import { eq } from "drizzle-orm";
import { messages, topics } from "~~/db/schema";

export default defineEventHandler(async (event) => {
    await protectRoute(event);

    const db = useDrizzle();

    const { id } = event.context.params!;

    const [topic] = await db.select().from(topics).where(eq(topics.id, id));
    if (topic === undefined || topic.userId !== event.context.user.id) {
        throw createError({ statusCode: 404, statusMessage: 'Topic not found' });
    }

    const { content } = await readBody(event);
    if (!content) {
        throw createError({ statusCode: 400, statusMessage: 'No content provided' });
    }

    const [message] = await db.insert(messages).values({
        topicId: topic.id,
        userId: event.context.user.id,
        content,
        isUser: true,
    }).returning();

    return message;
});