import { flushPromises, mount } from '@vue/test-utils'
import { beforeEach, describe, expect, it, vi } from 'vitest'
import TransportRouteDialog from './TransportRouteDialog.vue'
import { resolveRouteLocation, routeLocation, RouteAddressError, type RouteLocation } from '../routeLocations'
vi.mock('../routeLocations', async importOriginal => ({ ...await importOriginal<object>(), resolveRouteLocation: vi.fn() }))
const global = { stubs: {
  AppDialog: { template: '<div><slot /></div>' }, ElButton: { template: '<button><slot /></button>' }, ElLink: { template: '<a><slot /></a>' },
  LoadErrorState: { props: ['message'], template: '<p role="alert">{{ message }}</p>' }, ApiErrorMeta: true,
  ElSelect: { props: ['modelValue'], emits: ['update:modelValue'], template: '<select :value="modelValue" @change="$emit(\'update:modelValue\', Number($event.target.value))"><slot /></select>' },
  ElOption: { props: ['label', 'value'], template: '<option :value="value">{{ label }}</option>' },
} }
const endpoints = { origin: { kind: 'warehouse', label: '洛杉矶仓', warehouseId: '123' } as RouteLocation, destinations: [routeLocation('ABE3'), routeLocation('ONT8')] }
const addresses: Record<string, string> = { '洛杉矶仓': '100 Example Street, Los Angeles, CA, US', ABE3: '200 Example Road, Example City, PA, 18000, US', ONT8: '300 Example Avenue, Ontario, CA, US' }
beforeEach(() => { vi.mocked(resolveRouteLocation).mockReset().mockImplementation(async location => location.kind === 'address' ? location.address : addresses[location.label]!) })
describe('transport route address resolution', () => {
  it('does not query until opened and sends full addresses to both map URLs', async () => {
    const wrapper = mount(TransportRouteDialog, { props: { ...endpoints, modelValue: false }, global })
    expect(resolveRouteLocation).not.toHaveBeenCalled()
    await wrapper.setProps({ modelValue: true }); await flushPromises()
    const embedded = new URL(wrapper.get('iframe').attributes('src')!)
    const external = new URL(wrapper.get('a').attributes('href')!)
    expect(embedded.searchParams.get('saddr')).toBe(addresses['洛杉矶仓'])
    expect(embedded.searchParams.get('daddr')).toBe(addresses.ABE3)
    expect(external.searchParams.get('destination')).toBe(addresses.ABE3)
    expect(wrapper.text()).toContain('目的地地址：' + addresses.ABE3)
    expect(resolveRouteLocation).toHaveBeenCalledTimes(2)
    const iframe = wrapper.get('iframe').element
    await wrapper.findAll('button').find(button => button.text() === '重新加载地图')!.trigger('click')
    expect(wrapper.get('iframe').element).not.toBe(iframe)
    expect(resolveRouteLocation).toHaveBeenCalledTimes(2)
    await wrapper.setProps({ modelValue: false })
    expect(wrapper.find('iframe').exists()).toBe(false)
    wrapper.unmount()
  })
  it('resolves only the selected warehouse and reuses the origin for another destination', async () => {
    const wrapper = mount(TransportRouteDialog, { props: { ...endpoints, modelValue: true }, global }); await flushPromises()
    await wrapper.get('select').setValue('1'); await flushPromises()
    expect(new URL(wrapper.get('iframe').attributes('src')!).searchParams.get('daddr')).toBe(addresses.ONT8)
    expect(resolveRouteLocation).toHaveBeenCalledTimes(3)
    wrapper.unmount()
  })
  it('never leaves the previous map visible while resolving a new destination, and ignores late results', async () => {
    let finish!: (value: string) => void
    vi.mocked(resolveRouteLocation).mockImplementation(location => location.label === 'ABE3' ? new Promise(resolve => { finish = resolve }) : Promise.resolve(addresses[location.label]!))
    const wrapper = mount(TransportRouteDialog, { props: { ...endpoints, modelValue: true }, global })
    expect(wrapper.find('iframe').exists()).toBe(false)
    await wrapper.get('select').setValue('1'); await flushPromises()
    finish('stale address'); await flushPromises()
    expect(new URL(wrapper.get('iframe').attributes('src')!).searchParams.get('daddr')).toBe(addresses.ONT8)
    await wrapper.setProps({ modelValue: false }); await flushPromises()
    expect(wrapper.find('iframe').exists()).toBe(false)
    wrapper.unmount()
  })
  it('shows missing address errors instead of falling back to a warehouse code', async () => {
    vi.mocked(resolveRouteLocation).mockRejectedValue(new RouteAddressError('ABE3缺少完整仓库地址'))
    const wrapper = mount(TransportRouteDialog, { props: { ...endpoints, modelValue: true }, global }); await flushPromises()
    expect(wrapper.text()).toContain('ABE3缺少完整仓库地址')
    expect(wrapper.find('iframe').exists()).toBe(false); expect(wrapper.find('a').exists()).toBe(false)
    wrapper.unmount()
  })
  it('does not request missing endpoints', async () => {
    const wrapper = mount(TransportRouteDialog, { props: { origin: routeLocation(''), destinations: [], modelValue: true }, global }); await flushPromises()
    expect(resolveRouteLocation).not.toHaveBeenCalled()
    expect(wrapper.text()).toContain('缺少起点或目的地')
    wrapper.unmount()
  })
})