/*
 * Copyright 2019 New Vector Ltd
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package im.vector.app.core.linkify

/**
 * Better support for geo URi
 */
object VectorAutoLinkPatterns {

    // geo:
    private const val LAT_OR_LONG_OR_ALT_NUMBER = "-?\\d+(?:\\.\\d+)?"
    private const val COORDINATE_SYSTEM = ";crs=[\\w-]+"

    val GEO_URI: Regex = Regex("(?:geo:)?" +
            "(" + LAT_OR_LONG_OR_ALT_NUMBER + ")" +
            "," +
            "(" + LAT_OR_LONG_OR_ALT_NUMBER + ")" +
            "(?:" + "," + LAT_OR_LONG_OR_ALT_NUMBER + ")?" + // altitude
            "(?:" + COORDINATE_SYSTEM + ")?" +
            "(?:" + ";u=\\d+(?:\\.\\d+)?" + ")?" + // uncertainty in meters
            "(?:" +
            ";[\\w-]+=(?:[\\w-_.!~*'()]|%[\\da-f][\\da-f])+" + // dafuk
            ")*", RegexOption.IGNORE_CASE)
}
