LiveConfigTypes.h

// Copyright (c) 2026 Nicholas Arthur
// Licensed under the MIT License
#pragma once
 
#include "CoreMinimal.h"
#include "LiveConfigPropertyName.h"
#include "Profiles/LiveConfigProfile.h"
#include "LiveConfigTypes.generated.h"
 
LIVECONFIG_API DECLARE_LOG_CATEGORY_EXTERN(LogLiveConfig, Log, All);
 
UENUM(BlueprintType)
enum class ELiveConfigPropertyChangeType : uint8
{
    Name,
    Description,
    Type,
    Value,
    Tags
};
 
UENUM(BlueprintType)
enum class ELiveConfigPropertyType : uint8
{
    String,
    Int,
    Float,
    Bool,
    Struct
};
 
USTRUCT(BlueprintType)
struct LIVECONFIG_API FLiveConfigPropertyDefinition
{
    GENERATED_BODY()
 
    UPROPERTY(Config, BlueprintReadWrite, EditAnywhere, Category = "Property")
    FLiveConfigProperty PropertyName;
 
    UPROPERTY(Config, BlueprintReadWrite, EditAnywhere, Category = "Property")
    FString Description;
 
    UPROPERTY(Config, BlueprintReadWrite, EditAnywhere, Category = "Property")
    ELiveConfigPropertyType PropertyType = ELiveConfigPropertyType::String;
 
    UPROPERTY(Config, BlueprintReadWrite, EditAnywhere, Category = "Property")
    TArray<FName> Tags;
 
    UPROPERTY(Config, BlueprintReadWrite, EditAnywhere, Category = "Property")
    FString Value;
    
    bool IsValid() const;
};
 
USTRUCT()
struct FLiveConfigCache
{
    GENERATED_BODY()
    
    UPROPERTY()
    TMap<FLiveConfigProperty, float> FloatValues;
    UPROPERTY()
    TMap<FLiveConfigProperty, int32> IntValues;
    UPROPERTY()
    TMap<FLiveConfigProperty, FString> StringValues;
    UPROPERTY()
    TMap<FLiveConfigProperty, bool> BoolValues;
    
    void Reset();
    void SetValue(const FLiveConfigPropertyDefinition& InValue);
        
    template<typename T>
    T GetValue(const FLiveConfigProperty& Property) const;
 
    static void BuildConfig(const TMap<FLiveConfigProperty, FLiveConfigPropertyDefinition>& PropertyDefinitions, 
        const FLiveConfigProfile& EnvironmentProfile, const FLiveConfigProfile& ActiveProfile, FLiveConfigCache& OutCache);
};
 
template<>
inline float FLiveConfigCache::GetValue<float>(const FLiveConfigProperty& Property) const
{
    if (const float* Value = FloatValues.Find(Property))
    {
        return *Value;
    }
    
    UE_LOG(LogLiveConfig, Warning, TEXT("Failed to find float value for property: %s"), *Property.ToString());
    return 0.0f;
}
 
template<>
inline int32 FLiveConfigCache::GetValue<int32>(const FLiveConfigProperty& Property) const
{
    if (const int32* Value = IntValues.Find(Property))
    {
        return *Value;
    }
    
    UE_LOG(LogLiveConfig, Warning, TEXT("Failed to find int32 value for property: %s"), *Property.ToString());
    return 0;
}
 
template<>
inline FString FLiveConfigCache::GetValue<FString>(const FLiveConfigProperty& Property) const
{
    if (const FString* Value = StringValues.Find(Property))
    {
        return *Value;
    }
    
    UE_LOG(LogLiveConfig, Warning, TEXT("Failed to find string value for property: %s"), *Property.ToString());
    return FString();
}
 
template<>
inline bool FLiveConfigCache::GetValue<bool>(const FLiveConfigProperty& Property) const
{
    if (const bool* Value = BoolValues.Find(Property))
    {
        return *Value;
    }
    
    UE_LOG(LogLiveConfig, Warning, TEXT("Failed to find bool value for property: %s"), *Property.ToString());
    return false;
}