import { render } from '@testing-library/react'
import type { ReactElement } from 'react'
import { describe, expect, it } from 'vitest'

import { getTableAdmonitionMessage, getTableDataApiStatus } from './PolicyTableRow.utils'
import type { TableDataApiStatus } from './PolicyTableRow.utils'
import type { TableApiAccessData } from '@/data/privileges/table-api-access-query'
import type { ApiPrivilegesByRole } from '@/lib/data-api-types'

const FULL_PRIVILEGES: ApiPrivilegesByRole = {
  anon: ['SELECT', 'INSERT', 'UPDATE', 'DELETE'],
  authenticated: ['SELECT', 'INSERT', 'UPDATE', 'DELETE'],
  service_role: ['SELECT', 'INSERT', 'UPDATE', 'DELETE'],
}

const PARTIAL_PRIVILEGES: ApiPrivilegesByRole = {
  anon: ['SELECT'],
  authenticated: [],
  service_role: ['SELECT', 'INSERT', 'UPDATE', 'DELETE'],
}

const grantedAccess: TableApiAccessData = {
  apiAccessType: 'access',
  grantStatus: 'granted',
  privileges: FULL_PRIVILEGES,
}

const customAccess: TableApiAccessData = {
  apiAccessType: 'access',
  grantStatus: 'custom',
  privileges: PARTIAL_PRIVILEGES,
}

const noGrants: TableApiAccessData = { apiAccessType: 'exposed-schema-no-grants' }
const schemaNotExposedData: TableApiAccessData = { apiAccessType: 'none' }

describe('getTableDataApiStatus', () => {
  it('returns no-grants when schema is exposed but no API roles have privileges', () => {
    const status = getTableDataApiStatus({
      apiAccessData: noGrants,
      isRLSEnabled: true,
      policiesCount: 0,
    })
    expect(status).toBe('no-grants')
  })

  it('returns custom-grants for partial/non-standard grants — even if RLS is off', () => {
    const status = getTableDataApiStatus({
      apiAccessData: customAccess,
      isRLSEnabled: false,
      policiesCount: 0,
    })
    expect(status).toBe('custom-grants')
  })

  it('returns publicly-readable when fully granted and RLS is off', () => {
    const status = getTableDataApiStatus({
      apiAccessData: grantedAccess,
      isRLSEnabled: false,
      policiesCount: 3,
    })
    expect(status).toBe('publicly-readable')
  })

  it('returns locked-by-rls when fully granted + RLS on + no policies', () => {
    const status = getTableDataApiStatus({
      apiAccessData: grantedAccess,
      isRLSEnabled: true,
      policiesCount: 0,
    })
    expect(status).toBe('locked-by-rls')
  })

  it('returns secured when fully granted + RLS on + policies exist', () => {
    const status = getTableDataApiStatus({
      apiAccessData: grantedAccess,
      isRLSEnabled: true,
      policiesCount: 2,
    })
    expect(status).toBe('secured')
  })

  it('returns unknown when apiAccessData is still loading or errored', () => {
    // apiAccessData is undefined during loading AND on query error (isPending flips false
    // but data stays undefined). We must not fall through to 'schema-not-exposed' — that
    // would tell the user to reconfigure API settings for a schema that is in fact exposed.
    const status = getTableDataApiStatus({
      apiAccessData: undefined,
      isRLSEnabled: true,
      policiesCount: 0,
    })
    expect(status).toBe('unknown')
  })

  it('returns unknown when apiAccessData reports apiAccessType=none on an exposed schema', () => {
    // Defensive: the query shouldn't emit apiAccessType=none when schema is exposed,
    // but if it does we still don't want the false "schema not exposed" admonition.
    const status = getTableDataApiStatus({
      apiAccessData: schemaNotExposedData,
      isRLSEnabled: true,
      policiesCount: 0,
    })
    expect(status).toBe('unknown')
  })

  it('custom-grants wins over RLS state — we never claim public-readable for partial grants', () => {
    const rlsOff = getTableDataApiStatus({
      apiAccessData: customAccess,
      isRLSEnabled: false,
      policiesCount: 0,
    })
    const rlsOnNoPolicies = getTableDataApiStatus({
      apiAccessData: customAccess,
      isRLSEnabled: true,
      policiesCount: 0,
    })
    expect(rlsOff).toBe('custom-grants')
    expect(rlsOnNoPolicies).toBe('custom-grants')
  })
})

const renderAdmonitionText = (status: TableDataApiStatus) => {
  const message = getTableAdmonitionMessage({ status })
  return render(message as ReactElement).container.textContent
}

describe('getTableAdmonitionMessage', () => {
  it('returns the custom-grants copy', () => {
    expect(renderAdmonitionText('custom-grants')).toBe(
      'This table has custom Data API permissions — access may be restricted for some roles or operations.'
    )
  })

  it('returns the no-grants copy, linking to the Data API settings for the given project ref', () => {
    const message = getTableAdmonitionMessage({ status: 'no-grants', ref: 'my-project' })
    const { container, getByRole } = render(message as ReactElement)

    expect(container.textContent).toBe(
      'This table cannot be accessed via the Data API. Enable access in your project’s Data API settings.'
    )
    expect(getByRole('link', { name: 'Data API settings' })).toHaveAttribute(
      'href',
      '/project/my-project/integrations/data_api/settings'
    )
  })

  it('returns the publicly-readable copy', () => {
    expect(renderAdmonitionText('publicly-readable')).toBe(
      'This table can be accessed by anyone via the Data API as RLS is disabled.'
    )
  })

  it('returns the locked-by-rls copy', () => {
    expect(renderAdmonitionText('locked-by-rls')).toBe(
      'No data will be returned via the Data API as no RLS policies exist on this table.'
    )
  })

  it('returns null for secured — no admonition needed', () => {
    expect(getTableAdmonitionMessage({ status: 'secured' })).toBeNull()
  })

  it('returns null for unknown — caller should stay silent during loading/errored state', () => {
    expect(getTableAdmonitionMessage({ status: 'unknown' })).toBeNull()
  })
})