/*
 * This file is part of LanternServer, licensed under the MIT License (MIT).
 *
 * Copyright (c) LanternPowered <https://www.lanternpowered.org>
 * Copyright (c) SpongePowered <https://www.spongepowered.org>
 * Copyright (c) contributors
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the Software), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED AS IS, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */
package org.lanternpowered.server.command;

import static org.lanternpowered.server.text.translation.TranslationHelper.t;

import org.lanternpowered.server.config.user.ban.BanConfig;
import org.spongepowered.api.Sponge;
import org.spongepowered.api.command.CommandException;
import org.spongepowered.api.command.CommandResult;
import org.spongepowered.api.command.args.GenericArguments;
import org.spongepowered.api.command.spec.CommandSpec;
import org.spongepowered.api.event.cause.Cause;
import org.spongepowered.api.plugin.PluginContainer;
import org.spongepowered.api.service.ban.BanService;
import org.spongepowered.api.text.Text;

import java.net.InetAddress;
import java.net.UnknownHostException;

public final class CommandPardonIp extends CommandProvider {

    public CommandPardonIp() {
        super(3, "pardon-ip");
    }

    @Override
    public void completeSpec(PluginContainer pluginContainer, CommandSpec.Builder specBuilder) {
        specBuilder
                .arguments(
                        GenericArguments.string(Text.of("address"))
                )
                .executor((src, args) -> {
                    final String target = args.<String>getOne("address").get();
                    InetAddress address;
                    if (CommandBanIp.IP_PATTERN.matcher(target).matches()) {
                        try {
                            address = InetAddress.getByName(target);
                        } catch (UnknownHostException e) {
                            throw new IllegalStateException("Unable to parse a valid InetAddress: " + target, e);
                        }
                    } else {
                        throw new CommandException(t("commands.unbanip.invalid"));
                    }
                    final BanService banService = Sponge.getServiceManager().provideUnchecked(BanService.class);
                    // Try to pardon the player with a custom cause builder
                    // to append the command source, only possible for our BanService
                    if (banService instanceof BanConfig) {
                        banService.getBanFor(address).ifPresent(ban -> ((BanConfig) banService).removeBan(ban,
                                () -> Cause.source(src).build()));
                    } else {
                        banService.pardon(address);
                    }
                    src.sendMessage(t("commands.banip.success", address.toString()));
                    return CommandResult.success();
                });
    }
}