import { flushPromises, mount, type VueWrapper } from '@vue/test-utils'
import { afterEach, describe, expect, it } from 'vitest'
import { NImage } from 'naive-ui'
import AssetImage from '@/components/ui/AssetImage.vue'

let wrapper: VueWrapper | undefined
afterEach(() => {
    wrapper?.unmount()
    wrapper = undefined
    document.body.innerHTML = ''
})

describe('资源图片展示与原图预览', () => {
    it('默认使用 cover 并禁用预览，不干扰历史缩略图选择', async () => {
        wrapper = mount(AssetImage, {
            attachTo: document.body,
            props: { src: '/storage/history.png', alt: '历史图片' }
        })
        expect(wrapper.getComponent(NImage).props()).toMatchObject({ objectFit: 'cover', previewDisabled: true })
        expect(wrapper.get<HTMLImageElement>('img').element.style.objectFit).toBe('cover')
        await wrapper.get('img').trigger('click')
        await flushPromises()
        expect(document.querySelector('.n-image-preview-container')).toBeNull()
    })

    it('特殊展示仍可显式选择 contain，样式交由 NImage 控制', () => {
        wrapper = mount(AssetImage, {
            props: { src: '/storage/reference.png', alt: '完整参考图', objectFit: 'contain' }
        })
        expect(wrapper.getComponent(NImage).props('objectFit')).toBe('contain')
        expect(wrapper.get<HTMLImageElement>('img').element.style.objectFit).toBe('contain')
    })

    it('cover 仅裁切卡片，点击使用 Naive 原生预览展示同一完整资源，遮罩可关闭', async () => {
        wrapper = mount(AssetImage, {
            attachTo: document.body,
            props: { src: '/storage/original.png', alt: '林默 · 基础形态', objectFit: 'cover', preview: true }
        })
        const source = wrapper.get('img').attributes('src')
        expect(wrapper.getComponent(NImage).props()).toMatchObject({
            objectFit: 'cover',
            previewDisabled: false,
            previewSrc: source
        })
        expect(wrapper.get<HTMLImageElement>('img').element.style.objectFit).toBe('cover')
        await wrapper.get('img').trigger('click')
        await flushPromises()
        const image = document.querySelector<HTMLImageElement>('.n-image-preview')!
        expect(image).not.toBeNull()
        expect(image.getAttribute('src')).toBe(source)
        expect(image.alt).toBe('林默 · 基础形态')
        expect(image.getAttribute('referrerpolicy')).toBe('no-referrer')
        expect(image.style.objectFit).not.toBe('cover')
        expect(document.querySelector('.n-image-preview-toolbar')).not.toBeNull()
        expect(wrapper.element.contains(image)).toBe(false)
        document.querySelector<HTMLElement>('.n-image-preview-overlay')!.click()
        await flushPromises()
        expect(document.querySelector<HTMLElement>('.n-image-preview-wrapper')?.style.display ?? 'none').toBe('none')
    })

    it('资源加载失败只显示重试占位，不打开空预览', async () => {
        wrapper = mount(AssetImage, {
            attachTo: document.body,
            props: { src: '/storage/missing.png', alt: '失败图片', objectFit: 'cover', preview: true }
        })
        await wrapper.get('img').trigger('error')
        expect(wrapper.text()).toContain('图片无法加载')
        expect(wrapper.findComponent(NImage).exists()).toBe(false)
        expect(document.querySelector('.n-image-preview-container')).toBeNull()
        await wrapper.get('button').trigger('click')
        expect(wrapper.getComponent(NImage).props('previewDisabled')).toBe(false)
    })

    it.each([null, 'javascript:alert(1)', 'data:text/html,test'])('空地址或危险地址 %s 不进入原图预览', src => {
        wrapper = mount(AssetImage, { props: { src, alt: '图片', objectFit: 'cover', preview: true } })
        expect(wrapper.findComponent(NImage).exists()).toBe(false)
        expect(wrapper.find('img').exists()).toBe(false)
    })
})