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

using Fab2ApprovalSystem.DMO;
using Fab2ApprovalSystem.Models;

namespace Fab2ApprovalSystem.Misc;

public class LotTravelerHelper {

    public static string NotifyRejectionToOrginator(AppSettings appSettings, string userId, int workRequestID, string username, List<string> emailIst, LTWorkRequest ltWR) {
        string userEmail = string.Empty;
        string senderName = "Work Request";
        string subject = "Work Request Rejection";
        string emailTemplate = "WorkRequestReject.txt";

        foreach (string email in emailIst) {
            subject = "Work Request Rejection notice for Number " + ltWR.SWRNumber + ", - " + ltWR.Title;
            EmailNotification en = new(appSettings, subject);
            string[] emailparams = new string[5];
            emailparams[0] = ltWR.SWRNumber.ToString();
            emailparams[1] = workRequestID.ToString();
            emailparams[2] = GlobalVars.hostURL;
            emailparams[3] = username;
            emailparams[4] = "Work Request";
            userEmail = email;

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

            } catch {
                EventLogDMO.Add(new WinEventLog() { IssueID = ltWR.SWRNumber, UserID = userId, DocumentType = "Lot Traveler", OperationType = "Error", Comments = "Lot Traveler Notify Rejection:" + email });
            }
        }

        return userEmail;
    }

    public static string NotifyApprovers(AppSettings appSettings, string userId, int workRequestID, string emailSentList, LTWorkRequest ltWR, List<string> emailIst) {
        string senderName = "";
        string userEmail = string.Empty;
        string subject = "Work Request Assignment";
        string emailTemplate = "WorkRequestAssigned.txt";

        foreach (string email in emailIst) {
            subject = "Work Request Assignment notice for Number " + ltWR.SWRNumber + ", - " + ltWR.Title;
            EmailNotification en = new(appSettings, subject);
            string[] emailparams = new string[4];
            emailparams[0] = ltWR.SWRNumber.ToString();
            emailparams[1] = workRequestID.ToString();
            emailparams[2] = GlobalVars.hostURL;
            emailparams[3] = "Work Request";
            userEmail = email;
#if (DEBUG)
            userEmail = "rkotian1@irf.com";
#endif

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

            } catch {
                EventLogDMO.Add(new WinEventLog() { IssueID = ltWR.SWRNumber, UserID = userId, DocumentType = "Lot Traveler", OperationType = "Error", Comments = "WR Notify Approvers:" + email });
            }
        }

        return emailSentList;
    }

    public static string NotifyApprovalOfWorkRequest(AppSettings appSettings, string userId, int workRequestID, string emailSentList, LTWorkRequest ltWR, List<string> emailIst) {
        string senderName = "";
        string userEmail = string.Empty;
        string subject = "Work Request Approval";
        string emailTemplate = "WorkRequestApproval.txt";
        foreach (string email in emailIst) {
            subject = "Work Request Approval notice for Number " + ltWR.SWRNumber + ", - " + ltWR.Title;
            EmailNotification en = new(appSettings, subject);
            string[] emailparams = new string[4];
            emailparams[0] = ltWR.SWRNumber.ToString();
            emailparams[1] = workRequestID.ToString();
            emailparams[2] = GlobalVars.hostURL;
            emailparams[3] = "Work Request";
            userEmail = email;
#if (DEBUG)
            userEmail = "rkotian1@irf.com";
#endif

