import { getAuthContext } from "../../../../../utils/auth";
import { prisma } from "../../../../../utils/prisma";
import { buildTelegramStartUrl, issueLinkToken } from "../../../../../utils/telegramBusinessConnect";

export default defineEventHandler(async (event) => {
  const auth = await getAuthContext(event);
  const { token, payload } = issueLinkToken({ teamId: auth.teamId, userId: auth.userId });

  const pendingId = `pending:${payload.nonce}`;
  await prisma.telegramBusinessConnection.upsert({
    where: {
      teamId_businessConnectionId: {
        teamId: auth.teamId,
        businessConnectionId: pendingId,
      },
    },
    create: {
      teamId: auth.teamId,
      businessConnectionId: pendingId,
      rawJson: {
        state: "pending_link",
        link: {
          nonce: payload.nonce,
          exp: payload.exp,
          createdAt: new Date().toISOString(),
          createdByUserId: auth.userId,
        },
      },
    },
    update: {
      isEnabled: null,
      canReply: null,
      rawJson: {
        state: "pending_link",
        link: {
          nonce: payload.nonce,
          exp: payload.exp,
          createdAt: new Date().toISOString(),
          createdByUserId: auth.userId,
        },
      },
    },
  });

  return {
    ok: true,
    status: "pending_link",
    connectUrl: buildTelegramStartUrl(token),
    expiresAt: new Date(payload.exp * 1000).toISOString(),
  };
});