import { describe, expect, it } from 'bun:test'
import { mergeMemberPreview } from './member-preview.ts'
import type { ProxyInfo } from './api.ts'

const info = (name: string) => ({ name, type: 'Vmess' }) as ProxyInfo
const noLookup = () => undefined

describe('成员预览', () => {
  it('草稿和现状一致时谁都不标', () => {
    const cards = mergeMemberPreview([{ name: 'A', info: info('A') }], ['A'], noLookup)
    expect(cards).toEqual([{ name: 'A', info: info('A'), removed: false, added: false }])
  })

  it('不在保存后名单里的现有成员标为将移除', () => {
    const cards = mergeMemberPreview(
      [
        { name: 'A', info: info('A') },
        { name: 'B', info: info('B') },
      ],
      ['B'],
      noLookup,
    )
    expect(cards.map((c) => [c.name, c.removed])).toEqual([
      ['A', true],
      ['B', false],
    ])
  })

  it('新增的追加在末尾，线路信息从 lookup 取', () => {
    const cards = mergeMemberPreview([{ name: 'A', info: info('A') }], ['A', 'C'], info)
    expect(cards[1]).toEqual({ name: 'C', info: info('C'), removed: false, added: true })
  })

  it('现有成员保持原序在前，新增按保存后名单的顺序在后', () => {
    // 顺序稳定才不会出现「改一个筛选，卡片全部跳位」
    const cards = mergeMemberPreview(
      [
        { name: 'B', info: undefined },
        { name: 'A', info: undefined },
      ],
      ['C', 'A', 'D'],
      noLookup,
    )
    expect(cards.map((c) => c.name)).toEqual(['B', 'A', 'C', 'D'])
  })
})