// Owned desktop-only integration, applied AFTER native artifact verification.
// Native architecture JSON has no per-edge attachment offset. Keep the central
// governance ports native; shift only these lifecycle channels on the same sides.
export const targetLifecycleOffsets = [
  {id:'stage-2', from:'architecture', to:'ui-ux', x:870, shiftedX:850, y1:262.5, y2:457.5},
  {id:'stage-3', from:'ui-ux', to:'planning', x:870, shiftedX:850, y1:532.5, y2:727.5},
  {id:'stage-6', from:'uat', to:'security', x:330, shiftedX:350, y1:727.5, y2:532.5},
  {id:'stage-7', from:'security', to:'releases', x:330, shiftedX:350, y1:457.5, y2:262.5},
];

export function targetRouting(viewer) {
  for (const {id, from, to, x, shiftedX, y1, y2} of targetLifecycleOffsets) {
    const oldPath = `M ${x} ${y1} L ${x} ${y2}`;
    const newPath = `M ${shiftedX} ${y1} L ${shiftedX} ${y2}`;
    const oldPoints = `${x},${y1};${x},${y2}`;
    const newPoints = `${shiftedX},${y1};${shiftedX},${y2}`;
    // Match the whole native crossover group: its mask must move with the edge.
    // Trace/export use this actual path; composition checks use its point list.
    const groups = [...viewer.matchAll(/<g data-graph-role="automatic-crossover"[^>]*>\s*<path\b[^>]*\/>\s*<path\b[^>]*\/>\s*<\/g>/g)]
      .filter(([group]) => group.includes(`data-edge-id="${id}"`));
    if (groups.length !== 1) throw new Error(`Target routing drift: ${id} group`);
    const group = groups[0][0];
    for (const attribute of [`data-edge-from="${from}"`, `data-edge-to="${to}"`, `data-composition-points="${oldPoints}"`, 'data-graph-role="automatic-crossover-underlay"']) {
      if (!group.includes(attribute)) throw new Error(`Target routing drift: ${id} ${attribute}`);
    }
    if (group.split(`d="${oldPath}"`).length !== 3) throw new Error(`Target routing drift: ${id} paths`);
    const shifted = group.replaceAll(`d="${oldPath}"`, `d="${newPath}"`)
      .replace(`data-composition-points="${oldPoints}"`, `data-composition-points="${newPoints}"`);
    viewer = viewer.replace(group, shifted);
  }
  return viewer;
}