Merge branch 'newMaster2024' of https://git.it.verag.ag/edv/SDL into newMaster2024

VERAG_PROG_ALLGEMEIN/Schnittstellen/ATEZ/GREENPULSE/cATEZ_Greenpulse_CBAM_CostCalculation.vb

@@ -1,7 +1,7 @@
 ' ============================================================================
 '  GreenPulse – CBAM Carbon Cost API
 '  Single-file VB.NET implementation using Chilkat
-'  Adapted to latest Postman Collection (country_code, benchmark_value)
+'  Adapted to Postman Collection 29.12.2025
 ' ============================================================================
 
 Imports Chilkat
@@ -26,41 +26,80 @@ Public Class cATEZ_Greenpulse_CBAM_CostCalculation
     ' ------------------------------------------------------------------------
     Public Function GetCnCodes() As cCBAM_CnCode_Response
 
-        Dim url As String = _baseUrl & "/carbon-cost/cn-codes"
-        Dim resp As HttpResponse = _http.QuickGetObj(url)
-
-        If resp Is Nothing Then
-            Throw New Exception(_http.LastErrorText)
-        End If
+        Dim resp = _http.QuickGetObj(_baseUrl & "/carbon-cost/cn-codes")
+        If resp Is Nothing Then Throw New Exception(_http.LastErrorText)
 
         Dim json As New JsonObject()
         json.Load(resp.BodyStr)
 
-        Dim result As New cCBAM_CnCode_Response With {
-            .success = json.BoolOf("success")
-        }
+        Dim r As New cCBAM_CnCode_Response With {.success = json.BoolOf("success")}
 
-        If result.success Then
-            result.data = New List(Of cCBAM_CnCode)
-            Dim arr = json.ArrayOf("data")
-
-            For i As Integer = 0 To arr.Size - 1
-                Dim o = arr.ObjectAt(i)
-                result.data.Add(New cCBAM_CnCode With {
+        If r.success Then
+            r.data = New List(Of cCBAM_CnCode)
+            Dim a = json.ArrayOf("data")
+            For i = 0 To a.Size - 1
+                Dim o = a.ObjectAt(i)
+                r.data.Add(New cCBAM_CnCode With {
                     .cn_code = o.StringOf("cn_code"),
                     .cn_description = o.StringOf("cn_description")
                 })
             Next
         Else
-            Dim e = json.ObjectOf("error")
-            result.error = New cCBAM_Error With {
-                .code = e.StringOf("code"),
-                .message = e.StringOf("message"),
-                .statusCode = e.IntOf("statusCode")
-            }
+            r.error = ParseError(json)
         End If
 
-        Return result
+        Return r
+    End Function
+
+    ' ------------------------------------------------------------------------
+    ' GET /carbon-cost/cn-code-defaults
+    ' ------------------------------------------------------------------------
+    Public Function GetCnCodeDefaults(
+        cn_code As String,
+        country_code As String,
+        Optional year As Integer? = Nothing
+    ) As cCBAM_CnCodeDefaults_Response
+
+        Dim url = $"{_baseUrl}/carbon-cost/cn-code-defaults?cn_code={cn_code}&country_code={country_code}"
+        If year.HasValue Then url &= $"&year={year.Value}"
+
+        Console.WriteLine($"[GetCnCodeDefaults] Request URL: {url}")
+
+        Dim resp = _http.QuickGetObj(url)
+        If resp Is Nothing Then
+            Console.WriteLine("[GetCnCodeDefaults] HTTP request failed: " & _http.LastErrorText)
+            Throw New Exception(_http.LastErrorText)
+        End If
+
+        Console.WriteLine("[GetCnCodeDefaults] HTTP response received.")
+        If resp.BodyStr IsNot Nothing Then
+            Console.WriteLine("[GetCnCodeDefaults] Response body length: " & resp.BodyStr.Length)
+            Console.WriteLine("[GetCnCodeDefaults] Body: " & resp.BodyStr)
+        Else
+            Console.WriteLine("[GetCnCodeDefaults] Response body is empty.")
+        End If
+
+        Dim json As New JsonObject()
+        json.Load(resp.BodyStr)
+
+        Dim successFlag = json.BoolOf("success")
+        Console.WriteLine($"[GetCnCodeDefaults] JSON 'success' flag: {successFlag}")
+
+        Dim r As New cCBAM_CnCodeDefaults_Response With {.success = successFlag}
+
+        If r.success Then
+            Dim d = json.ObjectOf("data")
+            r.data = New cCBAM_CnCodeDefaults With {
+                .default_emission = GetDec(d, "default_emission"),
+                .benchmark = GetNullableDec(d, "benchmark")
+            }
+            Console.WriteLine($"[GetCnCodeDefaults] Parsed defaults: default_emission={r.data.default_emission}, benchmark={(If(r.data.benchmark.HasValue, r.data.benchmark.Value.ToString(), "null"))}")
+        Else
+            r.error = ParseError(json)
+            Console.WriteLine($"[GetCnCodeDefaults] API error: code={r.error.code}, message={r.error.message}, statusCode={r.error.statusCode}")
+        End If
+
+        Return r
     End Function
 