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

            } catch {
                EventLogDMO.Add(new WinEventLog() { IssueID = ltWR.SWRNumber, UserID = userId, DocumentType = "Lot Traveler", OperationType = "Error", Comments = "Lot Traveler Approval Notification:" + email });
            }
        }

        return emailSentList;
    }

    public static string NotifyfWorkRequestRevisionChange(AppSettings appSettings, string userId, int workRequestID, string emailSentList, LTWorkRequest ltWR, List<string> emailIst) {
        string senderName = "";
        string userEmail = string.Empty;
        string subject = "Work Request Revision Change";
        string emailTemplate = "WorkRequestRevisionChange.txt";

        foreach (string email in emailIst) {
            subject = "Work Request Revision Change notice for Number " + ltWR.SWRNumber + ", - " + ltWR.Title;
            EmailNotification en = new(appSettings, subject);
            string[] emailparams = new string[4];
            emailparams[0] = ltWR.SWRNumber.ToString();
            emailparams[1] = workRequestID.ToString();
            emailparams[2] = GlobalVars.hostURL;
            emailparams[3] = "Work Request";
            userEmail = email;
#if (DEBUG)
            userEmail = "rkotian1@irf.com";
#endif

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

            } catch {
                EventLogDMO.Add(new WinEventLog() { IssueID = ltWR.SWRNumber, UserID = userId, DocumentType = "Lot Traveler", OperationType = "Error", Comments = "WR Revision Change Notification:" + email });
            }
        }

        return emailSentList;
    }

    public static string NotifyLotTravelerRevisionChange(AppSettings appSettings, string userId, string emailSentList, LTLotTravelerHeaderViewModel data, List<string> emailIst) {
        string senderName = "";
        string userEmail = string.Empty;
        string subject = "Lot Traveler Revision Change";
        string emailTemplate = "LotTravelerRevisionChange.txt";

        foreach (string email in emailIst) {
            subject = "Lot Traveler Revision for SWR# " + data.SWRNumber + ", Lot# " + data.LotNumber + " - " + data.Title;
            EmailNotification en = new(appSettings, subject);
            string[] emailparams = new string[4];
            emailparams[0] = data.SWRNumber.ToString();
            emailparams[1] = data.LTWorkRequestID.ToString();
            emailparams[2] = GlobalVars.hostURL;
            emailparams[3] = data.LotNumber;
            userEmail = email;
#if (DEBUG)
            userEmail = "rkotian1@irf.com";
#endif

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

            } catch {
                EventLogDMO.Add(new WinEventLog() { IssueID = data.SWRNumber, UserID = userId, DocumentType = "Lot Traveler", OperationType = "Error", Comments = "Lot Traveler Revision Notification:" + email });
            }
        }

        return emailSentList;
    }

    public static string NotifyLotTravelerCreation(AppSettings appSettings, string userId, string emailSentList, LTLotTravelerHeaderViewModel data, List<string> emailIst) {
        string senderName = "";
        string userEmail = string.Empty;
        string subject = "Lot Traveler Revision Change";
        string emailTemplate = "LotTravelerCreation.txt";

        foreach (string email in emailIst) {
            subject = "Lot Traveler created for SWR# " + data.SWRNumber + ", Lot# " + data.LotNumber + " - " + data.Title;
            EmailNotification en = new(appSettings, subject);
            string[] emailparams = new string[4];
            emailparams[0] = data.SWRNumber.ToString();
            emailparams[1] = data.LTWorkRequestID.ToString();
            emailparams[2] = GlobalVars.hostURL;
            emailparams[3] = data.LotNumber;
            userEmail = email;
#if (DEBUG)
            userEmail = "rkotian1@irf.com";
#endif
            try {
                emailSentList += email + ",";
                en.SendNotificationEmail(emailTemplate, GlobalVars.SENDER_EMAIL, senderName, userEmail, null, subject, emailparams);

            } catch {
                EventLogDMO.Add(new WinEventLog() { IssueID = data.SWRNumber, UserID = userId, DocumentType = "Lot Traveler", OperationType = "Error", Comments = "Lot Traveler Creation Email Notification:" + email });
            }
        }

        return emailSentList;
    }

    public static void ReAssignApproval(AppSettings appSettings, string userId, int workRequestID, string email, LTWorkRequest ltWR) {
        string userEmail = string.Empty;
        string senderName = "Work Request";
        string subject = "Work Request Re-Assignment";
        string emailTemplate = "WorkRequestReAssigned.txt";

