import { describe, it, expect, vi, beforeEach } from 'vitest'
import { mount, flushPromises } from '@vue/test-utils'
import { defineComponent, h, ref, computed } from 'vue'
import { emptyProviderAddress } from '~/modules/technique/types/providerForm'
import ProviderAddressBlock from '../ProviderAddressBlock.vue'

// Mocks controlables du composable BAN (hoisted), reutilise tel quel du M1/M2.
const { searchCityMock, searchAddressMock } = vi.hoisted(() => ({
    searchCityMock: vi.fn(),
    searchAddressMock: vi.fn(),
}))
vi.mock('~/shared/composables/useAddressAutocomplete', () => ({
    useAddressAutocomplete: () => ({
        searchCity: searchCityMock,
        searchAddress: searchAddressMock,
    }),
}))

// Auto-imports Nuxt/Vue utilises sans import explicite par le composant.
vi.stubGlobal('useI18n', () => ({ t: (key: string) => key }))
vi.stubGlobal('ref', ref)
vi.stubGlobal('computed', computed)

// Stub de MalioInputAutocomplete : expose les `value` des options + allowCreate.
const MalioInputAutocompleteStub = defineComponent({
    name: 'MalioInputAutocomplete',
    props: {
        modelValue: { type: [String, Number, null], default: undefined },
        options: { type: Array as () => { value: string | number, label: string }[], default: () => [] },
        loading: { type: Boolean, default: false },
        minSearchLength: { type: Number, default: 0 },
        label: { type: String, default: '' },
        readonly: { type: Boolean, default: false },
        allowCreate: { type: Boolean, default: false },
    },
    emits: ['update:modelValue', 'search', 'select'],
    setup(props) {
        return () => h('div', {
            'data-testid': 'addr-autocomplete',
            'data-options': JSON.stringify(props.options.map(o => o.value)),
        })
    },
})

function mountBlock(overrides: Record<string, unknown> = {}, errors?: Record<string, string>) {
    return mount(ProviderAddressBlock, {
        props: {
            modelValue: { ...emptyProviderAddress(), ...overrides },
            categoryOptions: [],
            siteOptions: [],
            contactOptions: [],
            countryOptions: [],
            ...(errors ? { errors } : {}),
        },
        global: {
            stubs: {
                MalioButtonIcon: true,
                MalioSelect: true,
                MalioSelectCheckbox: true,
                MalioInputText: true,
                MalioInputAutocomplete: MalioInputAutocompleteStub,
            },
        },
    })
}

describe('ProviderAddressBlock — version simplifiee M3 (pas de type/bennes/triage)', () => {
    it('ne rend NI type d\'adresse, NI bennes, NI prestation de triage (difference M2)', () => {
        const wrapper = mountBlock()
        // Pas de stepper (bennes) ni de case a cocher (triage) dans le bloc M3.
        expect(wrapper.find('malio-input-number-stub').exists()).toBe(false)
        expect(wrapper.find('malio-checkbox-stub').exists()).toBe(false)
        // Aucun select ne porte le label « type d'adresse ».
        const hasAddressType = wrapper.findAll('malio-select-stub').some(
            el => el.attributes('label') === 'technique.providers.form.address.addressType',
        )
        expect(hasAddressType).toBe(false)
    })
})

describe('ProviderAddressBlock — mapping erreur par champ (ERP-101)', () => {
    it('affiche les erreurs serveur sur sites et categories (RG-3.05 / RG-3.09)', () => {
        const wrapper = mountBlock({}, {
            sites: 'Au moins un site est obligatoire.',
            categories: 'Au moins une catégorie est obligatoire.',
        })
        const checkboxes = wrapper.findAll('malio-select-checkbox-stub')
        const sitesField = checkboxes.find(el => el.attributes('label') === 'technique.providers.form.address.sites')
        const categoriesField = checkboxes.find(el => el.attributes('label') === 'technique.providers.form.address.categories')

        expect(sitesField?.attributes('error')).toBe('Au moins un site est obligatoire.')
        expect(categoriesField?.attributes('error')).toBe('Au moins une catégorie est obligatoire.')
    })

    it('affiche l\'erreur serveur sur le code postal', () => {
        const wrapper = mountBlock({}, { postalCode: 'Code postal invalide.' })
        const field = wrapper.findAll('malio-input-text-stub').find(
            el => el.attributes('label') === 'technique.providers.form.address.postalCode',
        )
        expect(field?.attributes('error')).toBe('Code postal invalide.')
    })
})

describe('ProviderAddressBlock — autocompletion BAN (RG-3.06)', () => {
    beforeEach(() => {
        searchCityMock.mockReset()
        searchAddressMock.mockReset()
    })

    it('n\'appelle pas la BAN en deca de 3 caracteres', async () => {
        const wrapper = mountBlock()
        wrapper.findComponent(MalioInputAutocompleteStub).vm.$emit('search', 'ab')
        await flushPromises()
        expect(searchAddressMock).not.toHaveBeenCalled()
    })

    it('relance la recherche apres une erreur (pas de bascule definitive)', async () => {
        searchAddressMock
            .mockRejectedValueOnce(new Error('BAN indisponible'))
            .mockResolvedValueOnce([
                { label: '1 rue du Test, Châtellerault', street: '1 rue du Test', postalCode: '86100', city: 'Châtellerault' },
            ])
        const wrapper = mountBlock()
        const auto = wrapper.findComponent(MalioInputAutocompleteStub)

        auto.vm.$emit('search', 'rue du test')
        await flushPromises()
        auto.vm.$emit('search', 'rue du teste')
        await flushPromises()

        expect(searchAddressMock).toHaveBeenCalledTimes(2)
    })

    it('cas degrade : la BAN echoue -> emet « degraded » une seule fois (RG-3.06)', async () => {
        searchAddressMock.mockRejectedValue(new Error('BAN indisponible'))
        const wrapper = mountBlock()
        const auto = wrapper.findComponent(MalioInputAutocompleteStub)

        auto.vm.$emit('search', 'rue du test')
        await flushPromises()
        auto.vm.$emit('search', 'rue du teste')
        await flushPromises()

        expect(wrapper.emitted('degraded')).toHaveLength(1)
    })

    it('active allow-create sur le champ Adresse (saisie manuelle libre)', () => {
        const wrapper = mountBlock()
        expect(wrapper.findComponent(MalioInputAutocompleteStub).props('allowCreate')).toBe(true)
    })

    it('inclut la rue courante dans les options meme sans recherche BAN', () => {
        const wrapper = mountBlock({ street: '1 rue du Test' })
        const values = JSON.parse(wrapper.find('[data-testid="addr-autocomplete"]').attributes('data-options') ?? '[]')
        expect(values).toContain('1 rue du Test')
    })
})