     ' ------------------------------------------------------------------------
@@ -71,76 +110,21 @@ Public Class cATEZ_Greenpulse_CBAM_CostCalculation
 
         VERAG_PROG_ALLGEMEIN.cChilkat_Helper.UnlockCilkat()
 
-        Dim url As String = _baseUrl & "/carbon-cost/calculate"
-        Dim resp As HttpResponse = _http.PostJson2(url, "application/json", req.ToJson())
+        Dim resp = _http.PostJson2(
+            _baseUrl & "/carbon-cost/calculate",
+            "application/json",
+            req.ToJson()
+        )
 
-        If resp Is Nothing Then
-            Throw New Exception(_http.LastErrorText)
-        End If
-
-        Return ParseResponse(resp.BodyStr)
+        If resp Is Nothing Then Throw New Exception(_http.LastErrorText)
+        Return ParseCalcResponse(resp.BodyStr)
     End Function
 
     ' ------------------------------------------------------------------------
-    ' JSON → Object mapping
+    ' calcCBAM – Convenience Wrapper
     ' ------------------------------------------------------------------------
-    Private Function ParseResponse(jsonStr As String) _
-        As cCBAM_CostCalculation_Response
-
-        Dim json As New JsonObject()
-        json.Load(jsonStr)
-
-        Dim result As New cCBAM_CostCalculation_Response With {
-            .success = json.BoolOf("success")
-        }
-
-        If result.success Then
-            Dim d = json.ObjectOf("data")
-
-            result.data = New cCBAM_CostCalculation_Data With {
-                .cost = GetDec(d, "cost"),
-                .cbam_emission = GetDec(d, "cbam_emission"),
-                .benchmark = GetDec(d, "benchmark"),
-                .phase_factor = GetDec(d, "phase_factor"),
-                .carbon_price = GetDec(d, "carbon_price"),
-                .currency = d.StringOf("currency")
-            }
-
-            Dim det = d.ObjectOf("calculation_details")
-            result.data.calculation_details = New cCBAM_CostCalculation_Details With {
-                .cbam_emission = GetDec(det, "cbam_emission"),
-                .benchmark = GetDec(det, "benchmark"),
-                .adjusted_benchmark = GetDec(det, "adjusted_benchmark"),
-                .emission_difference = GetDec(det, "emission_difference"),
-                .weight = GetDec(det, "weight"),
-                .carbon_price = GetDec(det, "carbon_price")
-            }
-        Else
-            Dim e = json.ObjectOf("error")
-            result.error = New cCBAM_Error With {
-                .code = e.StringOf("code"),
-                .message = e.StringOf("message"),
-                .statusCode = e.IntOf("statusCode")
-            }
-        End If
-
-        Return result
-    End Function
-
     ' ------------------------------------------------------------------------
-    ' Robust Decimal Parsing (Chilkat-safe)
-    ' ------------------------------------------------------------------------
-    Private Shared Function GetDec(obj As JsonObject, name As String) As Decimal
-        Dim s As String = obj.StringOf(name)
-        If String.IsNullOrWhiteSpace(s) Then Return 0D
-        s = s.Replace(",", ".")
-        Dim v As Decimal
-        If Decimal.TryParse(s, NumberStyles.Any, CultureInfo.InvariantCulture, v) Then Return v
-        Return 0D
-    End Function
-
-    ' ------------------------------------------------------------------------
-    ' Convenience Wrapper für einfache CBAM-Kalkulation
+    ' calcCBAM – mit automatischem Fallback auf CN-Code Defaults
     ' ------------------------------------------------------------------------
     Public Shared Function calcCBAM(
     cn_code As String,
@@ -152,32 +136,23 @@ Public Class cATEZ_Greenpulse_CBAM_CostCalculation
 ) As String
 