        subject = "Work Request Re-Assignment" + " - Email would be sent to " + email + " for Number " + ltWR.SWRNumber + ", - " + ltWR.Title;
        EmailNotification en = new(appSettings, subject);
        string[] emailparams = new string[4];
        emailparams[0] = ltWR.SWRNumber.ToString();
        emailparams[1] = workRequestID.ToString();
        emailparams[2] = GlobalVars.hostURL;
        emailparams[3] = "Work Request";
        userEmail = email;
        try {

            en.SendNotificationEmail(emailTemplate, GlobalVars.SENDER_EMAIL, senderName, userEmail, null, subject, emailparams);
        } catch {
            EventLogDMO.Add(new WinEventLog() { IssueID = ltWR.SWRNumber, UserID = userId, DocumentType = "Lot Traveler", OperationType = "Error", Comments = "ReAssign Approval Notification:" + email });
        }
    }

    public static string AddAdditionalApproval(AppSettings appSettings, string userId, int workRequestID, string emailSentList, string emailArray, LTWorkRequest ltWR) {
        string userEmail = string.Empty;
        string senderName = "Work Request";
        string subject = "Work Request Assignment";
        string emailTemplate = "WorkRequestAssigned.txt";

        string[] emailIst = emailArray.Split(new char[] { '~' });
        foreach (string email in emailIst) {
            if (email.Length > 0) {
                subject = "Work Request Assignment notice for Number " + workRequestID + ", - " + ltWR.Title;
                EmailNotification en = new(appSettings, subject);
                string[] emailparams = new string[4];
                emailparams[0] = ltWR.SWRNumber.ToString();
                emailparams[1] = workRequestID.ToString();
                emailparams[2] = GlobalVars.hostURL;
                emailparams[3] = "Work Request";

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

                } catch {
                    EventLogDMO.Add(new WinEventLog() { IssueID = ltWR.SWRNumber, UserID = userId, DocumentType = "Lot Traveler", OperationType = "Error", Comments = "Addtional Approver Notification:" + email });
                }

            }

        }

        return emailSentList;
    }

    public static void ReAssignApproverByAdmin(AppSettings appSettings, string userId, int workRequestID, string email, LTWorkRequest ltWR) {
        string subject;
        string userEmail = string.Empty;
        string senderName = "Work Request";
        string emailTemplate = "WorkRequestReAssigned.txt";

        subject = "Work Request Re-Assignment" + " - Email would be sent to " + email + " for Number " + ltWR.SWRNumber + ", - " + ltWR.Title;
        EmailNotification en = new(appSettings, subject);
        string[] emailparams = new string[4];
        emailparams[0] = ltWR.SWRNumber.ToString();
        emailparams[1] = workRequestID.ToString(); // goes into the link
        emailparams[2] = GlobalVars.hostURL;
        emailparams[3] = "Work Request";

        userEmail = email;

        try {
            en.SendNotificationEmail(emailTemplate, GlobalVars.SENDER_EMAIL, senderName, userEmail, null, subject, emailparams);
        } catch {
            EventLogDMO.Add(new WinEventLog() { IssueID = ltWR.SWRNumber, UserID = userId, DocumentType = "Lot Traveler", OperationType = "Error", Comments = "ReAssign Approver Notification:" + email });
        }
    }

    public static void HoldStepAttachSave(AppSettings appSettings, LotTravelerDMO lotTravelerDMO, int holdStepID, int swrNo, string docType, string comments, int userId, string fullFileName, Stream stream) {
        // Some browsers send file names with full path.
        // We are only interested in the file name.

