stream_registry.h

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// SPDX-License-Identifier: GPL-2.0-only
//
// Copyright (c) 2026-present FERS Contributors (see AUTHORS.md).
//
// See the GNU GPLv2 LICENSE file in the FERS project root for more information.
 
#pragma once
 
#include <cstdint>
#include <string>
#include <unordered_map>
 
#include "core/receiver_output.h"
 
namespace serial::vita49
{
    class StreamRegistry
    {
    public:
        [[nodiscard]] std::uint32_t registerStream(const core::ReceiverStreamDescriptor& stream);
        [[nodiscard]] bool contains(std::uint32_t stream_id) const;
        [[nodiscard]] const core::ReceiverStreamDescriptor& descriptor(std::uint32_t stream_id) const;
 
    private:
        struct Key
        {
            SimId receiver_id = 0;
            std::string receiver_name;
            std::string mode;
 
            [[nodiscard]] bool operator==(const Key& other) const noexcept;
        };
 
        struct KeyHash
        {
            [[nodiscard]] std::size_t operator()(const Key& key) const noexcept;
        };
 
        [[nodiscard]] static std::uint32_t initialStreamId(const Key& key) noexcept;
 
        std::unordered_map<Key, std::uint32_t, KeyHash> _by_key;
        std::unordered_map<std::uint32_t, Key> _by_stream_id;
        std::unordered_map<std::uint32_t, core::ReceiverStreamDescriptor> _descriptors;
    };
}