/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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.apache.sling.feature.extension.apiregions.analyser;

import java.util.List;

import org.apache.sling.feature.ArtifactId;
import org.apache.sling.feature.analyser.task.AnalyserTask;
import org.apache.sling.feature.analyser.task.AnalyserTaskContext;
import org.apache.sling.feature.extension.apiregions.api.artifacts.ArtifactRules;
import org.apache.sling.feature.extension.apiregions.api.artifacts.Mode;
import org.apache.sling.feature.extension.apiregions.api.artifacts.VersionRule;
import org.apache.sling.feature.scanner.ArtifactDescriptor;
import org.apache.sling.feature.scanner.BundleDescriptor;


public class CheckArtifactRules implements AnalyserTask{

    @Override
    public String getId() {
        return "artifact-rules";
    }

    @Override
    public String getName() {
        return "Artifact rules analyser task";
    }

	@Override
	public void execute(final AnalyserTaskContext context) throws Exception {
        final ArtifactRules rules = ArtifactRules.getArtifactRules(context.getFeature());
        if ( rules == null ) {
            context.reportExtensionWarning(ArtifactRules.EXTENSION_NAME, "Artifact rules are not specified, unable to validate feature");
        } else {
            for(final BundleDescriptor bundle : context.getFeatureDescriptor().getBundleDescriptors()) {
                this.checkArtifact(context, rules.getBundleVersionRules(), rules.getMode(), bundle.getArtifact().getId());
            }
            for(final ArtifactDescriptor desc : context.getFeatureDescriptor().getArtifactDescriptors()) {
                this.checkArtifact(context, rules.getArtifactVersionRules(), rules.getMode(), desc.getArtifact().getId());
            }    
        }
	}

    void checkArtifact(final AnalyserTaskContext context, final List<VersionRule> rules, final Mode defaultMode, final ArtifactId id) {
        for(final VersionRule rule : rules) {
            if ( rule.getArtifactId() != null && rule.getArtifactId().isSame(id)) {
                if ( ! rule.isAllowed(id.getOSGiVersion())) {
                    String msg = rule.getMessage();
                    if ( msg == null ) {
                        msg = "Artifact with version " + id.getVersion() + " is not allowed.";
                    }
                    Mode m = defaultMode;
                    if ( rule.getMode() != null ) {
                        m = rule.getMode();
                    }
                    if ( m == Mode.LENIENT ) {
                        context.reportArtifactWarning(id, msg);
                    } else {
                        context.reportArtifactError(id, msg);
                    }
                }
            }
        }
    }
}