module yumaworks-system {

    namespace "http://yumaworks.com/ns/yumaworks-system";

    prefix "ysys";

    import ietf-netconf { prefix nc; }

    import ietf-netconf-monitoring { prefix ncm; }

    import ietf-yang-types { prefix yang; }

    import yuma-app-common { prefix yumaapp; }

    import yuma-ncx { prefix ncx; }

    import yuma-types { prefix nt; }

    import yumaworks-restconf { prefix rc; }

    //import yuma-system { prefix yuma-sys; }

    import ietf-netconf-acm { prefix nacm; }

    organization "YumaWorks, Inc.";

    contact
        "Support <support at yumaworks.com>";

    description
       "Common system operations for the netconfd-pro server.

     Copyright (c) 2013 - 2017 YumaWorks, Inc. All rights reserved.

     Redistribution and use in source and binary forms, with or
     without modification, is permitted pursuant to, and subject
     to the license terms contained in, the BSD 3-Clause License
     http://opensource.org/licenses/BSD-3-Clause";

    revision 2017-12-22 {
        description
          "Copy load rpc into this module so yuma-system
           can be removed.";
    }

    revision 2017-10-06 {
        description
          "Add save-config parameter to the load and
           load-bundle operations.
           Add delete-config parameter to the unload and
           unload-bundle operations.";
    }

    revision 2016-08-24 {
        description
          "Add unload-bundle operation.";
    }

    revision 2016-04-27 {
        description
          "Add deviation parameter to load-bundle input params.";
    }

    revision 2015-09-26 {
        description
          "Add depth parameter to get, get-config, and
           copy-config operations.";
    }

    revision 2014-10-16 {
        description
          "Add with-owners parameter to get, get-config, and
           copy-config operations.";
    }

    revision 2014-05-27 {
        description
          "Add overwrite parameter to backup operation.";
    }

    revision 2014-01-09 {
        description
          "Add load-bundle operation.";
    }

    revision 2013-11-13 {
        description
          "Add replay-config internal operation.
           Add module-type leaf to netconf-state schema list";
    }

    revision 2013-09-19 {
        description
          "Add comment parameter to commit operation.";
    }

    revision 2013-08-30 {
        description
          "Add unload operation.";
    }

    revision 2013-07-16 {
        description
          "Add cancel-subscription operation.";
    }

    revision 2013-01-06 {
        description
          "Initial version.";
    }

    augment /ncm:netconf-state {
      container backup-files {
        config false;
        description
          "Reports the backup files currently available
           on the server. Only present if backup commands
           in this module are supported by the server";
        list backup-file {
          key name;

          leaf name {
            type nt:NcxName;
            description
              "File name for the backup.";
          }

          leaf backup-time {
            type yang:date-and-time;
            description
              "Date and time the backup file was created.";
          }
        }
      }
    }

    augment /ncm:netconf-state/ncm:schemas/ncm:schema {
      leaf conformance {
        type boolean;
        config false;
        description
          "Indicates whether the server is claiming conformance
           to the module represented by this schema or not.
           If 'true', the server implements the module
           represented by the indicated schema,
           according to the YANG module capability URI.
           If 'false', the server just imports definitions
           from the module represented by the indicated schema.";
      }

      leaf module-type {
        type enumeration {
          enum module {
            description "Schema represents a YANG module";
          }
          enum submodule {
            description "Schema represents a YANG submodule";
          }
        }
        config false;
        description
          "Indicates the type of module for this entry";
      }
    }

    rpc backup {
      nacm:default-deny-all;
      description
        "Backup the current running configuration to a file
         on the device.";
      input {
        ncx:default-parm filename;
        leaf filename {
          type nt:NcxName;
          mandatory true;
          description
            "File name for the backup. A simple identifier name
             is expected with no directory specifications or
             file extensions added. (e.g., 'backup1').";
        }
        leaf overwrite {
          type boolean;
          default false;
          description
            "If 'true' then allow an existing backup with the same
            'filename' value to be overwritten. If 'false' then return
            an error if the file already exists.";
        }
      }
    }

    rpc delete-backup {
      nacm:default-deny-all;
      description
        "Delete the specified backup file on the device.";
      input {
        ncx:default-parm filename;
        leaf filename {
          type nt:NcxName;
          mandatory true;
          description
            "File name to delete";
        }
      }
    }


    rpc restore {
      nacm:default-deny-all;
      description
        "Restore a saved configuration on the device to the
         running configuration.";
      input {
        ncx:default-parm filename;
        leaf filename {
          type nt:NcxName;
          mandatory true;
          description
            "File name for the restore. A simple identifier name
             is expected with no directory specifications or
             file extensions added. (e.g., 'backup1').";
        }
      }
    }

    rpc cancel-subscription {
      description
        "Cancel a notification subscription for the session,
         if this session has an active subscription.  If not,
         just return OK.";
    }

    rpc unload {
      nacm:default-deny-all;
      description
        "Unload a module from the server. Remove the associated
         server instrumentation library (SIL). Remove any data
         nodes in the system from the module. Remove the module
         from the server capabilities and NETCONF monitoring
         data. Remove the module namespace from the system.

