skins.h

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/* (c) Magnus Auvinen. See licence.txt in the root of the distribution for more information. */
/* If you are missing that file, acquire a complete release at teeworlds.com.                */
#ifndef GAME_CLIENT_COMPONENTS_SKINS_H
#define GAME_CLIENT_COMPONENTS_SKINS_H
 
#include <base/lock.h>
 
#include <engine/shared/config.h>
#include <engine/shared/jobs.h>
 
#include <game/client/component.h>
#include <game/client/skin.h>
 
#include <chrono>
#include <list>
#include <optional>
#include <set>
#include <string_view>
#include <unordered_map>
#include <utility>
 
class CHttpRequest;
 
class CSkins : public CComponent
{
private:
    class CSkinLoadData
    {
    public:
        CImageInfo m_Info;
        CImageInfo m_InfoGrayscale;
        CSkin::CSkinMetrics m_Metrics;
        ColorRGBA m_BloodColor;
    };

    class CAbstractSkinLoadJob : public IJob
    {
    public:
        CAbstractSkinLoadJob(CSkins *pSkins, const char *pName);
        ~CAbstractSkinLoadJob() override;
 
        CSkinLoadData m_Data;
        bool m_NotFound = false;
 
    protected:
        CSkins *m_pSkins;
        char m_aName[MAX_SKIN_LENGTH];
    };
 
public:
    class CSkinContainer
    {
        friend class CSkins;
 
    public:
        enum class EType
        {
            LOCAL,
            DOWNLOAD,
        };
 
        enum class EState
        {
            UNLOADED,
            PENDING,
            LOADING,
            LOADED,
            ERROR,
            NOT_FOUND,
        };
 
        CSkinContainer(CSkinContainer &&Other) = default;
        CSkinContainer(CSkins *pSkins, const char *pName, EType Type, int StorageType);
        ~CSkinContainer();
 
        bool operator<(const CSkinContainer &Other) const;
        CSkinContainer &operator=(CSkinContainer &&Other) = default;
 
        const char *Name() const { return m_aName; }
        EType Type() const { return m_Type; }
        int StorageType() const { return m_StorageType; }
        bool IsVanilla() const { return m_Vanilla; }
        bool IsSpecial() const { return m_Special; }
        bool IsAlwaysLoaded() const { return m_AlwaysLoaded; }
        EState State() const { return m_State; }
        const std::unique_ptr<CSkin> &Skin() const { return m_pSkin; }

        void RequestLoad();
 
    private:
        CSkins *m_pSkins;
        char m_aName[MAX_SKIN_LENGTH];
        EType m_Type;
        int m_StorageType;
        bool m_Vanilla;
        bool m_Special;
        bool m_AlwaysLoaded;
 
        EState m_State = EState::UNLOADED;
        std::unique_ptr<CSkin> m_pSkin = nullptr;
        std::shared_ptr<CAbstractSkinLoadJob> m_pLoadJob = nullptr;

        std::optional<std::chrono::nanoseconds> m_FirstLoadRequest;
        std::optional<std::chrono::nanoseconds> m_LastLoadRequest;
        std::optional<std::list<std::string_view>::iterator> m_UsageEntryIterator;
 
        EState DetermineInitialState() const;
        void SetState(EState State);
    };

    class CSkinListEntry
    {
    public:
        CSkinListEntry() :
            m_pSkinContainer(nullptr),
            m_Favorite(false) {}
        CSkinListEntry(CSkinContainer *pSkinContainer, bool Favorite, bool SelectedMain, bool SelectedDummy, std::optional<std::pair<int, int>> NameMatch) :
            m_pSkinContainer(pSkinContainer),
            m_Favorite(Favorite),
            m_SelectedMain(SelectedMain),
            m_SelectedDummy(SelectedDummy),
            m_NameMatch(NameMatch) {}
 
        bool operator<(const CSkinListEntry &Other) const;
 
        const CSkinContainer *SkinContainer() const { return m_pSkinContainer; }
        bool IsFavorite() const { return m_Favorite; }
        bool IsSelectedMain() const { return m_SelectedMain; }
        bool IsSelectedDummy() const { return m_SelectedDummy; }
        const std::optional<std::pair<int, int>> &NameMatch() const { return m_NameMatch; }
 
        const void *ListItemId() const { return &m_ListItemId; }
        const void *FavoriteButtonId() const { return &m_FavoriteButtonId; }
        const void *ErrorTooltipId() const { return &m_ErrorTooltipId; }

        void RequestLoad();
 
