import { createLogger } from '@sim/logger'
import { NextResponse } from 'next/server'
import {
  validateAlphanumericId,
  validateJiraCloudId,
  validateJiraIssueKey,
} from '@/lib/core/security/input-validation'
import { getJiraCloudId, getJsmApiBaseUrl, getJsmHeaders } from '@/tools/jsm/utils'

export const dynamic = 'force-dynamic'

const logger = createLogger('JsmRequestAPI')

export async function POST(request: Request) {
  try {
    const body = await request.json()
    const {
      domain,
      accessToken,
      cloudId: cloudIdParam,
      issueIdOrKey,
      serviceDeskId,
      requestTypeId,
      summary,
      description,
      raiseOnBehalfOf,
      requestFieldValues,
    } = body

    if (!domain) {
      logger.error('Missing domain in request')
      return NextResponse.json({ error: 'Domain is required' }, { status: 400 })
    }

    if (!accessToken) {
      logger.error('Missing access token in request')
      return NextResponse.json({ error: 'Access token is required' }, { status: 400 })
    }

    const cloudId = cloudIdParam || (await getJiraCloudId(domain, accessToken))

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

    const baseUrl = getJsmApiBaseUrl(cloudId)

    const isCreateOperation = serviceDeskId && requestTypeId && summary

    if (isCreateOperation) {
      const serviceDeskIdValidation = validateAlphanumericId(serviceDeskId, 'serviceDeskId')
      if (!serviceDeskIdValidation.isValid) {
        return NextResponse.json({ error: serviceDeskIdValidation.error }, { status: 400 })
      }

      const requestTypeIdValidation = validateAlphanumericId(requestTypeId, 'requestTypeId')
      if (!requestTypeIdValidation.isValid) {
        return NextResponse.json({ error: requestTypeIdValidation.error }, { status: 400 })
      }
      const url = `${baseUrl}/request`

      logger.info('Creating request at:', url)

      const requestBody: Record<string, unknown> = {
        serviceDeskId,
        requestTypeId,
        requestFieldValues: requestFieldValues || {
          summary,
          ...(description && { description }),
        },
      }

      if (raiseOnBehalfOf) {
        requestBody.raiseOnBehalfOf = raiseOnBehalfOf
      }

      const response = await fetch(url, {
        method: 'POST',
        headers: getJsmHeaders(accessToken),
        body: JSON.stringify(requestBody),
      })

      if (!response.ok) {
        const errorText = await response.text()
        logger.error('JSM API error:', {
          status: response.status,
          statusText: response.statusText,
          error: errorText,
        })

        return NextResponse.json(
          { error: `JSM API error: ${response.status} ${response.statusText}`, details: errorText },
          { status: response.status }
        )
      }

      const data = await response.json()

      return NextResponse.json({
        success: true,
        output: {
          ts: new Date().toISOString(),
          issueId: data.issueId,
          issueKey: data.issueKey,
          requestTypeId: data.requestTypeId,
          serviceDeskId: data.serviceDeskId,
          success: true,
          url: `https://${domain}/browse/${data.issueKey}`,
        },
      })
    }
    if (!issueIdOrKey) {
      logger.error('Missing issueIdOrKey in request')
      return NextResponse.json({ error: 'Issue ID or key is required' }, { status: 400 })
    }

    const issueIdOrKeyValidation = validateJiraIssueKey(issueIdOrKey, 'issueIdOrKey')
    if (!issueIdOrKeyValidation.isValid) {
      return NextResponse.json({ error: issueIdOrKeyValidation.error }, { status: 400 })
    }

    const url = `${baseUrl}/request/${issueIdOrKey}`

    logger.info('Fetching request from:', url)

    const response = await fetch(url, {
      method: 'GET',
      headers: getJsmHeaders(accessToken),
    })

    if (!response.ok) {
      const errorText = await response.text()
      logger.error('JSM API error:', {
        status: response.status,
        statusText: response.statusText,
        error: errorText,
      })

      return NextResponse.json(
        { error: `JSM API error: ${response.status} ${response.statusText}`, details: errorText },
        { status: response.status }
      )
    }

    const data = await response.json()

    return NextResponse.json({
      success: true,
      output: {
        ts: new Date().toISOString(),
        request: data,
      },
    })
  } catch (error) {
    logger.error('Error with request operation:', {
      error: error instanceof Error ? error.message : String(error),
      stack: error instanceof Error ? error.stack : undefined,
    })

    return NextResponse.json(
      {
        error: error instanceof Error ? error.message : 'Internal server error',
        success: false,
      },
      { status: 500 }
    )
  }
}
