import { davError, davResponse, parseDepth } from "@/worker/dav/http";
import { maxDavDepthInfinityNodes, maxXmlBodyBytes } from "@/worker/dav/limits";
import { parsePropfindXml, type PropfindRequest } from "@/worker/xml/dav-request";
import type { AppContext } from "@/worker/types";
import type { SubjectRow } from "@/worker/db/d1/schema";
import { fileDavObject, resultError, type NormalizedFilesRequestPath } from "@/worker/webdav/object";
import { multistatusXml, nodePropstats } from "@/worker/webdav/props";

export async function handlePropfind(c: AppContext, subject: SubjectRow, requestPath: NormalizedFilesRequestPath) {
  const depth = parseDepth(c.req.header("depth") ?? null, "infinity");
  if (!depth) return davError(400, "Invalid Depth header");
  let parsed: PropfindRequest;
  try {
    parsed = parsePropfindXml(await c.req.text(), maxXmlBodyBytes(c.env));
  } catch (cause) {
    return davError(400, cause instanceof Error ? cause.message : "Invalid PROPFIND body");
  }
  const result = await fileDavObject(c.env, subject.storageId).propfind({
    subjectId: subject.id,
    storageId: subject.storageId,
    path: requestPath.path,
    depth,
    maxNodes: maxDavDepthInfinityNodes(c.env),
    nowMs: Date.now(),
  });
  if (!result.ok) return resultError(result);
  return davResponse(
    multistatusXml(result.nodes.map((node) => ({ href: node.href, propstats: nodePropstats(node, parsed) }))),
    207,
  );
}