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 system prompt tells the model to decide, in the user\'s own language', () => {
  const { DEFAULT_BEHAVIOR } = require('../src/utils/clinicalPrompts');
  assert.match(DEFAULT_BEHAVIOR, /in any language/i, 'acknowledgements are recognised by the model, not by a list');
  assert.match(DEFAULT_BEHAVIOR, /ONLY when the user's latest message itself asks for a picture/);
  assert.match(DEFAULT_BEHAVIOR, /never repeat a previous turn's answer/);
  assert.match(DEFAULT_BEHAVIOR, /ask what they would like you to look up|asking what they would like you to look up/i);
});

test('the tool description itself says when not to call it', () => {
  const { tools } = require('../src/utils/imageTool');
  const description = tools[0].function.description;
  assert.match(description, /ONLY when the user's latest message itself asks for a picture/);
  assert.match(description, /is not a request for another one/);
  assert.match(description, /any other language/);
});

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');
});