using System;
using System.Collections.Generic;
using System.Web;
using System.Web.Security;
using System.Web.SessionState;
using System.Configuration;
using System.Net;
using System.Net.Security;
using System.Security.Cryptography.X509Certificates;
using System.Web.Configuration;
using WEB;
using WebLib;

namespace Education
{
    public class Global : System.Web.HttpApplication
    {
        protected void Application_Start(object sender, EventArgs e)
        {
            StringTable.Insert = false;
            StringTable.ByPass = true;

            #region 讀進 Web.Config 中的系統參數

            if (ConfigurationManager.AppSettings["ConnectionString"] != null)
                PublicVariable.ConnectionString = ConfigurationManager.ConnectionStrings[ConfigurationManager.AppSettings["ConnectionString"]].ConnectionString;
            else
                PublicVariable.ConnectionString = ConfigurationManager.ConnectionStrings["ConnectionString"].ConnectionString;

            DAC.ConnectionString = DAC.connTypeMSSQL;
            DAC.ConnectionString = PublicVariable.ConnectionString;

            if (ConfigurationManager.AppSettings["UserLanguage"] != null)
                PublicVariable.UserLanguage = ConfigurationManager.AppSettings["UserLanguage"];

            if (ConfigurationManager.AppSettings["CompanyName"] != null)
                PublicVariable.CompanyName = ConfigurationManager.AppSettings["CompanyName"];

            if (ConfigurationManager.AppSettings["CopyrightText"] != null)
                PublicVariable.CopyrightText = ConfigurationManager.AppSettings["CopyrightText"];

            if (ConfigurationManager.AppSettings["Theme"] != null)
                PublicVariable.Theme = ConfigurationManager.AppSettings["Theme"].ToLower();

            if (ConfigurationManager.AppSettings["SystemName"] != null)
                PublicVariable.SystemName = ConfigurationManager.AppSettings["SystemName"].ToLower();

            if (ConfigurationManager.AppSettings["NoLoginFunction"] != null)
                PublicVariable.NoLoginFunction = Convert.ToBoolean(ConfigurationManager.AppSettings["NoLoginFunction"].ToLower());

            if (ConfigurationManager.AppSettings["總管理處ID"] != null)
                PublicVariable.總管理處ID = DAC.GetInt32(ConfigurationManager.AppSettings["總管理處ID"]);

            if (ConfigurationManager.AppSettings["人資部ID"] != null)
                PublicVariable.人資部ID = DAC.GetInt32(ConfigurationManager.AppSettings["人資部ID"]);

            if (ConfigurationManager.AppSettings["財務部ID"] != null)
                PublicVariable.財務部ID = DAC.GetInt32(ConfigurationManager.AppSettings["財務部ID"]);

            #region 發郵件設定
            if (ConfigurationManager.AppSettings["SendMailBySSL"] != null)
                PublicVariable.SendMailBySSL = Convert.ToBoolean(ConfigurationManager.AppSettings["SendMailBySSL"].ToLower());

            if (ConfigurationManager.AppSettings["SendMailHost"] != null)
                PublicVariable.SendMailHost = ConfigurationManager.AppSettings["SendMailHost"];

            if (ConfigurationManager.AppSettings["SendMailPort"] != null)
                PublicVariable.SendMailPort = Convert.ToInt32(ConfigurationManager.AppSettings["SendMailPort"]);

            if (ConfigurationManager.AppSettings["SendMailUserName"] != null)
                PublicVariable.SendMailUserName = ConfigurationManager.AppSettings["SendMailUserName"];

            if (ConfigurationManager.AppSettings["SendMailPassword"] != null)
                PublicVariable.SendMailPassword = ConfigurationManager.AppSettings["SendMailPassword"];
            #endregion

