/**
 * AppTopbar.spec.ts
 *
 * Strategy: mount with createPinia(); stub all PrimeVue components so we
 * test only the wiring of store actions to user interactions.
 *
 * Assertions:
 *  1. Hamburger click → shell.setMobileOpen(true)
 *  2. Theme toggle click → shell.setTheme with flipped value (light→dark, dark→light)
 *  3. Density toggle click → shell.setDensity with flipped value
 *  4. User-menu Sign out command → authStore.logout called
 *
 * useBreadcrumb() calls useRoute() internally. We provide a minimal
 * vue-router mock via vi.mock so the composable has a route to call.
 */

import { createPinia, setActivePinia } from 'pinia'
import { mount } from '@vue/test-utils'
import { beforeEach, describe, expect, it, vi } from 'vitest'
import { useShellUiStore } from '@/stores/useShellUiStore'
import { useAuthStore } from '@/stores/useAuthStore'

// ---------------------------------------------------------------------------
// Mock vue-router (useBreadcrumb calls useRoute internally)
// ---------------------------------------------------------------------------

vi.mock('vue-router', () => ({
  useRoute: () => ({
    matched: [],
  }),
  useRouter: () => ({}),
}))

// ---------------------------------------------------------------------------
// Import component AFTER mocks
// ---------------------------------------------------------------------------

// eslint-disable-next-line import/first -- intentional: mocks must precede import
import AppTopbar from '@/components-v2/layout/AppTopbar.vue'

// ---------------------------------------------------------------------------
// Stubs for PrimeVue components
// ---------------------------------------------------------------------------

const globalStubs = {
  Breadcrumb: { name: 'Breadcrumb', props: ['model'], template: '<nav class="breadcrumb-stub" />' },
  InputText: { name: 'InputText', template: '<input class="input-text-stub" />' },
  OverlayBadge: { name: 'OverlayBadge', props: ['value', 'severity'], template: '<div class="overlay-badge-stub"><slot /></div>' },
  Popover: {
    name: 'Popover',
    template: '<div class="popover-stub"><slot /></div>',
    methods: { toggle: vi.fn(), hide: vi.fn() },
  },
  Avatar: {
    name: 'Avatar',
    props: ['label', 'shape', 'pt'],
    template: '<div class="avatar-stub" @click="$emit(\'click\', $event)">{{ label }}</div>',
    emits: ['click'],
  },
  Menu: {
    name: 'Menu',
    props: ['model', 'popup'],
    template: '<div class="menu-stub"><slot name="start" /></div>',
    methods: { toggle: vi.fn(), hide: vi.fn() },
  },
  Icon: { name: 'Icon', props: ['name', 'size'], template: '<span class="icon-stub" :data-name="name" />' },
}

// ---------------------------------------------------------------------------
// Mount helper
// ---------------------------------------------------------------------------

function mountTopbar() {
  return mount(AppTopbar, {
    global: {
      plugins: [createPinia()],
      stubs: globalStubs,
    },
  })
}

// ---------------------------------------------------------------------------
// Tests
// ---------------------------------------------------------------------------

describe('AppTopbar', () => {
  beforeEach(() => {
    setActivePinia(createPinia())
  })

  // -------------------------------------------------------------------------
  // Hamburger → setMobileOpen(true)
  // -------------------------------------------------------------------------

  it('hamburger button click calls shell.setMobileOpen(true)', async () => {
    const wrapper = mountTopbar()
    const shell = useShellUiStore()
    const spy = vi.spyOn(shell, 'setMobileOpen')

    // The hamburger is the first button (aria-label="Open menu")
    const hamburger = wrapper.find('button[aria-label="Open menu"]')

    expect(hamburger.exists()).toBe(true)

    await hamburger.trigger('click')

    expect(spy).toHaveBeenCalledWith(true)
  })

  // -------------------------------------------------------------------------
  // Theme toggle → setTheme with flipped value
  // -------------------------------------------------------------------------

  it('theme toggle flips light → dark', async () => {
    const wrapper = mountTopbar()
    const shell = useShellUiStore()

    shell.theme = 'light'

    const spy = vi.spyOn(shell, 'setTheme')

    const themeBtn = wrapper.find('button[aria-label="Switch to dark mode"]')

    expect(themeBtn.exists()).toBe(true)

    await themeBtn.trigger('click')

    expect(spy).toHaveBeenCalledWith('dark')
  })

  it('theme toggle flips dark → light', async () => {
    const wrapper = mountTopbar()
    const shell = useShellUiStore()

    shell.theme = 'dark'

    const spy = vi.spyOn(shell, 'setTheme')

    // After setting dark we need nextTick so the aria-label computed updates
    await wrapper.vm.$nextTick()

    const themeBtn = wrapper.find('button[aria-label="Switch to light mode"]')

    expect(themeBtn.exists()).toBe(true)

    await themeBtn.trigger('click')

    expect(spy).toHaveBeenCalledWith('light')
  })

  // -------------------------------------------------------------------------
  // Density toggle → setDensity with flipped value
  // -------------------------------------------------------------------------

  it('density toggle flips comfortable → compact', async () => {
    const wrapper = mountTopbar()
    const shell = useShellUiStore()

    shell.density = 'comfortable'

    const spy = vi.spyOn(shell, 'setDensity')

    const densityBtn = wrapper.find('button[aria-label="Switch to compact"]')

    expect(densityBtn.exists()).toBe(true)

    await densityBtn.trigger('click')

    expect(spy).toHaveBeenCalledWith('compact')
  })

  it('density toggle flips compact → comfortable', async () => {
    const wrapper = mountTopbar()
    const shell = useShellUiStore()

    shell.density = 'compact'

    const spy = vi.spyOn(shell, 'setDensity')

    await wrapper.vm.$nextTick()

    const densityBtn = wrapper.find('button[aria-label="Switch to comfortable"]')

    expect(densityBtn.exists()).toBe(true)

    await densityBtn.trigger('click')

    expect(spy).toHaveBeenCalledWith('comfortable')
  })

  // -------------------------------------------------------------------------
  // Sign out → authStore.logout()
  // -------------------------------------------------------------------------

  it('Sign out menu item command calls authStore.logout()', async () => {
    const wrapper = mountTopbar()
    const authStore = useAuthStore()

    // Spy on logout — stub the async to resolve immediately
    const logoutSpy = vi.spyOn(authStore, 'logout').mockResolvedValue()

    // Access the computed userMenuItems exposed on the component's vm
    // The menu items are passed as :model to the stubbed Menu component.
    // We need to find the Sign out item and call its command directly.
    const menuStub = wrapper.findComponent({ name: 'Menu' })

    expect(menuStub.exists()).toBe(true)

    // The model prop is the computed userMenuItems array
    const model = menuStub.props('model') as Array<{ items: Array<{ label: string; command?: () => void }> }>

    // Find Sign out in the nested items groups
    const signOutItem = model
      .flatMap(group => group.items ?? [])
      .find(item => item.label === 'Sign out')

    expect(signOutItem).toBeDefined()
    expect(typeof signOutItem?.command).toBe('function')

    signOutItem?.command?.()

    expect(logoutSpy).toHaveBeenCalledOnce()
  })
})