Imports DigitalData.Modules.Base
Imports DigitalData.Modules.Logging

Public Class EmailTemplate
    Private _DocumentReceivedBodyTemplate As List(Of String)
    Private _DocumentSignedBodyTemplate As List(Of String)
    Private _DocumentCompletedBodyTemplate As List(Of String)
    Private _DocumentDeletedBodyTemplate As List(Of String)
    Private _DocumentAccessCodeReceivedBodyTemplate As List(Of String)

    Private _DocumentReceivedSubjectTemplate As String
    Private _DocumentSignedSubjectTemplate As String
    Private _DocumentDeletedSubjectTemplate As String
    Private _DocumentCompletedSubjectTemplate As String
    Private _DocumentAccessCodeReceivedSubjectTemplate As String

    Private _replaceDictionary As Dictionary(Of String, String)

    Private ReadOnly DbConfig As DbConfig
    Private ReadOnly LogConfig As LogConfig
    Private ReadOnly Logger As Logger

    Public Sub New(pState As State)
        InitBodyTemplates()
        InitSubjectTemplates()

        DbConfig = pState.DbConfig
        LogConfig = pState.LogConfig
        Logger = LogConfig.GetLogger()
    End Sub

    Private Sub InitSubjectTemplates()
        _DocumentReceivedSubjectTemplate = "Dokument erhalten: '[DOCUMENT_TITLE]'"
        _DocumentSignedSubjectTemplate = "Dokument unterschrieben: '[DOCUMENT_TITLE]'"
        _DocumentDeletedSubjectTemplate = "Vorgang zurückgezogen: '[DOCUMENT_TITLE]'"
        _DocumentCompletedSubjectTemplate = "Vorgang abgeschlossen: '[DOCUMENT_TITLE]'"
        _DocumentAccessCodeReceivedSubjectTemplate = "Zugriffscode für Dokument erhalten: '[DOCUMENT_TITLE]'"

    End Sub

    Private Sub InitBodyTemplates()
        _DocumentReceivedBodyTemplate = New List(Of String) From {
            "Guten Tag [NAME_RECEIVER],",
            "",
            "[NAME_SENDER] hat Ihnen ein Dokument zum [SIGNATURE_TYPE] gesendet.",
            "",
            "Über den folgenden Link können Sie das Dokument einsehen: <a href=""[LINK_TO_DOCUMENT]"">[LINK_TO_DOCUMENT_TEXT]</a>",
            "",
            "[MESSAGE]",
            "",
            "Mit freundlichen Grüßen",
            "[NAME_PORTAL]"
        }

        '_DocumentReceivedBodyTemplate = Common.My.Resources.email_de.Split(vbNewLine).ToList()
        '_DocumentAccessCodeReceivedBodyTemplate = Common.My.Resources.

        _DocumentSignedBodyTemplate = New List(Of String) From {
            "Guten Tag [NAME_RECEIVER]",
            "",
            "hiermit bestätigen wir Ihnen die erfolgreiche Signatur für den Vorgang '[DOCUMENT_TITLE]'.",
            "",
            "Mit freundlichen Grüßen",
            "[NAME_PORTAL]"
        }

        _DocumentDeletedBodyTemplate = New List(Of String) From {
            "Guten Tag [NAME_RECEIVER]",
            "",
            "Der User [NAME_SENDER] hat den Umschlag '[DOCUMENT_TITLE]' gelöscht.",
            "",
            "Mit freundlichen Grüßen",
            "[NAME_PORTAL]"
        }

        _DocumentCompletedBodyTemplate = New List(Of String) From {
            "Guten Tag [NAME_RECEIVER]",
            "",
            "Der Signaturvorgang '[DOCUMENT_TITLE]' wurde erfolgreich abgeschlossen.",
            "Sie erhalten das Dokument mit einem detaillierten Ergebnisbericht als Anhang zu dieser Email.",
            "",
            "Vielen Dank für die Nutzung von",
            "[NAME_PORTAL]"
        }

