//====== Copyright 1996-2013, Valve Corporation, All rights reserved. =======
//
// Purpose: interface to steam ugc
//
//=============================================================================

#ifndef ISTEAMUGC_H
#define ISTEAMUGC_H
#ifdef _WIN32
#pragma once
#endif

#include "isteamclient.h"

// callbacks
#if defined( VALVE_CALLBACK_PACK_SMALL )
#pragma pack( push, 4 )
#elif defined( VALVE_CALLBACK_PACK_LARGE )
#pragma pack( push, 8 )
#else
#error isteamclient.h must be included
#endif 


typedef uint64 UGCQueryHandle_t;
typedef uint64 UGCUpdateHandle_t;


const UGCQueryHandle_t k_UGCQueryHandleInvalid = 0xffffffffffffffffull;
const UGCUpdateHandle_t k_UGCUpdateHandleInvalid = 0xffffffffffffffffull;


// Matching UGC types for queries
enum EUGCMatchingUGCType
{
	k_EUGCMatchingUGCType_Items				 = 0,		// both mtx items and ready-to-use items
	k_EUGCMatchingUGCType_Items_Mtx			 = 1,
	k_EUGCMatchingUGCType_Items_ReadyToUse	 = 2,
	k_EUGCMatchingUGCType_Collections		 = 3,
	k_EUGCMatchingUGCType_Artwork			 = 4,
	k_EUGCMatchingUGCType_Videos			 = 5,
	k_EUGCMatchingUGCType_Screenshots		 = 6,
	k_EUGCMatchingUGCType_AllGuides			 = 7,		// both web guides and integrated guides
	k_EUGCMatchingUGCType_WebGuides			 = 8,
	k_EUGCMatchingUGCType_IntegratedGuides	 = 9,
	k_EUGCMatchingUGCType_UsableInGame		 = 10,		// ready-to-use items and integrated guides
	k_EUGCMatchingUGCType_ControllerBindings = 11,
	k_EUGCMatchingUGCType_GameManagedItems	 = 12,		// game managed items (not managed by users)
	k_EUGCMatchingUGCType_All				 = ~0,		// return everything
};

// Different lists of published UGC for a user.
// If the current logged in user is different than the specified user, then some options may not be allowed.
enum EUserUGCList
{
	k_EUserUGCList_Published,
	k_EUserUGCList_VotedOn,
	k_EUserUGCList_VotedUp,
	k_EUserUGCList_VotedDown,
	k_EUserUGCList_WillVoteLater,
	k_EUserUGCList_Favorited,
	k_EUserUGCList_Subscribed,
	k_EUserUGCList_UsedOrPlayed,
	k_EUserUGCList_Followed,
};

// Sort order for user published UGC lists (defaults to creation order descending)
enum EUserUGCListSortOrder
{
	k_EUserUGCListSortOrder_CreationOrderDesc,
	k_EUserUGCListSortOrder_CreationOrderAsc,
	k_EUserUGCListSortOrder_TitleAsc,
	k_EUserUGCListSortOrder_LastUpdatedDesc,
	k_EUserUGCListSortOrder_SubscriptionDateDesc,
	k_EUserUGCListSortOrder_VoteScoreDesc,
	k_EUserUGCListSortOrder_ForModeration,
};

// Combination of sorting and filtering for queries across all UGC
enum EUGCQuery
{
	k_EUGCQuery_RankedByVote								  = 0,
	k_EUGCQuery_RankedByPublicationDate						  = 1,
	k_EUGCQuery_AcceptedForGameRankedByAcceptanceDate		  = 2,
	k_EUGCQuery_RankedByTrend								  = 3,
	k_EUGCQuery_FavoritedByFriendsRankedByPublicationDate	  = 4,
	k_EUGCQuery_CreatedByFriendsRankedByPublicationDate		  = 5,
	k_EUGCQuery_RankedByNumTimesReported					  = 6,
	k_EUGCQuery_CreatedByFollowedUsersRankedByPublicationDate = 7,
	k_EUGCQuery_NotYetRated									  = 8,
	k_EUGCQuery_RankedByTotalVotesAsc						  = 9,
	k_EUGCQuery_RankedByVotesUp								  = 10,
	k_EUGCQuery_RankedByTextSearch							  = 11,
	k_EUGCQuery_RankedByTotalUniqueSubscriptions			  = 12,
};

