////////////////////////////////////////////////////////////
//~ Window types

Struct(WND_W32_Window)
{
    HWND hwnd;
    Atomic32 is_ready;

    /* Window state */
    u16 previous_utf16_high_surrogate;

    /* User state */
    Arena *cmds_arena;
    struct WND_W32_CmdNode *first_cmd;
    struct WND_W32_CmdNode *last_cmd;
    u64 frame_gen;
    b32 is_forced_top;
    b32 is_fullscreen;
    RECT fullscreen_restore_rect;

    /* Window -> User */
    /* Reads outside of window thread must lock */
    TicketMutex w2u_tm;
    Arena *w2u_inputs_arena;
};

////////////////////////////////////////////////////////////
//~ Restore types

#define WND_W32_RestoreMagic 0xc4b4842a

Struct(WND_W32_RestorableData)
{
    u32 magic;

    WINDOWPLACEMENT placement;
    DWORD style;
    DWORD ex_style;

    b32 is_forced_top;

    b32 is_fullscreen;
    RECT fullscreen_restore_rect;

    b32 has_focus;

    b32 is_snapped;
    RECT snapped_screen_rect;
};

////////////////////////////////////////////////////////////
//~ Cmd types

Struct(WND_W32_CmdNode)
{
    WND_W32_CmdNode *next;
    WND_Cmd cmd;
};

////////////////////////////////////////////////////////////
//~ State types

#define WND_W32_WindowClassName L"pp_window_class"

Struct(WND_W32_SharedState)
{
    Btn vk_to_btn[256];
    WNDCLASSEXW window_class;
    WND_W32_Window window;  /* Single-window for now  */
} extern WND_W32_shared_state;

////////////////////////////////////////////////////////////
//~ Window helpers

WND_W32_Window *WND_W32_WindowFromHandle(WND_Handle handle);

////////////////////////////////////////////////////////////
//~ Initialization

JobDecl(WND_W32_ProcessMessagesForever, EmptySig);

////////////////////////////////////////////////////////////
//~ Message processing

void WND_W32_PushInput(WND_W32_Window *window, Input input);
LRESULT CALLBACK WND_W32_WindowProc(HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam);