import {describe, expect, it} from 'vitest'
import {mount} from '@vue/test-utils'
import type {DefineComponent} from 'vue'
import { Icon as IconifyIcon } from '@iconify/vue'
import InputUpload from './InputUpload.vue'

type InputUploadProps = {
  id?: string
  label?: string
  modelValue?: string | null
  inputClass?: string
  labelClass?: string
  groupClass?: string
  disabled?: boolean
  hint?: string
  error?: string
  success?: string
  displayIcon?: boolean
  accept?: string
}

const InputUploadForTest = InputUpload as DefineComponent<InputUploadProps>

const mountComponent = (props: InputUploadProps = {}) =>
  mount(InputUploadForTest, {
    props,
    global: {
      stubs: {
        IconifyIcon: {
          template: '<span data-test="icon" v-bind="$attrs" />',
        },
      },
    },
  })

describe('MalioInputUpload', () => {
  it('renders the initial display value', () => {
    const wrapper = mountComponent({modelValue: 'document.pdf'})

    expect(wrapper.get('input[type="text"]').element.value).toBe('document.pdf')
  })

  it('renders the label text', () => {
    const wrapper = mountComponent({label: 'Téléverser un fichier'})

    expect(wrapper.get('label').text()).toBe('Téléverser un fichier')
  })

  it('has a hidden file input', () => {
    const wrapper = mountComponent()

    expect(wrapper.find('input[type="file"]').exists()).toBe(true)
    expect(wrapper.find('input[type="file"]').classes()).toContain('hidden')
  })

  it('text input is readonly', () => {
    const wrapper = mountComponent()

    expect(wrapper.get('input[type="text"]').attributes('readonly')).toBeDefined()
  })

  it('renders icon by default', () => {
    const wrapper = mountComponent()

    expect(wrapper.find('[data-test="icon"]').exists()).toBe(true)
  })

  it('does not render icon when displayIcon is false', () => {
    const wrapper = mountComponent({displayIcon: false})

    expect(wrapper.find('[data-test="icon"]').exists()).toBe(false)
  })

  it('shows the correct upload icon', () => {
    const wrapper = mountComponent()

    const iconComponent = wrapper.findComponent(IconifyIcon)
    expect(iconComponent.props('icon')).toBe('mdi:cloud-arrow-up-outline')
  })

  it('emits update:modelValue when a file is selected', async () => {
    const wrapper = mountComponent({modelValue: ''})
    const fileInput = wrapper.find('input[type="file"]')
    const file = new File(['content'], 'test.pdf', {type: 'application/pdf'})

    Object.defineProperty(fileInput.element, 'files', {
      value: [file],
    })
    await fileInput.trigger('change')

    expect(wrapper.emitted('update:modelValue')?.[0]).toEqual(['test.pdf'])
  })

  it('emits file-selected with the File object when a file is selected', async () => {
    const wrapper = mountComponent({modelValue: ''})
    const fileInput = wrapper.find('input[type="file"]')
    const file = new File(['content'], 'test.pdf', {type: 'application/pdf'})

    Object.defineProperty(fileInput.element, 'files', {
      value: [file],
    })
    await fileInput.trigger('change')

    expect(wrapper.emitted('file-selected')?.[0]).toEqual([file])
  })

  it('sets disabled on both inputs when disabled is true', () => {
    const wrapper = mountComponent({disabled: true})

    expect(wrapper.get('input[type="text"]').attributes('disabled')).toBeDefined()
    expect(wrapper.get('input[type="file"]').attributes('disabled')).toBeDefined()
    expect(wrapper.get('input[type="text"]').classes()).toContain('cursor-not-allowed')
  })

  it('shows error message and styles', () => {
    const wrapper = mountComponent({error: 'Fichier requis'})

    expect(wrapper.get('p.text-m-danger').text()).toBe('Fichier requis')
    expect(wrapper.get('input[type="text"]').classes()).toContain('border-m-danger')
    expect(wrapper.get('input[type="text"]').attributes('aria-invalid')).toBe('true')
  })

  it('shows error style on icon', () => {
    const wrapper = mountComponent({error: 'Error'})

    expect(wrapper.get('[data-test="icon"]').classes()).toContain('text-m-danger')
  })

  it('shows success message and styles', () => {
    const wrapper = mountComponent({success: 'Fichier valide'})

    expect(wrapper.get('p.text-m-success').text()).toBe('Fichier valide')
    expect(wrapper.get('input[type="text"]').classes()).toContain('border-m-success')
  })

  it('shows success style on icon', () => {
    const wrapper = mountComponent({success: 'Success'})

    expect(wrapper.get('[data-test="icon"]').classes()).toContain('text-m-success')
  })

  it('shows hint message', () => {
    const wrapper = mountComponent({hint: 'PDF uniquement'})

    expect(wrapper.get('p.text-m-muted').text()).toBe('PDF uniquement')
  })

  it('links label to input via for/id', () => {
    const wrapper = mountComponent({id: 'upload', label: 'Fichier'})

    expect(wrapper.get('input[type="text"]').attributes('id')).toBe('upload')
    expect(wrapper.get('label').attributes('for')).toBe('upload')
  })

  it('generates an id when missing and reuses it on label', () => {
    const wrapper = mountComponent({label: 'Fichier'})

    const inputId = wrapper.get('input[type="text"]').attributes('id')

    expect(inputId?.startsWith('malio-input-upload-')).toBe(true)
    expect(wrapper.get('label').attributes('for')).toBe(inputId)
  })

  it('aria-invalid is false when no error', () => {
    const wrapper = mountComponent()

    expect(wrapper.get('input[type="text"]').attributes('aria-invalid')).toBe('false')
  })

  it('passes accept attribute to file input', () => {
    const wrapper = mountComponent({accept: '.pdf,.doc'})

    expect(wrapper.get('input[type="file"]').attributes('accept')).toBe('.pdf,.doc')
  })
})