//
// Copyright (c) 2019-2022 Ruben Perez Hidalgo (rubenperez038 at gmail dot com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//

#include <boost/mysql/connection.hpp>
#include <boost/mysql/errc.hpp>
#include <boost/mysql/error.hpp>
#include <boost/mysql/execute_params.hpp>
#include <boost/mysql/handshake_params.hpp>
#include <boost/mysql/resultset_base.hpp>
#include <boost/mysql/row.hpp>
#include <boost/mysql/row_view.hpp>
#include <boost/mysql/rows_view.hpp>
#include <boost/mysql/statement_base.hpp>

#include <memory>

#include "er_connection.hpp"
#include "er_impl_common.hpp"
#include "er_network_variant.hpp"
#include "er_resultset.hpp"
#include "er_statement.hpp"
#include "get_endpoint.hpp"
#include "network_result.hpp"
#include "streams.hpp"

using namespace boost::mysql::test;
using boost::mysql::error_code;
using boost::mysql::error_info;
using boost::mysql::field_view;
using boost::mysql::handshake_params;
using boost::mysql::row;
using boost::mysql::row_view;
using boost::mysql::rows_view;

namespace {

template <class Callable>
using impl_result_type = decltype(std::declval<Callable>()());

template <class Callable>
static network_result<impl_result_type<Callable>> impl(Callable&& cb)
{
    network_result<impl_result_type<Callable>> res;
    try
    {
        res.value = cb();
    }
    catch (const boost::system::system_error& err)
    {
        res.err = err.code();
        res.info = error_info(err.what());
    }
    return res;
}

template <class Stream>
class sync_exc_resultset : public er_resultset_base<Stream>
{
public:
    network_result<row_view> read_one() override
    {
        return impl([&] { return this->obj().read_one(); });
    }
    network_result<rows_view> read_some() override
    {
        return impl([&] { return this->obj().read_some(); });
    }
    network_result<rows_view> read_all() override
    {
        return impl([&] { return this->obj().read_all(); });
    }
};

template <class Stream>
class sync_exc_statement : public er_statement_base<Stream>
{
public:
    network_result<no_result> execute_params(
        const boost::mysql::execute_params<value_list_it>& params,
        er_resultset& result
    ) override
    {
        return impl([&] {
            this->obj().execute(params, this->cast(result));
            return no_result();
        });
    }
    network_result<no_result> execute_collection(
        const std::vector<field_view>& values,
        er_resultset& result
    ) override
    {
        return impl([&] {
            this->obj().execute(values, this->cast(result));
            return no_result();
        });
    }
    network_result<no_result> close() override
    {
        return impl([&] {
            this->obj().close();
            return no_result();
        });
    }
};

template <class Stream>
class sync_exc_connection : public er_connection_base<Stream>
{
public:
    using er_connection_base<Stream>::er_connection_base;
    network_result<no_result> physical_connect(er_endpoint kind) override
    {
        return impl([&] {
            this->conn_.stream().lowest_layer().connect(get_endpoint<Stream>(kind));
            return no_result();
        });
    }
    network_result<no_result> connect(
        er_endpoint kind,
        const boost::mysql::handshake_params& params
    ) override
    {
        return impl([&] {
            this->conn_.connect(get_endpoint<Stream>(kind), params);
            return no_result();
        });
    }
    network_result<no_result> handshake(const handshake_params& params) override
    {
        return impl([&] {
            this->conn_.handshake(params);
            return no_result();
        });
    }
    network_result<no_result> query(boost::string_view query, er_resultset& result) override
    {
        return impl([&] {
            this->conn_.query(query, this->cast(result));
            return no_result();
        });
    }
    network_result<no_result> prepare_statement(boost::string_view statement, er_statement& stmt)
        override
    {
        return impl([&] {
            this->conn_.prepare_statement(statement, this->cast(stmt));
            return no_result();
        });
    }
    network_result<no_result> quit() override
    {
        return impl([&] {
            this->conn_.quit();
            return no_result();
        });
    }
    network_result<no_result> close() override
    {
        return impl([&] {
            this->conn_.close();
            return no_result();
        });
    }
};

template <class Stream>
class sync_exc_variant : public er_network_variant_base<
                             Stream,
                             sync_exc_connection,
                             sync_exc_statement,
                             sync_exc_resultset>
{
public:
    const char* variant_name() const override { return "sync_exc"; }
};

sync_exc_variant<tcp_socket> tcp;
sync_exc_variant<tcp_ssl_socket> tcp_ssl;
// UNIX sockets don't add much value here

}  // namespace

void boost::mysql::test::add_sync_exc(std::vector<er_network_variant*>& output)
{
    output.push_back(&tcp);
    output.push_back(&tcp_ssl);
}