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import { Plug, deferred } from "./deps.ts";
const VERSION = "0.4.7";
export const PLUGIN_URL_BASE = Deno.env.get("WEBVIEW_DENO_PLUGIN_BASE") ||  `https://github.com/webview/webview_deno/releases/download/${VERSION}/`;const PLUGIN_URL = Deno.env.get("WEBVIEW_DENO_PLUGIN");const DEBUG = Boolean(Deno.env.get("WEBVIEW_DENO_DEBUG"));
let pluginId: number | null = null;
const encoder = new TextEncoder();const decoder = new TextDecoder();
function decode(data: Uint8Array): object {  const text = decoder.decode(data);  return JSON.parse(text);}
function encode(data: object): Uint8Array {  const text = JSON.stringify(data);  return encoder.encode(text);}
function opSync<R extends WebViewResponse<any>>(op: string, data: object): R {  if (pluginId === null) {    throw "The plugin must be initialized before use";  }
  const opId = Plug.getOpId(op);  const response = Plug.core.dispatch(opId, encode(data))!;
  return decode(response) as R;}
async function opAsync<R extends WebViewResponse<any>>(  op: string,  data: object,): Promise<R> {  if (pluginId === null) {    throw "The plugin must be initialized before use";  }
  const opId = Plug.getOpId(op);  const promise = deferred<R>();
  Plug.core.setAsyncHandler(    opId,    (response) => promise.resolve(decode(response) as R),  );
  const response = Plug.core.dispatch(opId, encode(data));
  if (response != null || response != undefined) {    throw "Expected null response!";  }
  return promise;}
function unwrapResponse<T, R extends WebViewResponse<T>>(response: R): T {  if (response.err) {    throw response.err;  }
  if (response.ok) {    return response.ok;  }
  throw "Invalid response";}
/** * Load the plugin */export async function load(cache: boolean) {  unload();  pluginId = await Plug.prepare({    name: "webview_deno",    url: PLUGIN_URL ?? PLUGIN_URL_BASE,    policy: cache ? Plug.CachePolicy.STORE : Plug.CachePolicy.NONE,  });}
/** * Free the plugin resource */export function unload(): void {  if (pluginId !== null) Deno.close(pluginId);  pluginId = null;}
export interface WebViewResponse<T> {  err?: string;  ok?: T;}
export interface WebViewNewParams {  title: string;  url: string;  width: number;  height: number;  resizable: boolean;  debug: boolean;  frameless: boolean;}
export interface WebViewNewResult {  id: number;}
export interface WebViewExitParams {  id: number;}
export interface WebViewExitResult {}
export interface WebViewEvalParams {  id: number;  js: string;}
export interface WebViewEvalResult {}
export interface WebViewSetColorParams {  id: number;  r: number;  g: number;  b: number;  a: number;}
export interface WebViewSetColorResult {}
export interface WebViewSetTitleParams {  id: number;  title: String;}
export interface WebViewSetTitleResult {}
export interface WebViewSetFullscreenParams {  id: number;  fullscreen: boolean;}
export interface WebViewSetFullscreenResult {}
export interface WebViewLoopParams {  id: number;  blocking: number;}
export interface WebViewLoopResult {  code: number;}
export interface WebViewRunParams {  id: number;}
export interface WebViewRunResult {}
export function WebViewNew(params: WebViewNewParams): WebViewNewResult {  return unwrapResponse(opSync("webview_new", params));}
export function WebViewExit(params: WebViewExitParams): WebViewExitResult {  return unwrapResponse(opSync("webview_exit", params));}
export function WebViewEval(params: WebViewEvalParams): WebViewEvalResult {  return unwrapResponse(opSync("webview_eval", params));}
export function WebViewSetColor(  params: WebViewSetColorParams,): WebViewSetColorResult {  return unwrapResponse(opSync("webview_set_color", params));}
export function WebViewSetTitle(  params: WebViewSetTitleParams,): WebViewSetTitleResult {  return unwrapResponse(opSync("webview_set_title", params));}
export function WebViewSetFullscreen(  params: WebViewSetFullscreenParams,): WebViewSetFullscreenResult {  return unwrapResponse(    opSync("webview_set_fullscreen", params),  );}
export function WebViewLoop(params: WebViewLoopParams): WebViewLoopResult {  return unwrapResponse(opSync("webview_loop", params));}
export async function WebViewRun(params: WebViewRunParams): Promise<  WebViewRunResult> {  return unwrapResponse(await opAsync("webview_run", params));}
await load(!DEBUG);
//@ts-ignoreif (typeof window !== "undefined") window.addEventListener("unload", unload);