import { test } from 'node:test'
import assert from 'node:assert/strict'
import { EndpointRouter } from '../src/core/network.ts'

let local = 'https://lan.example.com'
let remote = 'https://api.example.com'
test('蜂窝网络与未知网络不探测内网', async () => {
  for (let type of ['4g', '5g', 'unknown']) {
    let probes = 0
    let r = new EndpointRouter({ local, remote, storeId: 's1' }, async () => { probes++; return 's1' })
    assert.equal(await r.select(type), remote)
    assert.equal(probes, 0)
  }
})
test('Wi-Fi 只有对应门店探测成功才走内网，失败进入冷却', async () => {
  let probes = 0
  let r = new EndpointRouter({ local, remote, storeId: 's1' }, async () => { probes++; return 's2' })
  assert.equal(await r.select('wifi'), remote)
  assert.equal(await r.select('wifi'), remote)
  assert.equal(probes, 1)
  let good = new EndpointRouter({ local, remote, storeId: 's1' }, async () => 's1')
  assert.equal(await good.select('wifi'), local)
})
test('网络切换后丢弃过期内网探测结果', async () => {
  let resolve!: (value: string) => void
  let r = new EndpointRouter({ local, remote, storeId: 's1' }, () => new Promise(res => { resolve = res }))
  let old = r.select('wifi')
  assert.equal(await r.select('4g'), remote)
  resolve('s1')
  assert.equal(await old, remote)
  assert.equal(r.current, remote)
})
test('无网络明确离线；连通失败切回公网', async () => {
  let r = new EndpointRouter({ local, remote, storeId: 's1' }, async () => 's1')
  await assert.rejects(r.select('none'), /网络/)
  await r.select('wifi')
  r.fallback()
  assert.equal(r.current, remote)
})