import {describe, expect, it} from 'vitest'
import {mount} from '@vue/test-utils'
import type {DefineComponent} from 'vue'
import InputAmount from './InputAmount.vue'

type InputAmountProps = {
  id?: string
  label?: string
  name?: string
  autocomplete?: string
  modelValue?: string | null
  inputClass?: string
  labelClass?: string
  groupClass?: string
  required?: boolean
  maxLength?: number | string
  minLength?: number | string
  disabled?: boolean
  readonly?: boolean
  hint?: string
  error?: string
  success?: string
  iconName?: string
  iconPosition?: 'left' | 'right'
  iconSize?: string | number
  iconColor?: string
}

const InputAmountForTest = InputAmount as DefineComponent<InputAmountProps>

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

describe('MalioInputAmount', () => {
  it('renders as a text input with decimal input mode', () => {
    const wrapper = mountInputAmount()

    expect(wrapper.get('input').attributes('type')).toBe('text')
    expect(wrapper.get('input').attributes('inputmode')).toBe('decimal')
  })

  it('renders the default icon with muted styling', () => {
    const wrapper = mountInputAmount()

    expect(wrapper.get('[data-test="icon"]').exists()).toBe(true)
    expect(wrapper.get('[data-test="icon"]').classes()).toContain('text-m-muted')
    expect(wrapper.get('[data-test="icon"]').classes()).toContain('right-2')
  })

  it('generates an amount-specific id', () => {
    const wrapper = mountInputAmount({label: 'Montant'})

    const inputId = wrapper.get('input').attributes('id')

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

  it('applies the provided input classes', () => {
    const wrapper = mountInputAmount({inputClass: 'text-right'})

    expect(wrapper.get('input').classes()).toContain('text-right')
  })

  it('links hint text through aria-describedby', () => {
    const wrapper = mountInputAmount({hint: 'Saisissez un montant'})

    const inputId = wrapper.get('input').attributes('id')

    expect(wrapper.get('input').attributes('aria-describedby')).toBe(`${inputId}-describedby`)
    expect(wrapper.get('p').attributes('id')).toBe(`${inputId}-describedby`)
  })

  it('sets aria-invalid and describedby when showing an error', () => {
    const wrapper = mountInputAmount({error: 'Montant invalide'})

    const inputId = wrapper.get('input').attributes('id')

    expect(wrapper.get('input').attributes('aria-invalid')).toBe('true')
    expect(wrapper.get('input').attributes('aria-describedby')).toBe(`${inputId}-describedby`)
    expect(wrapper.get('p.text-m-error').text()).toBe('Montant invalide')
  })

  it('keeps dots as the decimal separator on input', async () => {
    const wrapper = mountInputAmount({modelValue: ''})

    await wrapper.get('input').setValue('12.5')

    expect(wrapper.emitted('update:modelValue')?.[0]).toEqual(['12.5'])
    expect(wrapper.get('input').element.value).toBe('12.5')
  })

  it('accepts commas but normalizes them to dots', async () => {
    const wrapper = mountInputAmount({modelValue: ''})

    await wrapper.get('input').setValue('0012,345abc')

    expect(wrapper.emitted('update:modelValue')?.[0]).toEqual(['12.34'])
    expect(wrapper.get('input').element.value).toBe('12.34')
  })

  it('normalizes a leading decimal separator', async () => {
    const wrapper = mountInputAmount({modelValue: ''})

    await wrapper.get('input').setValue(',5')

    expect(wrapper.emitted('update:modelValue')?.[0]).toEqual(['0.5'])
    expect(wrapper.get('input').element.value).toBe('0.5')
  })

  it('keeps the normalized decimal value on blur', async () => {
    const wrapper = mountInputAmount()
    const input = wrapper.get('input')

    await input.setValue('12.5')
    await input.trigger('blur')

    expect(wrapper.emitted('update:modelValue')).toEqual([['12.5']])
    expect(input.element.value).toBe('12.5')
  })

  it('keeps integer values unchanged on blur', async () => {
    const wrapper = mountInputAmount()
    const input = wrapper.get('input')

    await input.setValue('12')
    await input.trigger('blur')

    expect(wrapper.emitted('update:modelValue')).toEqual([['12']])
    expect(input.element.value).toBe('12')
  })

  it('keeps an empty value empty on blur', async () => {
    const wrapper = mountInputAmount()
    const input = wrapper.get('input')

    await input.setValue('')
    await input.trigger('blur')

    expect(wrapper.emitted('update:modelValue')).toEqual([['']])
    expect(input.element.value).toBe('')
  })

  it('supports icon positioning on the left', () => {
    const wrapper = mountInputAmount({
      label: 'Montant',
      iconPosition: 'left',
    })

    expect(wrapper.get('[data-test="icon"]').classes()).toContain('left-2')
    expect(wrapper.get('input').classes()).toContain('!pl-11')
    expect(wrapper.get('label').classes()).toContain('left-8')
  })
})