62 lines
1.4 KiB
TypeScript
62 lines
1.4 KiB
TypeScript
import { apiContext } from "service-srv";
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import ts from "typescript";
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import { createHash } from "crypto";
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const dts = {} as Record<string, { etag: string; dts: string }>;
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export const _ = {
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url: "/site-dts/:site_id",
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async api(site_id: string) {
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const { req, res } = apiContext(this);
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let sent = false;
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if (dts[site_id]) {
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res.setHeader("etag", dts[site_id].etag);
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if (dts[site_id].etag === req.headers.get("if-none-match")) {
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res.sendStatus(304);
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sent = true;
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}
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if (!sent) {
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sent = true;
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res.send(dts[site_id].dts);
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}
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}
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const site = await db.site.findFirst({
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where: { id: site_id },
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select: { js: true },
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});
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if (site && site.js) {
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const options = {
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emitDeclarationOnly: true,
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declaration: true,
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};
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let dtsrc = "";
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const host = ts.createCompilerHost(options);
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host.writeFile = (fileName, contents) => (dtsrc = contents);
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host.readFile = () =>
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(site.js || "") + "\n\nexport const ______: string;";
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const program = ts.createProgram(["sitedts"], options, host);
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program.emit();
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const etag = createHash("md5").update(dtsrc).digest("hex");
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if (!sent) res.setHeader("etag", etag);
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dts[site_id] = { etag, dts: dtsrc };
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if (sent) {
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return "";
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}
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return dtsrc;
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}
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res.setHeader("etag", "empty");
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return "";
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},
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};
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