import {test} from 'node:test';
import assert from 'node:assert/strict';
import {targetRouting, targetLifecycleOffsets} from './target-routing.mjs';

const fixture = targetLifecycleOffsets.map(({id, from, to, x, y1, y2}) => `<g data-graph-role="automatic-crossover" style="--step:9">
<path data-graph-role="automatic-crossover-underlay" d="M ${x} ${y1} L ${x} ${y2}"/>
<path data-edge-from="${from}" data-edge-to="${to}" data-edge-id="${id}" data-composition-points="${x},${y1};${x},${y2}" d="M ${x} ${y1} L ${x} ${y2}" marker-end="url(#arrowhead-emphasis)"/>
</g>`).join('\n');

test('Target adapter shifts precisely four paths, masks and composition points', () => {
  const unrelated = '<path data-edge-id="govern-architecture" d="M 600 450 L 870 262.5"/><g data-node-id="agent"/>';
  const output = targetRouting(fixture + unrelated);
  assert(output.endsWith(unrelated));
  let restored = output;
  for (const {x, shiftedX, y1, y2} of targetLifecycleOffsets) {
    assert.equal(output.split(`d="M ${shiftedX} ${y1} L ${shiftedX} ${y2}"`).length, 3);
    assert(output.includes(`data-composition-points="${shiftedX},${y1};${shiftedX},${y2}"`));
    restored = restored.replaceAll(`d="M ${shiftedX} ${y1} L ${shiftedX} ${y2}"`, `d="M ${x} ${y1} L ${x} ${y2}"`)
      .replace(`data-composition-points="${shiftedX},${y1};${shiftedX},${y2}"`, `data-composition-points="${x},${y1};${x},${y2}"`);
  }
  assert.equal(restored, fixture + unrelated, 'all other bytes preserved');
});

test('Target adapter fails closed on missing, duplicate, moved or changed native edges', () => {
  for (const changed of [fixture.replace('stage-2', 'missing'), fixture + fixture,
    fixture.replace('870 262.5', '871 262.5'), fixture.replace('870,262.5', '871,262.5'),
    fixture.replace('data-edge-from="architecture"', 'data-edge-from="scope"'),
    fixture.replace('automatic-crossover-underlay', 'unknown')]) {
    assert.throws(() => targetRouting(changed), /Target routing drift/);
  }
  assert.throws(() => targetRouting(targetRouting(fixture)), /Target routing drift/);
});