feat: init

Documentation/docs/internal-documentation/backend-services/notifications/database-models.md

@@ -0,0 +1,59 @@
+---
+description: Notification database model
+---
+
+# Database models
+
+#### **channel\_members\_notification\_preferences**
+
+```javascript
+{
+	//Primary key
+	"company_id": "uuid-v4",
+	"channel_id": "uuid-v4",
+	"user_id": "uuid-v4",
+
+	"preferences": "all" | "mentions" | "me" | "none",
+	"last_read": 16000000, //Timestamp in seconds	
+}
+```
+
+#### **channel\_thread\_users**
+
+```javascript
+{
+	//Primary key
+	"company_id": "uuid-v4",
+	"channel_id": "uuid-v4",
+	"thread_id": "uuid-v4",
+
+	"user_id": "uuid-v4"
+}
+```
+
+#### **user\_notifications\_badges \(this is not a counter like scylladb counters here, just classic table\)**
+
+```javascript
+{
+	//Primary key
+	"company_id": "uuid-v4", (partition key)
+	"user_id": "uuid-v4", (clustering key)
+	"workspace_id": "uuid-v4", (clustering key)
+	"channel_id": "uuid-v4", (clustering key)
+	"thread_id": "uuid-v4", (clustering key)
+}
+```
+
+#### **user\_notifications\_general\_preferences**
+
+```javascript
+{
+	//Primary key
+	"company_id": "uuid-v4",
+	"user_id": "uuid-v4",
+	"workspace_id": "uuid-v4",
+
+	"preferences": PreferencesObject
+}
+```
+