// slang-artifact-helper.h
#ifndef SLANG_ARTIFACT_HELPER_H
#define SLANG_ARTIFACT_HELPER_H

#include "slang-artifact.h"
#include "slang-artifact-representation.h"

#include "../core/slang-com-object.h"

namespace Slang
{

class IArtifactHelper : public ICastable
{
	SLANG_COM_INTERFACE(0x882b25d7, 0xe300, 0x4b20, { 0xbe, 0xb, 0x26, 0xd2, 0x52, 0x3e, 0x70, 0x20 })

		/// Create an artifact
	virtual SLANG_NO_THROW SlangResult SLANG_MCALL createArtifact(const ArtifactDesc& desc, const char* name, IArtifact** outArtifact) = 0;
		/// Create a container with desc, and specified name. name can be passed as nullptr for no name
	virtual SLANG_NO_THROW SlangResult SLANG_MCALL createArtifactContainer(const ArtifactDesc& desc, const char* name, IArtifactContainer** outArtifactContainer) = 0;

		/// Get the parent to a kind
	virtual SLANG_NO_THROW ArtifactKind SLANG_MCALL getKindParent(ArtifactKind kind) = 0;
		/// Get the name of a kind
	virtual SLANG_NO_THROW UnownedStringSlice SLANG_MCALL getKindName(ArtifactKind kind) = 0;
		/// Returns true if kind is derived from base
	virtual SLANG_NO_THROW bool SLANG_MCALL isKindDerivedFrom(ArtifactKind kind, ArtifactKind base) = 0;

		/// Get the parent payload for payload
	virtual SLANG_NO_THROW ArtifactPayload SLANG_MCALL getPayloadParent(ArtifactPayload payload) = 0;
		/// Get the payload name text
	virtual SLANG_NO_THROW UnownedStringSlice SLANG_MCALL getPayloadName(ArtifactPayload payload) = 0;
		/// Returns true if payload is derived from base
	virtual SLANG_NO_THROW bool SLANG_MCALL isPayloadDerivedFrom(ArtifactPayload payload, ArtifactPayload base) = 0;

		/// Get the parent type of a style
	virtual SLANG_NO_THROW ArtifactStyle SLANG_MCALL getStyleParent(ArtifactStyle style) = 0;
		/// Get text name for a style
	virtual SLANG_NO_THROW UnownedStringSlice SLANG_MCALL getStyleName(ArtifactStyle style) = 0;
		/// Returns true if style is derived from base
	virtual SLANG_NO_THROW bool SLANG_MCALL isStyleDerivedFrom(ArtifactStyle style, ArtifactStyle base) = 0;

		/// Create a lock file, the path of which can be used to generate other temporary files
	virtual SLANG_NO_THROW SlangResult SLANG_MCALL createLockFile(const CharSlice& nameBase, IOSFileArtifactRepresentation** outLockFile) = 0;

		/// Given a desc and a basePath returns a suitable name
	virtual SLANG_NO_THROW SlangResult SLANG_MCALL calcArtifactDescPath(const ArtifactDesc& desc, const char* basePath, ISlangBlob** outPath) = 0;

		/// Given an artifact and a basePath returns a suitable name
	virtual SLANG_NO_THROW SlangResult SLANG_MCALL calcArtifactPath(IArtifact* , const char* basePath, ISlangBlob** outPath) = 0;

		/// Given a compile target return the equivalent desc
	virtual SLANG_NO_THROW ArtifactDesc SLANG_MCALL makeDescForCompileTarget(SlangCompileTarget target) = 0;

		/// Given an interface returns as a castable interface. This might just cast unk into ICastable, or wrap it such that it uses the castable interface
	virtual SLANG_NO_THROW void SLANG_MCALL getCastable(ISlangUnknown* unk, ICastable** outCastable) = 0;

		/// Create a file rep
	virtual SLANG_NO_THROW SlangResult SLANG_MCALL createOSFileArtifactRepresentation(
		IOSFileArtifactRepresentation::Kind kind, const CharSlice& path, IOSFileArtifactRepresentation* lockFile, IOSFileArtifactRepresentation** outRep) = 0;

	virtual SLANG_NO_THROW SlangResult SLANG_MCALL createExtFileArtifactRepresentation(const CharSlice& path, ISlangFileSystemExt* system, IExtFileArtifactRepresentation** outRep) = 0;

