/* -*- Mode: C++; tab-width: 4; c-basic-offset: 4; indent-tabs-mode: nil -*- */
/*
 *   Copyright 2020-Present Couchbase, Inc.
 *
 *   Licensed under the Apache License, Version 2.0 (the "License");
 *   you may not use this file except in compliance with the License.
 *   You may obtain a copy of the License at
 *
 *       http://www.apache.org/licenses/LICENSE-2.0
 *
 *   Unless required by applicable law or agreed to in writing, software
 *   distributed under the License is distributed on an "AS IS" BASIS,
 *   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *   See the License for the specific language governing permissions and
 *   limitations under the License.
 */

#pragma once

#include <couchbase/codec/tao_json_serializer.hxx>
#include <couchbase/query_meta_data.hxx>

#include <chrono>
#include <cinttypes>
#include <optional>
#include <vector>

namespace couchbase
{

/**
 * Represents result of @ref cluster#query() and @ref scope#query() calls.
 *
 * @since 1.0.0
 * @committed
 */
class query_result
{
  public:
    /**
     * @since 1.0.0
     * @internal
     */
    query_result() = default;

    /**
     * @since 1.0.0
     * @volatile
     */
    query_result(query_meta_data meta_data, std::vector<codec::binary> rows)
      : meta_data_{ std::move(meta_data) }
      , rows_{ std::move(rows) }
    {
    }

    /**
     * Returns the {@link query_meta_data} giving access to the additional metadata associated with this query.
     *
     * @return response metadata
     *
     * @since 1.0.0
     * @committed
     */
    [[nodiscard]] auto meta_data() const -> const query_meta_data&
    {
        return meta_data_;
    }

    /**
     * @return list of query results as binary strings
     *
     * @since 1.0.0
     * @internal
     */
    [[nodiscard]] auto rows_as_binary() const -> const std::vector<codec::binary>&
    {
        return rows_;
    }

    template<typename Serializer,
             typename Document = typename Serializer::document_type,
             std::enable_if_t<codec::is_serializer_v<Serializer>, bool> = true>
    [[nodiscard]] auto rows_as() const -> std::vector<Document>
    {
        std::vector<Document> rows;
        rows.reserve(rows_.size());
        for (const auto& row : rows_) {
            rows.emplace_back(Serializer::template deserialize<Document>(row));
        }
        return rows;
    }

    [[nodiscard]] auto rows_as_json() const -> std::vector<codec::tao_json_serializer::document_type>
    {
        return rows_as<codec::tao_json_serializer>();
    }

  private:
    query_meta_data meta_data_{};
    std::vector<codec::binary> rows_{};
};
} // namespace couchbase