/*
 * Copyright 2013 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.gradle.internal.progress;

class PercentageProgressFormatter implements ProgressFormatter {
    private int current;
    private int total;
    private String prefix;

    public PercentageProgressFormatter(String prefix, int total) {
        this.total = total;
        this.prefix = prefix;
    }

    public String incrementAndGetProgress() {
        if (current == total) {
            throw new IllegalStateException("Cannot increment beyond the total of: " + total);
        }
        current++;
        return getProgress();
    }

    public String getProgress() {
        return prefix + " " + (int) (current * 100.0 / total) + "%";
    }
}
