feat: abstracting cloud providers

app/terraform/bridge/__init__.py

@@ -1,14 +1,38 @@
 import datetime
 import os
 import sys
-from typing import Optional, Any, List
+from typing import Optional, Any, List, Tuple
+
+from sqlalchemy import select
 
 from app import app
 from app.extensions import db
-from app.models.bridges import BridgeConf, Bridge
-from app.models.base import Group
+from app.models.bridges import Bridge, BridgeConf
+from app.models.cloud import CloudAccount, CloudProvider
 from app.terraform.terraform import TerraformAutomation
 
+BridgeResourceRow = List[Tuple[Bridge, BridgeConf, CloudAccount]]
+
+
+def active_bridges_by_provider(provider: CloudProvider) -> List[BridgeResourceRow]:
+    stmt = select(Bridge, BridgeConf, CloudAccount).join_from(Bridge, BridgeConf).join_from(Bridge, CloudAccount).where(
+        CloudAccount.provider == provider,
+        Bridge.destroyed.is_(None),
+    )
+    bridges: List[BridgeResourceRow] = db.session.execute(stmt).all()
+    return bridges
+
+
+def recently_destroyed_bridges_by_provider(provider: CloudProvider) -> List[BridgeResourceRow]:
+    cutoff = datetime.datetime.utcnow() - datetime.timedelta(hours=72)
+    stmt = select(Bridge, BridgeConf, CloudAccount).join_from(Bridge, BridgeConf).join_from(Bridge, CloudAccount).where(
+        CloudAccount.provider == provider,
+        Bridge.destroyed.is_not(None),
+        Bridge.destroyed >= cutoff,
+    )
+    bridges: List[BridgeResourceRow] = db.session.execute(stmt).all()
+    return bridges
+
 
 class BridgeAutomation(TerraformAutomation):
     template: str
@@ -33,11 +57,8 @@ class BridgeAutomation(TerraformAutomation):
     def tf_generate(self) -> None:
         self.tf_write(
             self.template,
-            groups=Group.query.all(),
-            bridgeconfs=BridgeConf.query.filter(
-                BridgeConf.destroyed.is_(None),
-                BridgeConf.provider == self.provider
-            ).all(),
+            active_resources=active_bridges_by_provider(self.provider),
+            destroyed_resources=recently_destroyed_bridges_by_provider(self.provider),
             global_namespace=app.config['GLOBAL_NAMESPACE'],
             terraform_modules_path=os.path.join(*list(os.path.split(app.root_path))[:-1], 'terraform-modules'),
             backend_config=f"""backend "http" {{