Function genAsyncHandlerBody

src/cppCodeAsync.ts:4–59

(d: TemplateData, source: TransformedSource, path: string)

import { cacheCtrl, genCommonHeader, genDataArrays, genEtagArrays, genHook, genManifest, sw } from './cppCode';

const genAsyncHandlerBody = (d: TemplateData, source: TransformedSource, path: string): string => {
  const lines: string[] = [];
  const etagCheck = sw(d.etag, {
    always: [
      `    const AsyncWebHeader* h = request->getHeader("If-None-Match");`,
      `    if (h && h->value().equals(etag_${source.dataname})) {`,
      `      ${d.definePrefix}_onFileServed("${path}", 304);`,
      `      request->send(304);`,
      `      return;`,
      `    }`
    ].join('\n'),
    compiler: [
      `  #ifdef ${d.definePrefix}_ENABLE_ETAG`,
      `    const AsyncWebHeader* h = request->getHeader("If-None-Match");`,
      `    if (h && h->value().equals(etag_${source.dataname})) {`,
      `      ${d.definePrefix}_onFileServed("${path}", 304);`,
      `      request->send(304);`,
      `      return;`,
      `    }`,
      `  #endif`
    ].join('\n')
  });
  if (etagCheck) lines.push(etagCheck);
  lines.push(
    sw(d.gzip, {
      always: [
        `    AsyncWebServerResponse *response = request->beginResponse(200, "${source.mime}", datagzip_${source.dataname}, ${source.lengthGzip});`,
        ...(source.isGzip ? [`    response->addHeader("Content-Encoding", "gzip");`] : [])
      ].join('\n'),
      never: `    AsyncWebServerResponse *response = request->beginResponse(200, "${source.mime}", data_${source.dataname}, ${source.length});`,
      compiler: [
        `  #ifdef ${d.definePrefix}_ENABLE_GZIP`,
        `    AsyncWebServerResponse *response = request->beginResponse(200, "${source.mime}", datagzip_${source.dataname}, ${source.lengthGzip});`,
        ...(source.isGzip ? [`    response->addHeader("Content-Encoding", "gzip");`] : []),
        `  #else`,
        `    AsyncWebServerResponse *response = request->beginResponse(200, "${source.mime}", data_${source.dataname}, ${source.length});`,
        `  #endif`
      ].join('\n')
    })
  );
  const cacheHeaders = sw(d.etag, {
    always: [
      `    response->addHeader("Cache-Control", "${cacheCtrl(source)}");`,
      `    response->addHeader("ETag", etag_${source.dataname});`
    ].join('\n'),
    compiler: [
      `  #ifdef ${d.definePrefix}_ENABLE_ETAG`,
      `    response->addHeader("Cache-Control", "${cacheCtrl(source)}");`,
      `    response->addHeader("ETag", etag_${source.dataname});`,
      `  #endif`
    ].join('\n')
  });
  if (cacheHeaders) lines.push(cacheHeaders);
  lines.push(`    ${d.definePrefix}_onFileServed("${path}", 200);`, `    request->send(response);`);
  return lines.join('\n');
};

export const genAsyncCpp = (d: TemplateData): string => {