enum EItemUpdateStatus
{
	k_EItemUpdateStatusInvalid 				= 0, // The item update handle was invalid, job might be finished, listen too SubmitItemUpdateResult_t
	k_EItemUpdateStatusPreparingConfig 		= 1, // The item update is processing configuration data
	k_EItemUpdateStatusPreparingContent		= 2, // The item update is reading and processing content files
	k_EItemUpdateStatusUploadingContent		= 3, // The item update is uploading content changes to Steam
	k_EItemUpdateStatusUploadingPreviewFile	= 4, // The item update is uploading new preview file image
	k_EItemUpdateStatusCommittingChanges	= 5  // The item update is committing all changes
};

enum EItemState
{
	k_EItemStateNone			= 0,	// item not tracked on client
	k_EItemStateSubscribed		= 1,	// current user is subscribed to this item. Not just cached.
	k_EItemStateLegacyItem		= 2,	// item was created with ISteamRemoteStorage
	k_EItemStateInstalled		= 4,	// item is installed and usable (but maybe out of date)
	k_EItemStateNeedsUpdate		= 8,	// items needs an update. Either because it's not installed yet or creator updated content
	k_EItemStateDownloading		= 16,	// item update is currently downloading
	k_EItemStateDownloadPending	= 32,	// DownloadItem() was called for this item, content isn't available until DownloadItemResult_t is fired
};

enum EItemStatistic
{
	k_EItemStatistic_NumSubscriptions		= 0,
	k_EItemStatistic_NumFavorites			= 1,
	k_EItemStatistic_NumFollowers			= 2,
	k_EItemStatistic_NumUniqueSubscriptions = 3,
	k_EItemStatistic_NumUniqueFavorites		= 4,
	k_EItemStatistic_NumUniqueFollowers		= 5,
	k_EItemStatistic_NumUniqueWebsiteViews	= 6,
	k_EItemStatistic_ReportScore			= 7,
};

enum EItemPreviewType
{
	k_EItemPreviewType_Image				= 0,
	k_EItemPreviewType_YouTubeVideo			= 1,
	k_EItemPreviewType_Sketchfab			= 2,
	k_EItemPreviewType_ReservedMax			= 255,	// you can specify your own types above this value
};

const uint32 kNumUGCResultsPerPage = 50;
const uint32 k_cchDeveloperMetadataMax = 5000;

// Details for a single published file/UGC
struct SteamUGCDetails_t
{
	PublishedFileId_t m_nPublishedFileId;
	EResult m_eResult;												// The result of the operation.	
	EWorkshopFileType m_eFileType;									// Type of the file
	AppId_t m_nCreatorAppID;										// ID of the app that created this file.
	AppId_t m_nConsumerAppID;										// ID of the app that will consume this file.
	char m_rgchTitle[k_cchPublishedDocumentTitleMax];				// title of document
	char m_rgchDescription[k_cchPublishedDocumentDescriptionMax];	// description of document
	uint64 m_ulSteamIDOwner;										// Steam ID of the user who created this content.
	uint32 m_rtimeCreated;											// time when the published file was created
	uint32 m_rtimeUpdated;											// time when the published file was last updated
	uint32 m_rtimeAddedToUserList;									// time when the user added the published file to their list (not always applicable)
	ERemoteStoragePublishedFileVisibility m_eVisibility;			// visibility
	bool m_bBanned;													// whether the file was banned
	bool m_bAcceptedForUse;											// developer has specifically flagged this item as accepted in the Workshop
	bool m_bTagsTruncated;											// whether the list of tags was too long to be returned in the provided buffer
	char m_rgchTags[k_cchTagListMax];								// comma separated list of all tags associated with this file	
	// file/url information
	UGCHandle_t m_hFile;											// The handle of the primary file
	UGCHandle_t m_hPreviewFile;										// The handle of the preview file
	char m_pchFileName[k_cchFilenameMax];							// The cloud filename of the primary file
	int32 m_nFileSize;												// Size of the primary file
	int32 m_nPreviewFileSize;										// Size of the preview file
	char m_rgchURL[k_cchPublishedFileURLMax];						// URL (for a video or a website)
	// voting information
	uint32 m_unVotesUp;												// number of votes up
	uint32 m_unVotesDown;											// number of votes down
	float m_flScore;												// calculated score
	// collection details
	uint32 m_unNumChildren;							
};

