chore: handle eshipper credential transfer from username|password to principal|credential

Author: danh91

modules/core/karrio/server/providers/migrations/0078_auto_20240813_1552.py

@@ -1,8 +1,8 @@
 # Generated by Django 4.2.15 on 2024-08-13 15:52
 
+import karrio.lib as lib
 from django import forms
 import django.conf as conf
-from django.db import migrations
 import karrio.server.core.models
 from django.db import migrations, models, transaction
 
@@ -69,6 +69,20 @@ def forwards_func(apps, schema_editor):
                 _carrier.carrier_code = "usps_wt"
             if _carrier_name == "usps_international":
                 _carrier.carrier_code = "usps_wt_international"
+            if _carrier_name == "eshipper":
+                _carrier.credentials = {
+                    **_carrier.credentials,
+                    "principal": lib.identity(
+                        _settings.get("principal")
+                        if any(_settings.get("principal") or "")
+                        else _settings.get("username")
+                    ),
+                    "credential": lib.identity(
+                        _settings.get("credential")
+                        if any(_settings.get("credential") or "")
+                        else _settings.get("password")
+                    ),
+                }
 
         if any(_services):
             settings = getattr(_carrier, MODELS[_carrier_name].__name__.lower())