#pragma once

#include <optional>
#include <vector>

#include <Unreal/UClass.hpp>

#include "UnrealWrapper.hpp"
#include "Widget.hpp"
#include "UserWidget.hpp"
#include "WrapBox.hpp"

namespace PalUIExtension::Api
{
    // ==================================================================
    // WBP_PalCharacterScrollList_C -- the end of the chain. This is the
    // widget that creates, owns and destroys the slot tiles.
    //
    //   PalBoxWidget
    //     -> WBP_BoxPalList -> WBP_BoxPalListBase -> WBP_BoxPalScrollList
    //     -> WBP_BaseCampPalList ------------------------> (same class)
    //          == THIS
    //               -> MyBlock (UWrapBox)
    //                    -> the tiles  
    // ==================================================================
    class PalCharacterScrollList : public UserWidget
    {
    public:
        static auto ClassPath() -> const TCHAR*
        {
            return STR("/Game/Pal/Blueprint/UI/CommonWidget/CommonScrollList/"
                "WBP_PalCharacterScrollList.WBP_PalCharacterScrollList_C");
        }
        static auto DebugTag() -> const TCHAR* { return STR("PalCharacterScrollList"); }

        PalCharacterScrollList() = default;
        explicit PalCharacterScrollList(UObject* Obj) : UserWidget(Obj, ClassOf<PalCharacterScrollList>(), DebugTag()) {}

        // ==============================================================
        // THE TILES
        // ==============================================================

        auto TileContainer() const -> WrapBox
        {
            UObject* O = BoundObject(STR("MyBlock"));
            return O ? WrapBox{ O } : WrapBox{};
        }

        auto Tiles() -> std::vector<UObject*>
        {
            WrapBox Box = TileContainer();
            if (!Box.IsValid()) return {};
            return Box.GetChildObjects();
        }

        auto TileClass() const -> UClass*
        {
            return PropertyValue<UClass*>(STR("slotWidgetClass")).value_or(nullptr);
        }

        auto TileClassName() const -> RC::StringType
        {
            UClass* C = TileClass();
            return C ? C->GetFullName() : RC::StringType{ STR("<null>") };
        }

        // ==============================================================
        // HOOK TARGETS       
        // ==============================================================

        static auto CreateSlotWidgetPath() -> const TCHAR*
        {
            return STR("/Game/Pal/Blueprint/UI/CommonWidget/CommonScrollList/"
                "WBP_PalCharacterScrollList.WBP_PalCharacterScrollList_C:CreateSlotWidget");
        }
        static auto AddSlotButtonToScrollListPath() -> const TCHAR*
        {
            return STR("/Game/Pal/Blueprint/UI/CommonWidget/CommonScrollList/"
                "WBP_PalCharacterScrollList.WBP_PalCharacterScrollList_C:AddSlotButtonToScrollList");
        }
        static auto BindButtonEventsPath() -> const TCHAR*
        {
            return STR("/Game/Pal/Blueprint/UI/CommonWidget/CommonScrollList/"
                "WBP_PalCharacterScrollList.WBP_PalCharacterScrollList_C:BindButtonEvents");
        }

        static auto OnUpdateSlotBindedPath() -> const TCHAR*
        {
            return STR("/Game/Pal/Blueprint/UI/CommonWidget/CommonScrollList/"
                "WBP_PalCharacterScrollList.WBP_PalCharacterScrollList_C:OnUpdateSlot_Binded");
        }
        static auto OnSlotSyncedInternalPath() -> const TCHAR*
        {
            return STR("/Game/Pal/Blueprint/UI/CommonWidget/CommonScrollList/"
                "WBP_PalCharacterScrollList.WBP_PalCharacterScrollList_C:OnSlotSynced_Internal");
        }
        static auto OnEmptySlotInternalPath() -> const TCHAR*
        {
            return STR("/Game/Pal/Blueprint/UI/CommonWidget/CommonScrollList/"
                "WBP_PalCharacterScrollList.WBP_PalCharacterScrollList_C:OnEmptySlot_Internal");
        }
        static auto AddCharacterSlotPath() -> const TCHAR*
        {
            return STR("/Game/Pal/Blueprint/UI/CommonWidget/CommonScrollList/"
                "WBP_PalCharacterScrollList.WBP_PalCharacterScrollList_C:AddCharacterSlot");
        }

        static auto ClearAllChildrenPath() -> const TCHAR*
        {
            return STR("/Game/Pal/Blueprint/UI/CommonWidget/CommonScrollList/"
                "WBP_PalCharacterScrollList.WBP_PalCharacterScrollList_C:ClearAllChildren");
        }
        static auto ClearInnerChildrenPath() -> const TCHAR*
        {
            return STR("/Game/Pal/Blueprint/UI/CommonWidget/CommonScrollList/"
                "WBP_PalCharacterScrollList.WBP_PalCharacterScrollList_C:ClearInnnerChildren");
        }

        // ---- frames --------------------------------------------------

        struct CreateSlotWidgetFrame
        {
            UObject* TargetSlot;
            UObject* createdSlotButton;
        };

        // Covers AddSlotButtonToScrollList (createdSlotButton),
        // BindButtonEvents (createdSlotButton), OnUpdateSlot_Binded
        // (SlotButton), OnSlotSynced_Internal (SelfButton),
        // OnEmptySlot_Internal (SlotButton), OnHovered_Internal /
        // OnUnhovered_Internal / OnFocused_Internal /
        // OnUnfocused_Internal (Widget), and "On Right Clicked Internal"
        // (ButtonBase). Eleven functions, one shape -- a single tile
        // pointer at 0x00. Naming it once is the honest version.
        struct TileFrame { UObject* Tile; };
        struct AddCharacterSlotFrame { UObject* TargetSlot; };

        struct TileClickFrame
        {
            UObject* Widget;     // 0x00
            uint8    PressType;  // 0x08
        };

        struct AddCharacterSlotsFrame
        {
            UObject** Data;
            int32     Num;
            int32     Max;
        };    


    protected:
        PalCharacterScrollList(UObject* Obj, UClass* Expected, const TCHAR* Tag) : UserWidget(Obj, Expected, Tag) {}
    };
}