//-----------------------------------------------------------------------------
// Purpose: Steam UGC support API
//-----------------------------------------------------------------------------
class ISteamUGC
{
public:

	// Query UGC associated with a user. Creator app id or consumer app id must be valid and be set to the current running app. unPage should start at 1.
	virtual UGCQueryHandle_t CreateQueryUserUGCRequest( AccountID_t unAccountID, EUserUGCList eListType, EUGCMatchingUGCType eMatchingUGCType, EUserUGCListSortOrder eSortOrder, AppId_t nCreatorAppID, AppId_t nConsumerAppID, uint32 unPage ) = 0;

	// Query for all matching UGC. Creator app id or consumer app id must be valid and be set to the current running app. unPage should start at 1.
	virtual UGCQueryHandle_t CreateQueryAllUGCRequest( EUGCQuery eQueryType, EUGCMatchingUGCType eMatchingeMatchingUGCTypeFileType, AppId_t nCreatorAppID, AppId_t nConsumerAppID, uint32 unPage ) = 0;

	// Query for the details of the given published file ids (the RequestUGCDetails call is deprecated and replaced with this)
	virtual UGCQueryHandle_t CreateQueryUGCDetailsRequest( PublishedFileId_t *pvecPublishedFileID, uint32 unNumPublishedFileIDs ) = 0;

	// Send the query to Steam
	CALL_RESULT( SteamUGCQueryCompleted_t )
	virtual SteamAPICall_t SendQueryUGCRequest( UGCQueryHandle_t handle ) = 0;

	// Retrieve an individual result after receiving the callback for querying UGC
	virtual bool GetQueryUGCResult( UGCQueryHandle_t handle, uint32 index, SteamUGCDetails_t *pDetails ) = 0;
	virtual bool GetQueryUGCPreviewURL( UGCQueryHandle_t handle, uint32 index, OUT_STRING_COUNT(cchURLSize) char *pchURL, uint32 cchURLSize ) = 0;
	virtual bool GetQueryUGCMetadata( UGCQueryHandle_t handle, uint32 index, OUT_STRING_COUNT(cchMetadatasize) char *pchMetadata, uint32 cchMetadatasize ) = 0;
	virtual bool GetQueryUGCChildren( UGCQueryHandle_t handle, uint32 index, PublishedFileId_t* pvecPublishedFileID, uint32 cMaxEntries ) = 0;
	virtual bool GetQueryUGCStatistic( UGCQueryHandle_t handle, uint32 index, EItemStatistic eStatType, uint32 *pStatValue ) = 0;
	virtual uint32 GetQueryUGCNumAdditionalPreviews( UGCQueryHandle_t handle, uint32 index ) = 0;
	virtual bool GetQueryUGCAdditionalPreview( UGCQueryHandle_t handle, uint32 index, uint32 previewIndex, OUT_STRING_COUNT(cchURLSize) char *pchURLOrVideoID, uint32 cchURLSize, OUT_STRING_COUNT(cchURLSize) char *pchOriginalFileName, uint32 cchOriginalFileNameSize, EItemPreviewType *pPreviewType ) = 0;
	virtual uint32 GetQueryUGCNumKeyValueTags( UGCQueryHandle_t handle, uint32 index ) = 0;
	virtual bool GetQueryUGCKeyValueTag( UGCQueryHandle_t handle, uint32 index, uint32 keyValueTagIndex, OUT_STRING_COUNT(cchKeySize) char *pchKey, uint32 cchKeySize, OUT_STRING_COUNT(cchValueSize) char *pchValue, uint32 cchValueSize ) = 0;

	// Release the request to free up memory, after retrieving results
	virtual bool ReleaseQueryUGCRequest( UGCQueryHandle_t handle ) = 0;

