import assert from 'node:assert/strict'
import test from 'node:test'
import { computed } from 'vue'
import { useAdminMarkdownMediaPicker } from '../composables/useAdminMarkdownMediaPicker.js'

const uploadSizeLimits = computed(() => ({
  image: 10485760,
  video: 209715200,
  audio: 52428800,
  document: 52428800
}))

test('관리자 Markdown 미디어 선택 모달은 열기와 닫기 상태를 관리한다', () => {
  const picker = useAdminMarkdownMediaPicker({ uploadSizeLimits })

  picker.openMediaPickerState('gallery')

  assert.equal(picker.isMediaPickerOpen.value, true)
  assert.equal(picker.mediaPickerTarget.value, 'gallery')
  assert.equal(picker.activeMediaPickerTab.value, 'upload')
  assert.equal(picker.mediaSearchQuery.value, '')
  assert.equal(picker.mediaPickerPage.value, 1)
  assert.deepEqual(picker.selectedMediaUrls.value, [])
  assert.equal(picker.isGalleryMediaPicker.value, true)
  assert.equal(picker.mediaPickerAccept.value, 'image/*')
  assert.equal(picker.mediaPickerTitle.value, '갤러리 이미지 선택')

  assert.equal(picker.closeMediaPickerState(), true)
  assert.equal(picker.isMediaPickerOpen.value, false)
  assert.equal(picker.activeMediaPickerTab.value, 'upload')
  assert.deepEqual(picker.mediaItems.value, [])
})

test('관리자 Markdown 미디어 선택 모달은 업로드 중 닫기를 막는다', () => {
  const picker = useAdminMarkdownMediaPicker({ uploadSizeLimits })

  picker.openMediaPickerState('image')
  picker.isUploading.value = true

  assert.equal(picker.closeMediaPickerState(), false)
  assert.equal(picker.isMediaPickerOpen.value, true)
})

test('관리자 Markdown 미디어 선택 모달은 API 응답과 페이지를 상태에 반영한다', () => {
  const picker = useAdminMarkdownMediaPicker({ uploadSizeLimits, pageSize: 20 })

  picker.applyMediaPickerResponse({
    items: [{ url: '/uploads/a.png' }],
    pagination: {
      page: 3,
      pageSize: 20,
      total: 42,
      pageCount: 3
    }
  })

  assert.equal(picker.mediaPickerPage.value, 3)
  assert.equal(picker.mediaPickerPageCount.value, 3)
  assert.equal(picker.mediaPickerRangeLabel.value, '42개 중 41-42개')
  assert.deepEqual(picker.filteredMediaItems.value, [{ url: '/uploads/a.png' }])

  picker.setMediaPickerPage(99)

  assert.equal(picker.mediaPickerPage.value, 3)
})

test('관리자 Markdown 미디어 선택 모달은 단일·갤러리 선택을 관리한다', () => {
  const picker = useAdminMarkdownMediaPicker({ uploadSizeLimits })

  picker.openMediaPickerState('image')
  picker.mediaItems.value = [
    { url: '/uploads/a.png' },
    { url: '/uploads/b.png' }
  ]
  picker.toggleMediaSelection({ url: '/uploads/a.png' })
  picker.toggleMediaSelection({ url: '/uploads/b.png' })

  assert.deepEqual(picker.selectedMediaUrls.value, ['/uploads/b.png'])
  assert.deepEqual(picker.resolveCurrentSelectedMediaItems(), [{ url: '/uploads/b.png' }])

  picker.openMediaPickerState('gallery')
  picker.toggleMediaSelection({ url: '/uploads/a.png' })
  picker.toggleMediaSelection({ url: '/uploads/b.png' })

  assert.deepEqual(picker.selectedMediaUrls.value, ['/uploads/a.png', '/uploads/b.png'])
  assert.equal(picker.getGallerySelectionOrder('/uploads/b.png'), 2)
  assert.deepEqual(picker.mediaPickerApplyState.value, {
    disabled: false,
    label: '2개 삽입'
  })
})

test('관리자 Markdown 미디어 선택 모달은 업로드 파일 선택 상태와 fallback 목록을 만든다', () => {
  const picker = useAdminMarkdownMediaPicker({ uploadSizeLimits })

  picker.openMediaPickerState('image')
  picker.selectUploadedMediaFiles([
    { url: '/uploads/a.png', kind: 'image' },
    { url: '/uploads/a.mp4', kind: 'video' }
  ])

