import { expect } from '@playwright/test'

import type { ComfyPage } from '../fixtures/ComfyPage'
import { comfyPageFixture as test } from '../fixtures/ComfyPage'
import { TestIds } from '../fixtures/selectors'

async function loadMissingMediaAndOpenErrorsTab(
  comfyPage: ComfyPage,
  workflow = 'missing/missing_media_single'
) {
  await comfyPage.workflow.loadWorkflow(workflow)

  const errorOverlay = comfyPage.page.getByTestId(TestIds.dialogs.errorOverlay)
  await expect(errorOverlay).toBeVisible()

  await errorOverlay.getByTestId(TestIds.dialogs.errorOverlaySeeErrors).click()
  await expect(errorOverlay).not.toBeVisible()
}

async function uploadFileViaDropzone(comfyPage: ComfyPage) {
  const dropzone = comfyPage.page.getByTestId(
    TestIds.dialogs.missingMediaUploadDropzone
  )
  const [fileChooser] = await Promise.all([
    comfyPage.page.waitForEvent('filechooser'),
    dropzone.click()
  ])
  await fileChooser.setFiles(comfyPage.assetPath('test_upload_image.png'))
}

async function confirmPendingSelection(comfyPage: ComfyPage) {
  const confirmButton = comfyPage.page.getByTestId(
    TestIds.dialogs.missingMediaConfirmButton
  )
  await expect(confirmButton).toBeEnabled()
  await confirmButton.click()
}

function getMediaRow(comfyPage: ComfyPage) {
  return comfyPage.page.getByTestId(TestIds.dialogs.missingMediaRow)
}

function getStatusCard(comfyPage: ComfyPage) {
  return comfyPage.page.getByTestId(TestIds.dialogs.missingMediaStatusCard)
}

function getDropzone(comfyPage: ComfyPage) {
  return comfyPage.page.getByTestId(TestIds.dialogs.missingMediaUploadDropzone)
}

test.describe('Missing media inputs in Error Tab', () => {
  test.beforeEach(async ({ comfyPage }) => {
    await comfyPage.settings.setSetting('Comfy.UseNewMenu', 'Top')
    await comfyPage.settings.setSetting(
      'Comfy.RightSidePanel.ShowErrorsTab',
      true
    )
  })

  test.describe('Detection', () => {
    test('Shows error overlay when workflow has missing media inputs', async ({
      comfyPage
    }) => {
      await comfyPage.workflow.loadWorkflow('missing/missing_media_single')

      const errorOverlay = comfyPage.page.getByTestId(
        TestIds.dialogs.errorOverlay
      )
      await expect(errorOverlay).toBeVisible()

      const messages = errorOverlay.getByTestId(
        TestIds.dialogs.errorOverlayMessages
      )
      await expect(messages).toBeVisible()
      await expect(messages).toHaveText(/missing required inputs/i)
    })

    test('Shows missing media group in errors tab after clicking See Errors', async ({
      comfyPage
    }) => {
      await loadMissingMediaAndOpenErrorsTab(comfyPage)

      await expect(
        comfyPage.page.getByTestId(TestIds.dialogs.missingMediaGroup)
      ).toBeVisible()
    })

    test('Shows correct number of missing media rows', async ({
      comfyPage
    }) => {
      await loadMissingMediaAndOpenErrorsTab(
        comfyPage,
        'missing/missing_media_multiple'
      )

      await expect(getMediaRow(comfyPage)).toHaveCount(2)
    })

    test('Shows upload dropzone and library select for each missing item', async ({
      comfyPage
    }) => {
      await loadMissingMediaAndOpenErrorsTab(comfyPage)

      await expect(getDropzone(comfyPage)).toBeVisible()
      await expect(
        comfyPage.page.getByTestId(TestIds.dialogs.missingMediaLibrarySelect)
      ).toBeVisible()
    })

    test('Does not show error overlay when all media inputs exist', async ({
      comfyPage
    }) => {
      await comfyPage.workflow.loadWorkflow('widgets/load_image_widget')

      await expect(
        comfyPage.page.getByTestId(TestIds.dialogs.errorOverlay)
      ).not.toBeVisible()
    })
  })

  test.describe('Upload flow (2-step confirm)', () => {
    test('Upload via file picker shows status card then allows confirm', async ({
      comfyPage
    }) => {
      await loadMissingMediaAndOpenErrorsTab(comfyPage)
      await uploadFileViaDropzone(comfyPage)

      await expect(getStatusCard(comfyPage)).toBeVisible()

      await confirmPendingSelection(comfyPage)
      await expect(getMediaRow(comfyPage)).toHaveCount(0)
    })
  })

  test.describe('Library select flow (2-step confirm)', () => {
    test('Selecting from library shows status card then allows confirm', async ({
      comfyPage
    }) => {
      await loadMissingMediaAndOpenErrorsTab(comfyPage)

      const librarySelect = comfyPage.page.getByTestId(
        TestIds.dialogs.missingMediaLibrarySelect
      )
      await librarySelect.getByRole('combobox').click()

      const optionCount = await comfyPage.page.getByRole('option').count()
      if (optionCount === 0) {
        test.skip()
        return
      }

      await comfyPage.page.getByRole('option').first().click()

      await expect(getStatusCard(comfyPage)).toBeVisible()

      await confirmPendingSelection(comfyPage)
      await expect(getMediaRow(comfyPage)).toHaveCount(0)
    })
  })

  test.describe('Cancel selection', () => {
    test('Cancelling pending selection returns to upload/library UI', async ({
      comfyPage
    }) => {
      await loadMissingMediaAndOpenErrorsTab(comfyPage)
      await uploadFileViaDropzone(comfyPage)

      await expect(getStatusCard(comfyPage)).toBeVisible()
      await expect(getDropzone(comfyPage)).not.toBeVisible()

      await comfyPage.page
        .getByTestId(TestIds.dialogs.missingMediaCancelButton)
        .click()

      await expect(getStatusCard(comfyPage)).not.toBeVisible()
      await expect(getDropzone(comfyPage)).toBeVisible()
    })
  })

  test.describe('All resolved', () => {
    test('Missing Inputs group disappears when all items are resolved', async ({
      comfyPage
    }) => {
      await loadMissingMediaAndOpenErrorsTab(comfyPage)
      await uploadFileViaDropzone(comfyPage)
      await confirmPendingSelection(comfyPage)

      await expect(
        comfyPage.page.getByTestId(TestIds.dialogs.missingMediaGroup)
      ).not.toBeVisible()
    })
  })

  test.describe('Locate node', () => {
    test('Locate button navigates canvas to the missing media node', async ({
      comfyPage
    }) => {
      await loadMissingMediaAndOpenErrorsTab(comfyPage)

      const offsetBefore = await comfyPage.page.evaluate(() => {
        const canvas = window['app']?.canvas
        return canvas?.ds?.offset
          ? [canvas.ds.offset[0], canvas.ds.offset[1]]
          : null
      })

      const locateButton = comfyPage.page.getByTestId(
        TestIds.dialogs.missingMediaLocateButton
      )
      await expect(locateButton).toBeVisible()
      await locateButton.click()

      await expect
        .poll(async () => {
          return await comfyPage.page.evaluate(() => {
            const canvas = window['app']?.canvas
            return canvas?.ds?.offset
              ? [canvas.ds.offset[0], canvas.ds.offset[1]]
              : null
          })
        })
        .not.toEqual(offsetBefore)
    })
  })
})