// A model that leaves the roster has to leave every list that names it. The
// allowed lists are advisory copies of the roster; the roster is the fact. A
// stale id there is invisible until someone asks a clinical question and the
// request fails at the gateway.
const test = require('node:test');
const assert = require('node:assert/strict');
const fs = require('node:fs');
const path = require('node:path');

const route = fs.readFileSync(path.join(__dirname, '..', 'src/routes/adminConfig.js'), 'utf8');

test('one helper owns forgetting a model, and covers every list that names one', () => {
  assert.match(route, /async function forgetModelEverywhere\(ids\)/);
  for (const key of ['clinical_assistant.allowed_models',
                     'clinical_assistant.allowed_image_models',
                     'clinical_assistant.image_model_roster']) {
    assert.ok(route.includes("'" + key + "'"), key + ' is not pruned');
  }
  // And a default pointing at a model that has gone.
  assert.match(route, /gone\.indexOf\(current\) !== -1\) await db\.setSetting\('models\.default', ''\)/);
});

test('removing a custom model prunes it', () => {
  const handler = route.slice(route.indexOf("router.delete('/config/models/custom"));
  assert.match(handler.slice(0, 900), /await forgetModelEverywhere\(modelId\)/);
});

test('disabling a model prunes it too — it stops being selectable either way', () => {
  const handler = route.slice(route.indexOf("router.put('/config/models/toggle"));
  assert.match(handler.slice(0, 1600), /if \(!enabled\) await forgetModelEverywhere\(modelId\)/);
  // Re-enabling must NOT silently re-allow it: that is a separate decision.
  assert.doesNotMatch(handler.slice(0, 1600), /if \(enabled\) await forgetModelEverywhere/);
});

test('clearing every model clears every allowed list', () => {
  const handler = route.slice(route.indexOf("router.post('/config/models/clear-all"));
  assert.match(handler.slice(0, 900), /await db\.setSetting\(key, ''\)/);
  assert.match(handler.slice(0, 900), /Nothing is on the roster any more/);
});

test('a list is only written when it actually changed', () => {
  // Avoids a settings write, an updated_at bump and a cache refresh per removal
  // when nothing referenced the model.
  const fn = route.slice(route.indexOf('async function forgetModelEverywhere'));
  assert.match(fn.slice(0, 1200), /if \(kept\.join\(','\) !== current\)/);
});