        // TODO
        var fileName = Path.GetFileName(fullFileName);
        var fileExtension = Path.GetExtension(fullFileName);
        DirectoryInfo di;
        var SWRPhysicalPath = appSettings.AttachmentFolder + @"LotTraveler\" + swrNo;
        di = new DirectoryInfo(SWRPhysicalPath);
        if (!di.Exists)
            di.Create();

        var SWR_RevPhysicalPath = appSettings.AttachmentFolder + @"LotTraveler\" + swrNo;
        di = new DirectoryInfo(SWR_RevPhysicalPath);
        if (!di.Exists)
            di.Create();

        var guid = Guid.NewGuid().ToString();
        var physicalPath = Path.Combine(appSettings.AttachmentFolder + @"LotTraveler\" + swrNo + @"\", guid + fileExtension);

        using (FileStream fileStream = new(physicalPath, FileMode.Create, FileAccess.Write)) {
            stream.CopyTo(fileStream);
        }
        LTWorkRequestAttachment attach = new() {
            FileGUID = guid,
            LTHoldStepID = holdStepID,
            FileName = fileName,
            UploadedByID = userId,
            DocType = docType,
            Comments = comments
        };

        lotTravelerDMO.InsertLotHoldStepAttachment(attach);
    }

    public static void HoldStepAttachSaveRev(AppSettings appSettings, LotTravelerDMO lotTravelerDMO, int holdStepID, int swrNo, string docType, string comments, bool newRevision, int userId, string fullFileName, Stream stream) {
        // Some browsers send file names with full path.
        // We are only interested in the file name.

        // TODO
        var fileName = Path.GetFileName(fullFileName);
        var fileExtension = Path.GetExtension(fullFileName);
        DirectoryInfo di;
        var SWRPhysicalPath = appSettings.AttachmentFolder + @"LotTraveler\" + swrNo;
        di = new DirectoryInfo(SWRPhysicalPath);
        if (!di.Exists)
            di.Create();

        var SWR_RevPhysicalPath = appSettings.AttachmentFolder + @"LotTraveler\" + swrNo;
        di = new DirectoryInfo(SWR_RevPhysicalPath);
        if (!di.Exists)
            di.Create();

        var guid = Guid.NewGuid().ToString();
        var physicalPath = Path.Combine(appSettings.AttachmentFolder + @"LotTraveler\" + swrNo + @"\", guid + fileExtension);

        using (FileStream fileStream = new(physicalPath, FileMode.Create, FileAccess.Write)) {
            stream.CopyTo(fileStream);
        }
        LTWorkRequestAttachment attach = new() {
            FileGUID = guid,
            LTHoldStepID = holdStepID,
            FileName = fileName,
            UploadedByID = userId,
            DocType = docType,
            Comments = comments
        };
        if (newRevision)
            lotTravelerDMO.InsertLotHoldStepAttachmentRevision(attach);
        else
            lotTravelerDMO.InsertLotHoldStepAttachment(attach);
    }

    public static void AttachSaveWorkRequestRevision(AppSettings appSettings, LotTravelerDMO lotTravelerDMO, int workRequestID, int swrNo, string docType, string attachComments, bool newRevision, int userId, string fullFileName, Stream stream) {
        // Some browsers send file names with full path.
        // We are only interested in the file name.

        // TODO
        var fileName = Path.GetFileName(fullFileName);
        var fileExtension = Path.GetExtension(fullFileName);
        DirectoryInfo di;
        var SWRPhysicalPath = appSettings.AttachmentFolder + @"LotTraveler\" + swrNo;
        di = new DirectoryInfo(SWRPhysicalPath);
        if (!di.Exists)
            di.Create();

        var SWR_RevPhysicalPath = appSettings.AttachmentFolder + @"LotTraveler\" + swrNo;
        di = new DirectoryInfo(SWR_RevPhysicalPath);
        if (!di.Exists)
            di.Create();

        var guid = Guid.NewGuid().ToString();
        var physicalPath = Path.Combine(appSettings.AttachmentFolder + @"LotTraveler\" + swrNo + @"\", guid + fileExtension);

        using (FileStream fileStream = new(physicalPath, FileMode.Create, FileAccess.Write)) {
            stream.CopyTo(fileStream);
        }
        LTWorkRequestAttachment attach = new() {
            WorkRequestID = workRequestID,
            FileGUID = guid,
            LTHoldStepID = -1,
            FileName = fileName,
            UploadedByID = userId,
            DocType = docType,
            Comments = attachComments
        };

        // InsertWorkRequestAttachment(attach);
        if (newRevision)
            lotTravelerDMO.InsertWorkRequestAttachmentRevision(attach);
        else
            lotTravelerDMO.InsertWorkRequestAttachment(attach);
    }

    public static void AttachSaveWorkRequest(AppSettings appSettings, LotTravelerDMO lotTravelerDMO, int workRequestID, int swrNo, string comments, string docType, int userId, string fullFileName, Stream stream) {
        // Some browsers send file names with full path.
        // We are only interested in the file name.

