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import {  createHandler,  OperationContext,  RawRequest,  STATUS_TEXT,  type StatusCode,} from './deps.ts'import { accepts } from 'https://deno.land/std@0.221.0/http/negotiation.ts'import { GQLOptions } from './types.ts'
function toRequest<Req = Request, Ctx = unknown>(  req: Pick<Request, 'method' | 'url' | 'headers' | 'text'>,  context: Ctx,): RawRequest<Req, Ctx> {  return {    method: req.method,    url: req.url,    headers: req.headers,    body: () => req.text(),    raw: req as Req,    context,  }}
export function GraphQLHTTP<  Req = Request,  Context extends OperationContext = { request: Req },  ReqCtx extends { request: Req } = { request: Req },>(  {    headers = {},    graphiql,    playgroundOptions = {},    ...options  }: GQLOptions<Req, ReqCtx, Context>,  reqCtx?: (req: Req) => ReqCtx,) {  const handler = createHandler(options)
  return async function handleRequest(req: Request): Promise<Response> {    try {      if (        req.method === 'GET' && graphiql && accepts(req)[0] === 'text/html'      ) {        const urlQuery = req.url.substring(req.url.indexOf('?'))        const queryParams = new URLSearchParams(urlQuery)
        if (!queryParams.has('raw')) {          const { renderPlaygroundPage } = await import('./graphiql/render.ts')          const playground = renderPlaygroundPage({            ...playgroundOptions,            endpoint: '/graphql',          })
          return new Response(playground, {            headers: new Headers({              'Content-Type': 'text/html',              ...headers,            }),          })        }      }      const [body, init] = await handler(        toRequest<Req, ReqCtx>(          req,          reqCtx ? reqCtx(req as Req) : { request: req } as ReqCtx,        ),      )
      return new Response(        body || STATUS_TEXT[init.status as StatusCode],        {          ...init,          headers: new Headers({ ...init.headers, ...headers }),        },      )    } catch (e) {      console.error(        'Internal error occurred during request handling. ' +          'Please check your implementation.',        e,      )      return new Response(null, { status: 500 })    }  }}