/* 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 2022 (c) Fraunhofer IOSB (Author: Julius Pfrommer)

 */

#include "eventloop_common.h"

UA_StatusCode

UA_KeyValueRestriction_validate(const UA_Logger *logger, const char *logprefix,

                                const UA_KeyValueRestriction *restrictions,

                                size_t restrictionsSize,

                                const UA_KeyValueMap *map) {

    for(size_t i = 0; i < restrictionsSize; i++) {

        const UA_KeyValueRestriction *r = &restrictions[i];

        const UA_Variant *val = UA_KeyValueMap_get(map, r->name);

        /* Value not present but required? */

        if(!val) {

            if(r->required) {

                UA_LOG_WARNING(logger, UA_LOGCATEGORY_EVENTLOOP,

                               "%s\t| Parameter %.*s required but not defined",

                               logprefix, (int)r->name.name.length, (char*)r->name.name.data);

                return UA_STATUSCODE_BADINTERNALERROR;

            }

            continue;

        }

        /* Type matches */

        if(val->type != r->type) {

            UA_LOG_WARNING(logger, UA_LOGCATEGORY_EVENTLOOP,

                           "%s\t| Parameter %.*s has the wrong type",

                           logprefix, (int)r->name.name.length, (char*)r->name.name.data);

            return UA_STATUSCODE_BADINTERNALERROR;

        }

        /* Scalar / array is allowed */

        UA_Boolean scalar = UA_Variant_isScalar(val);

        if(scalar && !r->scalar) {

            UA_LOG_WARNING(logger, UA_LOGCATEGORY_EVENTLOOP,

                           "%s\t| Parameter %.*s must not be scalar",

                           logprefix, (int)r->name.name.length, (char*)r->name.name.data);

            return UA_STATUSCODE_BADINTERNALERROR;

        }

        if(!scalar && !r->array) {

            UA_LOG_WARNING(logger, UA_LOGCATEGORY_EVENTLOOP,

                           "%s\t| Parameter %.*s must not be an array",

                           logprefix, (int)r->name.name.length, (char*)r->name.name.data);

            return UA_STATUSCODE_BADCONNECTIONREJECTED;

        }

    }

    return UA_STATUSCODE_GOOD;

}

UA_StatusCode

UA_EventLoopCommon_allocStaticBuffer(UA_KeyValueMap *params,

                                     UA_QualifiedName name,

                                     UA_UInt32 defaultSize,

                                     UA_ByteString *buf) {

    UA_StatusCode res = UA_STATUSCODE_GOOD;

    UA_UInt32 bufSize = defaultSize;

    const UA_UInt32 *configBufSize = (const UA_UInt32 *)

        UA_KeyValueMap_getScalar(params, name, &UA_TYPES[UA_TYPES_UINT32]);

    if(configBufSize)

        bufSize = *configBufSize;

    else

        /* Write the resolved default back into the params so the

         * SecureChannel constraint logic in ua_server_binary.c caps the

         * channel to the actual static-buffer size. */

        res = UA_KeyValueMap_setScalar(params, name, &bufSize,

                                       &UA_TYPES[UA_TYPES_UINT32]);

    if(buf->length != bufSize) {

        UA_ByteString_clear(buf);

        res |= UA_ByteString_allocBuffer(buf, bufSize);

    }

    return res;

}