    private:
        CSkinContainer *m_pSkinContainer;
        bool m_Favorite;
        bool m_SelectedMain;
        bool m_SelectedDummy;
        std::optional<std::pair<int, int>> m_NameMatch;
        char m_ListItemId;
        char m_FavoriteButtonId;
        char m_ErrorTooltipId;
    };
 
    class CSkinList
    {
        friend class CSkins;
 
    public:
        std::vector<CSkinListEntry> &Skins() { return m_vSkins; }
        int UnfilteredCount() const { return m_UnfilteredCount; }
        void ForceRefresh() { m_NeedsUpdate = true; }
 
    private:
        std::vector<CSkinListEntry> m_vSkins;
        int m_UnfilteredCount;
        bool m_NeedsUpdate = true;
    };
 
    class CSkinLoadingStats
    {
    public:
        size_t m_NumUnloaded = 0;
        size_t m_NumPending = 0;
        size_t m_NumLoading = 0;
        size_t m_NumLoaded = 0;
        size_t m_NumError = 0;
        size_t m_NumNotFound = 0;
    };
 
    CSkins();
 
    typedef std::function<void()> TSkinLoadedCallback;
 
    int Sizeof() const override { return sizeof(*this); }
    void OnConsoleInit() override;
    void OnInit() override;
    void OnShutdown() override;
    void OnUpdate() override;
 
    void RefreshEventSkins();
    void Refresh(TSkinLoadedCallback &&SkinLoadedCallback);
    CSkinLoadingStats LoadingStats() const;
    CSkinList &SkinList();
 
    const CSkinContainer *FindContainerOrNullptr(const char *pName);
    const CSkin *FindOrNullptr(const char *pName);
    const CSkin *Find(const char *pName);
 
    void AddFavorite(const char *pName);
    void RemoveFavorite(const char *pName);
    bool IsFavorite(const char *pName) const;
 
    void RandomizeSkin(int Dummy);
 
    const char *SkinPrefix() const;
 
    static bool IsSpecialSkin(const char *pName);
 
private:
    static bool IsVanillaSkin(const char *pName);

    constexpr static const char *VANILLA_SKINS[] = {"bluekitty", "bluestripe", "brownbear",
        "cammo", "cammostripes", "coala", "default", "limekitty",
        "pinky", "redbopp", "redstripe", "saddo", "toptri",
        "twinbop", "twintri", "warpaint", "x_ninja", "x_spec"};
 
    class CSkinLoadJob : public CAbstractSkinLoadJob
    {
    public:
        CSkinLoadJob(CSkins *pSkins, const char *pName, int StorageType);
 
    protected:
        void Run() override;
 
    private:
        int m_StorageType;
    };
 
    class CSkinDownloadJob : public CAbstractSkinLoadJob
    {
    public:
        CSkinDownloadJob(CSkins *pSkins, const char *pName);
 
        bool Abort() override REQUIRES(!m_Lock);
 
    protected:
        void Run() override REQUIRES(!m_Lock);
 
    private:
        CLock m_Lock;
        std::shared_ptr<CHttpRequest> m_pGetRequest GUARDED_BY(m_Lock);
    };
 
    std::unordered_map<std::string_view, std::unique_ptr<CSkinContainer>> m_Skins;
    std::optional<std::chrono::nanoseconds> m_ContainerUpdateTime;
    std::list<std::string_view> m_SkinsUsageList;
 
    CSkinList m_SkinList;
    std::set<std::string> m_Favorites;
 
    CSkin m_PlaceholderSkin;
    char m_aEventSkinPrefix[MAX_SKIN_LENGTH];
 
    bool LoadSkinData(const char *pName, CSkinLoadData &Data) const;
    void LoadSkinFinish(CSkinContainer *pSkinContainer, const CSkinLoadData &Data);
    void LoadSkinDirect(const char *pName);
    const CSkinContainer *FindContainerImpl(const char *pName);
    static int SkinScan(const char *pName, int IsDir, int StorageType, void *pUser);
 
    void UpdateUnloadSkins(CSkinLoadingStats &Stats);
    void UpdateStartLoading(CSkinLoadingStats &Stats);
    void UpdateFinishLoading(CSkinLoadingStats &Stats, std::chrono::nanoseconds StartTime, std::chrono::nanoseconds MaxTime);
 
    static void ConAddFavoriteSkin(IConsole::IResult *pResult, void *pUserData);
    static void ConRemFavoriteSkin(IConsole::IResult *pResult, void *pUserData);
    static void ConfigSaveCallback(IConfigManager *pConfigManager, void *pUserData);
    void OnConfigSave(IConfigManager *pConfigManager);
    static void ConchainRefreshSkinList(IConsole::IResult *pResult, void *pUserData, IConsole::FCommandCallback pfnCallback, void *pCallbackUserData);
};
#endif