/** Run with DOC0_CHECKOUT=/absolute/path "$DOC0_CHECKOUT/node_modules/.bin/tsx" scripts/verify-doc0-source-wire.ts.
 * In-memory test only: proves the current DOC0 response shape, not production auth or storage. */
import { createHash } from 'node:crypto';
import { pathToFileURL } from 'node:url';
import { isAbsolute, resolve } from 'node:path';
import { execFileSync } from 'node:child_process';
import { Doc0SourceClient } from '../src/document-workbench/doc0-source-client';
import { structureDocumentBatch } from '../src/document-workbench/structure-document-batch';
import { exportValidatedBatch } from '../src/document-workbench/structured-batch';

async function main() {
  const checkout = process.env.DOC0_CHECKOUT;
  if (!checkout || !isAbsolute(checkout)) throw new Error('DOC0_CHECKOUT must name an absolute local checkout');
  const load = (path: string) => import(pathToFileURL(resolve(checkout, path)).href);
  const [{ buildServer }, { InMemoryDocumentStore }, { InMemoryDocumentVersionStore }, { InMemoryParseStore }, { segmentText }] = await Promise.all([
    load('src/api/app.ts'), load('src/domains/document/store.ts'), load('src/domains/document-version/store.ts'),
    load('src/domains/parse/store.ts'), load('src/parsing/segments.ts'),
  ]);
  process.env.AUTH_ENFORCE = 'false';
  Object.assign(process.env, { NODE_ENV: 'test' });
  const documents = new InMemoryDocumentStore(), versions = new InMemoryDocumentVersionStore(), parses = new InMemoryParseStore();
  const input = { tenantId: 't-test', projectId: 'p-test', actorId: 'actor', requestId: 'req', receipt: {
    documentId: 'doc', versionId: 'v1', checksumSha256: createHash('sha256').update('fixture bytes').digest('hex'), pipelineStage: 'parsed',
  } };
  await documents.create({ tenantId: 't-test', projectId: 'p-test', documentId: 'doc', appId: 'test', displayName: 'fixture', documentType: 'unknown', classification: 'internal', tags: [], createdBy: 'actor' });
  await versions.append({ tenantId: 't-test', documentId: 'doc', versionId: 'v1', versionNumber: 1, checksumSha256: input.receipt.checksumSha256, sizeBytes: 13, mimeType: 'text/plain', st0reArtifactRef: 'fixture', pipelineStage: 'parsed', extractedMetadata: {}, customMetadata: {}, createdBy: 'actor' });
  const parts = segmentText('Acme AB\n\nInvoice 123');
  await parses.appendDocumentText({ tenantId: 't-test', documentId: 'doc', versionId: 'v1', documentTextId: 'txt', parserRunId: 'run', charCount: parts.charCount, segmentCount: parts.segments.length, segmentsTruncated: parts.truncated, textSha256: parts.textSha256 });
  await parses.appendTextSegments(parts.segments.map((s: object, i: number) => ({ ...s, tenantId: 't-test', documentId: 'doc', versionId: 'v1', documentTextId: 'txt', parserRunId: 'run', segmentId: `seg-${i}`, sourceVersionSha256: input.receipt.checksumSha256 })));
  const app = buildServer({ documentStore: documents, versionStore: versions, parseStore: parses });
  const fetchImpl: typeof fetch = async (url, init) => {
    const target = new URL(String(url));
    const out = await app.inject({ method: 'GET', url: target.pathname + target.search, headers: Object.fromEntries(new Headers(init?.headers).entries()) });
    return new Response(out.body, { status: out.statusCode, headers: { 'content-type': 'application/json' } });
  };
  try {
    const client = new Doc0SourceClient({ baseUrl: 'https://doc0.example', serviceToken: 'fixture', fetchImpl });
    const result = await client.read(input);
    if (result.sources.length !== 2 || result.sources[0]?.text !== 'Acme AB' || result.sources[1]?.text !== 'Invoice 123') throw new Error('DOC0 wire mismatch');
    const fields = [{ name: 'value', type: 'string' as const, required: true }];
    const records = result.sources.map((source) => ({ value: { value: source.text }, evidence: [{ field: 'value', sourceId: source.id, start: 0, end: source.text.length, transform: 'exact' }] }));
    const request = {
      context: { tenantId: 't-test', projectId: 'p-test', actorId: 'actor', capability: 'inf0.complete', correlationId: 'req' },
      admission: { tenantId: 't-test', projectId: 'p-test', jobId: 'j', modelId: 'local_only', dataClass: 'high', maxInputTokens: 200, maxOutputTokens: 100, maximumCredits: 5 },
      policy: { tenantId: 't-test', projectId: 'p-test', allowedModelIds: ['local_only'], allowedDataClasses: ['high'], destination: 'internal' as const, externalTransferAllowed: false, maxInputTokens: 200, maxOutputTokens: 100 },
      reservation: { tenantId: 't-test', projectId: 'p-test', jobId: 'j', status: 'reserved' as const, credits: 5 },
    };
    const structured = await structureDocumentBatch({ request, fields, sources: result.sources, instructions: 'Extract values', countTokens: async () => 50,
      gateway: { complete: async () => ({ status: 'model_stopped', content: JSON.stringify({ records }), modelExecuted: 'fixture', providerKind: 'local', promptTokens: 50, completionTokens: 20, totalTokens: 70 }) } });
    if (structured.status !== 'mechanically_validated') throw new Error('model fixture evidence failed');
    const exported = exportValidatedBatch({ format: 'json', fields, sources: result.sources, records: structured.records });
    if (exported.status !== 'ready' || JSON.parse(exported.content).length !== 2) throw new Error('export fixture failed');
    const revision = execFileSync('git', ['rev-parse', 'HEAD'], { cwd: checkout, encoding: 'utf8' }).trim();
    console.log(`DOC0 ${revision}: actual route through 0pt source and validated export; in-memory stores, test auth and model fixture`);
  } finally { await app.close(); }
}
main().catch((error: unknown) => { console.error(error); process.exitCode = 1; });