package code.kalter.longflight;

import java.io.IOException;
import java.io.InputStream;

/**
 * Для удобного чтения строк и других типов из файла. Является не более, чем
 * обёрткой для Inputstream
 *
 * @author KalterFive
 */
public class StringReader {

    private final InputStream inputStream;

    public StringReader(InputStream inputStream) {
        this.inputStream = inputStream;
    }

    public String nextString() throws IOException {
        StringBuffer stringBuffer = new StringBuffer();
        int c = inputStream.read();
        while (c != '\r' && c != -1) {
            stringBuffer.append((char) c);
            c = inputStream.read();
        }
        inputStream.read();
        return stringBuffer.toString();
    }

    // читает true or false
    public boolean nextBool() throws IOException {
        String line = nextString();
        if (line.equals("true")) {
            return true;
        } else if (line.equals("false")) {
            return false;
        } else {
            throw new IllegalArgumentException(line);
        }
    }

    public byte nextByte() throws IOException {
        return Byte.parseByte(nextString());
    }

    public short nextShort() throws IOException {
        return Short.parseShort(nextString());
    }

    public int nextInt() throws IOException {
        return Integer.parseInt(nextString());
    }

    public long nextLong() throws IOException {
        return Long.parseLong(nextString());
    }

    public float nextFloat() throws IOException {
        return Float.parseFloat(nextString());
    }

    public double nextDouble() throws IOException {
        return Double.parseDouble(nextString());
    }

    public void close() throws IOException {
        inputStream.close();
    }
}