#pragma once

#include "CoreMinimal.h"
#include "Kismet/BlueprintFunctionLibrary.h"
#include "MCPVoxelGraphLibrary.generated.h"

class UEdGraph;

UCLASS()
class UEBLUEPRINTMCPEDITOR_API UMCPVoxelGraphLibrary : public UBlueprintFunctionLibrary
{
    GENERATED_BODY()

public:
    UFUNCTION(BlueprintCallable, Category = "MCP|VoxelGraph")
    static bool IsVoxelGraphAsset(UObject* Asset);

    UFUNCTION(BlueprintCallable, Category = "MCP|VoxelGraph")
    static FString ListTerminalGraphsJson(UObject* Asset);

    UFUNCTION(BlueprintCallable, Category = "MCP|VoxelGraph")
    static UEdGraph* FindTerminalEdGraph(UObject* Asset, const FString& Terminal);

    UFUNCTION(BlueprintCallable, Category = "MCP|VoxelGraph")
    static FString DumpTerminalGraphJson(UObject* Asset, const FString& Terminal);

    UFUNCTION(BlueprintCallable, Category = "MCP|VoxelGraph")
    static FString GetSelectedNodesJson(UObject* Asset, const FString& Terminal);

    UFUNCTION(BlueprintCallable, Category = "MCP|VoxelGraph")
    static FString SpawnCommentNode(UEdGraph* Graph, FVector2D Position, FVector2D Size, const FString& Comment, FLinearColor Color);

    // Returns a JSON catalogue of every spawnable Voxel node (struct nodes + function-library nodes).
    // Filter is an optional case-insensitive substring matched against id / display name / category.
    UFUNCTION(BlueprintCallable, Category = "MCP|VoxelGraph")
    static FString ListNodeTypesJson(const FString& Filter, int32 Limit);

    // Spawns a functional Voxel node (UVoxelGraphNode_Struct) identified by NodeId
    // (struct name, struct path, display name, or "Library.Function" for function nodes).
    // Returns the new node GUID as string, or empty on failure.
    UFUNCTION(BlueprintCallable, Category = "MCP|VoxelGraph")
    static FString SpawnStructNode(UEdGraph* Graph, const FString& NodeId, FVector2D Position);

    // Registers a graph property and returns its new GUID as JSON {ok, guid, name, type}.
    // Kind: "parameter" (graph parameter), "input"/"output" (function in/out), "local" (local variable).
    // TypeStr: float|double|int|bool|vector2d|vector|color|name (defaults to float).
    UFUNCTION(BlueprintCallable, Category = "MCP|VoxelGraph")
    static FString AddGraphPropertyJson(UObject* Asset, const FString& Terminal, const FString& Kind, const FString& Name, const FString& TypeStr, const FString& Category);

    // Lists graph properties of the given Kind as JSON {ok, properties:[{guid,name,type,category}]}.
    UFUNCTION(BlueprintCallable, Category = "MCP|VoxelGraph")
    static FString ListGraphPropertiesJson(UObject* Asset, const FString& Terminal, const FString& Kind);

    // Spawns a usage node for an existing property (Ref = guid or name). bDeclaration only matters
    // for Kind "local" (declaration vs usage). Returns the new node GUID, or empty on failure.
    UFUNCTION(BlueprintCallable, Category = "MCP|VoxelGraph")
    static FString SpawnPropertyNode(UEdGraph* Graph, const FString& Kind, const FString& Ref, FVector2D Position, bool bDeclaration);

    // Spawns a "Call Function" node for a function terminal graph (FunctionRef = terminal guid or name).
    // Returns the new node GUID, or empty on failure.
    UFUNCTION(BlueprintCallable, Category = "MCP|VoxelGraph")
    static FString SpawnCallFunctionNode(UEdGraph* Graph, const FString& FunctionRef, FVector2D Position);

    UFUNCTION(BlueprintCallable, Category = "MCP|VoxelGraph")
    static bool NotifyGraphChanged(UEdGraph* Graph, bool bCompile);

    UFUNCTION(BlueprintCallable, Category = "MCP|VoxelGraph")
    static bool OpenVoxelGraphAsset(UObject* Asset);
};