
package org.apache.camel.component.aws.ddb;

import java.util.HashMap;
import java.util.Map;

import com.amazonaws.services.dynamodbv2.model.AttributeAction;
import com.amazonaws.services.dynamodbv2.model.AttributeValue;
import com.amazonaws.services.dynamodbv2.model.AttributeValueUpdate;
import com.amazonaws.services.dynamodbv2.model.ExpectedAttributeValue;

import org.apache.camel.Exchange;
import org.apache.camel.impl.DefaultCamelContext;
import org.apache.camel.support.DefaultExchange;
import org.junit.Before;
import org.junit.Test;
import static org.junit.Assert.assertEquals;

public class UpdateItemCommandTest {

    private UpdateItemCommand command;
    private AmazonDDBClientMock ddbClient;
    private DdbConfiguration configuration;
    private Exchange exchange;

    @Before
    public void setUp() {
        ddbClient = new AmazonDDBClientMock();
        configuration = new DdbConfiguration();
        configuration.setTableName("DOMAIN1");
        exchange = new DefaultExchange(new DefaultCamelContext());
        command = new UpdateItemCommand(ddbClient, configuration, exchange);
    }

    @Test
    public void execute() {
        Map<String, AttributeValue> key = new HashMap<>();
        key.put("1", new AttributeValue("Key_1"));
        exchange.getIn().setHeader(DdbConstants.KEY, key);

        Map<String, AttributeValueUpdate> attributeMap = new HashMap<>();
        AttributeValueUpdate attributeValue = new AttributeValueUpdate(
                new AttributeValue("new value"), AttributeAction.ADD);
        attributeMap.put("name", attributeValue);
        exchange.getIn().setHeader(DdbConstants.UPDATE_VALUES, attributeMap);

        Map<String, ExpectedAttributeValue> expectedAttributeValueMap = new HashMap<>();
        expectedAttributeValueMap
                .put("name", new ExpectedAttributeValue(new AttributeValue("expected value")));
        exchange.getIn().setHeader(DdbConstants.UPDATE_CONDITION, expectedAttributeValueMap);
        exchange.getIn().setHeader(DdbConstants.RETURN_VALUES, "ALL_OLD");

        command.execute();

        assertEquals("DOMAIN1", ddbClient.updateItemRequest.getTableName());
        assertEquals(attributeMap, ddbClient.updateItemRequest.getAttributeUpdates());
        assertEquals(key, ddbClient.updateItemRequest.getKey());
        assertEquals(expectedAttributeValueMap, ddbClient.updateItemRequest.getExpected());
        assertEquals("ALL_OLD", ddbClient.updateItemRequest.getReturnValues());
        assertEquals(new AttributeValue("attrValue"),
                exchange.getIn().getHeader(DdbConstants.ATTRIBUTES, Map.class).get(
                        "attrName"));
    }
}
