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#pragma once

#include <vector>
#include <cstdint>
#include <unordered_map>
#include "WaylandProtocol.hpp"
#include "wlr-output-management-unstable-v1.hpp"
#include "../helpers/signal/Signal.hpp"
#include <aquamarine/output/Output.hpp>

class CMonitor;

class COutputHead;
class COutputMode;

struct SMonitorRule;

enum eWlrOutputCommittedProperties : uint32_t {
    OUTPUT_HEAD_COMMITTED_MODE          = (1 << 0),
    OUTPUT_HEAD_COMMITTED_CUSTOM_MODE   = (1 << 1),
    OUTPUT_HEAD_COMMITTED_POSITION      = (1 << 2),
    OUTPUT_HEAD_COMMITTED_TRANSFORM     = (1 << 3),
    OUTPUT_HEAD_COMMITTED_SCALE         = (1 << 4),
    OUTPUT_HEAD_COMMITTED_ADAPTIVE_SYNC = (1 << 5),
};

struct SWlrManagerOutputState {
    uint32_t        committedProperties = 0;

    WP<COutputMode> mode;
    struct {
        Vector2D size;
        uint32_t refresh = 0;
    } customMode;
    Vector2D            position;
    wl_output_transform transform    = WL_OUTPUT_TRANSFORM_NORMAL;
    float               scale        = 1.F;
    bool                adaptiveSync = false;
    bool                enabled      = true;
};

struct SWlrManagerSavedOutputState {
    uint32_t            committedProperties = 0;
    Vector2D            resolution;
    uint32_t            refresh = 0;
    Vector2D            position;
    wl_output_transform transform    = WL_OUTPUT_TRANSFORM_NORMAL;
    float               scale        = 1.F;
    bool                adaptiveSync = false;
    bool                enabled      = true;
};

class COutputManager {
  public:
    COutputManager(SP<CZwlrOutputManagerV1> resource_);

    bool good();
    void ensureMonitorSent(PHLMONITOR pMonitor);
    void sendDone();

    // holds the states for this manager.
    std::unordered_map<std::string, SWlrManagerSavedOutputState> m_monitorStates;

  private:
    SP<CZwlrOutputManagerV1>     m_resource;
    bool                         m_stopped = false;

    WP<COutputManager>           m_self;

    std::vector<WP<COutputHead>> m_heads;

    void                         makeAndSendNewHead(PHLMONITOR pMonitor);
    friend class COutputManagementProtocol;
};

class COutputMode {
  public:
    COutputMode(SP<CZwlrOutputModeV1> resource_, SP<Aquamarine::SOutputMode> mode_);

    bool                        good();
    SP<Aquamarine::SOutputMode> getMode();
    void                        sendAllData();

  private:
    SP<CZwlrOutputModeV1>       m_resource;
    WP<Aquamarine::SOutputMode> m_mode;

    friend class COutputHead;
    friend class COutputManagementProtocol;
};

class COutputHead {
  public:
    COutputHead(SP<CZwlrOutputHeadV1> resource_, PHLMONITOR pMonitor_);

    bool       good();
    void       sendAllData(); // this has to be separate as we need to send the head first, then set the data
    void       updateMode();
    PHLMONITOR monitor();

  private:
    SP<CZwlrOutputHeadV1>        m_resource;
    PHLMONITORREF                m_monitor;

    void                         makeAndSendNewMode(SP<Aquamarine::SOutputMode> mode);
    void                         sendCurrentMode();

    std::vector<WP<COutputMode>> m_modes;

    struct {
        CHyprSignalListener monitorDestroy;
        CHyprSignalListener monitorModeChange;
    } m_listeners;

    friend class COutputManager;
    friend class COutputManagementProtocol;
};

class COutputConfigurationHead {
  public:
    COutputConfigurationHead(SP<CZwlrOutputConfigurationHeadV1> resource_, PHLMONITOR pMonitor_);

    bool                   good();

    SWlrManagerOutputState m_state;

  private:
    SP<CZwlrOutputConfigurationHeadV1> m_resource;
    PHLMONITORREF                      m_monitor;

    friend class COutputConfiguration;
};

class COutputConfiguration {
  public:
    COutputConfiguration(SP<CZwlrOutputConfigurationV1> resource_, SP<COutputManager> owner_);

    bool good();

  private:
    SP<CZwlrOutputConfigurationV1>            m_resource;
    std::vector<WP<COutputConfigurationHead>> m_heads;
    WP<COutputManager>                        m_owner;
    WP<COutputConfiguration>                  m_self;

    bool                                      applyTestConfiguration(bool test);

    friend class COutputManagementProtocol;
    friend class COutputManager;
};

class COutputManagementProtocol : public IWaylandProtocol {
  public:
    COutputManagementProtocol(const wl_interface* iface, const int& ver, const std::string& name);

    virtual void bindManager(wl_client* client, void* data, uint32_t ver, uint32_t id);

    // doesn't have to return one
    SP<SWlrManagerSavedOutputState> getOutputStateFor(PHLMONITOR pMonitor);

    void                            sendPendingSuccessEvents();

  private:
    void destroyResource(COutputManager* resource);
    void destroyResource(COutputHead* resource);
    void destroyResource(COutputMode* resource);
    void destroyResource(COutputConfiguration* resource);
    void destroyResource(COutputConfigurationHead* resource);

    void updateAllOutputs();

    //
    std::vector<SP<COutputManager>>           m_managers;
    std::vector<SP<COutputHead>>              m_heads;
    std::vector<SP<COutputMode>>              m_modes;
    std::vector<SP<COutputConfiguration>>     m_configurations;
    std::vector<SP<COutputConfigurationHead>> m_configurationHeads;
    std::vector<WP<COutputConfiguration>>     m_pendingConfigurationSuccessEvents;

    SP<COutputHead>                           headFromResource(wl_resource* r);
    SP<COutputMode>                           modeFromResource(wl_resource* r);

    friend class COutputManager;
    friend class COutputHead;
    friend class COutputMode;
    friend class COutputConfiguration;
    friend class COutputConfigurationHead;
};

namespace PROTO {
    inline UP<COutputManagementProtocol> outputManagement;
};