	// Options to set for querying UGC
	virtual bool AddRequiredTag( UGCQueryHandle_t handle, const char *pTagName ) = 0;
	virtual bool AddExcludedTag( UGCQueryHandle_t handle, const char *pTagName ) = 0;
	virtual bool SetReturnKeyValueTags( UGCQueryHandle_t handle, bool bReturnKeyValueTags ) = 0;
	virtual bool SetReturnLongDescription( UGCQueryHandle_t handle, bool bReturnLongDescription ) = 0;
	virtual bool SetReturnMetadata( UGCQueryHandle_t handle, bool bReturnMetadata ) = 0;
	virtual bool SetReturnChildren( UGCQueryHandle_t handle, bool bReturnChildren ) = 0;
	virtual bool SetReturnAdditionalPreviews( UGCQueryHandle_t handle, bool bReturnAdditionalPreviews ) = 0;
	virtual bool SetReturnTotalOnly( UGCQueryHandle_t handle, bool bReturnTotalOnly ) = 0;
	virtual bool SetLanguage( UGCQueryHandle_t handle, const char *pchLanguage ) = 0;
	virtual bool SetAllowCachedResponse( UGCQueryHandle_t handle, uint32 unMaxAgeSeconds ) = 0;

	// Options only for querying user UGC
	virtual bool SetCloudFileNameFilter( UGCQueryHandle_t handle, const char *pMatchCloudFileName ) = 0;

	// Options only for querying all UGC
	virtual bool SetMatchAnyTag( UGCQueryHandle_t handle, bool bMatchAnyTag ) = 0;
	virtual bool SetSearchText( UGCQueryHandle_t handle, const char *pSearchText ) = 0;
	virtual bool SetRankedByTrendDays( UGCQueryHandle_t handle, uint32 unDays ) = 0;
	virtual bool AddRequiredKeyValueTag( UGCQueryHandle_t handle, const char *pKey, const char *pValue ) = 0;

	// DEPRECATED - Use CreateQueryUGCDetailsRequest call above instead!
	virtual SteamAPICall_t RequestUGCDetails( PublishedFileId_t nPublishedFileID, uint32 unMaxAgeSeconds ) = 0;

	// Steam Workshop Creator API
	CALL_RESULT( CreateItemResult_t )
	virtual SteamAPICall_t CreateItem( AppId_t nConsumerAppId, EWorkshopFileType eFileType ) = 0; // create new item for this app with no content attached yet

	virtual UGCUpdateHandle_t StartItemUpdate( AppId_t nConsumerAppId, PublishedFileId_t nPublishedFileID ) = 0; // start an UGC item update. Set changed properties before commiting update with CommitItemUpdate()

	virtual bool SetItemTitle( UGCUpdateHandle_t handle, const char *pchTitle ) = 0; // change the title of an UGC item
	virtual bool SetItemDescription( UGCUpdateHandle_t handle, const char *pchDescription ) = 0; // change the description of an UGC item
	virtual bool SetItemUpdateLanguage( UGCUpdateHandle_t handle, const char *pchLanguage ) = 0; // specify the language of the title or description that will be set
	virtual bool SetItemMetadata( UGCUpdateHandle_t handle, const char *pchMetaData ) = 0; // change the metadata of an UGC item (max = k_cchDeveloperMetadataMax)
	virtual bool SetItemVisibility( UGCUpdateHandle_t handle, ERemoteStoragePublishedFileVisibility eVisibility ) = 0; // change the visibility of an UGC item
	virtual bool SetItemTags( UGCUpdateHandle_t updateHandle, const SteamParamStringArray_t *pTags ) = 0; // change the tags of an UGC item
	virtual bool SetItemContent( UGCUpdateHandle_t handle, const char *pszContentFolder ) = 0; // update item content from this local folder
	virtual bool SetItemPreview( UGCUpdateHandle_t handle, const char *pszPreviewFile ) = 0; //  change preview image file for this item. pszPreviewFile points to local image file, which must be under 1MB in size
	virtual bool RemoveItemKeyValueTags( UGCUpdateHandle_t handle, const char *pchKey ) = 0; // remove any existing key-value tags with the specified key
	virtual bool AddItemKeyValueTag( UGCUpdateHandle_t handle, const char *pchKey, const char *pchValue ) = 0; // add new key-value tags for the item. Note that there can be multiple values for a tag.
	virtual bool AddItemPreviewFile( UGCUpdateHandle_t handle, const char *pszPreviewFile, EItemPreviewType type ) = 0; //  add preview file for this item. pszPreviewFile points to local file, which must be under 1MB in size
	virtual bool AddItemPreviewVideo( UGCUpdateHandle_t handle, const char *pszVideoID ) = 0; //  add preview video for this item
	virtual bool UpdateItemPreviewFile( UGCUpdateHandle_t handle, uint32 index, const char *pszPreviewFile ) = 0; //  updates an existing preview file for this item. pszPreviewFile points to local file, which must be under 1MB in size
	virtual bool UpdateItemPreviewVideo( UGCUpdateHandle_t handle, uint32 index, const char *pszVideoID ) = 0; //  updates an existing preview video for this item
	virtual bool RemoveItemPreview( UGCUpdateHandle_t handle, uint32 index ) = 0; // remove a preview by index starting at 0 (previews are sorted)

