/**
 * TrackerMap
 * Copyright (C) 2021-2022  Iván Ávalos <avalos@disroot.org>, Henoch Ojeda <imhenoch@protonmail.com>
 *
 * 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/>.
 */
import Foundation
import CryptoKit
import WhirlyGlobe
import shared

class Utils {
    static func MD5(string: String) -> String {
        let digest = Insecure.MD5.hash(data: string.data(using: .utf8) ?? Data())
        return digest.map {
            String(format: "%02hhx", $0)
        }.joined()
    }
    
    static func tileInfoFrom(layer: MapLayer) -> MaplyRemoteTileInfoNew {
        let cacheDir = NSSearchPathForDirectoriesInDomains(.cachesDirectory, .userDomainMask, true)[0]
        let thisCacheDir = "\(cacheDir)/\(Utils.MD5(string: layer.url))"
        
        let tileInfo = MaplyRemoteTileInfoNew(baseURL: layer.url,
                                              minZoom: layer.minZoom,
                                              maxZoom: layer.maxZoom)
        tileInfo.cacheDir = thisCacheDir
        return tileInfo
    }
}