import { beforeEach, describe, expect, it, vi } from 'vitest'
import { createPinia, setActivePinia } from 'pinia'
import { WORKSPACE_TAB_LIMIT, readWorkspaceTabsSnapshot, useWorkspaceTabsStore } from './workspaceTabs'

describe('workspace tabs store', () => {
  beforeEach(() => {
    sessionStorage.clear()
    setActivePinia(createPinia())
    vi.restoreAllMocks()
  })

  it('keeps one tab per route name and restores it only for the same account', () => {
    vi.spyOn(Date, 'now').mockReturnValueOnce(10).mockReturnValueOnce(20)
    const store = useWorkspaceTabsStore()
    store.initialize('user-a')
    store.open({ id: 'customers', title: '客户管理', path: '/customers' })
    store.open({ id: 'customers', title: '客户详情', path: '/customers/10001' })

    expect(store.tabs).toEqual([{ id: 'customers', title: '客户详情', path: '/customers/10001', lastVisitedAt: 20 }])
    expect(readWorkspaceTabsSnapshot('user-a').activeId).toBe('customers')
    expect(readWorkspaceTabsSnapshot('user-b').tabs).toEqual([])
  })

  it('evicts the least recently used clean inactive tab at the soft limit', () => {
    let now = 0
    vi.spyOn(Date, 'now').mockImplementation(() => ++now)
    const store = useWorkspaceTabsStore()
    store.initialize('user-a')
    for (let index = 0; index < WORKSPACE_TAB_LIMIT; index += 1) {
      store.open({ id: `route-${index}`, title: `页面 ${index}`, path: `/route-${index}` })
    }

    store.open({ id: 'route-new', title: '新页面', path: '/route-new' }, new Set(['route-0']))

    expect(store.tabs).toHaveLength(WORKSPACE_TAB_LIMIT)
    expect(store.tabs.some((tab) => tab.id === 'route-0')).toBe(true)
    expect(store.tabs.some((tab) => tab.id === 'route-1')).toBe(false)
    expect(store.activeId).toBe('route-new')
  })

  it('falls back to the most recently visited remaining tab and rotates the closed cache key', () => {
    vi.spyOn(Date, 'now').mockReturnValueOnce(10).mockReturnValueOnce(20).mockReturnValueOnce(30)
    const store = useWorkspaceTabsStore()
    store.initialize('user-a')
    store.open({ id: 'customers', title: '客户', path: '/customers' })
    store.open({ id: 'warehouses', title: '仓库', path: '/warehouses' })
    store.open({ id: 'pallets', title: '托盘', path: '/pallets' })
    const previousKey = store.cacheKey('pallets')

    const fallback = store.removeByIds(['pallets'])

    expect(fallback?.id).toBe('warehouses')
    expect(store.activeId).toBe('warehouses')
    expect(store.cacheKey('pallets')).not.toBe(previousKey)
  })

  it('drops corrupt persisted data instead of breaking application startup', () => {
    sessionStorage.setItem('cc-admin-workspace-tabs:v1:user-a', '{broken')
    expect(readWorkspaceTabsSnapshot('user-a')).toEqual({ tabs: [], activeId: null })
  })
})