/**
 * @vitest-environment node
 */
import { beforeEach, describe, expect, it, vi } from 'vitest'
import type { SubBlockConfig } from '@/blocks/types'
import type { BlockState } from '@/stores/workflows/workflow/types'

// deploy.ts pulls in the trigger/block/provider registries at module load; none are exercised by
// buildProviderConfig (a pure function), so stub them to keep this unit test fast and isolated.
vi.mock('@/blocks', () => ({ getBlock: vi.fn() }))
vi.mock('@/triggers', () => ({ getTrigger: vi.fn(), isTriggerValid: vi.fn(() => true) }))
vi.mock('@/lib/webhooks/providers', () => ({ getProviderHandler: vi.fn() }))
vi.mock('@/lib/webhooks/provider-subscriptions', () => ({
  cleanupExternalWebhook: vi.fn(),
  createExternalWebhookSubscription: vi.fn(),
  hasWebhookConfigChanged: vi.fn(),
}))
vi.mock('@/lib/webhooks/utils.server', () => ({
  findConflictingWebhookPathOwner: vi.fn(),
}))
vi.mock('@/lib/webhooks/pending-verification', () => ({
  PendingWebhookVerificationTracker: vi.fn(),
}))

import { buildProviderConfig } from '@/lib/webhooks/deploy'

const trigger = (subBlocks: Partial<SubBlockConfig>[]): { subBlocks: SubBlockConfig[] } => ({
  subBlocks: subBlocks as SubBlockConfig[],
})

const driveTrigger = trigger([
  {
    id: 'triggerCredentials',
    mode: 'trigger',
    canonicalParamId: 'oauthCredential',
    serviceId: 'google-drive',
  },
  { id: 'folderId', mode: 'trigger', canonicalParamId: 'folderId', required: false },
  { id: 'manualFolderId', mode: 'trigger-advanced', canonicalParamId: 'folderId', required: false },
])

const tableTrigger = trigger([
  { id: 'tableSelector', mode: 'trigger', canonicalParamId: 'tableId', required: true },
  { id: 'manualTableId', mode: 'trigger-advanced', canonicalParamId: 'tableId', required: true },
])

function makeBlock(
  type: string,
  subBlockValues: Record<string, unknown>,
  canonicalModes?: Record<string, 'basic' | 'advanced'>
): BlockState {
  const subBlocks: Record<string, { value: unknown }> = {}
  for (const [key, value] of Object.entries(subBlockValues)) subBlocks[key] = { value }
  return {
    id: 'block-1',
    type,
    subBlocks,
    ...(canonicalModes ? { data: { canonicalModes } } : {}),
  } as unknown as BlockState
}

describe('buildProviderConfig canonical collapse', () => {
  beforeEach(() => vi.clearAllMocks())

  it('writes the basic value under the canonical key in basic mode', () => {
    const block = makeBlock('google_drive_poller', { folderId: 'BASIC' })
    const { providerConfig } = buildProviderConfig(block, 'google_drive_poller', driveTrigger)
    expect(providerConfig.folderId).toBe('BASIC')
  })

  it('returns the credential reference and canonical OAuth service for deploy validation', () => {
    const block = makeBlock('google_drive_poller', { triggerCredentials: 'credential-1' })
    const result = buildProviderConfig(block, 'google_drive_poller', driveTrigger)

    expect(result.credentialReference).toBe('credential-1')
    expect(result.credentialServiceId).toBe('google-drive')
    expect(result.providerConfig.credentialId).toBeUndefined()
  })

  it('writes the active (advanced) value under the canonical key when only advanced is set', () => {
    const block = makeBlock('google_drive_poller', { manualFolderId: 'ADVANCED' })
    const { providerConfig } = buildProviderConfig(block, 'google_drive_poller', driveTrigger)
    // Heuristic: empty basic + populated advanced => advanced is active.
    expect(providerConfig.folderId).toBe('ADVANCED')
    // Raw advanced key kept for transitional readers.
    expect(providerConfig.manualFolderId).toBe('ADVANCED')
  })

  it('collapses a drift block (stale basic + active advanced via override) to the active value', () => {
    const block = makeBlock(
      'google_drive_poller',
      { folderId: 'STALE', manualFolderId: 'ACTIVE' },
      { folderId: 'advanced' }
    )
    const { providerConfig } = buildProviderConfig(block, 'google_drive_poller', driveTrigger)
    // The canonical key collapses to the active (advanced) value, not the stale basic value.
    expect(providerConfig.folderId).toBe('ACTIVE')
    expect(providerConfig.manualFolderId).toBe('ACTIVE')
  })

  it('honors a basic-mode override even when advanced is populated', () => {
    const block = makeBlock(
      'google_drive_poller',
      { folderId: 'BASIC', manualFolderId: 'ADVANCED' },
      { folderId: 'basic' }
    )
    const { providerConfig } = buildProviderConfig(block, 'google_drive_poller', driveTrigger)
    expect(providerConfig.folderId).toBe('BASIC')
  })

  it('omits the canonical key when the active value is empty (optional field)', () => {
    const block = makeBlock('google_drive_poller', {})
    const { providerConfig } = buildProviderConfig(block, 'google_drive_poller', driveTrigger)
    expect(providerConfig.folderId).toBeUndefined()
  })

  it('writes a distinct canonical key (tableId) for the table trigger', () => {
    const block = makeBlock('table_new_row', { tableSelector: 'TBL' })
    const { providerConfig } = buildProviderConfig(block, 'table_new_row', tableTrigger)
    expect(providerConfig.tableId).toBe('TBL')
    // Raw basic key kept for transitional readers.
    expect(providerConfig.tableSelector).toBe('TBL')
  })

  it('collapses a drift table block to the active value under tableId', () => {
    const block = makeBlock(
      'table_new_row',
      { tableSelector: 'STALE', manualTableId: 'ACTIVE' },
      { tableId: 'advanced' }
    )
    const { providerConfig } = buildProviderConfig(block, 'table_new_row', tableTrigger)
    expect(providerConfig.tableId).toBe('ACTIVE')
  })
})