// Copyright (c) 2012-2023 Wojciech Figat. All rights reserved.

#pragma once

#include "Engine/Core/Collections/Dictionary.h"
#include "MTypes.h"

/// <summary>
/// Domain separates multiple processes within one executed CLR environment.
/// </summary>
/// <remarks>
/// At once you can execute methods, get instances etc, only from on Domain at the time.
/// If you want to execute any code that given domain contains, you need to switch context, and dispatch current thread to CLR environment.
/// </remarks>
class FLAXENGINE_API MDomain
{
    friend MCore;
    friend MAssembly;

public:
    typedef Dictionary<StringAnsi, MAssembly*> AssembliesDictionary;

private:
#if USE_MONO
    MonoDomain* _monoDomain;
#endif
    StringAnsi _domainName;
    AssembliesDictionary _assemblies;

public:
    MDomain(const StringAnsi& domainName)
        : _domainName(domainName)
    {
    }

public:
#if USE_MONO
    /// <summary>
    /// Gets native domain class.
    /// </summary>
    FORCE_INLINE MonoDomain* GetNative() const
    {
        return _monoDomain;
    }
#endif

    /// <summary>
    /// Gets current domain name
    /// </summary>
    FORCE_INLINE const StringAnsi& GetName() const
    {
        return _domainName;
    }

    /// <summary>
    /// Gets the current domain assemblies.
    /// </summary>
    FORCE_INLINE const AssembliesDictionary& GetAssemblies() const
    {
        return _assemblies;
    }

public:
    /// <summary>
    /// Attaches current CLR domain calls to the current thread.
    /// </summary>
    void Dispatch() const;

    /// <summary>
    /// Sets currently using domain.
    /// </summary>
    /// <returns>True if succeed in settings, false if failed.</returns>
    bool SetCurrentDomain(bool force = false);
};