  assert.deepEqual(picker.selectedMediaUrls.value, ['/uploads/a.png'])

  picker.prependUploadedMediaItems([{ url: '/uploads/a.png' }])

  assert.deepEqual(picker.mediaItems.value, [{ url: '/uploads/a.png' }])
  assert.equal(picker.isUploadFileAllowedForPicker({ type: 'image/png' }), true)
  assert.equal(picker.isUploadFileAllowedForPicker({ type: 'video/mp4' }), false)
})

test('관리자 Markdown 미디어 선택 모달은 서버 목록 조회를 상태에 반영한다', async () => {
  const originalFetch = globalThis.$fetch
  const calls = []
  globalThis.$fetch = async (url, options) => {
    calls.push({ url, options })
    return {
      items: [{ url: '/uploads/a.png', kind: 'image' }],
      pagination: {
        page: 2,
        pageSize: 20,
        total: 21,
        pageCount: 2
      }
    }
  }

  try {
    const picker = useAdminMarkdownMediaPicker({ uploadSizeLimits, pageSize: 20 })
    picker.openMediaPickerState('image')
    picker.mediaSearchQuery.value = '  a  '
    picker.mediaPickerPage.value = 2

    await picker.fetchMediaItems()

    assert.equal(picker.isLoadingMedia.value, false)
    assert.deepEqual(picker.mediaItems.value, [{ url: '/uploads/a.png', kind: 'image' }])
    assert.equal(picker.mediaPickerPage.value, 2)
    assert.deepEqual(calls[0], {
      url: '/admin/api/media',
      options: {
        query: {
          paged: '1',
          tab: 'library',
          page: 2,
          pageSize: 20,
          kind: 'image',
          search: 'a'
        }
      }
    })
  } finally {
    globalThis.$fetch = originalFetch
  }
})

test('관리자 Markdown 미디어 선택 모달은 업로드 후 라이브러리 탭과 선택 상태를 갱신한다', async () => {
  const originalFetch = globalThis.$fetch
  const uploadedFile = { url: '/uploads/a.png', kind: 'image' }
  const calls = []
  globalThis.$fetch = async (url, options) => {
    calls.push({ url, options })

    if (url === '/admin/api/uploads') {
      return { files: [uploadedFile] }
    }

    return {
      items: [uploadedFile],
      pagination: {
        page: 1,
        pageSize: 50,
        total: 1,
        pageCount: 1
      }
    }
  }

  try {
    const picker = useAdminMarkdownMediaPicker({
      uploadSizeLimits,
      uploadMaxFileCount: computed(() => 3),
      uploadMaxTotalSize: computed(() => 1024 * 1024)
    })
    picker.openMediaPickerState('image')

    const uploadedFiles = await picker.uploadFilesIntoMediaPicker([
      new File(['image'], 'a.png', { type: 'image/png' })
    ])

    assert.deepEqual(uploadedFiles, [uploadedFile])
    assert.equal(picker.isUploading.value, false)
    assert.equal(picker.activeMediaPickerTab.value, 'library')
    assert.deepEqual(picker.selectedMediaUrls.value, ['/uploads/a.png'])
    assert.deepEqual(picker.mediaItems.value, [uploadedFile])
    assert.equal(calls[0].url, '/admin/api/uploads')
    assert.equal(calls[0].options.method, 'POST')
    assert.ok(calls[0].options.body instanceof FormData)
    assert.equal(calls[1].url, '/admin/api/media')
  } finally {
    globalThis.$fetch = originalFetch
  }
})

test('관리자 Markdown 미디어 선택 모달 업로드는 한도 초과 시 요청하지 않는다', async () => {
  const originalFetch = globalThis.$fetch
  let called = false
  globalThis.$fetch = async () => {
    called = true
    return { files: [] }
  }

  try {
    const picker = useAdminMarkdownMediaPicker({
      uploadSizeLimits,
      uploadMaxFileCount: computed(() => 1),
      uploadMaxTotalSize: computed(() => 1024 * 1024)
    })

    await assert.rejects(
      () => picker.uploadMediaFiles([
        new File(['a'], 'a.png', { type: 'image/png' }),
        new File(['b'], 'b.png', { type: 'image/png' })
      ]),
      /최대 1개/
    )
    assert.equal(called, false)
  } finally {
    globalThis.$fetch = originalFetch
  }
})