/*
 * 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.usergrid.persistence.core.aws;


import org.junit.Assume;
import org.junit.internal.runners.model.MultipleFailureException;
import org.junit.rules.TestRule;
import org.junit.runner.Description;
import org.junit.runners.model.Statement;

import com.amazonaws.AmazonClientException;


/**
 * Created in an attempt to mark no aws cred tests as ignored.  Blocked by this issue
 * https://github.com/junit-team/junit/issues/116
 *
 * Until then, simply marks as passed, which is a bit dangerous
 */
public class NoAWSCredsRule implements TestRule {

    public Statement apply( final Statement base, final Description description ) {
        return new Statement() {
            @Override
            public void evaluate() throws Throwable {

                try {
                    base.evaluate();
                }
                catch ( Throwable t ) {

                    if ( !isMissingCredsException( t ) ) {
                        throw t;
                    }

                    //do this so our test gets marked as ignored.  Not pretty, but it works
                    Assume.assumeTrue( false );


                }
            }
        };
    }


    private boolean isMissingCredsException( final Throwable t ) {

        if ( t instanceof AmazonClientException ) {

            final AmazonClientException ace = ( AmazonClientException ) t;

            if ( ace.getMessage().contains( "could not get aws access key" ) || ace.getMessage().contains(
                "could not get aws secret key from system properties" ) ) {
                //swallow
                return true;
            }
        }

        /**
         * Handle the multiple failure junit trace
         */
        if( t instanceof MultipleFailureException ){
            for(final Throwable failure : ((MultipleFailureException)t).getFailures()){
                final boolean isMissingCreds = isMissingCredsException( failure );

                if(isMissingCreds){
                    return true;
                }
            }
        }
        final Throwable cause = t.getCause();

        if ( cause == null ) {
            return false;
        }


        return isMissingCredsException( cause );
    }
}