Implement database & model hashing

app/database/models.py

@@ -0,0 +1,50 @@
+from sqlalchemy import (
+    Column,
+    Text,
+    DateTime,
+)
+from sqlalchemy.orm import declarative_base
+from sqlalchemy.sql import func
+
+Base = declarative_base()
+
+
+def to_dict(obj):
+    fields = obj.__table__.columns.keys()
+    return {
+        field: (val.to_dict() if hasattr(val, "to_dict") else val)
+        for field in fields
+        if (val := getattr(obj, field))
+    }
+
+
+class Model(Base):
+    """
+    SQLAlchemy model representing a model file in the system.
+
+    This class defines the database schema for storing information about model files,
+    including their type, path, hash, and when they were added to the system.
+
+    Attributes:
+        type (Text): The type of the model, this is the name of the folder in the models folder (primary key)
+        path (Text): The file path of the model relative to the type folder (primary key)
+        hash (Text): A sha256 hash of the model file
+        date_added (DateTime): Timestamp of when the model was added to the system
+    """
+
+    __tablename__ = "model"
+
+    type = Column(Text, primary_key=True)
+    path = Column(Text, primary_key=True)
+    hash = Column(Text)
+    date_added = Column(DateTime, server_default=func.now())
+
+    def to_dict(self):
+        """
+        Convert the model instance to a dictionary representation.
+
+        Returns:
+            dict: A dictionary containing the attributes of the model
+        """
+        dict = to_dict(self)
+        return dict