		/// Create an empty ICastableList
	virtual SLANG_NO_THROW SlangResult SLANG_MCALL createCastableList(const Guid& guid, ICastableList** outList) = 0;


	virtual SLANG_NO_THROW SlangResult SLANG_MCALL createOSFileArtifact(const ArtifactDesc& desc, const CharSlice& slice, IArtifact** outArtifact) = 0;
};

class DefaultArtifactHelper : public IArtifactHelper
{
public:
	// ISlangUnknown
	SLANG_NO_THROW uint32_t SLANG_MCALL addRef() SLANG_OVERRIDE { return 1; }
	SLANG_NO_THROW uint32_t SLANG_MCALL release() SLANG_OVERRIDE { return 1; }
	SLANG_NO_THROW SlangResult SLANG_MCALL queryInterface(SlangUUID const& uuid, void** outObject) SLANG_OVERRIDE;

	// ICastable
	SLANG_NO_THROW void* SLANG_MCALL castAs(const Guid& guid) SLANG_OVERRIDE;

	// IArtifactHelper
	virtual SLANG_NO_THROW SlangResult SLANG_MCALL createArtifact(const ArtifactDesc& desc, const char* name, IArtifact** outArtifact) SLANG_OVERRIDE;
	virtual SLANG_NO_THROW SlangResult SLANG_MCALL createArtifactContainer(const ArtifactDesc& desc, const char* name, IArtifactContainer** outArtifactContainer) SLANG_OVERRIDE;

	virtual SLANG_NO_THROW ArtifactKind SLANG_MCALL getKindParent(ArtifactKind kind) SLANG_OVERRIDE;
	virtual SLANG_NO_THROW UnownedStringSlice SLANG_MCALL getKindName(ArtifactKind kind) SLANG_OVERRIDE;
	virtual SLANG_NO_THROW bool SLANG_MCALL isKindDerivedFrom(ArtifactKind kind, ArtifactKind base) SLANG_OVERRIDE;

	virtual SLANG_NO_THROW ArtifactPayload SLANG_MCALL getPayloadParent(ArtifactPayload payload) SLANG_OVERRIDE;
	virtual SLANG_NO_THROW UnownedStringSlice SLANG_MCALL getPayloadName(ArtifactPayload payload) SLANG_OVERRIDE;
	virtual SLANG_NO_THROW bool SLANG_MCALL isPayloadDerivedFrom(ArtifactPayload payload, ArtifactPayload base) SLANG_OVERRIDE;

	virtual SLANG_NO_THROW ArtifactStyle SLANG_MCALL getStyleParent(ArtifactStyle style) SLANG_OVERRIDE;
	virtual SLANG_NO_THROW UnownedStringSlice SLANG_MCALL getStyleName(ArtifactStyle style) SLANG_OVERRIDE;
	virtual SLANG_NO_THROW bool SLANG_MCALL isStyleDerivedFrom(ArtifactStyle style, ArtifactStyle base) SLANG_OVERRIDE;

	virtual SLANG_NO_THROW SlangResult SLANG_MCALL createLockFile(const CharSlice& nameBase, IOSFileArtifactRepresentation** outLockFile) SLANG_OVERRIDE;

	virtual SLANG_NO_THROW SlangResult SLANG_MCALL calcArtifactDescPath(const ArtifactDesc& desc, const char* basePath, ISlangBlob** outPath) SLANG_OVERRIDE;

	virtual SLANG_NO_THROW SlangResult SLANG_MCALL calcArtifactPath(IArtifact*, const char* basePath, ISlangBlob** outPath) SLANG_OVERRIDE;

	virtual SLANG_NO_THROW ArtifactDesc SLANG_MCALL makeDescForCompileTarget(SlangCompileTarget target) SLANG_OVERRIDE;

	virtual SLANG_NO_THROW void SLANG_MCALL getCastable(ISlangUnknown* unk, ICastable** outCastable) SLANG_OVERRIDE;

	virtual SLANG_NO_THROW SlangResult SLANG_MCALL createCastableList(const Guid& guid, ICastableList** outList) SLANG_OVERRIDE;

	virtual SLANG_NO_THROW SlangResult SLANG_MCALL createOSFileArtifactRepresentation(
		IOSFileArtifactRepresentation::Kind kind, const CharSlice& path, IOSFileArtifactRepresentation* lockFile, IOSFileArtifactRepresentation** outRep) SLANG_OVERRIDE;

	virtual SLANG_NO_THROW SlangResult SLANG_MCALL createExtFileArtifactRepresentation(const CharSlice& path, ISlangFileSystemExt* system, IExtFileArtifactRepresentation** outRep) SLANG_OVERRIDE;

	virtual SLANG_NO_THROW SlangResult SLANG_MCALL createOSFileArtifact(const ArtifactDesc& desc, const CharSlice& slice, IArtifact** outArtifact) SLANG_OVERRIDE;

	static IArtifactHelper* getSingleton() { return &g_singleton; }

protected:
	void* getInterface(const Guid& guid);
	void* getObject(const Guid& guid);

	static DefaultArtifactHelper g_singleton;
};

} // namespace Slang

#endif