import { test } from 'node:test';
import assert from 'node:assert/strict';
import { createSummitWalking } from '../src/controls/summitWalking.ts';
import { structurePosition } from '../src/scene/structures.ts';
import { SUMMIT_TERRAIN } from '../src/constants/summitTerrain.ts';

const origin = { latitude: 37.445, longitude: 126.964 };
const walking = createSummitWalking(origin);
const start = structurePosition(SUMMIT_TERRAIN.start.latitude, SUMMIT_TERRAIN.start.longitude, origin);
test('estimated start connects to the mapped public summit route', () => {
  const junction = structurePosition(37.4447614,126.9641235,origin);
  assert.ok(walking.canTraverse(start,junction));
  for (const route of walking.routes) for (let i=1;i<route.points.length;i++) {
    const a=route.points[i-1], b=route.points[i];
    if (walking.inside(a.x,a.z) && walking.inside(b.x,b.z)) assert.ok(walking.canTraverse(a,b),route.id);
  }
});
test('walking cannot cross forest, radar facility or the 200m boundary', () => {
  const radar = structurePosition(37.444028,126.963808,origin);
  assert.equal(walking.walkable(radar.x,radar.z),false);
  assert.equal(walking.walkable(start.x+201,start.z),false);
  assert.equal(walking.canTraverse(start,{x:start.x+80,z:start.z}),false);
  const north=structurePosition(37.4449609,126.9641628,origin);
  const east=structurePosition(37.4448264,126.9646956,origin);
  assert.equal(walking.canTraverse(north,east),false,'cannot cut the corner between valid endpoints');
});

test('summit slab allows lateral movement beside the peak and connects to the lower forecourt', () => {
  // OSM peak is north of the estimated camera; photos show a broad slab, not just a trail.
  const peak = structurePosition(37.4451398,126.9642379,origin);
  const eastSlab = { x: peak.x+7, z: peak.z+4 };
  const westSlab = { x: peak.x-12, z: peak.z+4 };
  assert.ok(walking.canTraverse(westSlab,eastSlab),'cross the upper slab beside the summit marker');
  assert.ok(walking.canTraverse(start,eastSlab),'lower forecourt joins the summit slab');
  const mast = structurePosition(37.4450675,126.9638043,origin);
  assert.equal(walking.walkable(mast.x,mast.z),false,'mast compound remains excluded');
  assert.equal(walking.walkable(peak.x+30,peak.z),false,'eastern cliff is not part of the slab');
});

test('visible summit slab stops at its walking edge and the marker footprint is blocked', () => {
  const outside={x:start.x-32,z:start.z-34};
  assert.equal(walking.onPlatform(outside.x,outside.z),false);
  assert.ok(walking.rockDistance(outside.x,outside.z)>0,'no circular rock patch beyond the slab boundary');
  assert.equal(walking.walkable(start.x-12,start.z-22),false,'cannot walk through the summit stone');
  assert.ok(walking.walkable(start.x-15,start.z-22),'can walk beside the stone');
});