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/*
 * Copyright 2012 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.resource.transfer;

import org.apache.commons.lang.StringUtils;
import org.gradle.internal.logging.progress.ProgressLogger;

public class ResourceOperation {
    public enum Type{
        download,
        upload;

        public String getCapitalized() {
            return StringUtils.capitalize(toString());
        }
    }
    private final ProgressLogger progressLogger;
    private final Type operationType;
    private final String contentLengthString;
    private final String resourceName;

    private long loggedKBytes;
    private long totalProcessedBytes;

    public ResourceOperation(ProgressLogger progressLogger, Type type, long contentLength, String resourceName) {
        this.progressLogger = progressLogger;
        this.operationType = type;
        this.contentLengthString = getLengthText(contentLength != 0 ? contentLength : null);
        this.resourceName = resourceName;
    }

    private String getLengthText(Long bytes) {
        if (bytes == null) {
            return "unknown size";
        }
        if (bytes < 1024) {
            return bytes + " B";
        } else if (bytes < 1048576) {
            return (bytes / 1024) + " KB";
        } else {
            return String.format("%.2f MB", bytes / 1048576.0);
        }
    }

    public void logProcessedBytes(long processedBytes) {
        totalProcessedBytes += processedBytes;
        long processedKB = totalProcessedBytes / 1024;
        if (processedKB > loggedKBytes) {
            loggedKBytes = processedKB;
            String progressMessage = String.format("%s/%s %sed", getLengthText(totalProcessedBytes), contentLengthString, operationType);
            progressLogger.progress(progressMessage);
        }
    }

    public void completed() {
        this.progressLogger.completed();
    }
}