	CALL_RESULT( SubmitItemUpdateResult_t )
	virtual SteamAPICall_t SubmitItemUpdate( UGCUpdateHandle_t handle, const char *pchChangeNote ) = 0; // commit update process started with StartItemUpdate()
	virtual EItemUpdateStatus GetItemUpdateProgress( UGCUpdateHandle_t handle, uint64 *punBytesProcessed, uint64* punBytesTotal ) = 0;

	// Steam Workshop Consumer API
	CALL_RESULT( SetUserItemVoteResult_t )
	virtual SteamAPICall_t SetUserItemVote( PublishedFileId_t nPublishedFileID, bool bVoteUp ) = 0;
	CALL_RESULT( GetUserItemVoteResult_t )
	virtual SteamAPICall_t GetUserItemVote( PublishedFileId_t nPublishedFileID ) = 0;
	CALL_RESULT( UserFavoriteItemsListChanged_t )
	virtual SteamAPICall_t AddItemToFavorites( AppId_t nAppId, PublishedFileId_t nPublishedFileID ) = 0;
	CALL_RESULT( UserFavoriteItemsListChanged_t )
	virtual SteamAPICall_t RemoveItemFromFavorites( AppId_t nAppId, PublishedFileId_t nPublishedFileID ) = 0;
	CALL_RESULT( RemoteStorageSubscribePublishedFileResult_t )
	virtual SteamAPICall_t SubscribeItem( PublishedFileId_t nPublishedFileID ) = 0; // subscribe to this item, will be installed ASAP
	CALL_RESULT( RemoteStorageUnsubscribePublishedFileResult_t )
	virtual SteamAPICall_t UnsubscribeItem( PublishedFileId_t nPublishedFileID ) = 0; // unsubscribe from this item, will be uninstalled after game quits
	virtual uint32 GetNumSubscribedItems() = 0; // number of subscribed items 
	virtual uint32 GetSubscribedItems( PublishedFileId_t* pvecPublishedFileID, uint32 cMaxEntries ) = 0; // all subscribed item PublishFileIDs

	// get EItemState flags about item on this client
	virtual uint32 GetItemState( PublishedFileId_t nPublishedFileID ) = 0;

	// get info about currently installed content on disc for items that have k_EItemStateInstalled set
	// if k_EItemStateLegacyItem is set, pchFolder contains the path to the legacy file itself (not a folder)
	virtual bool GetItemInstallInfo( PublishedFileId_t nPublishedFileID, uint64 *punSizeOnDisk, OUT_STRING_COUNT( cchFolderSize ) char *pchFolder, uint32 cchFolderSize, uint32 *punTimeStamp ) = 0;

	// get info about pending update for items that have k_EItemStateNeedsUpdate set. punBytesTotal will be valid after download started once
	virtual bool GetItemDownloadInfo( PublishedFileId_t nPublishedFileID, uint64 *punBytesDownloaded, uint64 *punBytesTotal ) = 0;
		
	// download new or update already installed item. If function returns true, wait for DownloadItemResult_t. If the item is already installed,
	// then files on disk should not be used until callback received. If item is not subscribed to, it will be cached for some time.
	// If bHighPriority is set, any other item download will be suspended and this item downloaded ASAP.
	virtual bool DownloadItem( PublishedFileId_t nPublishedFileID, bool bHighPriority ) = 0;

