import type { EBrowserType, ESteamRealm, EUIComposition, EUIMode, Unregisterable } from './shared';

export interface Overlay {
	/**
	 * Destroys the gamepad UI desktop configurator window if open.
	 */
	DestroyGamePadUIDesktopConfiguratorWindow(): void;

	GetOverlayBrowserInfo(): Promise<OverlayBrowserInfo[]>;

	// steam://gamewebcallback
	HandleGameWebCallback(url: string): void;

	/**
	 * @param protocol Something like {@link OverlayBrowserProtocols.strScheme}
	 */
	HandleProtocolForOverlayBrowser(appId: number, protocol: string): void;

	/**
	 * Registers a callback function to be called when an overlay is activated from an app.
	 * @param callback The callback function to be called.
	 * @returns an object that can be used to unregister the callback.
	 */
	RegisterForActivateOverlayRequests(callback: (request: ActivateOverlayRequest) => void): Unregisterable;

	/**
	 * Registers a callback function to be called when a microtransaction authorization is requested.
	 * @param callback The callback function to be called.
	 * @returns an object that can be used to unregister the callback.
	 */
	RegisterForMicroTxnAuth(callback: (appId: number, microTxnId: string, realm: ESteamRealm, microTxnUrl: string) => void): Unregisterable;

	/**
	 * Registers a callback function to be called when a microtransaction authorization is dismissed by the user in Steam's authorization page.
	 * @param callback The callback function to be called.
	 * @returns an object that can be used to unregister the callback.
	 */
	RegisterForMicroTxnAuthDismiss(callback: (appId: number, microTxnId: string) => void): Unregisterable;

	RegisterForNotificationPositionChanged(callback: (appId: number, position: ENotificationPosition, horizontalInset: number, verticalInset: number) => void): Unregisterable;

	/**
	 * Registers a callback function to be called when an overlay is activated or closed.
	 * @param callback The callback function to be called.
	 * @returns an object that can be used to unregister the callback.
	 */
	RegisterForOverlayActivated(callback: (overlayProcessPid: number, appId: number, active: boolean, param3: boolean) => void): Unregisterable;

	/**
	 * Registers a callback function to be called when the overlay browser protocols change.
	 * @param callback The callback function to be called.
	 * @returns an object that can be used to unregister the callback.
	 */
	RegisterForOverlayBrowserProtocols(callback: (browseProtocols: OverlayBrowserProtocols) => void): Unregisterable;

	/**
	 * Registers **the** callback function to be called when the overlay browser information changes.
	 * @param callback The callback function to be called when the overlay browser information changes.
	 * @returns an object that can be used to unregister the callback.
	 * @remarks Do Not Use, this will break the overlay unless you know what you are doing.
	 */
	RegisterOverlayBrowserInfoChanged(callback: () => void): Unregisterable;

	SetOverlayState(appId: string, state: EUIComposition): void;
}

type OverlayRequestDialog_t =
	| 'achievements'
	| 'asyncnotificationsrequested'
	| 'chat'
	| 'community'
	| 'friendadd'
	| 'friendremove'
	| 'friendrequestaccept'
	| 'friendrequestignore'
	| 'friendremove'
	| 'jointrade'
	| 'leaderboards'
	| 'lobbyinvite'
	| 'lobbyinviteconnectstring'
	| 'officialgamegroup'
	| 'requestplaytime'
	| 'remoteplaytogether'
	| 'remoteplaytogetherinvite'
	| 'settings'
	| 'stats'
	| 'steamid'
	| 'store';

// EPosition
export enum ENotificationPosition {
	TopLeft,
	TopRight,
	BottomLeft,
	BottomRight,
}

export interface ActivateOverlayRequest {
	/**
	 * The app ID that just had an overlay request.
	 */
	appid: number;

	/**
	 * `true` if webpage, and so {@link strDialog} will start with `https://`.
	 */
	bWebPage: boolean;

	eFlag: EOverlayToStoreFlag;

	eWebPageMode: EActivateGameOverlayToWebPageMode;

	/**
	 * Steam64 ID.
	 */
	steamidTarget: string;

	/**
	 * Game invites string for `Friends.InviteUserToGame`.
	 */
	strConnectString: string;

	/**
	 * Web page URL if starts with `https://`, so cast the type to `string` if it is.
	 */
	strDialog: OverlayRequestDialog_t;

	/**
	 * App ID of the requesting game.
	 */
	unRequestingAppID: number;
}

export interface OverlayBrowserInfo {
	appID: number;
	eBrowserType: EBrowserType;
	eUIMode: EUIMode;
	flDisplayScale?: number;
	gameID: string;
	nBrowserID: number;
	nScreenHeight: number;
	nScreenWidth: number;
	/**
	 * The PID of the overlay process.
	 */
	unPID: number;
}

export interface OverlayBrowserProtocols {
	unAppID: number;
	strScheme: string;
	bAdded: boolean;
}

export enum EActivateGameOverlayToWebPageMode {
	Default,
	Modal,
}

export enum EOverlayToStoreFlag {
	None,
	AddToCart,
	AddToCartAndShow,
}