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// SPDX-License-Identifier: AGPL-3.0-only
// Copyright 2026 Shota FUJI
//
// This program is free software: you can redistribute it and/or modify it under the terms
// of the GNU Affero General Public License as published by the Free Software Foundation,
// either version 3 of the License, or (at your option) any later version.
//
// This program is distributed in the hope that it will be useful, but WITHOUT ANY
// WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
// PARTICULAR PURPOSE.  See the GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License along
// with this program.  If not, see <http://www.gnu.org/licenses/>.

var NO_REWRITE_PATTERN = /.+\..+$/;

function handler(event) {
	var request = event.request;
	var uri = request.uri;

	var segments = uri.split("/");
	var lastSegment = segments[segments.length - 1];
	if (!lastSegment || NO_REWRITE_PATTERN.test(lastSegment)) {
		return request;
	}

	request.uri = "/index.html";
	return request;
}