refactor to have all DB executive functions be in api/

db/fake_db.go

@@ -71,58 +71,3 @@ func WriteDB(db_name string, data interface{}) error {
 	fmt.Printf("Successfully wrote to %s DB\n", db_name)
 	return nil
 }
-
-func AddUser(user map[string]interface{}) error {
-	currentData := ExecDB("users")
-	if currentData == nil {
-		return fmt.Errorf("error reading users database")
-	}
-
-	users := currentData["users"].([]interface{})
-	users = append(users, user)
-	return WriteDB("users", users)
-}
-
-func AddMessage(message map[string]interface{}) error {
-	currentData := ExecDB("messages")
-	if currentData == nil {
-		return fmt.Errorf("error reading messages database")
-	}
-
-	messages := currentData["messages"].([]interface{})
-	messages = append(messages, message)
-	return WriteDB("messages", messages)
-}
-
-func DeleteMessage(messageID string) error {
-	currentData := ExecDB("messages")
-	if currentData == nil {
-		return fmt.Errorf("error reading messages database")
-	}
-
-	messages, ok := currentData["messages"].([]interface{})
-	if !ok {
-		return fmt.Errorf("messages data is in an unexpected format")
-	}
-
-	var updatedMessages []interface{}
-	found := false
-
-	for _, value := range messages {
-		if item, ok := value.(map[string]interface{}); ok {
-			if id, exists := item["ID"]; exists {
-				if idStr, ok := id.(string); ok && idStr == messageID {
-					found = true
-					continue
-				}
-			}
-		}
-		updatedMessages = append(updatedMessages, value)
-	}
-
-	if !found {
-		return fmt.Errorf("message with ID %s not found", messageID)
-	}
-
-	return WriteDB("messages", updatedMessages)
-}