import type { DidDocument } from "@atcute/identity";
import type { ATProtoUniverse } from "@char/lexicon.ts/atproto";
import { XRPC } from "@char/lexicon.ts/rpc";

const bskyPublic = new XRPC<ATProtoUniverse>("https://public.api.bsky.app");

export async function resolveHandle(handle: string): Promise<`did:${string}`> {
  const { did } = await bskyPublic.get("com.atproto.identity.resolveHandle", {
    params: { handle },
  });
  return did;
}

export async function resolveDid(did: string): Promise<DidDocument> {
  if (did.startsWith("did:plc:")) {
    const doc = await fetch("https://plc.directory/" + did).then(r => r.json());
    return doc;
  } else if (did.startsWith("did:web:")) {
    // TODO: write our own did:web resolver (maybe use a CORS proxy on clientside)
    const { WebDidDocumentResolver } = await import("@atcute/identity-resolver");
    const resolver = new WebDidDocumentResolver();
    return resolver.resolve(did as `did:web:${string}`);
  }

  throw new Error("unsupported did type: " + did);
}