import { type NextRequest, NextResponse } from 'next/server'
import { z } from 'zod'
import { checkInternalAuth } from '@/lib/auth/hybrid'

export const dynamic = 'force-dynamic'

const SlackAddReactionSchema = z.object({
  accessToken: z.string().min(1, 'Access token is required'),
  channel: z.string().min(1, 'Channel is required'),
  timestamp: z.string().min(1, 'Message timestamp is required'),
  name: z.string().min(1, 'Emoji name is required'),
})

export async function POST(request: NextRequest) {
  try {
    const authResult = await checkInternalAuth(request, { requireWorkflowId: false })

    if (!authResult.success) {
      return NextResponse.json(
        {
          success: false,
          error: authResult.error || 'Authentication required',
        },
        { status: 401 }
      )
    }

    const body = await request.json()
    const validatedData = SlackAddReactionSchema.parse(body)

    const slackResponse = await fetch('https://slack.com/api/reactions.add', {
      method: 'POST',
      headers: {
        'Content-Type': 'application/json',
        Authorization: `Bearer ${validatedData.accessToken}`,
      },
      body: JSON.stringify({
        channel: validatedData.channel,
        timestamp: validatedData.timestamp,
        name: validatedData.name,
      }),
    })

    const data = await slackResponse.json()

    if (!data.ok) {
      return NextResponse.json(
        {
          success: false,
          error: data.error || 'Failed to add reaction',
        },
        { status: slackResponse.status }
      )
    }

    return NextResponse.json({
      success: true,
      output: {
        content: `Successfully added :${validatedData.name}: reaction`,
        metadata: {
          channel: validatedData.channel,
          timestamp: validatedData.timestamp,
          reaction: validatedData.name,
        },
      },
    })
  } catch (error) {
    if (error instanceof z.ZodError) {
      return NextResponse.json(
        {
          success: false,
          error: 'Invalid request data',
          details: error.errors,
        },
        { status: 400 }
      )
    }

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