/*
 * This file is part of LuckPerms, licensed under the MIT License.
 *
 *  Copyright (c) lucko (Luck) <luck@lucko.me>
 *  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 me.lucko.luckperms.common.commands.generic.permission;

import me.lucko.luckperms.api.context.MutableContextSet;
import me.lucko.luckperms.common.actionlog.ExtendedLogEntry;
import me.lucko.luckperms.common.command.CommandResult;
import me.lucko.luckperms.common.command.abstraction.CommandException;
import me.lucko.luckperms.common.command.abstraction.SharedSubCommand;
import me.lucko.luckperms.common.command.access.ArgumentPermissions;
import me.lucko.luckperms.common.command.access.CommandPermission;
import me.lucko.luckperms.common.command.utils.ArgumentParser;
import me.lucko.luckperms.common.command.utils.MessageUtils;
import me.lucko.luckperms.common.command.utils.StorageAssistant;
import me.lucko.luckperms.common.locale.LocaleManager;
import me.lucko.luckperms.common.locale.command.CommandSpec;
import me.lucko.luckperms.common.locale.message.Message;
import me.lucko.luckperms.common.model.PermissionHolder;
import me.lucko.luckperms.common.plugin.LuckPermsPlugin;
import me.lucko.luckperms.common.sender.Sender;
import me.lucko.luckperms.common.utils.Predicates;

import java.util.List;

public class PermissionClear extends SharedSubCommand {
    public PermissionClear(LocaleManager locale) {
        super(CommandSpec.PERMISSION_CLEAR.localize(locale), "clear", CommandPermission.USER_PERM_CLEAR, CommandPermission.GROUP_PERM_CLEAR, Predicates.alwaysFalse());
    }

    @Override
    public CommandResult execute(LuckPermsPlugin plugin, Sender sender, PermissionHolder holder, List<String> args, String label, CommandPermission permission) throws CommandException {
        if (ArgumentPermissions.checkModifyPerms(plugin, sender, permission, holder)) {
            Message.COMMAND_NO_PERMISSION.send(sender);
            return CommandResult.NO_PERMISSION;
        }

        int before = holder.enduringData().immutable().size();

        MutableContextSet context = ArgumentParser.parseContext(0, args, plugin);

        if (ArgumentPermissions.checkContext(plugin, sender, permission, context)) {
            Message.COMMAND_NO_PERMISSION.send(sender);
            return CommandResult.NO_PERMISSION;
        }

        if (context.isEmpty()) {
            holder.clearPermissions();
        } else {
            holder.clearPermissions(context);
        }

        int changed = before - holder.enduringData().immutable().size();
        if (changed == 1) {
            Message.PERMISSION_CLEAR_SUCCESS_SINGULAR.send(sender, holder.getFriendlyName(), MessageUtils.contextSetToString(context), changed);
        } else {
            Message.PERMISSION_CLEAR_SUCCESS.send(sender, holder.getFriendlyName(), MessageUtils.contextSetToString(context), changed);
        }

        ExtendedLogEntry.build().actor(sender).acted(holder)
                .action("permission", "clear", context)
                .build().submit(plugin, sender);

        StorageAssistant.save(holder, sender, plugin);
        return CommandResult.SUCCESS;
    }
}