         ' ------------------------------------------------------------
-        ' Validierung (grundlegend, API macht Rest)
+        ' Basis-Validierung
         ' ------------------------------------------------------------
-        If String.IsNullOrWhiteSpace(cn_code) OrElse cn_code.Length <> 8 OrElse Not IsNumeric(cn_code) Then
-            Return "Fehler: ungültiger CN-Code (muss 8-stellig numerisch sein)"
+        If cn_code Is Nothing OrElse Not IsNumeric(cn_code) _
+       OrElse Not {4, 6, 8}.Contains(cn_code.Length) Then
+            Return "Fehler: CN-Code muss 4-, 6- oder 8-stellig numerisch sein"
         End If
 
         If weight Is Nothing OrElse Not IsNumeric(weight) OrElse CDbl(weight) <= 0 Then
-            Return "Fehler: ungültiges Gewicht (muss > 0 sein)"
+            Return "Fehler: Gewicht muss > 0 sein"
         End If
 
-        If String.IsNullOrWhiteSpace(country_code) OrElse country_code.Length <> 2 Then
-            Return "Fehler: country_code muss ein ISO-2 Code sein (z.B. TR)"
+        If country_code Is Nothing OrElse country_code.Length <> 2 Then
+            Return "Fehler: country_code muss ISO-2 sein"
         End If
 
-        If see_total <> "" And (see_total IsNot Nothing AndAlso Not IsNumeric(see_total)) Then
-            Return "Fehler: ungültige echte Emissionen (see_total)"
-        End If
-
-        If year IsNot Nothing Then
-            If Not IsNumeric(year) OrElse CInt(year) < 2020 OrElse CInt(year) > 2100 Then
-                Return "Fehler: ungültiges Jahr"
-            End If
-        End If
-
-        If benchmark_value <> "" And (benchmark_value IsNot Nothing AndAlso Not IsNumeric(benchmark_value)) Then
-            Return "Fehler: ungültiger Benchmark-Wert"
+        If year IsNot Nothing AndAlso Not IsNumeric(year) Then
+            Return "Fehler: ungültiges Jahr"
         End If
 
         ' ------------------------------------------------------------
@@ -185,6 +160,42 @@ Public Class cATEZ_Greenpulse_CBAM_CostCalculation
         ' ------------------------------------------------------------
         Dim api As New cATEZ_Greenpulse_CBAM_CostCalculation()
 
