import { describe, expect, it } from 'vitest'
import { compileNavigationScene } from '@/domain/navigationScene'
import type { GuideRouteResult } from '@/domain/museum'

const route = (floorIds: string[]): GuideRouteResult => ({
  id: 'route-1',
  distanceMeters: 42,
  nodeIds: [],
  points: [],
  connectorPoints: [],
  start: {
    poiId: 'start', name: '起点', floorId: floorIds[0], floorLabel: floorIds[0], position: [0, 0, 0]
  },
  end: {
    poiId: 'end', name: '终点', floorId: floorIds[floorIds.length - 1] || '', floorLabel: floorIds[floorIds.length - 1] || '', position: [1, 0, 1]
  },
  floorSegments: floorIds.map((floorId, index) => ({
    floorId,
    floorLabel: floorId,
    points: [{ nodeId: `${floorId}-${index}`, floorId, position: [index, 0, index] as [number, number, number] }]
  }))
})

describe('compileNavigationScene', () => {
  it('keeps a same-floor route in its normal floor scene', () => {
    expect(compileNavigationScene(route(['L1']))).toMatchObject({
      kind: 'single-floor',
      floorIds: ['L1'],
      transitionCount: 0
    })
  })

  it('uses an expanded route scene for a vertical cross-floor route', () => {
    expect(compileNavigationScene(route(['L1', 'L2']))).toMatchObject({
      kind: 'multi-floor',
      floorIds: ['L1', 'L2'],
      transitionCount: 1
    })
  })

  it('uses the declared L1 plus exterior composite only for its exact coverage', () => {
    const assets = [{
      role: 'same-ground-composite' as const,
      modelUrl: '/models/l1-exterior.glb',
      coverageFloorCodes: ['L1', 'EXTERIOR'],
      coverageFloorIds: ['L1', 'EXTERIOR']
    }]

    expect(compileNavigationScene(route(['L1', 'EXTERIOR']), assets).kind).toBe('same-ground-composite')
    expect(compileNavigationScene(route(['L1', 'L2', 'EXTERIOR']), assets).kind).toBe('multi-floor')
  })
})