        _DocumentAccessCodeReceivedBodyTemplate = New List(Of String) From {
            "Guten Tag [NAME_RECEIVER]",
            "",
            "[NAME_SENDER] hat Ihnen ein Dokument zum [SIGNATURE_TYPE] gesendet. ",
            "Verwenden Sie den folgenden Zugriffscode, um das Dokument einzusehen:",
            "",
            "[DOCUMENT_ACCESS_CODE]",
            "",
            "Vielen Dank für die Nutzung von",
            "[NAME_PORTAL]"
        }
    End Sub

    Private Sub InitDictionary(pEmailData As EmailData)
        Logger.Debug("Initializing dictionary..")

        _replaceDictionary = New Dictionary(Of String, String) From {
            {"[NAME_RECEIVER]", pEmailData.ReceiverName},
            {"[NAME_SENDER]", pEmailData.SenderName},
            {"[NAME_PORTAL]", DbConfig.ExternalProgramName},
            {"[SIGNATURE_TYPE]", "signieren"},
            {"[LINK_TO_DOCUMENT]", pEmailData.SignatureLink},
            {"[LINK_TO_DOCUMENT_TEXT]", $"{pEmailData.SignatureLink.Truncate(40)}.."},
            {"[DOCUMENT_TITLE]", pEmailData.EnvelopeTitle},
            {"[MESSAGE]", pEmailData.Message},
            {"[DOCUMENT_ACCESS_CODE]", pEmailData.ReceiverAccessCode}
        }
    End Sub

    Public Sub FillDocumentReceivedEmailBody(pEmailData As EmailData)
        FillEmailBody(pEmailData, _DocumentReceivedBodyTemplate)
        FillEmailSubject(pEmailData, _DocumentReceivedSubjectTemplate)
    End Sub

    Public Sub FillEnvelopeDeletedEmailBody(pEmailData As EmailData)
        FillEmailBody(pEmailData, _DocumentDeletedBodyTemplate)
        FillEmailSubject(pEmailData, _DocumentDeletedSubjectTemplate)
    End Sub

    Public Sub FillDocumentSignedEmailBody(pEmailData As EmailData)
        FillEmailBody(pEmailData, _DocumentSignedBodyTemplate)
        FillEmailSubject(pEmailData, _DocumentSignedSubjectTemplate)
    End Sub

    Public Sub FillDocumentCompletedEmailBody(pEmailData As EmailData)
        FillEmailBody(pEmailData, _DocumentCompletedBodyTemplate)
        FillEmailSubject(pEmailData, _DocumentCompletedSubjectTemplate)
    End Sub

    Public Sub FillDocumentAccessCodeReceivedEmailBody(pEmailData As EmailData)
        FillEmailBody(pEmailData, _DocumentAccessCodeReceivedBodyTemplate)
        FillEmailSubject(pEmailData, _DocumentAccessCodeReceivedSubjectTemplate)
    End Sub

    Private Sub FillEmailSubject(pEmailData As EmailData, pTemplate As String)
        InitDictionary(pEmailData)

        Dim oSubject As String = pTemplate

        For Each dictItem As KeyValuePair(Of String, String) In _replaceDictionary
            If oSubject.Contains(dictItem.Key) Then
                oSubject = oSubject.Replace(dictItem.Key, dictItem.Value)

            End If
        Next

        pEmailData.EmailSubject = oSubject
    End Sub

    Private Sub FillEmailBody(pEmailData As EmailData, pTemplate As List(Of String))
        InitDictionary(pEmailData)

        Dim oBody As String = ""

        For Each lineItem As String In pTemplate
            Dim oLineValue As String = lineItem
            For Each dictItem As KeyValuePair(Of String, String) In _replaceDictionary
                If oLineValue.Contains(dictItem.Key) Then
                    oLineValue = oLineValue.Replace(dictItem.Key, dictItem.Value)

                End If
            Next
            oBody += oLineValue + "<br/>"
        Next

        pEmailData.EmailBody = oBody
    End Sub
End Class