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package net.lenni0451.commandlib.nodes;


import net.lenni0451.commandlib.contexts.CompletionContext;
import net.lenni0451.commandlib.contexts.ExecutionContext;
import net.lenni0451.commandlib.exceptions.ArgumentParseException;
import net.lenni0451.commandlib.utils.StringReader;
import net.lenni0451.commandlib.utils.comparator.ArgumentComparator;

import javax.annotation.Nonnull;
import javax.annotation.Nullable;
import java.util.Set;

/**
 * The string node only matches the given string.

 * The case-sensitivity is defined by the {@link ArgumentComparator} of the command executor.
 *
 * @param  The type of the executor
 */
public class StringNode extends ArgumentNode {

    public StringNode(final String name) {
        super(name);
        this.weight = 100;
        this.providesArgument = false;
    }

    public StringNode(final String name, @Nullable final String description) {
        super(name, description);
        this.weight = 100;
        this.providesArgument = false;
    }

    @Nonnull
    @Override
    protected String parseValue(ExecutionContext executionContext, StringReader reader) throws ArgumentParseException, RuntimeException {
        String result = reader.readWordOrString();
        if (executionContext.getArgumentComparator().compare(result, this.name())) return this.name();
        throw ArgumentParseException.namedReason(this.name(), "Expected '" + this.name() + "'");
    }

    @Override
    protected void parseCompletions(Set completions, CompletionContext completionContext, ExecutionContext executionContext, StringReader stringReader) {
        completions.add(this.name());
    }

}