player.hpp

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// This file is part of playd.
// playd is licensed under the MIT licence: see LICENSE.txt.

#ifndef PLAYD_PLAYER_HPP
#define PLAYD_PLAYER_HPP

#include <cstdint>
#include <functional>
#include <map>
#include <memory>
#include <string>
#include <utility>
#include <vector>

#include "audio/audio_sink.hpp"
#include "audio/audio_source.hpp"
#include "audio/audio.hpp"
#include "response.hpp"

class Player
{
public:
    using SinkFn =
            std::function<std::unique_ptr<AudioSink>(const AudioSource &, int)>;

    using SourceFn =
            std::function<std::unique_ptr<AudioSource>(const std::string &)>;

    Player(int device_id, SinkFn sink,
           std::map<std::string, SourceFn> sources);

    Player(const Player &) = delete;

    Player &operator=(const Player &) = delete;

    void SetIo(ResponseSink &io);

    bool Update();

    //
    // Commands
    //

    Response SetPlaying(const std::string &tag, bool playing);

    Response Dump(size_t id, const std::string &tag) const;

    Response Eject(const std::string &tag);

    Response End(const std::string &tag);

    Response Load(const std::string &tag, const std::string &path);

    Response Pos(const std::string &tag, const std::string &pos_str);

    Response Quit(const std::string &tag);

private:
    int device_id;                           
    SinkFn sink;                             
    std::map<std::string, SourceFn> sources; 
    std::unique_ptr<Audio> file;             
    bool dead;              
    const ResponseSink *io; 
    std::uint64_t last_pos; 

    static std::uint64_t PosParse(const std::string &pos_str);

    void PosRaw(const std::string &tag, std::uint64_t pos);

    void DumpState(size_t id, const std::string &tag) const;

    void Respond(int id, Response rs) const;

    bool CanAnnounceTime(std::uint64_t micros);

    //
    // Audio subsystem
    //

    std::unique_ptr<Audio> LoadRaw(const std::string &path) const;

    std::unique_ptr<AudioSource> LoadSource(const std::string &path) const;
};

#endif // PLAYD_PLAYER_HPP