module test-interface {

	namespace "http://github.com/Azure/interface";
	prefix intf;

	import ietf-yang-types {
		prefix yang;
	}

	import ietf-inet-types {
		prefix inet;
	}

	import test-head {
		prefix head;
		revision-date 2019-07-01;
	}

	import test-port {
		prefix port;
		revision-date 2019-07-01;
	}

	revision 2019-07-01 {
		description "First Revision";
	}

	container interface {
		container INTERFACE {

			description "INTERFACE part of config_db.json";

			list INTERFACE_LIST {

				key "interface ip-prefix";

				leaf interface {
					type leafref {
						path /port:port/port:PORT/port:PORT_LIST/port:port_name;
					}
				}

				leaf ip-prefix {
					type inet:ip-prefix;
				}

				leaf scope {
					type enumeration {
						enum global;
						enum local;
					}
				}

				leaf family {

					/* family leaf needed for backward compatibility
					   Both ip4 and ip6 address are string in IETF RFC 6021,
					   so must statement can check based on : or ., family
					   should be IPv4 or IPv6 according.
					 */

					must "(contains(../ip-prefix, ':') and current()='IPv6') or
						(contains(../ip-prefix, '.') and current()='IPv4')";
					type head:ip-family;
				}
			}
			/* end of INTERFACE_LIST */

		}
		/* end of INTERFACE container */
	}
}