import { auth } from '@clerk/nextjs/server'
import { NextResponse } from 'next/server'
import { getDatabase } from '@/lib/database'
import { ensureUserSynced } from '@/lib/sync-user'

export async function POST(req: Request) {
    try {
        const { userId } = await auth()
        if (!userId) return new NextResponse('Unauthorized', { status: 401 })

        const db = await getDatabase()

        // Ensure user exists in DB (sync from Clerk if needed)
        await ensureUserSynced(userId, db)

        let client = await db.getClientByUserId(userId)

        if (!client) {
            // Auto-create client profile if it doesn't exist
            console.log('Client profile not found, creating new one for user:', userId)
            client = await db.createClient({
                userId,
                membershipType: 'basic',
                membershipStatus: 'active',
                joinDate: new Date()
            })
        }

        // Check if already checked in
        const activeCheckIn = await db.getActiveCheckIn(client.id)
        if (activeCheckIn) {
            return new NextResponse('Already checked in', { status: 400 })
        }

        const body = await req.json()
        const { type = 'gym', notes } = body

        const attendance = await db.checkIn(client.id, type, notes)
        return NextResponse.json(attendance)
    } catch (error) {
        console.error('Check-in error:', error)
        return new NextResponse('Internal Server Error', { status: 500 })
    }
}