/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. 
 *
 *    Copyright 2017 (c) Fraunhofer IOSB (Author: Julius Pfrommer)
 *    Copyright 2017 (c) Stefan Profanter, fortiss GmbH
 *    Copyright 2017 (c) Henrik Norrman
 */

#ifndef UA_SERVER_CONFIG_H_
#define UA_SERVER_CONFIG_H_

#ifdef __cplusplus
extern "C" {
#endif

#include "ua_server.h"
#include "ua_plugin_log.h"
#include "ua_plugin_network.h"
#include "ua_plugin_access_control.h"
#include "ua_plugin_pki.h"
#include "ua_plugin_securitypolicy.h"
#include "ua_plugin_nodestore.h"

/**
 * .. _server-configuration:
 *
 * Server Configuration
 * --------------------

 * The configuration structure is passed to the server during initialization.
 * The server expects that the configuration is not modified during runtime.
 * Currently, only one server can use a configuration at a time. During
 * shutdown, the server will clean up the parts of the configuration that are
 * modified at runtime through the provided API.
 *
 * Examples for configurations are provided in the ``/plugins`` folder.
 * The usual usage is as follows:
 *
 * 1. Create a server configuration with default settings as a starting point
 * 2. Modifiy the configuration, e.g. by adding a server certificate
 * 3. Instantiate a server with it
 * 4. After shutdown of the server, clean up the configuration (free memory)
 *
 * The :ref:`tutorials` provide a good starting point for this. */

typedef struct {
    UA_UInt32 min;
    UA_UInt32 max;
} UA_UInt32Range;

typedef struct {
    UA_Duration min;
    UA_Duration max;
} UA_DurationRange;

struct UA_ServerConfig {
    UA_UInt16 nThreads; /* only if multithreading is enabled */
    UA_Logger logger;

    /* Server Description */
    UA_BuildInfo buildInfo;
    UA_ApplicationDescription applicationDescription;
    UA_ByteString serverCertificate;

    /* MDNS Discovery */
#ifdef UA_ENABLE_DISCOVERY
    UA_String mdnsServerName;
    size_t serverCapabilitiesSize;
    UA_String *serverCapabilities;
#endif

    /* Custom DataTypes */
    size_t customDataTypesSize;
    UA_DataType *customDataTypes;
    /**
     * .. note:: See the section on :ref:`generic-types`. Examples for working
     *    with custom data types are provided in
     *    ``/examples/custom_datatype/``. */

    /* Nodestore */
    UA_Nodestore nodestore;

    /* Networking */
    size_t networkLayersSize;
    UA_ServerNetworkLayer *networkLayers;
    UA_String customHostname;

    /* Available endpoints */
    size_t endpointsSize;
    UA_Endpoint *endpoints;

    /* Node Lifecycle callbacks */
    UA_GlobalNodeLifecycle nodeLifecycle;
    /**
     * .. note:: See the section for :ref:`node lifecycle
     *    handling<node-lifecycle>`. */

    /* Access Control */
    UA_AccessControl accessControl;
    /**
     * .. note:: See the section for :ref:`access-control
     *    handling<access-control>`. */

    /* Certificate Verification */
    UA_CertificateVerification certificateVerification;

    /* Limits for SecureChannels */
    UA_UInt16 maxSecureChannels;
    UA_UInt32 maxSecurityTokenLifetime; /* in ms */

    /* Limits for Sessions */
    UA_UInt16 maxSessions;
    UA_Double maxSessionTimeout; /* in ms */

    /* Operation limits */
    UA_UInt32 maxNodesPerRead;
    UA_UInt32 maxNodesPerWrite;
    UA_UInt32 maxNodesPerMethodCall;
    UA_UInt32 maxNodesPerBrowse;
    UA_UInt32 maxNodesPerRegisterNodes;
    UA_UInt32 maxNodesPerTranslateBrowsePathsToNodeIds;
    UA_UInt32 maxNodesPerNodeManagement;
    UA_UInt32 maxMonitoredItemsPerCall;

    /* Limits for Requests */
    UA_UInt32 maxReferencesPerNode;

    /* Limits for Subscriptions */
    UA_UInt32 maxSubscriptionsPerSession;
    UA_DurationRange publishingIntervalLimits;
    UA_UInt32Range lifeTimeCountLimits;
    UA_UInt32Range keepAliveCountLimits;
    UA_UInt32 maxNotificationsPerPublish;
    UA_UInt32 maxRetransmissionQueueSize; /* 0 -> unlimited size */

    /* Limits for MonitoredItems */
    UA_UInt32 maxMonitoredItemsPerSubscription;
    UA_DurationRange samplingIntervalLimits;
    UA_UInt32Range queueSizeLimits; /* Negotiated with the client */

    /* Limits for PublishRequests */
    UA_UInt32 maxPublishReqPerSession;

    /* Discovery */
#ifdef UA_ENABLE_DISCOVERY
    /* Timeout in seconds when to automatically remove a registered server from
     * the list, if it doesn't re-register within the given time frame. A value
     * of 0 disables automatic removal. Default is 60 Minutes (60*60). Must be
     * bigger than 10 seconds, because cleanup is only triggered approximately
     * ervery 10 seconds. The server will still be removed depending on the
     * state of the semaphore file. */
    UA_UInt32 discoveryCleanupTimeout;
#endif
};

#ifdef __cplusplus
}
#endif

#endif /* UA_SERVER_CONFIG_H_ */