using System;
using System.Collections.Generic;
using System.IO;

using Fab2ApprovalSystem.DMO;
using Fab2ApprovalSystem.Models;

namespace Fab2ApprovalSystem.Misc;

public class LotDispositionHelper {

    public static string NotifyRejectionToOrginator(AppSettings appSettings, int issueID, string username, List<string> emailIst) {
        string userEmail = string.Empty;
        string senderName = "LotDisposition";
        string subject = "Lot Disposition Rejection";
        string emailTemplate = "LotDispositionReject.txt";

        foreach (string email in emailIst) {
            subject = "Lot Disposition Rejection";
            EmailNotification en = new(appSettings, subject);
            string[] emailparams = new string[4];
            emailparams[0] = issueID.ToString();
            emailparams[1] = issueID.ToString();
            emailparams[2] = GlobalVars.hostURL;
            emailparams[3] = username;
            userEmail = email;

            en.SendNotificationEmail(emailTemplate, GlobalVars.SENDER_EMAIL, senderName, userEmail, null, subject, emailparams);
        }

        return userEmail;
    }

    public static string NotifyApprovers(AppSettings appSettings, int issueID, List<string> emailIst) {
        string emailSentList = "";
        string userEmail = string.Empty;
        string senderName = "LotDisposition";
        string subject = "Lot Disposition Assignment";
        string emailTemplate = "LotDispositionAssigned.txt";

        foreach (string email in emailIst) {
            subject = "Lot Disposition Assignment";
            EmailNotification en = new(appSettings, subject);
            string[] emailparams = new string[3];
            emailparams[0] = issueID.ToString();
            emailparams[1] = issueID.ToString();
            emailparams[2] = GlobalVars.hostURL;
            userEmail = email;

            en.SendNotificationEmail(emailTemplate, GlobalVars.SENDER_EMAIL, senderName, userEmail, null, subject, emailparams);
            emailSentList += email + ",";
        }

        return emailSentList;
    }

    public static string AddAdditionalApproval(AppSettings appSettings, int issueID, string emailSentList, string emailArray) {
        string userEmail = string.Empty;
        string senderName = "LotDisposition";
        string subject = "Lot Disposition Assignment";
        string emailTemplate = "LotDispositionAssigned.txt";

        string[] emailIst = emailArray.Split(new char[] { '~' });
        foreach (string email in emailIst) {
            if (email.Length > 0) {
                subject = "Lot Disposition Assignment";
                EmailNotification en = new(appSettings, subject);
                string[] emailparams = new string[3];
                emailparams[0] = issueID.ToString();
                emailparams[1] = issueID.ToString();
                emailparams[2] = GlobalVars.hostURL;
                userEmail = email;

                en.SendNotificationEmail(emailTemplate, GlobalVars.SENDER_EMAIL, senderName, userEmail, null, subject, emailparams);
                emailSentList += email + ",";

            }

        }

        return emailSentList;
    }

    public static void ReAssignApproverByAdmin(AppSettings appSettings, int issueID, string email) {
        string userEmail = string.Empty;
        string senderName = "LotDisposition";
        string subject = "Lot Disposition Re-Assignment";
        string emailTemplate = "LotDispositionReAssigned.txt";

        subject = "Lot Disposition Re-Assignment" + " - Email would be sent to " + email;
        EmailNotification en = new(appSettings, subject);
        string[] emailparams = new string[3];
        emailparams[0] = issueID.ToString();
        emailparams[1] = issueID.ToString();
        emailparams[2] = GlobalVars.hostURL;
        userEmail = email;
        en.SendNotificationEmail(emailTemplate, GlobalVars.SENDER_EMAIL, senderName, userEmail, null, subject, emailparams);
    }

    public static void ReAssignApproval(AppSettings appSettings, int issueID, string email) {
        string userEmail = string.Empty;
        string senderName = "LotDisposition";
        string subject = "Lot Disposition Re-Assignment";
        string emailTemplate = "LotDispositionReAssigned.txt";

        subject = "Lot Disposition Re-Assignment" + " - Email would be sent to " + email;
        EmailNotification en = new(appSettings, subject);
        string[] emailparams = new string[3];
        emailparams[0] = issueID.ToString();
        emailparams[1] = issueID.ToString();
        emailparams[2] = GlobalVars.hostURL;
        userEmail = email;

        en.SendNotificationEmail(emailTemplate, GlobalVars.SENDER_EMAIL, senderName, userEmail, null, subject, emailparams);
    }

    public static void AttachSave(AppSettings appSettings, LotDispositionDMO lotDispositionDMO, int issueID, int userId, string fullFileName, Stream stream) {
        // Some browsers send file names with full path.
        // We are only interested in the file name.
        string fileName = Path.GetFileName(fullFileName);
        string physicalPath = Path.Combine(appSettings.AttachmentFolder + "LotDisposition", fileName);

        using (FileStream fileStream = new(physicalPath, FileMode.Create, FileAccess.Write)) {
            stream.CopyTo(fileStream);
        }
        Attachment attach = new() {
            IssueID = issueID,
            FileName = fileName,
            UserID = userId,
        };
        lotDispositionDMO.InsertLotDispositionAttachment(attach);
    }

    public static string ExcelLotOpen(LotDispositionDMO lotDispositionDMO, int issueID, string userIdentityName, string lotTempPipeLine, string fullFileName, Stream stream) {
        string physicalPath;

        string fileExtension = Path.GetExtension(fullFileName);
        string fName = userIdentityName + DateTime.Now.Hour.ToString() + DateTime.Now.Minute.ToString() + DateTime.Now.Second.ToString();

        physicalPath = Path.Combine(lotTempPipeLine, fName + "." + fileExtension);
        using (FileStream fileStream = new(physicalPath, FileMode.Create, FileAccess.Write)) {
            stream.CopyTo(fileStream);
        }

        ExcelData x = new (physicalPath);
        IEnumerable<ExcelData.ExcelLotInfo> lotNumbers = x.ReadData();

        foreach (ExcelData.ExcelLotInfo lotInfo in lotNumbers) {
            Lot l = new();
            l.LotNumber = lotInfo.LotNo ?? string.Empty;
            l.IssueID = issueID;
            if (l.LotStatusOptionID == 0)
                l.LotStatusOption.LotStatusOptionID = (int)GlobalVars.LotStatusOption.Release;

            lotDispositionDMO.InsertLot(l, true);
        }

        FileInfo f = new(physicalPath);
        if (f.Exists)
            f.Delete();

        return physicalPath;
    }

}