	// game servers can set a specific workshop folder before issuing any UGC commands.
	// This is helpful if you want to support multiple game servers running out of the same install folder
	virtual bool BInitWorkshopForGameServer( DepotId_t unWorkshopDepotID, const char *pszFolder ) = 0;

	// SuspendDownloads( true ) will suspend all workshop downloads until SuspendDownloads( false ) is called or the game ends
	virtual void SuspendDownloads( bool bSuspend ) = 0;
};

#define STEAMUGC_INTERFACE_VERSION "STEAMUGC_INTERFACE_VERSION008"

//-----------------------------------------------------------------------------
// Purpose: Callback for querying UGC
//-----------------------------------------------------------------------------
struct SteamUGCQueryCompleted_t
{
	enum { k_iCallback = k_iClientUGCCallbacks + 1 };
	UGCQueryHandle_t m_handle;
	EResult m_eResult;
	uint32 m_unNumResultsReturned;
	uint32 m_unTotalMatchingResults;
	bool m_bCachedData;	// indicates whether this data was retrieved from the local on-disk cache
};


//-----------------------------------------------------------------------------
// Purpose: Callback for requesting details on one piece of UGC
//-----------------------------------------------------------------------------
struct SteamUGCRequestUGCDetailsResult_t
{
	enum { k_iCallback = k_iClientUGCCallbacks + 2 };
	SteamUGCDetails_t m_details;
	bool m_bCachedData; // indicates whether this data was retrieved from the local on-disk cache
};


//-----------------------------------------------------------------------------
// Purpose: result for ISteamUGC::CreateItem() 
//-----------------------------------------------------------------------------
struct CreateItemResult_t
{
	enum { k_iCallback = k_iClientUGCCallbacks + 3 };
	EResult m_eResult;
	PublishedFileId_t m_nPublishedFileId; // new item got this UGC PublishFileID
	bool m_bUserNeedsToAcceptWorkshopLegalAgreement;
};


//-----------------------------------------------------------------------------
// Purpose: result for ISteamUGC::SubmitItemUpdate() 
//-----------------------------------------------------------------------------
struct SubmitItemUpdateResult_t
{
	enum { k_iCallback = k_iClientUGCCallbacks + 4 };
	EResult m_eResult;
	bool m_bUserNeedsToAcceptWorkshopLegalAgreement;
};


//-----------------------------------------------------------------------------
// Purpose: a Workshop item has been installed or updated
//-----------------------------------------------------------------------------
struct ItemInstalled_t
{
	enum { k_iCallback = k_iClientUGCCallbacks + 5 };
	AppId_t m_unAppID;
	PublishedFileId_t m_nPublishedFileId;
};


//-----------------------------------------------------------------------------
// Purpose: result of DownloadItem(), existing item files can be accessed again
//-----------------------------------------------------------------------------
struct DownloadItemResult_t
{
	enum { k_iCallback = k_iClientUGCCallbacks + 6 };
	AppId_t m_unAppID;
	PublishedFileId_t m_nPublishedFileId;
	EResult m_eResult;
};

//-----------------------------------------------------------------------------
// Purpose: result of AddItemToFavorites() or RemoveItemFromFavorites()
//-----------------------------------------------------------------------------
struct UserFavoriteItemsListChanged_t
{
	enum { k_iCallback = k_iClientUGCCallbacks + 7 };
	PublishedFileId_t m_nPublishedFileId;
	EResult m_eResult;
	bool m_bWasAddRequest;
};

//-----------------------------------------------------------------------------
// Purpose: The result of a call to SetUserItemVote()
//-----------------------------------------------------------------------------
struct SetUserItemVoteResult_t
{
	enum { k_iCallback = k_iClientUGCCallbacks + 8 };
	PublishedFileId_t m_nPublishedFileId;
	EResult m_eResult;
	bool m_bVoteUp;
};

//-----------------------------------------------------------------------------
// Purpose: The result of a call to GetUserItemVote()
//-----------------------------------------------------------------------------
struct GetUserItemVoteResult_t
{
	enum { k_iCallback = k_iClientUGCCallbacks + 9 };
	PublishedFileId_t m_nPublishedFileId;
	EResult m_eResult;
	bool m_bVotedUp;
	bool m_bVotedDown;
	bool m_bVoteSkipped;
};

#pragma pack( pop )

#endif // ISTEAMUGC_H