+        ' ------------------------------------------------------------
+        ' Prüfen, ob Defaults benötigt werden
+        ' ------------------------------------------------------------
+        Dim needDefaults As Boolean = False
+
+        If see_total Is Nothing OrElse Not IsNumeric(see_total) OrElse CDbl(see_total) < 0 Then
+            needDefaults = True
+        End If
+
+        If benchmark_value Is Nothing OrElse Not IsNumeric(benchmark_value) OrElse CDbl(benchmark_value) < 0 Then
+            needDefaults = True
+        End If
+
+        Dim defaultEmission As Decimal? = Nothing
+        Dim defaultBenchmark As Decimal? = Nothing
+
+        If needDefaults Then
+            Try
+                Dim defResp = api.GetCnCodeDefaults(
+                cn_code,
+                country_code.ToUpperInvariant(),
+                If(IsNumeric(year), CInt(year), CType(Nothing, Integer?))
+            )
+
+                If defResp.success Then
+                    defaultEmission = defResp.data.default_emission
+                    defaultBenchmark = defResp.data.benchmark
+                Else
+                    Return $"FEHLER DEFAULTS {defResp.error.code}: {defResp.error.message}"
+                End If
+
+            Catch ex As Exception
+                Return "Technischer Fehler beim Laden der CN-Code Defaults: " & ex.Message
+            End Try
+        End If
+
         ' ------------------------------------------------------------
         ' Request aufbauen
         ' ------------------------------------------------------------
@@ -194,115 +205,154 @@ Public Class cATEZ_Greenpulse_CBAM_CostCalculation
         .weight = CDec(weight)
     }
 
-        If If(see_total, "") <> "" Then
+        ' see_total
+        If IsNumeric(see_total) AndAlso CDbl(see_total) >= 0 Then
             req.see_total = CDec(see_total)
-        Else
-            req.see_total = Nothing
+        ElseIf defaultEmission.HasValue Then
+            req.see_total = defaultEmission.Value
         End If
 
-        If year IsNot Nothing Then
+        ' year
+        If IsNumeric(year) Then
             req.year = CInt(year)
         End If
 
-        If If(benchmark_value, "") <> "" Then
+        ' benchmark_value
+        If IsNumeric(benchmark_value) AndAlso CDbl(benchmark_value) >= 0 Then
             req.benchmark_value = CDec(benchmark_value)
-        Else
-            req.benchmark_value = Nothing
+        ElseIf defaultBenchmark.HasValue Then
+            req.benchmark_value = defaultBenchmark.Value
         End If
 
         ' ------------------------------------------------------------
-        ' Request ausführen
+        ' Calculate
         ' ------------------------------------------------------------
         Dim resp As cCBAM_CostCalculation_Response
 
         Try
             resp = api.CalculateCost(req)
         Catch ex As Exception
-            Return "Technischer Fehler bei API-Aufruf: " & ex.Message
+            Return "Technischer Fehler bei Kostenberechnung: " & ex.Message
         End Try
 
-        ' ------------------------------------------------------------
-        ' Ergebnis aufbereiten
-        ' ------------------------------------------------------------
-        Dim erg As String = ""
-
-        If resp.success Then
-
-            erg &= "CBAM Kostenberechnung erfolgreich" & vbCrLf
-            erg &= "--------------------------------" & vbCrLf
-            erg &= $"CN-Code: {cn_code}" & vbCrLf
-            erg &= $"Ursprungsland: {req.country_code}" & vbCrLf
-            erg &= $"Gewicht: {req.weight:N2} t" & vbCrLf
-            erg &= vbCrLf
-
-            erg &= $"Kosten: {resp.data.cost:N2} {resp.data.currency}" & vbCrLf
-            erg &= $"CBAM Emission: {resp.data.cbam_emission:N5}" & vbCrLf
-            erg &= $"Benchmark: {resp.data.benchmark:N5}" & vbCrLf
-            erg &= $"Phase-Faktor: {resp.data.phase_factor:P2}" & vbCrLf
-            erg &= $"CO₂ Preis: {resp.data.carbon_price:N2} EUR/t" & vbCrLf
-
-            erg &= vbCrLf
-            erg &= "Details:" & vbCrLf
-            erg &= $"  Adjusted Benchmark: {resp.data.calculation_details.adjusted_benchmark:N5}" & vbCrLf
-            erg &= $"  Emission Difference: {resp.data.calculation_details.emission_difference:N5}" & vbCrLf
-            erg &= $"  Gewicht (berechnet): {resp.data.calculation_details.weight:N2} t" & vbCrLf
-
-        Else
-
-            erg &= "CBAM Kostenberechnung FEHLER" & vbCrLf
-            erg &= "--------------------------------" & vbCrLf
-            erg &= $"Code: {resp.error.code}" & vbCrLf
-            erg &= $"Message: {resp.error.message}" & vbCrLf
-            erg &= $"HTTP Status: {resp.error.statusCode}" & vbCrLf
-
+        If Not resp.success Then
+            Return $"FEHLER {resp.error.code}: {resp.error.message}"
         End If
 
