#pragma once

#include "CoreMinimal.h"
#include "Subsystems/GameInstanceSubsystem.h"
#include "SkillTreeTypes.h"
#include "SkillTreeSubsystem.generated.h"

// Forward declarations
class USkillTreeComponent;

UCLASS()
class UTAD_UI_API USkillTreeSubsystem : public UGameInstanceSubsystem
{
    GENERATED_BODY()

public:
    // Subsystem interface
    virtual void Initialize(FSubsystemCollectionBase& Collection) override;
    virtual void Deinitialize() override;

    // Get the singleton instance
    UFUNCTION(BlueprintPure, Category = "Skill Tree", meta = (DisplayName = "Get Skill Tree Manager"))
    static USkillTreeSubsystem* GetSkillTreeManager(const UObject* WorldContextObject);

    // Register and unregister player skill tree components
    UFUNCTION(BlueprintCallable, Category = "Skill Tree")
    void RegisterPlayerSkillTree(USkillTreeComponent* SkillTreeComponent);

    UFUNCTION(BlueprintCallable, Category = "Skill Tree")
    void UnregisterPlayerSkillTree();

    // Get the player's skill tree component
    UFUNCTION(BlueprintPure, Category = "Skill Tree")
    USkillTreeComponent* GetPlayerSkillTree() const { return PlayerSkillTreeComponent; }

    // Global skill tree settings
    UFUNCTION(BlueprintPure, Category = "Skill Tree Settings")
    int32 GetMaxSkillPoints() const { return MaxSkillPoints; }

    UFUNCTION(BlueprintPure, Category = "Skill Tree Settings")
    int32 GetSkillPointsPerLevel() const { return SkillPointsPerLevel; }

    UFUNCTION(BlueprintPure, Category = "Skill Tree Settings")
    int32 GetRespecCost() const { return RespecCost; }

protected:
    // Reference to the player's skill tree component
    UPROPERTY()
    USkillTreeComponent* PlayerSkillTreeComponent;

    // Global settings
    UPROPERTY(EditDefaultsOnly, BlueprintReadOnly, Category = "Settings")
    int32 MaxSkillPoints = 100;

    UPROPERTY(EditDefaultsOnly, BlueprintReadOnly, Category = "Settings")
    int32 SkillPointsPerLevel = 1;

    UPROPERTY(EditDefaultsOnly, BlueprintReadOnly, Category = "Settings")
    int32 RespecCost = 100;  // Cost in gold/currency to reset skills

    // Data table for skills (can be overridden in Blueprint)
    UPROPERTY(EditDefaultsOnly, BlueprintReadOnly, Category = "Settings")
    class UDataTable* DefaultSkillDataTable;
};