import { describe, expect, it } from 'vitest'
import { dedupe } from '../../server/utils/geocoding'

const place = (label: string, lat: number, lon: number) => ({ label, lat, lon })

describe('dedupe', () => {
  it('elimine deux entrees au meme libelle', () => {
    expect(dedupe([place('Lille', 50.63, 3.05), place('lille', 47.1, 2.2)])).toHaveLength(1)
  })

  it('elimine deux entrees a la meme position malgre des libelles differents', () => {
    const r = dedupe([
      place('Bruxelles, Belgique', 50.846, 4.352),
      place('Bruxelles-Capitale, Belgique', 50.848, 4.351),
    ])
    expect(r).toHaveLength(1)
  })

  it('conserve deux villes homonymes reellement distinctes', () => {
    const r = dedupe([place('Lille, France', 50.63, 3.05), place('Lille, Belgique', 50.72, 3.20)])
    expect(r).toHaveLength(2)
  })

  it('preserve l ordre d entree', () => {
    const r = dedupe([place('A', 1, 1), place('B', 2, 2), place('C', 3, 3)])
    expect(r.map(p => p.label)).toEqual(['A', 'B', 'C'])
  })
})