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import { expect } from "vitest";
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import { createDavFixture, davRequest } from "@tests/worker/helpers/dav";
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import { fetchWorker } from "@tests/worker/helpers/http";
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type DavFixture = Awaited<ReturnType<typeof createDavFixture>>;
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export function uid(): string {
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  return `${crypto.randomUUID()}@example.test`;
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}
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export function event(input: {
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  uid: string;
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  summary: string;
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  start?: string;
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  end?: string;
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  rrule?: string;
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  categories?: string[];
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}): string {
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  return [
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    "BEGIN:VCALENDAR",
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    "VERSION:2.0",
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    "PRODID:-//dab//tests//EN",
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    "BEGIN:VEVENT",
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    `UID:${input.uid}`,
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    "DTSTAMP:20260101T000000Z",
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    `SUMMARY:${input.summary}`,
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    `DTSTART:${input.start ?? "20260521T120000Z"}`,
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    `DTEND:${input.end ?? "20260521T130000Z"}`,
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    input.categories ? `CATEGORIES:${input.categories.join(",")}` : null,
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    input.rrule ? `RRULE:${input.rrule}` : null,
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    "END:VEVENT",
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    "END:VCALENDAR",
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    "",
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  ]
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    .filter((line): line is string => line !== null)
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    .join("\r\n");
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}
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export function propfindBody(props: string): string {
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  return `<?xml version="1.0"?><D:propfind xmlns:D="DAV:" xmlns:C="urn:ietf:params:xml:ns:caldav" xmlns:CS="http://calendarserver.org/ns/"><D:prop>${props}</D:prop></D:propfind>`;
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}
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export function mkcolCalendarBody(displayName: string, timezoneIcal?: string): string {
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  return [
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    '<?xml version="1.0"?>',
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    '<D:mkcol xmlns:D="DAV:" xmlns:C="urn:ietf:params:xml:ns:caldav">',
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    "<D:set><D:prop><D:resourcetype><D:collection/><C:calendar/></D:resourcetype>",
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    `<D:displayname>${displayName}</D:displayname>`,
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    timezoneIcal ? `<C:calendar-timezone>${timezoneIcal}</C:calendar-timezone>` : null,
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    "</D:prop></D:set></D:mkcol>",
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  ]
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    .filter((line): line is string => line !== null)
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    .join("");
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}
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export function reportBody(name: string, body: string): string {
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  return name === "sync-collection"
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    ? `<?xml version="1.0"?><D:sync-collection xmlns:D="DAV:" xmlns:C="urn:ietf:params:xml:ns:caldav">${body}</D:sync-collection>`
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    : `<?xml version="1.0"?><C:${name} xmlns:D="DAV:" xmlns:C="urn:ietf:params:xml:ns:caldav">${body}</C:${name}>`;
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}
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export function syncCollectionBody(prevToken: string, props = "<D:getetag/>"): string {
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  return reportBody(
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    "sync-collection",
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    `<D:sync-token>${prevToken}</D:sync-token><D:sync-level>1</D:sync-level><D:prop>${props}</D:prop>`,
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  );
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}
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export async function syncToken(fixture: DavFixture): Promise<string> {
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  const response = await fetchWorker(
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    davRequest(fixture, "/calendars/default/", {
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      method: "REPORT",
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      headers: { "content-type": "application/xml" },
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      body: syncCollectionBody(""),
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    }),
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  );
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  expect(response.status).toBe(207);
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  const token = /<D:sync-token>([^<]+)<\/D:sync-token>/.exec(await response.text())?.[1];
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  if (!token) throw new Error("Missing sync-token in baseline sync-collection response");
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  return token;
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}
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export async function propfindSyncToken(fixture: DavFixture, href = "/calendars/default/") {
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  const response = await fetchWorker(
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    davRequest(fixture, href, {
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      method: "PROPFIND",
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      headers: { depth: "0", "content-type": "application/xml" },
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      body: propfindBody("<D:sync-token/>"),
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    }),
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  );
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  expect(response.status).toBe(207);
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  const token = /<D:sync-token>([^<]+)<\/D:sync-token>/.exec(await response.text())?.[1];
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  if (!token) throw new Error("Missing sync-token in PROPFIND response");
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  return token;
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}