/*
 * Copyright 2009 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.util;

import org.gradle.internal.Factory;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.util.Collections;
import java.util.HashSet;
import java.util.Set;

public class DeprecationLogger {
    private static final Logger LOGGER = LoggerFactory.getLogger(DeprecationLogger.class);
    private static final Set<String> PLUGINS = Collections.synchronizedSet(new HashSet<String>());
    private static final Set<String> METHODS = Collections.synchronizedSet(new HashSet<String>());
    private static final Set<String> PROPERTIES = Collections.synchronizedSet(new HashSet<String>());
    private static final Set<String> NAMED_PARAMETERS = Collections.synchronizedSet(new HashSet<String>());
    
    private static final ThreadLocal<Boolean> enabled = new ThreadLocal<Boolean>() {
        @Override
        protected Boolean initialValue() {
            return true;
        }
    };

    public static void reset() {
        PLUGINS.clear();
        METHODS.clear();
        PROPERTIES.clear();
        NAMED_PARAMETERS.clear();
    }

    public static void nagUserOfReplacedPlugin(String pluginName, String replacement) {
        if (isEnabled() && PLUGINS.add(pluginName)) {
            LOGGER.warn(String.format(
                    "The %s plugin has been deprecated and will be removed in the next version of Gradle. Please use the %s plugin instead.",
                    pluginName, replacement));
        }
    }
    
    public static void nagUserOfReplacedMethod(String methodName, String replacement) {
        if (isEnabled() && METHODS.add(methodName)) {
            LOGGER.warn(String.format(
                    "The %s method has been deprecated and will be removed in the next version of Gradle. Please use the %s method instead.",
                    methodName, replacement));
        }
    }

    public static void nagUserOfReplacedProperty(String propertyName, String replacement) {
        if (isEnabled() && METHODS.add(propertyName)) {
            LOGGER.warn(String.format(
                    "The %s property has been deprecated and will be removed in the next version of Gradle. Please use the %s property instead.",
                    propertyName, replacement));
        }
    }

    public static void nagUserOfDiscontinuedMethod(String methodName) {
        if (isEnabled() && METHODS.add(methodName)) {
            LOGGER.warn(String.format("The %s method has been deprecated and will be removed in the next version of Gradle.",
                    methodName));
        }
    }

    public static void nagUserOfReplacedNamedParameter(String parameterName, String replacement) {
        if (isEnabled() && NAMED_PARAMETERS.add(parameterName)) {
            LOGGER.warn(String.format(
                    "The %s named parameter has been deprecated and will be removed in the next version of Gradle. Please use the %s named parameter instead.",
                    parameterName, replacement));
        }
    }

    public static void nagUserWith(String message) {
        if (isEnabled() && METHODS.add(message)) {
            LOGGER.warn(message);
        }
    }
    
    public static <T> T whileDisabled(Factory<T> factory) {
        enabled.set(false);
        try {
            return factory.create();
        } finally {
            enabled.set(true);
        }
    }
    
    private static boolean isEnabled() {
        return enabled.get();
    }
}

@@ -1391,23 +1391,23 @@
 oolean%3E 
-enabled
+ENABLED
  = new T

rename constant to match convention.