const { test } = require('node:test');
const assert = require('node:assert/strict');
const path = require('node:path');
const { pathToFileURL } = require('node:url');

async function imagesModule() {
  return import(pathToFileURL(path.join(__dirname, '..', 'public/js/assistant/images.js')).href);
}

test('assistant image intent does not intercept table retrieval requests', async () => {
  const { isImageRequest } = await imagesModule();
  assert.equal(isImageRequest('can you show me the table?'), false);
  assert.equal(isImageRequest('show me Table 13.1'), false);
});

test('assistant image intent still handles explicit visual requests', async () => {
  const { isImageRequest } = await imagesModule();
  assert.equal(isImageRequest('show me the diagram'), true);
  assert.equal(isImageRequest('create an infographic for asthma'), true);
});

// A run of image turns used to make every acknowledgement produce another image:
// the model saw its own "I'll generate an educational image…" in the history and
// replayed it verbatim for "Окей" and "Nice". The fix is not a word list in the
// route — the model already has the tool, the prompt and the conversation, so the
// policy lives where the model reads it.
test('the prompt states principles, not an enumerated list of cases', () => {
  const { DEFAULT_BEHAVIOR } = require('../src/utils/clinicalPrompts');
  assert.match(DEFAULT_BEHAVIOR, /Respond to the user's latest message, not to an earlier one/);
  assert.match(DEFAULT_BEHAVIOR, /If it carries no question/, 'covers acknowledgements without naming any');
  assert.match(DEFAULT_BEHAVIOR, /Never repeat a previous answer/);
  assert.match(DEFAULT_BEHAVIOR, /do not answer from your own knowledge/, 'grounded in retrieved context');
  // No word list anywhere: the model reads the message in whatever language it
  // arrives in, so no vocabulary needs maintaining here.
  for (const word of ['ok', 'nice', 'thanks', 'okay']) {
    assert.doesNotMatch(DEFAULT_BEHAVIOR, new RegExp('"' + word + '"', 'i'), 'no example word list');
  }
});

test('the tool description says when to use it and when not', () => {
  const { tools } = require('../src/utils/imageTool');
  const description = tools[0].function.description;
  assert.match(description, /asks for a picture, or for a change to one you just made/);
  assert.match(description, /and not otherwise/);
  assert.match(description, /grounded in the current clinical content/);
});

test('no hand-maintained acknowledgement or language list is left in the route', () => {
  const fs = require('node:fs');
  const src = fs.readFileSync(path.join(__dirname, '..', 'src/routes/clinicalAssistant.js'), 'utf8');
  assert.doesNotMatch(src, /GREETING_RE/, 'greeting word list removed — the model decides');
  assert.doesNotMatch(src, /IMAGE_NOUN_NON_LATIN|IMAGE_REPEAT_NON_LATIN/, 'no multilingual vocabulary lists');
  assert.doesNotMatch(src, /suppressRepeatedImage/, 'no answer-inspection backstop');
  // The one surviving pattern is the compatibility path for models that write
  // the prompt as text; it reads the USER's message only.
  const fallback = src.slice(src.indexOf('async function dispatchImageRequestFallback'));
  assert.match(fallback, /isExplicitImageRequest\(prepared\.message\)/, 'gated on the user, never on the answer');
});