// SPDX-FileCopyrightText: 2021 Open Networking Foundation
//
// SPDX-License-Identifier: LicenseRef-ONF-Member-Only-1.0

module onf-vcs {
  namespace "http://opennetworking.org/aether/vcs";
  prefix sl;

  import ietf-yang-types{ prefix yg; }
  import onf-aether-types{ prefix at; }
  import onf-application{ prefix app; }
  import onf-device-group{ prefix dg; }
  import onf-enterprise{ prefix ent; }
  import onf-template{ prefix vt; }
  import onf-traffic-class{ prefix tc; }
  import onf-upf { prefix upf; }

  organization "Open Networking Foundation.";
  contact "Scott Baker";
  description 
    "An Aether Virtual Cellular Service (VCS) is
     used to connect devices with applications";

  revision "2021-09-10" {
    description "An Aether Virtual Cellular Service";
    reference "RFC 6087";
  }

  typedef vcs-id {
        type yg:yang-identifier {
            length 1..32;
        }
  }

  container vcs {
    description "The top level container";

    list vcs {
      key "id";
      description
        "List of virtual cellular services";

      leaf id {
        type vcs-id;
        description "ID for this vcs.";
      }

      leaf display-name {
        type string {
            length 1..80;
        }
        description "display name to use in GUI or CLI";
      }

      list device-group {
        key "device-group";   
        leaf device-group {
          type leafref {
            path "/dg:device-group/dg:device-group/dg:id";
          }          
          description
            "Link to device group";          
        }
        leaf enable {
          type boolean;
          default true;
          description
            "Enable this device group";
        }
        description
          "A list of device groups. Groups will only participate in
           the VCS if the enable field is set to True";
      }         

      leaf template {
        type leafref {
          path "/vt:template/vt:template/vt:id";
        }          
        description
          "Link to user vcs template that was used to initialize
           this VCS";
      }

      list application {
        key "application";   
        leaf application {
          type leafref {
            path "/app:application/app:application/app:id";
          }
          mandatory true;
          description
            "Link to application";
        }
        leaf allow {
          type boolean;
          default true;
          description
            "Allow or deny this application";
        }
        description
          "An ordered list of applications to allow and deny. The deny rules
           will be executed first, followed by the allow rules. The first rule
           to match is returned. An implicit DENY ALL lies at the end.";
      }      

      leaf upf {
        type leafref {
          path "/upf:upf/upf:upf/upf:id";
        }          
        description
          "Link to user plane that implements this vcf";
      }

      leaf description {
        type at:description;
        description "description of this vcs";
      }

      leaf enterprise {
        type leafref {
          path "/ent:enterprise/ent:enterprise/ent:id";
        }
        mandatory true;
        description
          "Link to enterprise that owns this VCS";
      }      

      // the following are populated from the template
      leaf sst {
        type at:sst;
        mandatory true;
        description "Slice/Service type. Immutable.";
      }
      
      leaf sd {
        type at:sd;
        mandatory true;
        description "Slice differentiator. Immutable.";
      }

      container device {
        description "Per-device QOS Settings";
        container mbr {
          description "Maximum bitrate";
          leaf uplink {
            type at:bitrate;
            units bps;
            description "Per-device mbr uplink data rate in mbps";
          }

          leaf downlink {
            type at:bitrate;
            units bps;
            description "Per-device mbr downlink data rate in mbps";
          }
        }
      }

      container slice {
        description "Per-Slice QOS Settings";
        container mbr {
          description "Maximum bitrate";
          leaf uplink {
            type at:bitrate;
            units bps;
            description "Per-Slice mbr uplink data rate in mbps";
          }

          leaf downlink {
            type at:bitrate;
            units bps;
            description "Per-Slice mbr downlink data rate in mbps";
          }
        }
      }

      leaf traffic-class {
        type leafref {
          path "/tc:traffic-class/tc:traffic-class/tc:id";
        }
        mandatory true;
        description
          "Link to traffic class";
      }
      // end of items populated from the template
    }
  } 
}