#pragma once

#include "CoreMinimal.h"
#include "UObject/NoExportTypes.h"
#include "Common.h"
#include "Templates/Tuple.h"
#include "AssetLookup.generated.h"

class AActor;
class UUserWidget;
class UlxLookAtWidget;
class UStaticMesh;
class USkeletalMesh;
class UAnimSequence;

UCLASS(MinimalAPI)
class UlxAssetLookup : public UObject
{
	GENERATED_BODY()

private:
    //
    // At initialization time, we scan the asset directories
    // to see what assets are present.  These maps store the
    // result of the scan.  Each entry in the map contains a
    // classname, a short name, and a path:
    //
    // <UAnimSequence, Jump> -> "/Game/AnimSequences/SEQ_Jump"
    //
    TMap<TTuple<FString, FName>, FString> AssetPaths;

private:

    void AddAssets(const TCHAR *Path, UClass *Class, const TCHAR *NamePrefix);

    static UObject *LoadAsset(const UObject *Context, UClass *Class, UClass *ChildOf, const FString &Name, bool ErrorIfNotFound);

public:
    void RebuildIndex();

    // Get a static mesh by name
    UFUNCTION(BlueprintCallable, meta = (WorldContext = "Context", ExpandEnumAsExecs="ReturnValue"), Category = "Luprex|Asset Loading")
    static ElxValidOrNotValid LoadStaticMeshAsset(
        UStaticMesh *&Result,
        const UObject *Context, const FString &Name, bool ErrorIfNotFound = false);
 
    // Get a skeletal mesh by name
    UFUNCTION(BlueprintCallable, meta = (WorldContext = "Context", ExpandEnumAsExecs="ReturnValue"), Category = "Luprex|Asset Loading")
    static ElxValidOrNotValid LoadSkeletalMeshAsset(
        USkeletalMesh *&Result,
        const UObject *Context, const FString &Name, bool ErrorIfNotFound = false);

    // Get an animation sequence by name.
    UFUNCTION(BlueprintCallable, meta = (WorldContext = "Context", ExpandEnumAsExecs="ReturnValue"), Category = "Luprex|Asset Loading")
    static ElxValidOrNotValid LoadAnimSequenceAsset(
        UAnimSequence *&Result, 
        const UObject *Context, const FString &Name, bool ErrorIfNotFound = false);

    // Get a tangible class by name
    UFUNCTION(BlueprintCallable, meta = (WorldContext = "Context", ExpandEnumAsExecs="ReturnValue"), Category = "Luprex|Asset Loading")
    static ElxValidOrNotValid LoadTangibleBlueprintAsset(
        TSubclassOf<AActor> &Result, 
        const UObject *Context, const FString &Name, bool ErrorIfNotFound = false);

    // Get a widget blueprint by name
    UFUNCTION(BlueprintCallable, meta = (WorldContext = "Context", ExpandEnumAsExecs="ReturnValue"), Category = "Luprex|Asset Loading")
    static ElxValidOrNotValid LoadUserWidgetAsset(
        TSubclassOf<UUserWidget> &Result, 
        const UObject *Context, const FString &Name, bool ErrorIfNotFound = false);

    // Get a look-at widget blueprint by name
    UFUNCTION(BlueprintCallable, meta = (WorldContext = "Context", ExpandEnumAsExecs="ReturnValue"), Category = "Luprex|Asset Loading")
    static ElxValidOrNotValid LoadLuaWidgetAsset(
        TSubclassOf<UlxLuaWidget> &Result,
        const UObject *Context, const FString &Name, bool ErrorIfNotFound = false);
};