module ciena-waveserver-software {
  namespace "urn:ciena:params:xml:ns:yang:ciena-ws:ciena-waveserver-software";
  prefix software;

  import ciena-waveserver-typedefs {
    prefix cienawstypes;
  }

  organization
    "Ciena Corporation";
  contact
    "Web URL: http://www.ciena.com/
     Postal:  7035 Ridge Road
             Hanover, Maryland 21076
             U.S.A.
     Phone:   +1 800-921-1144
     Fax:     +1 410-694-5750";
  description
    "This module defines Software Status and Upgrade support for Ciena's Waveserver Platform.";

  revision 2017-12-07 {
    description
      "Added support for multi-step upgrade RPCs for 'download', 'activate', and 'commit'.
       Added 'upgrade-log' attribute support.";
    reference "Waveserver Ai user's guide.";
  }
  revision 2017-09-07 {
    description
      "Waveserver Platform Data Model
       Migrated from Waveserver Classic R1.4 YANG model.
       Updated namespace to 'ciena-waveserver'.
       Updated 'software-op-state' and 'upgrade-op-state' enum values.
       Removed several unsupported attributes/containers/RPCs.
       Added WCS and Module status containers/attributes.
       Moved some common attributes into groupings.";
    reference "Waveserver Ai user's guide.";
  }

  grouping software-device-status-group {
    description
      "Grouping for WCS and Module software status attributes.";
    leaf boot-zone {
      type boot-zone;
      description
        "The boot zone for the specified device.";
    }
    leaf last-restart {
      type cienawstypes:string-maxl-32;
      description
        "The date and time of last restart in the format of a human readable string. e.g 'Wed Jun 30 21:49:08 2015'";
    }
    leaf last-restart-reason {
      type cienawstypes:restart-reason;
      description
        "Cause for the last restart.";
    }
    leaf boot-image-a {
      type cienawstypes:string-maxl-64;
      description
        "The boot image or firmware image name for zone A.";
    }
    leaf boot-image-b {
      type cienawstypes:string-maxl-64;
      description
        "The boot image or firmware image name for zone B.";
    }
  }

  grouping software-release-group {
    description
      "Grouping for active and installed software release attributes.";
    leaf version {
      type cienawstypes:string-maxl-32;
      description
        "The software release version.";
    }
    leaf build-number {
      type cienawstypes:string-maxl-32;
      description
        "The software release build number.";
    }
    leaf build-tag {
      type cienawstypes:string-maxl-32;
      description
        "The software release build tag.";
    }
    leaf build-date {
      type cienawstypes:string-maxl-32;
      description
        "The software release build date.";
    }
  }

  typedef software-rtncode {
    type uint32;
    description
      "Return code value used in the software module. 0 indicate success. None-zero indicate failure.";
  }

  typedef software-op-state {
    type enumeration {
      enum "unknown" {
        description
          "Software operational state is unknown.";
      }
      enum "normal" {
        description
          "Software operational state is normal.";
      }
      enum "upgrade-in-progress" {
        description
          "Software upgrade is in progress.";
      }
      enum "automatic-upgrade-in-progress" {
        description
          "Automatic software upgrade is in progress.";
      }
      enum "restart-in-progress" {
        description
          "System restart is in progress. WCS is initializing but not yet in 'boot-complete' state.";
      }
      enum "module-restart-in-progress" {
        description
          "One or more modules is initializing and has not yet reached run-mode 'run' state.";
      }
      enum "application-failed" {
        description
          "One or more required applications is not running.";
      }
    }
    description
      "Software operational state.";
  }

  typedef upgrade-op-state {
    type enumeration {
      enum "unknown" {
        description
          "Upgrade operational state is unknown.";
      }
      enum "idle" {
        description
          "Software upgrade is idle.";
      }
      enum "download-in-progress" {
        description
          "Software download is in progress.";
      }
      enum "download-complete" {
        description
          "Software download is complete.";
      }
      enum "download-failed" {
        description
          "Software download failed.";
      }
      enum "activation-in-progress" {
        description
          "Software activation is in progress.";
      }
      enum "activation-complete" {
        description
          "Software activation is complete.";
      }
      enum "activation-failed" {
        description
          "Software activation failed.";
      }
      enum "installation-in-progress" {
        description
          "Software installation is in progress.";
      }
      enum "installation-failed" {
        description
          "Software installation failed.";
      }
      enum "commit-in-progress" {
        description
          "Software commit is in progress.";
      }
      enum "commit-failed" {
        description
          "Software commit failed.";
      }
      enum "cancel-in-progress" {
        description
          "Software cancel operation is in progress.";
      }
      enum "cancel-failed" {
        description
          "Software cancel operation failed.";
      }
      enum "delete-in-progress" {
        description
          "Software delete operation is in progress.";
      }
      enum "delete-failed" {
        description
          "Software delete operation failed.";
      }
      enum "automatic-upgrade-in-progress" {
        description
          "Automatic software upgrade is in progress.";
      }
      enum "automatic-upgrade-failed" {
        description
          "Automatic software upgrade failed.";
      }
      enum "module-cold-restart-required" {
        description
          "A cold restart is required on one or more modules.";
      }
    }
    description
      "Software upgrade operational state.";
  }