        // TODO
        var fileName = Path.GetFileName(fullFileName);
        var fileExtension = Path.GetExtension(fullFileName);
        DirectoryInfo di;
        var SWRPhysicalPath = appSettings.AttachmentFolder + @"LotTraveler\" + swrNo;
        di = new DirectoryInfo(SWRPhysicalPath);
        if (!di.Exists)
            di.Create();

        var SWR_RevPhysicalPath = appSettings.AttachmentFolder + @"LotTraveler\" + swrNo;
        di = new DirectoryInfo(SWR_RevPhysicalPath);
        if (!di.Exists)
            di.Create();

        var guid = Guid.NewGuid().ToString();
        var physicalPath = Path.Combine(appSettings.AttachmentFolder + @"LotTraveler\" + swrNo + @"\", guid + fileExtension);

        using (FileStream fileStream = new(physicalPath, FileMode.Create, FileAccess.Write)) {
            stream.CopyTo(fileStream);
        }
        LTWorkRequestAttachment attach = new() {
            WorkRequestID = workRequestID,
            FileGUID = guid,
            LTHoldStepID = -1,
            FileName = fileName,
            UploadedByID = userId,
            DocType = docType,
            Comments = comments

        };

        lotTravelerDMO.InsertWorkRequestAttachment(attach);
    }

    public static void LotTravHoldStepAttachSaveRev(AppSettings appSettings, LotTravelerDMO lotTravelerDMO, int ltHoldStepID, int swrNo, string docType, int prevLotTravRevID, int newLotTravRevID, bool newRevision, int userId, string fullFileName, Stream stream) {
        // Some browsers send file names with full path.
        // We are only interested in the file name.

        // TODO
        var fileName = Path.GetFileName(fullFileName);
        var fileExtension = Path.GetExtension(fullFileName);
        DirectoryInfo di;
        var SWRPhysicalPath = appSettings.AttachmentFolder + @"LotTraveler\" + swrNo;
        di = new DirectoryInfo(SWRPhysicalPath);
        if (!di.Exists)
            di.Create();

        var SWR_RevPhysicalPath = appSettings.AttachmentFolder + @"LotTraveler\" + swrNo;
        di = new DirectoryInfo(SWR_RevPhysicalPath);
        if (!di.Exists)
            di.Create();

        var guid = Guid.NewGuid().ToString();
        var physicalPath = Path.Combine(appSettings.AttachmentFolder + @"LotTraveler\" + swrNo + @"\", guid + fileExtension);

        using (FileStream fileStream = new(physicalPath, FileMode.Create, FileAccess.Write)) {
            stream.CopyTo(fileStream);
        }
        LTLotTravAttachment attach = new() {
            FileGUID = guid,
            LTLotTravHoldStepID = ltHoldStepID,
            LotTravelerRevisionID = newLotTravRevID,
            FileName = fileName,
            UploadedByID = userId,
            DocType = docType
        };
        if (newRevision) {
            try {
                lotTravelerDMO.InsertLotTravLotHoldStepAttachmentRevision(attach);
            } catch {
                // roll back the revision creation
                lotTravelerDMO.RestoreLotTravToPrevRevision(prevLotTravRevID, newLotTravRevID);
                throw new Exception("There was a problem while creating the revision, Please logout and log back and then retry. \n If the problem persist please contact the Site Administrator");
            }

        } else
            lotTravelerDMO.InsertLotTravLotHoldStepAttachment(attach);
    }

}