initial work on comparison

hub/services/admin/pricing.py

@@ -22,6 +22,7 @@ from ..models import (
     VSHNAppCatUnitRate,
     ProgressiveDiscountModel,
     DiscountTier,
+    ExternalPricePlans,
 )
 
 
@@ -308,3 +309,33 @@ class StoragePlanAdmin(ImportExportModelAdmin):
         return format_html("<br>".join([f"{p.amount} {p.currency}" for p in prices]))
 
     display_prices.short_description = "Prices (Amount Currency)"
+
+
+@admin.register(ExternalPricePlans)
+class ExternalPricePlansAdmin(admin.ModelAdmin):
+    """Admin configuration for ExternalPricePlans model"""
+
+    list_display = (
+        "plan_name",
+        "cloud_provider",
+        "service",
+        "currency",
+        "amount",
+        "display_compare_to_count",
+        "date_retrieved",
+    )
+    list_filter = ("cloud_provider", "service", "currency", "term")
+    search_fields = ("plan_name", "cloud_provider__name", "service__name")
+    ordering = ("cloud_provider", "service", "plan_name")
+
+    # Configure many-to-many field display
+    filter_horizontal = ("compare_to",)
+
+    def display_compare_to_count(self, obj):
+        """Display count of compute plans this external price compares to"""
+        count = obj.compare_to.count()
+        if count == 0:
+            return "No comparisons"
+        return f"{count} plan{'s' if count != 1 else ''}"
+
+    display_compare_to_count.short_description = "Compare To"