  typedef boot-zone {
    type enumeration {
      enum "unknown" {
        description
          "Boot zone is unknown.";
      }
      enum "a" {
        description
          "Boot zone A.";
      }
      enum "b" {
        description
          "Boot zone B.";
      }
    }
    description
      "The boot zone type.";
  }

  container waveserver-software {
    config false;
    description
      "Waveserver software upgrade and load management.";
    container status {
      description
        "Waveserver software status information.";
      leaf software-operational-state {
        type software-op-state;
        description
          "The current software operational state.";
      }
      leaf upgrade-operational-state {
        type upgrade-op-state;
        description
          "The current upgrade operational state.";
      }
      leaf committed-version {
        type cienawstypes:string-maxl-64;
        description
          "The committed software release version.";
      }
      leaf active-version {
        type cienawstypes:string-maxl-64;
        description
          "The active software release version.";
      }
      leaf upgrade-to-version {
        type cienawstypes:string-maxl-64;
        description
          "The software release version currently being upgraded to, if applicable.";
      }
      leaf last-operation {
        type cienawstypes:string-maxl-128;
        description
          "The software upgrade last operation.";
      }
      leaf upgrade-log {
        type cienawstypes:string-maxl-128;
        description
          "The software upgrade log file URI on the Waveserver.";
      }
    }
    container wcs-status {
      description
        "Software status information for the Waveserver Control Subsystem control module.";
      leaf boot-image-version {
        type cienawstypes:string-maxl-32;
        description
          "The current boot image version for the WCS.";
      }
      leaf fpga-id {
        type cienawstypes:string-maxl-64;
        description
          "The current FPGA image identifier for the WCS.";
      }
      uses software-device-status-group;
    }
    container module-status {
      description
        "Module software status information.";
      list module {
        key "module-id";
        description
          "List containing module-specific software status information.";
        leaf module-id {
          type cienawstypes:name-string;
          mandatory true;
          description
            "Unique access identifier string of the Module, which may just be a slot number (e.g. '1'). Key value for the Module list. Read-only attribute.";
        }
        uses software-device-status-group;
      }
    }
    container active {
      description
        "Waveserver active software information.";
      uses software-release-group;
    }
    container installed {
      description
        "Waveserver installed software release information.";
      list versions {
        key "index";
        description
          "A list of installed software releases on this Waveserver.";
        leaf index {
          type uint8;
          description
            "Unique id, read-only attribute.";
        }
        uses software-release-group;
      }
    }
  }
  rpc waveserver-software-install {
    description
      "Perform one-step software upgrade (download, activate, and commit) via url string.";
    input {
      leaf url {
        type cienawstypes:string-maxl-254;
        mandatory true;
        description
          "The URL specifying the remote location and package name to be installed. Example format is 'scp://<uid>:<pwd>@<ip-address>/<path>/<filename>'.";
      }
    }
    output {
      leaf return-code {
        type software-rtncode;
        description
          "return code: 0 is success; non-zero is failure";
      }
      leaf return-string {
        type cienawstypes:string-maxl-254;
        description
          "Return code description";
      }
    }
  }
  rpc waveserver-software-download {
    description
      "Download software load via url string.";
    input {
      leaf url {
        type cienawstypes:string-maxl-254;
        mandatory true;
        description
          "The URL specifying the remote location and package name to be installed. Example format is 'scp://<uid>:<pwd>@<ip-address>/<path>/<filename>'.";
      }
    }
    output {
      leaf return-code {
        type software-rtncode;
        description
          "return code: 0 is success; non-zero is failure";
      }
      leaf return-string {
        type cienawstypes:string-maxl-254;
        description
          "Return code description";
      }
    }
  }
  rpc waveserver-software-activate {
    description
      "Perform software activate via version string.";
    input {
      leaf version {
        type cienawstypes:string-maxl-32;
        mandatory true;
        description
          "The load version string.";
      }
      leaf auto-commit {
        type boolean;
        default "false";
        description
          "Optionally specify that the software load be automatically committed after activation.";
      }
    }
    output {
      leaf return-code {
        type software-rtncode;
        description
          "return code: 0 is success; non-zero is failure";
      }
      leaf return-string {
        type cienawstypes:string-maxl-254;
        description
          "Return code description";
      }
    }
  }
  rpc waveserver-software-delete {
    description
      "Perform software delete via version string.";
    input {
      leaf version {
        type cienawstypes:string-maxl-32;
        mandatory true;
        description
          "The load version string.";
      }
    }
    output {
      leaf return-code {
        type software-rtncode;
        description
          "return code: 0 is success; non-zero is failure";
      }
      leaf return-string {
        type cienawstypes:string-maxl-254;
        description
          "Return code description";
      }
    }
  }
  rpc waveserver-software-commit {
    description
      "Perform software commit operation in the current load has not been committed and it is in boot completion state.";
    output {
      leaf return-code {
        type software-rtncode;
        description
          "return code: 0 is success; non-zero is failure";
      }
      leaf return-string {
        type cienawstypes:string-maxl-254;
        description
          "Return code description";
      }
    }
  }
  rpc waveserver-software-cancel {
    description
      "Cancel an existing software upgrade operation that is in a failed state.";
    output {
      leaf return-code {
        type software-rtncode;
        description
          "return code: 0 is success; non-zero is failure";
      }
      leaf return-string {
        type cienawstypes:string-maxl-254;
        description
          "Return code description";
      }
    }
  }
}