package net.minecraft.util.debugchart;

public abstract class AbstractSampleLogger implements SampleLogger {
	protected final long[] defaults;
	protected final long[] sample;

	protected AbstractSampleLogger(int size, long[] defaults) {
		if (defaults.length != size) {
			throw new IllegalArgumentException("defaults have incorrect length of " + defaults.length);
		} else {
			this.sample = new long[size];
			this.defaults = defaults;
		}
	}

	@Override
	public void logFullSample(long[] sample) {
		System.arraycopy(sample, 0, this.sample, 0, sample.length);
		this.useSample();
		this.resetSample();
	}

	@Override
	public void logSample(long value) {
		this.sample[0] = value;
		this.useSample();
		this.resetSample();
	}

	@Override
	public void logPartialSample(long value, int index) {
		if (index >= 1 && index < this.sample.length) {
			this.sample[index] = value;
		} else {
			throw new IndexOutOfBoundsException(index + " out of bounds for dimensions " + this.sample.length);
		}
	}

	protected abstract void useSample();

	protected void resetSample() {
		System.arraycopy(this.defaults, 0, this.sample, 0, this.defaults.length);
	}
}