            #region 滿意度調查催填設定
            if (ConfigurationManager.AppSettings[PublicVariable.SurveyReminderDeadlineDaysKey] != null)
                PublicVariable.SurveyReminderDeadlineDays = Convert.ToInt32(ConfigurationManager.AppSettings[PublicVariable.SurveyReminderDeadlineDaysKey]);
            if (ConfigurationManager.AppSettings[PublicVariable.SurveyReminderExcludeEmployeesKey] != null)
                PublicVariable.SurveyReminderExcludeEmployees = ConfigurationManager.AppSettings[PublicVariable.SurveyReminderExcludeEmployeesKey];
            if (ConfigurationManager.AppSettings[PublicVariable.SurveyReminderMinCourseDateKey] != null)
                PublicVariable.SurveyReminderMinCourseDate = Convert.ToDateTime(ConfigurationManager.AppSettings[PublicVariable.SurveyReminderMinCourseDateKey]);
            if (ConfigurationManager.AppSettings[PublicVariable.SiteBaseUrlKey] != null)
                PublicVariable.SiteBaseUrl = ConfigurationManager.AppSettings[PublicVariable.SiteBaseUrlKey];
            #endregion

            #region 設定相關服務的參數
            LookupList.LookupConfigCache = false;
            LookupList.LookupConfigFile = Server.MapPath("~/Config/LookupConfig.xml");

            MailService.Host = PublicVariable.SendMailHost;
            MailService.Port = PublicVariable.SendMailPort;
            MailService.UserName = PublicVariable.SendMailUserName;
            MailService.Password = PublicVariable.SendMailPassword;
            MailService.UseSSL = PublicVariable.SendMailBySSL;
            MailService.LogPath = Server.MapPath("~/Log");
            MailService.UseDbAsQueue = true;
            MailService.Enabled = true;

            DeleteFileService.DeletePatterns.Add(Server.MapPath("~/ReportData") + "/*.mdb");
            DeleteFileService.Enabled = true;

            // 簽核跟催郵件
            FollowService.TemplatePath = Server.MapPath("~/Template");
            FollowService.DoWorkTime = "00:00";
            FollowService.Enabled = true;
            #endregion

            #region 設定 DEBUG 模式
            CompilationSection section = ConfigurationManager.GetSection("system.web/compilation") as CompilationSection;
            PublicVariable.DEBUG = section.Debug;
            #endregion

            #endregion
        }

        protected void Session_Start(object sender, EventArgs e)
        {

        }

        protected void Application_BeginRequest(object sender, EventArgs e)
        {
            HttpRuntimeSection section = (HttpRuntimeSection)ConfigurationManager.GetSection("system.web/httpRuntime");
            int maxFileSize = section.MaxRequestLength * 1024;
            if (Request.ContentLength > maxFileSize)
            {
                Server.ClearError();
                Response.Redirect("~/Forms/Common/FileTooLarge.aspx");
            }
        }

        protected void Application_AuthenticateRequest(object sender, EventArgs e)
        {

        }

        private string Message1 = @"錯誤網頁：{0}
錯誤類別：{1}
錯誤來源：{2}
錯誤訊息：{3}
堆疊內容：
{4}

";

        private string Message2 = @"以上的錯誤發生的原因是：
錯誤類別：{0}
錯誤來源：{1}
錯誤訊息：{2}
堆疊內容：
{3}

";
        protected void Application_Error(object sender, EventArgs e)
        {
            // 發生未處理錯誤時執行的程式碼
            string Message = "";
            Exception ex = Server.GetLastError();

            if (ex == null)
            {
                Server.ClearError();
                return;
            }

            // 如果是 404，重導到 404 頁面
            if (ex is HttpException httpException && httpException.GetHttpCode() == 404)
            {
                Server.ClearError();
                Response.Redirect("~/Forms/404.aspx");
                return;
            }

            Message += String.Format(Message1,
              Request.Path,
              ex.GetType().FullName,
              ex.Source,
              ex.Message,
              ex.StackTrace);

            ex = ex.InnerException;
            while (ex != null)
            {
                Message += String.Format(Message2,
                  ex.GetType().FullName,
                  ex.Source,
                  ex.Message,
                  ex.StackTrace);
                ex = ex.InnerException;
            }

            //寫入文字檔
            string fileName = DateTime.UtcNow.AddHours(8).ToString("yyyyMMdd_HHmmss");
            System.IO.File.AppendAllText(Server.MapPath(string.Format(@"~/Log/{0}.txt", fileName)), Message);

            //清除Error
            Server.ClearError();

            Response.Redirect(String.Format("~/Forms/500.aspx?errcode={0}", fileName));
        }

        protected void Session_End(object sender, EventArgs e)
        {

        }

        protected void Application_End(object sender, EventArgs e)
        {

        }
    }
}