import { and, eq } from "drizzle-orm";
import { getDb } from "@/db";
import { commissionMessages, commissionReactions } from "@/db/schema";
import { notifyCommission } from "@/lib/commission/server";
import { authorizeTicket } from "@/lib/commission/tickets";
import { errorResponse, HttpError, readJson, requireSameOrigin } from "@/lib/security/http";
import { limitRequest } from "@/lib/security/rate-limit";
import * as z from "zod";

const inputSchema = z.object({ messageId: z.uuid(), emoji: z.enum(["👍", "❤️", "😂", "😮", "😢", "🎉"]) });

export async function POST(request: Request, context: RouteContext<"/api/commission/tickets/[id]/reactions">) {
  try {
    requireSameOrigin(request);
    const { id } = await context.params;
    const { ticket, user } = await authorizeTicket(id);
    if (ticket.status !== "open") throw new HttpError(409, "ticket-closed");
    await limitRequest("commission-reaction", user.id, 60);
    const parsed = inputSchema.safeParse(await readJson(request));
    if (!parsed.success) throw new HttpError(400, "invalid-reaction");
    const [message] = await getDb().select({ id: commissionMessages.id }).from(commissionMessages)
      .where(and(eq(commissionMessages.id, parsed.data.messageId), eq(commissionMessages.ticketId, id))).limit(1);
    if (!message) throw new HttpError(404, "message-not-found");
    const where = and(eq(commissionReactions.messageId, message.id),
      eq(commissionReactions.userId, user.id), eq(commissionReactions.emoji, parsed.data.emoji));
    const [existing] = await getDb().select().from(commissionReactions).where(where).limit(1);
    if (existing) await getDb().delete(commissionReactions).where(where);
    else await getDb().insert(commissionReactions).values({
      messageId: message.id, userId: user.id, emoji: parsed.data.emoji,
    }).onConflictDoNothing();
    await notifyCommission(id, ticket.userId);
    return Response.json({ active: !existing });
  } catch (cause) { return errorResponse(cause); }
}