/**
 * Billing summary endpoint.
 *
 * GET /_emdash/api/billing — cost-plus balance, spend breakdown, daily trend,
 * the credit price book/markup this instance runs under, and where a top-up is
 * sent (the hosting parent's checkout). Admin-only: it exposes money.
 */

import type { APIRoute } from "astro";

import { requirePerm } from "#api/authorize.js";
import { apiError, handleError, unwrapResult } from "#api/error.js";
import { handleBillingSummary } from "#api/handlers/billing.js";

export const prerender = false;

export const GET: APIRoute = async ({ locals }) => {
	const { emdash, user } = locals;

	const denied = requirePerm(user, "settings:manage");
	if (denied) return denied;

	if (!emdash?.db) {
		return apiError("NOT_CONFIGURED", "EmDash is not initialized", 500);
	}

	try {
		return unwrapResult(await handleBillingSummary(emdash.db));
	} catch (error) {
		return handleError(error, "Failed to load billing", "BILLING_ERROR");
	}
};