works.chatterbox.hooks.ircchannels.channels.modes.Mode.java Source code

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Here is the source code for works.chatterbox.hooks.ircchannels.channels.modes.Mode.java

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/*
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 */
package works.chatterbox.hooks.ircchannels.channels.modes;

import com.google.common.base.Preconditions;
import org.jetbrains.annotations.NotNull;
import works.chatterbox.hooks.ircchannels.api.IRCChannelsAPI;

import java.util.Arrays;
import java.util.List;
import java.util.stream.Collectors;

public interface Mode<T> {

    static Mode fromString(@NotNull final String string) {
        Preconditions.checkNotNull(string);
        Preconditions.checkArgument(string.length() > 0, "Zero-length (or smaller) string given");
        final char modeChar = string.charAt(0);
        final Mode mode = IRCChannelsAPI.getInstance().getModesAPI().getModes().getMode(modeChar);
        Preconditions.checkState(mode != null, "No mode for " + modeChar);
        if (mode.getArgumentLength() > 0) {
            Preconditions.checkState(string.length() > 2, "No arguments for mode requiring arguments");
            final String[] args = string.substring(2).split(" ");
            Preconditions.checkState(args.length == mode.getArgumentLength(),
                    "Invalid number of arguments. Expected " + mode.getArgumentLength() + ", received "
                            + args.length);
            final List<String> arguments = Arrays.stream(args).collect(Collectors.toList());
            //noinspection unchecked
            mode.setArguments(arguments);
        }
        return mode;
    }

    int getArgumentLength();

    List<T> getArguments();

    void setArguments(@NotNull final List<T> arguments);

    char[] getModes();
}