         Note: this operation does not remove the --module parameter
         from the server configuration file if it exists.

         The following conditions must be true for the unload to be
         attempted by the server:

           * The module is allowed to be unloaded. It is data-model
             and vendor specific whether a module can be
             removed at run-time.

           * There are no dependencies on the module being removed.
             No modules that import this module are also loaded.

           * The module was loaded into the server, either via the
             <load> operation or the --module configuration parameter.

           * No datastores are currently locked.  The server will
             attempt to lock all datastores on behalf of the client
             for the entire unload operation.

           * The candidate datastore does not contain any edits
             that have not been committed.

           * No confirmed-commit operation is in progress.

         If all these conditions are met then the server will
         attempt to unload the specified module.  The unload
         operation can fail for various reasons:

           * The client does not have write privileges for
             all data being deleted. This includes any
             top-level data nodes and any nested augment
             nodes in other modules.

           * The deletion of one or more nodes would cause the
             running datastore to fail any YANG validation
             tests in RFC 6020, sec. 8.3.3.

           * Server resource errors occur
       ";

      input {
        ncx:default-parm module;
        leaf module {
          type nt:NcxName;
          mandatory true;
          description
            "The name of the module to unload.";
        }
        uses delete-config-parm;
      }
    }

    rpc replay-config {
      ncx:hidden;
      ncx:abstract;
      description
        "Replay the running config for SIL components that have
         reset during operation.";
      // TBD: leaf-list input parameter to select sub-trees to reload
    }

    rpc load-bundle {
      nacm:default-deny-all;
      description
        "Load a SIL bundle into the server, if it is not already loaded.";
      input {
        ncx:default-parm bundle;
        leaf bundle {
          description "Name of the SIL bundle to load.";
          mandatory true;
          type nt:NcxName;
        }
        uses yumaapp:DeviationParm;
        uses save-config-parm;
      }
    }

    rpc unload-bundle {
      nacm:default-deny-all;
      description
        "Unload a SIL bundle from the server, if it is loaded.";
      input {
        ncx:default-parm bundle;
        leaf bundle {
          description "Name of the SIL bundle to unload.";
          mandatory true;
          type nt:NcxName;
        }
        uses delete-config-parm;
      }
    }

    augment /nc:commit/nc:input {
      leaf comment {
        type string {
          length "0 .. 1024";
        }
        description
          "User provided comment to add to audit log for this
           commit operation.";
      }
    }

    grouping with-owners-parm {
      leaf with-owners {
        type empty;
        description
          "Include the 'ywx:owner' attribute in the response for nodes
           that have stored owner names.  The --save-owners CLI parameter
           for the server must be set to 'complex' or 'all' for any
           owner names to be saved.";
      }
    }

    augment /nc:get-config/nc:input {
      uses with-owners-parm;
      uses rc:depth-parameter;
    }

    augment /nc:get/nc:input {
      uses with-owners-parm;
      uses rc:depth-parameter;
    }

    augment /nc:copy-config/nc:input {
      uses with-owners-parm;
      uses rc:depth-parameter;
    }

    grouping save-config-parm {
        leaf save-config {
          type boolean;
          default false;
          description
            "If 'true' then save the module or bundle load
             configuration in the --confdir directory, if the
             load or load-bundle operation is completed without
             errors.

             Ignored if the --no-config CLI parameter is used
             or the --confdir CLI parameter is not specified
             and no default configuration directory is found.

             A configuration file is created or replaced in this
             directory with the name <module-name>.conf.";
        }
    }

    grouping delete-config-parm {
        leaf delete-config {
          type boolean;
          default false;
          description
            "If 'true' then delete the module or bundle load
             configuration in the --confdir directory, if the unload
             or unload-bundle operation is completed without errors.

             Ignored if the --no-config CLI parameter is used
             or the --confdir CLI parameter is not specified
             and no default configuration directory is found.

             A configuration file is deleted in this
             directory with the name <module-name>.conf.";
        }
    }

    /*  !!! removed
    augment /yuma-sys:load/yuma-sys:input {
      uses save-config-parm;
    }
    */

    rpc load {
      nacm:default-deny-all;
      description
        "Load a module into the server, if it is not already loaded.
         Returns the module revision date (or today's date if none),
         of the module that was loaded, or an error if not found
         or the module found had errors and was not loaded
         successfully.  If the module is already loaded, then the
         revision date will simply be returned.";

      input {
        ncx:default-parm module;
        leaf module {
          description "Name of the module to load.";
          mandatory true;
          type nt:NcxName;
        }
        leaf revision {
          description
             "Module revision to load.";
          type nt:Date;
        }
        uses yumaapp:DeviationParm;
        uses save-config-parm;
      }

      output {
        leaf mod-revision {
          description
            "Revision date of the module in use by the server.
             Will only be present if the module has a version";
          type nt:Date;
        }
      }

    }

}