import { NextRequest, NextResponse } from 'next/server';
import { prisma } from '@/lib/db';
import { nanoid } from 'nanoid';
import bcrypt from 'bcryptjs';

export async function POST(request: NextRequest) {
    try {
        const body = await request.json();
        const { title, description, startDate, endDate, adminPassword } = body;

        // Validation
        if (!title || !startDate || !endDate || !adminPassword) {
            return NextResponse.json(
                { error: 'Missing required fields: title, startDate, endDate, adminPassword' },
                { status: 400 }
            );
        }

        const start = new Date(startDate);
        const end = new Date(endDate);

        if (start > end) {
            return NextResponse.json(
                { error: 'Start date must be before or equal to end date' },
                { status: 400 }
            );
        }

        // Generate unique share code
        const shareCode = nanoid(8);

        // Hash admin password
        const adminPasswordHash = await bcrypt.hash(adminPassword, 12);

        // Create event
        const event = await prisma.event.create({
            data: {
                title,
                description: description || null,
                startDate: start,
                endDate: end,
                shareCode,
                adminPasswordHash,
            },
        });

        const appUrl = process.env.NEXT_PUBLIC_APP_URL || 'http://localhost:3000';

        return NextResponse.json({
            id: event.id,
            shareCode: event.shareCode,
            shareUrl: `${appUrl}/event/${event.shareCode}`,
            analyticsUrl: `${appUrl}/event/${event.shareCode}/analytics`,
        }, { status: 201 });

    } catch (error) {
        console.error('Error creating event:', error);
        return NextResponse.json(
            { error: 'Failed to create event' },
            { status: 500 }
        );
    }
}