using System.Collections.Concurrent;
using System.DirectoryServices;
using DS.Module.Core;
using DS.Module.Core.Data;
using DS.Module.PrintModule;
using DS.WMS.Core.Code.Entity;
using DS.WMS.Core.Op.Dtos.TaskInteraction;
using DS.WMS.Core.Op.Entity;
using DS.WMS.Core.Op.Entity.TaskInteraction;
using DS.WMS.Core.Op.Method.TaskInteraction.ActionExecutor;
using DS.WMS.Core.Op.Method.TaskInteraction.ActionExecutor.Booking;
using DS.WMS.Core.Sys.Entity;
using Fasterflect;
using HtmlAgilityPack;
using Masuit.Tools;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using Newtonsoft.Json;
using RazorEngineCore;

namespace DS.WMS.Core.Op.Method.TaskInteraction
{
    /// <summary>
    /// 业务邮件发送服务
    /// </summary>
    public class MailService : ServiceBase
    {
        static readonly ConcurrentDictionary<int, IRazorEngineCompiledTemplate> TemplateCache =
            new ConcurrentDictionary<int, IRazorEngineCompiledTemplate>();

        IConfiguration config;
        ApiFox Api = DefaultActionExecutor.Api;

        /// <summary>
        /// 初始化
        /// </summary>
        /// <param name="provider"></param>
        public MailService(IServiceProvider provider) : base(provider)
        {
            config = provider.GetRequiredService<IConfiguration>();
            TenantDb.QueryFilter.Clear<IOrgId>();
        }

        static async Task<string> RenderTemplateAsync(string name, string templateText, object model, IRazorEngine? razorEngine = null)
        {
            int hashCode = name.GetHashCode();

            IRazorEngineCompiledTemplate compiledTemplate = TemplateCache.GetOrAdd(hashCode, i =>
            {
                var engine = razorEngine ?? new RazorEngine();
                return engine.Compile(templateText);
            });

            return await compiledTemplate.RunAsync(model);
        }

        /// <summary>
        /// 根据配置发送邮件
        /// </summary>
        /// <param name="mailConfig">邮件配置</param>
        /// <param name="templateModel">模板数据</param>
        /// <returns></returns>
        public async Task<DataResult> SendAsync(BusinessTaskMail mailConfig, MailTemplateModel templateModel)
        {
            ArgumentNullException.ThrowIfNull(mailConfig, nameof(mailConfig));
            ArgumentNullException.ThrowIfNull(templateModel, nameof(templateModel));

            var order = await TenantDb.Queryable<SeaExport>().Where(x => x.Id == templateModel.BusinessId)
                .Select(x => new
                {
                    x.CustomerNo,
                    //
                    x.SaleId,
                    x.OperatorId,
                    x.CustomerService,
                    x.Doc,
                    //
                    x.CarrierId,
                    x.ForwarderId,
                    x.YardId,
                    x.TruckerId,
                    x.CustomerId
                }).FirstAsync();
            if (order == null)
                return DataResult.Failed($"未能获取订单（{templateModel.BusinessId}）数据");

            //设置发件人
            if (mailConfig.Sender == null)
                return DataResult.Failed("未设置发件人");

            long senderId = 0;
            if (mailConfig.Sender.IsSale)
                senderId = order.SaleId;
            else if (mailConfig.Sender.IsOperator)
                senderId = order.OperatorId;
            else if (mailConfig.Sender.IsCustomerService)
                senderId = order.CustomerService;
            else if (mailConfig.Sender.IsVouchingClerk)
                senderId = order.Doc;

            templateModel.Sender = await Db.Queryable<SysUser>().Where(x => x.Id == senderId).Select(x => new MailSender
            {
                DisplayName = x.UserName,
                SignatureHtml = x.SignatureHtml
            }).FirstAsync();
            if (templateModel.Sender == null)
                return DataResult.Failed("邮件模板未设置发件人");

            var senderConfig = await TenantDb.Queryable<CodeUserEmail>().FirstAsync(x => x.CreateBy == senderId);
            if (senderConfig == null)
                return DataResult.Failed($"发件人用户：{templateModel.Sender.DisplayName} 未设置SMTP发件信息");

            List<string> ccList = [];
            if (mailConfig.CC != null)
            {
                //设置抄送人
                List<long> ccIds = [];
                if (mailConfig.CC.IsSale)
                    ccIds.Add(order.SaleId);
                else if (mailConfig.CC.IsOperator)
                    ccIds.Add(order.OperatorId);
                else if (mailConfig.CC.IsCustomerService)
                    ccIds.Add(order.CustomerService);
                else if (mailConfig.CC.IsVouchingClerk)
                    ccIds.Add(order.Doc);

                if (ccIds.Count > 0)
                    ccList = await Db.Queryable<SysUser>().Where(x => ccIds.Contains(x.Id)).Select(x => x.Email).ToListAsync();
            }

            //设置收件人
            if (mailConfig.Receiver == null)
                return DataResult.Failed("邮件模板未设置收件人");

