// PROCITY citygen — canonical Lane A public entry point (barrel).
//
// Consumers import the whole CityGen API from here (not from plan.js directly), e.g. Lane B's shell:
//   const citygen = await import('./js/citygen/index.js');  citygen.generatePlan(seed) → CityPlan
// Keep this the stable import surface for the lane; internals may move between files behind it.
//
// (Originated as a Lane F integration shim because the shell imports ./js/citygen/index.js while the
//  generator ships as plan.js; adopted here as the real Lane A entry point, per the shim's own note.)

export { generatePlan, chunkIndex, chunkKey, CHUNK, lotCorners, obbOverlap } from './plan.js';
export { shopName, townName } from './names.js';
export { generatePlanOSM, osmTownKeys } from './plan_osm.js';

// planSource selector (round 6; multi-town round 8). Default 'synthetic' → the byte-identical
// golden-hash generator; 'osm' → the real-data fixture importer. Lane F wires ?plansrc=osm (+ optional
// &town=<key>) to these args so the shell bootstrap picks the producer/town without B–F caring which
// ran. Unknown source → synthetic; unknown town → the default town.
import { generatePlan as _synth } from './plan.js';
import { generatePlanOSM as _osm } from './plan_osm.js';
export function generatePlanFor(seed, source = 'synthetic', opts = {}) {
  return source === 'osm' ? _osm(seed, opts.town, opts) : _synth(seed);
}

// Convenience default so `citygen.default` also resolves to the (synthetic) generator.
export { generatePlan as default } from './plan.js';