-        Return erg
+        ' ------------------------------------------------------------
+        ' Ergebnis formatieren
+        ' ------------------------------------------------------------
+        Dim d = resp.data
+        Dim s As String = ""
+
+        s &= "CBAM Kostenberechnung" & vbCrLf
+        s &= "----------------------" & vbCrLf
+        s &= $"CN-Code: {cn_code}" & vbCrLf
+        s &= $"Ursprungsland: {req.country_code}" & vbCrLf
+        s &= $"Gewicht: {req.weight:N2} t" & vbCrLf
+        s &= vbCrLf
+
+        s &= $"Kosten: {d.cost:N2} {d.currency}" & vbCrLf
+        s &= $"CBAM Emission: {d.cbam_emission:N5}" & vbCrLf
+        s &= $"Benchmark: {d.benchmark:N5}" & vbCrLf
+        s &= $"Phase-Faktor: {d.phase_factor:P2}" & vbCrLf
+        s &= $"CO₂ Preis: {d.carbon_price:N2} EUR/t" & vbCrLf
+
+        If Not String.IsNullOrWhiteSpace(d.info_message) Then
+            s &= vbCrLf & "Info: " & d.info_message & vbCrLf
+        End If
+
+        Return s
 
     End Function
 
 
+    ' ------------------------------------------------------------------------
+    ' Helpers
+    ' ------------------------------------------------------------------------
+    Private Function ParseCalcResponse(jsonStr As String) _
+        As cCBAM_CostCalculation_Response
+
+        Dim json As New JsonObject()
+        json.Load(jsonStr)
+
+        Dim r As New cCBAM_CostCalculation_Response With {.success = json.BoolOf("success")}
+
+        If r.success Then
+            Dim d = json.ObjectOf("data")
+            r.data = New cCBAM_CostCalculation_Data With {
+                .cost = GetDec(d, "cost"),
+                .cbam_emission = GetDec(d, "cbam_emission"),
+                .benchmark = GetDec(d, "benchmark"),
+                .phase_factor = GetDec(d, "phase_factor"),
+                .carbon_price = GetDec(d, "carbon_price"),
+                .currency = d.StringOf("currency"),
+                .info_message = d.StringOf("info_message")
+            }
+
+            Dim cd = d.ObjectOf("calculation_details")
+            r.data.calculation_details = New cCBAM_CostCalculation_Details With {
+                .cbam_emission = GetDec(cd, "cbam_emission"),
+                .benchmark = GetDec(cd, "benchmark"),
+                .adjusted_benchmark = GetDec(cd, "adjusted_benchmark"),
+                .emission_difference = GetDec(cd, "emission_difference"),
+                .weight = GetDec(cd, "weight"),
+                .carbon_price = GetDec(cd, "carbon_price")
+            }
+        Else
+            r.error = ParseError(json)
+        End If
+
+        Return r
+    End Function
+
+    Private Shared Function ParseError(j As JsonObject) As cCBAM_Error
+        Dim e = j.ObjectOf("error")
+        Return New cCBAM_Error With {
+            .code = e.StringOf("code"),
+            .message = e.StringOf("message"),
+            .statusCode = e.IntOf("statusCode")
+        }
+    End Function
+
+    Private Shared Function GetDec(o As JsonObject, n As String) As Decimal
+        Dim s = o.StringOf(n).Replace(",", ".")
+        Dim v As Decimal
+        Decimal.TryParse(s, NumberStyles.Any, CultureInfo.InvariantCulture, v)
+        Return v
+    End Function
+
+    Private Shared Function GetNullableDec(o As JsonObject, n As String) As Decimal?
+        Dim s = o.StringOf(n)
+        If String.IsNullOrWhiteSpace(s) Then Return Nothing
+        Return GetDec(o, n)
+    End Function
+
 End Class
 