            List<string> receiverTypes = [];
            if (mailConfig.Receiver.IsCarrier)
                receiverTypes.Add("carrier");

            if (mailConfig.Receiver.IsBooking)
                receiverTypes.Add("booking");

            if (mailConfig.Receiver.IsYard)
                receiverTypes.Add("yard");

            if (mailConfig.Receiver.IsTruck)
                receiverTypes.Add("truck");

            if (mailConfig.Receiver.IsController)
                receiverTypes.Add("controller");

            templateModel.Receivers = await TenantDb.Queryable<BusinessOrderContact>().Where(x => receiverTypes.Contains(x.CustomerType)
                && x.Email != null && x.Email != string.Empty && x.BusinessId == templateModel.BusinessId && x.BusinessType == templateModel.BusinessType)
                .Select(x => new MailReceiver { DisplayName = x.Name, MailAddress = x.Email }).ToListAsync();

            string title, content = string.Empty;
            var razorEngine = new RazorEngine();
            try
            {
                string key1 = mailConfig.Id + "-" + nameof(mailConfig.Title);
                title = await RenderTemplateAsync(key1, mailConfig.Title, templateModel, razorEngine);

                string key2 = mailConfig.Id + "-" + nameof(mailConfig.Content);
                content = await RenderTemplateAsync(key2, mailConfig.Content, templateModel, razorEngine);
            }
            catch (Exception ex)
            {
                await ex.LogAsync(Db);
                return DataResult.Failed($"渲染邮件模板（{mailConfig.Id}）时出错，请检查模板是否有语法错误");
            }

            //插入发件人签名
            var htmlDoc = new HtmlDocument();
            htmlDoc.LoadHtml(content);
            var node = htmlDoc.GetElementbyId("sign");
            if (node != null)
                node.InnerHtml = templateModel.Sender.SignatureHtml;

            using (StringWriter writer = new())
            {
                htmlDoc.Save(writer);
                content = writer.ToString();
                writer.Close();
            }

            var attachmentList = mailConfig.Attachments == null ? [] : new List<Tuple<string, string>>(mailConfig.Attachments.Count);
            try
            {
                //生成模板附件
                if (mailConfig.Attachments?.Count > 0)
                {
                    if (Api.DefaultHeaders.Contains("Authorization"))
                        Api.DefaultHeaders.Remove("Authorization");

                    Api.DefaultHeaders.Add("Authorization", "Bearer " + User.GetToken());

                    long tenantId = long.Parse(User.TenantId);
                    string requestUrl = config["TaskMail:FileBaseUrl"] + config["TaskMail:SQLPrint"];
                    foreach (var item in mailConfig.Attachments)
                    {
                        object? obj = PropertyExtensions.GetPropertyValue(templateModel, nameof(MailTemplateModel.Primary), Flags.InstancePublic);
                        var req = new OpenPrintReq
                        {
                            ParamJsonStr = JsonConvert.SerializeObject(obj),
                            PrintType = ((int)FileFormat.PDF).ToString(),
                            TemplateId = item.TemplateId,
                            TenantId = tenantId
                        };
                        var reqResult = await Api.PostAsync<PrintResult>(requestUrl, req);
                        if (!reqResult.Data.Succeeded)
                            return DataResult.Failed($"未能获取打印API生成的文件，请求地址：{requestUrl}");

                        string url = config["TaskMail:FileBaseUrl"] + @"/PrintTempFile/" + reqResult.Data.Data;
                        var fileResult = await Api.SendRequestAsync(HttpMethod.Get, url);
                        if (!fileResult.Succeeded)
                            return DataResult.Failed($"未能获取打印API生成的文件，附件地址：{url}");

                        string fileName = item.FileName.IsNullOrEmpty() ? Path.GetFileName(reqResult.Data.Data) : item.FileName;
                        var byteArray = await fileResult.Data.Content.ReadAsByteArrayAsync();
                        string base64Str = Convert.ToBase64String(byteArray);
                        attachmentList.Add(new Tuple<string, string>(fileName, base64Str));
                    }
                }

                //手工附件
                if (templateModel.FileAttachments?.Count > 0)
                {
                    foreach (var item in templateModel.FileAttachments)
                    {
                        FileInfo file = new FileInfo(item.FilePath);
                        if (!file.Exists)
                            return DataResult.Failed($"参数设置的附件路径：{file.FullName} 不存在");

                        using (var stream = file.OpenRead())
                        {
                            var byteArray = stream.ToArray();
                            string base64Str = Convert.ToBase64String(byteArray);
                            attachmentList.Add(new Tuple<string, string>(item.DisplayName ?? file.Name, base64Str));
                        }
                    }
                }

                string sendTo = string.Join(",", templateModel.Receivers.Select(x => x.MailAddress));
                dynamic[] mailParams = [new
                {
                    SendTo = sendTo,
                    Title = title,
                    Body = content,
                    CCTo = string.Join(",", ccList),
                    ShowName = senderConfig.ShowName.IsNullOrEmpty() ? templateModel.Sender.DisplayName : senderConfig.ShowName,
                    Account = senderConfig.MailAccount,
                    senderConfig.Password,
                    Server = senderConfig.SmtpServer,
                    Port = senderConfig.SmtpPort.GetValueOrDefault(),
                    UseSSL = senderConfig.SmtpSSL.GetValueOrDefault(),
                    Attaches = attachmentList?.Select(x => new
                    {
                        AttachName = x.Item1,
                        AttachContent = x.Item2
                    }).ToList()
                }];
                var mailResult = await Api.SendRequestAsync(HttpMethod.Post, config["TaskMail:MailApiUrl"], mailParams);

                if (mailResult.Data.IsSuccessStatusCode)
                {
                    return DataResult.Successed($"已发邮件（委托单：{order.CustomerNo}），收件人："
                    + string.Join(",", sendTo) + "发件人：" + senderConfig.MailAccount);
                }

                return DataResult.Failed($"邮件发送失败，API返回状态为：{(int)mailResult.Data.StatusCode} {mailResult.Data.StatusCode}"
                    + $"（委托单：{order.CustomerNo}），收件人：" + string.Join(",", sendTo) + "发件人：" + senderConfig.MailAccount);
            }
            catch (Exception ex)
            {
                await ex.LogAsync(Db);
                return DataResult.FailedWithDesc(nameof(MultiLanguageConst.HttpRequestFailed));
            }
        }
    }
}