import { NextRequest, NextResponse } from 'next/server';
import { db } from '@/lib/db';
import { announcements } from '@/lib/db/schema';
import { eq, desc } from 'drizzle-orm';
import { getSession } from '@/lib/session';

export async function GET(request: NextRequest) {
	try {
		const session = await getSession();
		if (!session) {
			return NextResponse.json({ error: 'Unauthorized' }, { status: 401 });
		}

		// Regular users see only active announcements, admins see all
		const allAnnouncements = await db
			.select()
			.from(announcements)
			.where(session.role === 'admin' ? undefined : eq(announcements.isActive, true))
			.orderBy(desc(announcements.createdAt));

		return NextResponse.json({ announcements: allAnnouncements });
	} catch (error) {
		console.error('Error fetching announcements:', error);
		return NextResponse.json({ error: 'Internal server error' }, { status: 500 });
	}
}

export async function POST(request: NextRequest) {
	try {
		const session = await getSession();
		if (!session || session.role !== 'admin') {
			return NextResponse.json({ error: 'Unauthorized' }, { status: 401 });
		}

		const { title, content, priority, expiresAt } = await request.json();

		if (!title || !content) {
			return NextResponse.json({ error: 'Title and content are required' }, { status: 400 });
		}

		const [newAnnouncement] = await db
			.insert(announcements)
			.values({
				id: crypto.randomUUID(),
				title,
				content,
				priority: priority || 'medium',
				expiresAt: expiresAt ? new Date(expiresAt) : null,
				isActive: true,
				createdAt: new Date(),
				updatedAt: new Date(),
			})
			.returning();

		return NextResponse.json({
			announcement: newAnnouncement,
			message: 'Announcement created successfully',
		});
	} catch (error) {
		console.error('Error creating announcement:', error);
		return NextResponse.json({ error: 'Internal server error' }, { status: 500 });
	}
}