/**
 * Interface for managing screenshots.
 */
export interface Screenshots {
	/**
	 * Deletes a local screenshot.
	 * @param appId The ID of the application.
	 * @param screenshotIndex The index of the local screenshot.
	 * @returns a boolean value indicating whether the deletion was successful.
	 */
	DeleteLocalScreenshot(appId: string, screenshotIndex: number): Promise<boolean>;

	DeleteLocalScreenshots(screenshots: ScreenshotToDelete[]): Promise<ScreenshotDeletionResponse>;

	/**
	 * Retrieves all local screenshots for all applications.
	 * @returns an array of Screenshot objects.
	 */
	GetAllAppsLocalScreenshots(): Promise<Screenshot[]>;

	/**
	 * Retrieves the count of all local screenshots for all applications.
	 * @returns the count of local screenshots.
	 */
	GetAllAppsLocalScreenshotsCount(): Promise<number>;

	/**
	 * Retrieves a range of local screenshots for all applications.
	 * @param start The starting index of the screenshot range.
	 * @param end The ending index of the screenshot range.
	 * @returns an array of Screenshot objects within the specified range.
	 */
	GetAllAppsLocalScreenshotsRange(start: number, end: number): Promise<Screenshot[]>;

	/**
	 * Retrieves all local screenshots.
	 * @returns an array of Screenshot objects.
	 */
	GetAllLocalScreenshots(): Promise<Screenshot[]>;

	/**
	 * Retrieves the game associated with a specific local screenshot index.
	 * @param screenshotIndex The index of the local screenshot.
	 * @returns the ID of the game associated with the screenshot.
	 */
	GetGameWithLocalScreenshots(screenshotIndex: number): Promise<number>;

	/**
	 * Retrieves the last taken local screenshot.
	 * @returns the last taken local screenshot.
	 */
	GetLastScreenshotTaken(): Promise<Screenshot>;

	/**
	 * Retrieves a specific local screenshot for an application.
	 * @param appId The ID of the application.
	 * @param screenshotIndex The index of the local screenshot.
	 * @returns the requested local screenshot.
	 */
	GetLocalScreenshotByHandle(appId: string, screenshotIndex: number): Promise<Screenshot>;

	/**
	 * Retrieves the count of local screenshots for a specific application.
	 * @param appId The ID of the application.
	 * @returns the count of local screenshots for the application.
	 */
	GetLocalScreenshotCount(appId: number): Promise<number>;

	/**
	 * Retrieves the path of a screenshot.
	 * @param appId The ID of the application.
	 * @param hHandle The handle of the screenshot.
	 * @returns the screenshot path or the screenshot directory if no such handle.
	 */
	GetLocalScreenshotPath(appId: number, hHandle: number): Promise<string>;

	/**
	 * Retrieves the number of games with local screenshots.
	 * @returns the number of games with local screenshots.
	 */
	GetNumGamesWithLocalScreenshots(): Promise<number>;

	/**
	 * Gets total screenshot usage in the specified library folder.
	 * @param path Library folder path.
	 * @returns the number of taken space in bytes.
	 */
	GetTotalDiskSpaceUsage(path: string): Promise<number>;

	/**
	 * Opens a local screenshot in the system image viewer.
	 * If the screenshot index is invalid, this function opens the screenshots directory for the specified application ID.
	 * @param appId The ID of the application.
	 * @param screenshotIndex The index of the local screenshot.
	 */
	ShowScreenshotInSystemViewer(appId: string, screenshotIndex: number): void;

	/**
	 * Opens the folder containing local screenshots for a specific application.
	 * @param appId The ID of the application.
	 */
	ShowScreenshotsOnDisk(appId: string): void;

	/**
	 * Uploads a local screenshot.
	 * @param appId The ID of the application.
	 * @param localScreenshot_hHandle The handle of the local screenshot.
	 * @param filePrivacyState The privacy state of the screenshot file.
	 * @returns a boolean value indicating whether the upload was successful.
	 */
	UploadLocalScreenshot(appId: string, localScreenshot_hHandle: number, filePrivacyState: EUCMFilePrivacyState): Promise<boolean>;
}

export interface Screenshot {
	nAppID: number;
	strGameID: string;
	hHandle: number;
	nWidth: number;
	nHeight: number;
	nCreated: number; // timestamp
	ePrivacy: EUCMFilePrivacyState;
	strCaption: string;
	bSpoilers: boolean;
	strUrl: string;
	bUploaded: boolean;
	ugcHandle: string;
}

export interface ScreenshotToDelete {
	gameID: string;
	rgHandles: number[];
}

export interface ScreenshotDeletionResponse {
	bSuccess: boolean;
	rgFailedRequestIndices: number[];
}

export enum EUCMFilePrivacyState {
	Invalid = -1,
	Private = 1 << 1,
	FriendsOnly = 1 << 2,
	Public = 1 << 3,
	Unlisted = 1 << 4,
}