import { createLogger } from '@sim/logger'
import { type NextRequest, NextResponse } from 'next/server'
import { confluencePagesSelectorContract } from '@/lib/api/contracts/selectors/confluence'
import { parseRequest } from '@/lib/api/server'
import { checkSessionOrInternalAuth } from '@/lib/auth/hybrid'
import { validateJiraCloudId } from '@/lib/core/security/input-validation'
import { withRouteHandler } from '@/lib/core/utils/with-route-handler'
import { getConfluenceCloudId } from '@/tools/confluence/utils'
import { parseAtlassianErrorMessage } from '@/tools/jira/utils'

const logger = createLogger('ConfluencePagesAPI')

export const dynamic = 'force-dynamic'

// List pages or search pages
export const POST = withRouteHandler(async (request: NextRequest) => {
  try {
    const auth = await checkSessionOrInternalAuth(request)
    if (!auth.success || !auth.userId) {
      return NextResponse.json({ error: auth.error || 'Unauthorized' }, { status: 401 })
    }

    const parsed = await parseRequest(confluencePagesSelectorContract, request, {})
    if (!parsed.success) return parsed.response

    const { domain, accessToken, title, cloudId: providedCloudId, limit } = parsed.data.body

    const cloudId = providedCloudId || (await getConfluenceCloudId(domain, accessToken))

    const cloudIdValidation = validateJiraCloudId(cloudId, 'cloudId')
    if (!cloudIdValidation.isValid) {
      return NextResponse.json({ error: cloudIdValidation.error }, { status: 400 })
    }

    const baseUrl = `https://api.atlassian.com/ex/confluence/${cloudId}/wiki/api/v2/pages`
    const queryParams = new URLSearchParams()

    if (limit) {
      queryParams.append('limit', limit.toString())
    }

    if (title) {
      queryParams.append('title', title)
    }

    const queryString = queryParams.toString()
    const url = queryString ? `${baseUrl}?${queryString}` : baseUrl

    logger.info(`Fetching Confluence pages from: ${url}`)

    const response = await fetch(url, {
      method: 'GET',
      headers: {
        'Content-Type': 'application/json',
        Authorization: `Bearer ${accessToken}`,
      },
    })

    logger.info('Response status:', response.status, response.statusText)

    if (!response.ok) {
      const errorText = await response.text()
      logger.error('Confluence API error response:', {
        status: response.status,
        statusText: response.statusText,
        error: errorText,
      })
      return NextResponse.json(
        { error: parseAtlassianErrorMessage(response.status, response.statusText, errorText) },
        { status: response.status }
      )
    }

    const data = await response.json()
    logger.info('Confluence API response:', `${JSON.stringify(data, null, 2).substring(0, 300)}...`)
    logger.info(`Found ${data.results?.length || 0} pages`)

    if (data.results && data.results.length > 0) {
      logger.info('First few pages:')
      for (const page of data.results.slice(0, 3)) {
        logger.info(`- ${page.id}: ${page.title}`)
      }
    }

    return NextResponse.json({
      files: data.results.map((page: any) => ({
        id: page.id,
        name: page.title,
        mimeType: 'confluence/page',
        url: page._links?.webui || '',
        modifiedTime: page.version?.createdAt || '',
        spaceId: page.spaceId,
        webViewLink: page._links?.webui || '',
      })),
    })
  } catch (error) {
    logger.error('Error fetching Confluence pages:', error)
    return NextResponse.json(
      { error: (error as Error).message || 'Internal server error' },
      { status: 500 }
    )
  }
})