initial work on comparison

hub/services/models/pricing.py

@@ -382,3 +382,72 @@ class VSHNAppCatUnitRate(models.Model):
 
     def __str__(self):
         return f"{self.vshn_appcat_price_config.service.name} - {self.get_service_level_display()} Unit Rate - {self.amount} {self.currency}"
+
+
+class ExternalPricePlans(models.Model):
+    plan_name = models.CharField()
+    description = models.CharField(max_length=200, blank=True, null=True)
+    source = models.URLField(blank=True, null=True)
+    date_retrieved = models.DateField(blank=True, null=True)
+
+    ## Relations
+    cloud_provider = models.ForeignKey(
+        CloudProvider, on_delete=models.CASCADE, related_name="external_price"
+    )
+    service = models.ForeignKey(
+        Service, on_delete=models.CASCADE, related_name="external_price"
+    )
+    compare_to = models.ManyToManyField(
+        ComputePlan, related_name="external_prices", blank=True, null=True
+    )
+    vshn_appcat_price = models.ForeignKey(
+        VSHNAppCatPrice,
+        on_delete=models.CASCADE,
+        related_name="external_comparisons",
+        blank=True,
+        null=True,
+        help_text="Specific VSHN AppCat price configuration to compare against",
+    )
+    service_level = models.CharField(
+        max_length=2,
+        choices=VSHNAppCatPrice.ServiceLevel.choices,
+        blank=True,
+        null=True,
+        help_text="Service level equivalent for comparison",
+    )
+
+    ## Money
+    currency = models.CharField(
+        max_length=3,
+        default=Currency.CHF,
+        choices=Currency.choices,
+    )
+    term = models.CharField(
+        max_length=3,
+        default=Term.MTH,
+        choices=Term.choices,
+    )
+    amount = models.DecimalField(
+        max_digits=10,
+        decimal_places=4,
+        help_text="Price per unit in the specified currency, excl. VAT",
+    )
+
+    ## Offering
+    vcpus = models.FloatField(
+        help_text="Number of included vCPUs", blank=True, null=True
+    )
+    ram = models.FloatField(
+        help_text="Amount of GiB RAM included", blank=True, null=True
+    )
+    storage = models.FloatField(
+        help_text="Amount of GiB included", blank=True, null=True
+    )
+    competitor_sla = models.CharField(blank=True, null=True)
+    replicas = models.IntegerField(blank=True, null=True)
+
+    class Meta:
+        verbose_name = "External Price"
+
+    def __str__(self):
+        return f"{self.cloud_provider.name} - {self.service.name} - {self.plan_name}"