 ' ============================================================================
-'  REQUEST DTO
+'  DTOs
 ' ============================================================================
 Public Class cCBAM_CostCalculation_Request
-
     Public Property cn_code As String
     Public Property country_code As String
     Public Property weight As Decimal
-    Public Property see_total As Nullable(Of Decimal)
-    Public Property year As Nullable(Of Integer)
-    Public Property benchmark_value As Nullable(Of Decimal)
+    Public Property see_total As Decimal?
+    Public Property year As Integer?
+    Public Property benchmark_value As Decimal?
 
     Public Function ToJson() As String
-        Dim json As New JsonObject()
-
-        json.UpdateString("cn_code", cn_code)
-        json.UpdateString("country_code", country_code)
-        json.UpdateNumber("weight", weight.ToString(CultureInfo.InvariantCulture))
-
-        If see_total IsNot Nothing AndAlso see_total.HasValue Then
-            json.UpdateNumber("see_total", see_total.Value.ToString(CultureInfo.InvariantCulture))
-        End If
-
-        If year.HasValue Then
-            json.UpdateInt("year", year.Value)
-        End If
-
-        If benchmark_value IsNot Nothing AndAlso benchmark_value.HasValue Then
-            json.UpdateNumber("benchmark_value", benchmark_value.Value.ToString(CultureInfo.InvariantCulture))
-        End If
-
-        Return json.Emit()
+        Dim j As New JsonObject()
+        j.UpdateString("cn_code", cn_code)
+        j.UpdateString("country_code", country_code)
+        j.UpdateNumber("weight", weight.ToString(CultureInfo.InvariantCulture))
+        If see_total.HasValue Then j.UpdateNumber("see_total", see_total.Value.ToString(CultureInfo.InvariantCulture))
+        If year.HasValue Then j.UpdateInt("year", year.Value)
+        If benchmark_value.HasValue Then j.UpdateNumber("benchmark_value", benchmark_value.Value.ToString(CultureInfo.InvariantCulture))
+        Return j.Emit()
     End Function
-
 End Class
 
-' ============================================================================
-'  RESPONSE OBJECTS
-' ============================================================================
 Public Class cCBAM_CostCalculation_Response
     Public Property success As Boolean
     Public Property data As cCBAM_CostCalculation_Data
@@ -316,6 +366,7 @@ Public Class cCBAM_CostCalculation_Data
     Public Property phase_factor As Decimal
     Public Property carbon_price As Decimal
     Public Property currency As String
+    Public Property info_message As String
     Public Property calculation_details As cCBAM_CostCalculation_Details
 End Class
 
@@ -328,9 +379,6 @@ Public Class cCBAM_CostCalculation_Details
     Public Property carbon_price As Decimal
 End Class
 
-' ============================================================================
-'  CN CODE RESPONSE
-' ============================================================================
 Public Class cCBAM_CnCode_Response
     Public Property success As Boolean
     Public Property data As List(Of cCBAM_CnCode)
@@ -342,9 +390,17 @@ Public Class cCBAM_CnCode
     Public Property cn_description As String
 End Class
 
-' ============================================================================
-'  ERROR OBJECT
-' ============================================================================
+Public Class cCBAM_CnCodeDefaults_Response
+    Public Property success As Boolean
+    Public Property data As cCBAM_CnCodeDefaults
+    Public Property [error] As cCBAM_Error
+End Class
+
+Public Class cCBAM_CnCodeDefaults
+    Public Property default_emission As Decimal
+    Public Property benchmark As Decimal?
+End Class
+
 Public Class cCBAM_Error
     Public Property code As String
     Public Property message As String