender">发件人显示邮箱地址（部分邮箱支持）</param>
        /// <returns></returns>
        public static bool SendMailBillTrace(string title, string body, string sendTo, string showName = null, string sender = null)
        {
            return SendMail("F48AA7593827456BB0DC12D4D8D13976", title, body, sendTo, showName, sender);
        }

    }
}