//
// Copyright 2018 Pixar
//
// Licensed under the Apache License, Version 2.0 (the "Apache License")
// with the following modification; you may not use this file except in
// compliance with the Apache License and the following modification to it:
// Section 6. Trademarks. is deleted and replaced with:
//
// 6. Trademarks. This License does not grant permission to use the trade
//    names, trademarks, service marks, or product names of the Licensor
//    and its affiliates, except as required to comply with Section 4(c) of
//    the License and to reproduce the content of the NOTICE file.
//
// You may obtain a copy of the Apache License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the Apache License with the above modification is
// distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
// KIND, either express or implied. See the Apache License for the specific
// language governing permissions and limitations under the Apache License.
//
#include "pxr/base/trace/serialization.h"

#include "pxr/pxr.h"
#include "pxr/base/trace/jsonSerialization.h"

#include "pxr/base/tf/scopeDescription.h"
#include "pxr/base/js/json.h"

PXR_NAMESPACE_OPEN_SCOPE

bool 
TraceSerialization::Write(
    std::ostream& ostr, const std::shared_ptr<TraceCollection>& collection) 
{
    if (!collection) {
        return false;
    }
    return Write(
        ostr, std::vector<std::shared_ptr<TraceCollection>>{collection});
}

bool
TraceSerialization::Write(
    std::ostream& ostr,
    const std::vector<std::shared_ptr<TraceCollection>>& collections)
{
    JsValue colVal;
    if (collections.empty()) {
        return false;
    }
    {
        TF_DESCRIBE_SCOPE("Writing JSON");
        JsWriter js(ostr);
        Trace_JSONSerialization::WriteCollectionsToJSON(js, collections);
        return true;
    }
    return false;
}

std::unique_ptr<TraceCollection>
TraceSerialization::Read(std::istream& istr, std::string* errorStr)
{
    JsParseError error;
    JsValue value = JsParseStream(istr, &error);
    if (value.IsNull()) {
        if (errorStr) {
            *errorStr = TfStringPrintf("Error parsing JSON\n"
                "line: %d, col: %d ->\n\t%s.\n",
                error.line, error.column,
                error.reason.c_str());
        }
        return nullptr;
    }
    return Trace_JSONSerialization::CollectionFromJSON(value);
}

PXR_NAMESPACE_CLOSE_SCOPE