/**
 * Consumer-strict smoke for `@shade/files`.
 *
 * Compiled with `lib: ["ES2022", "DOM"]` + `exactOptionalPropertyTypes` +
 * `skipLibCheck: false` to mimic a downstream consumer like Dispatch.
 * Catches the class of bug where our internal narrower types (e.g. a
 * locally-defined `MinimalReader`) reject native browser types
 * (e.g. `ReadableStreamDefaultReader`) the consumer would naturally
 * pass in.
 *
 * If this file fails to compile, the published packages will fail in
 * any consumer's strict tsc — pre-publish gate must catch it.
 */
import { decideInline, type WriteSource } from '@shade/files';

declare const blob: Blob;
declare const stream: ReadableStream<Uint8Array>;
declare const bytes: Uint8Array;

async function smoke(): Promise<void> {
  // Each branch of WriteSource must round-trip through decideInline()
  // when given the natively-typed inputs a browser app would supply.
  const sources: WriteSource[] = [
    bytes,
    blob,
    stream,
    { stream, size: 1024 },
    { stream, size: 1024, contentType: 'image/png' },
  ];
  for (const src of sources) {
    const decision = await decideInline(src);
    if (decision.kind === 'streams') {
      const reader = decision.stream.getReader();
      const { value, done } = await reader.read();
      if (!done && value !== undefined) {
        void value.byteLength;
      }
      reader.releaseLock();
    }
  }
}

void smoke;