/**
 * 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/>.
 */
package mx.trackermap.TrackerMap.client.infrastructure

typealias MultiValueMap = Map<String, List<String>>

fun collectionDelimiter(collectionFormat: String) = when (collectionFormat) {
    "csv" -> ","
    "tsv" -> "\t"
    "pipes" -> "|"
    "ssv" -> " "
    else -> ""
}

val defaultMultiValueConverter: (item: Any?) -> String = { item -> "$item" }

fun <T : Any?> toMultiValue(items: List<T>, collectionFormat: String, map: (item: Any?) -> String = defaultMultiValueConverter): List<String> {
    return when (collectionFormat) {
        "multi" -> items.map(map)
        else -> listOf(items.map(map).joinToString(separator = collectionDelimiter(collectionFormat)))
    }
}