/**
 * 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.camel.processor.interceptor;

import java.util.ArrayList;
import java.util.EventObject;
import java.util.List;

import org.apache.camel.ContextTestSupport;
import org.apache.camel.Exchange;
import org.apache.camel.Processor;
import org.apache.camel.builder.RouteBuilder;
import org.apache.camel.impl.BreakpointSupport;
import org.apache.camel.impl.ConditionSupport;
import org.apache.camel.impl.DefaultDebugger;
import org.apache.camel.management.event.ExchangeCompletedEvent;
import org.apache.camel.model.ProcessorDefinition;
import org.apache.camel.model.ToDefinition;
import org.apache.camel.spi.Breakpoint;
import org.apache.camel.spi.Condition;

/**
 * @version $Revision$
 */
public class DebugTest extends ContextTestSupport {

    private List<String> logs = new ArrayList<String>();
    private Condition camelCondition;
    private Condition mockCondition;
    private Condition doneCondition;
    private Breakpoint breakpoint;

    @Override
    protected void setUp() throws Exception {
        super.setUp();

        breakpoint = new BreakpointSupport() {
            public void beforeProcess(Exchange exchange, Processor processor, ProcessorDefinition definition) {
                String body = exchange.getIn().getBody(String.class);
                logs.add("Breakpoint at " + definition + " with body: " + body);
            }

            public void onEvent(Exchange exchange, EventObject event, ProcessorDefinition definition) {
                String body = exchange.getIn().getBody(String.class);
                logs.add("Breakpoint event " + event.getClass().getSimpleName() + " with body: " + body);
            }
        };

        camelCondition = new ConditionSupport() {
            public boolean matchProcess(Exchange exchange, Processor processor, ProcessorDefinition definition) {
                return body().contains("Camel").matches(exchange);
            }
        };

        mockCondition = new ConditionSupport() {
            public boolean matchProcess(Exchange exchange, Processor processor, ProcessorDefinition definition) {
                // match when sending to mocks
                if (definition instanceof ToDefinition) {
                    ToDefinition to = (ToDefinition) definition;
                    return to.getUriOrRef().startsWith("mock");
                }
                return false;
            }
        };

        doneCondition = new ConditionSupport() {
            @Override
            public boolean matchEvent(Exchange exchange, EventObject event) {
                return event instanceof ExchangeCompletedEvent;
            }
        };
    }

    public void testDebug() throws Exception {
        context.getDebugger().addBreakpoint(breakpoint, camelCondition);

        getMockEndpoint("mock:result").expectedBodiesReceived("Hello World", "Hello Camel");

        template.sendBody("direct:start", "Hello World");
        template.sendBody("direct:start", "Hello Camel");

        assertMockEndpointsSatisfied();

        assertEquals(2, logs.size());
        assertEquals("Breakpoint at To[log:foo] with body: Hello Camel", logs.get(0));
        assertEquals("Breakpoint at To[mock:result] with body: Hello Camel", logs.get(1));
    }

    public void testDebugEvent() throws Exception {
        context.getDebugger().addBreakpoint(breakpoint, doneCondition);

        getMockEndpoint("mock:result").expectedBodiesReceived("Hello World", "Hello Camel");

        template.sendBody("direct:start", "Hello World");
        template.sendBody("direct:start", "Hello Camel");

        assertMockEndpointsSatisfied();

        assertEquals(2, logs.size());
        assertEquals("Breakpoint event ExchangeCompletedEvent with body: Hello World", logs.get(0));
        assertEquals("Breakpoint event ExchangeCompletedEvent with body: Hello Camel", logs.get(1));
    }

    public void testDebugSuspended() throws Exception {
        context.getDebugger().addBreakpoint(breakpoint, mockCondition, camelCondition);

        // suspend the breakpoint
        context.getDebugger().suspendAllBreakpoints();

        getMockEndpoint("mock:result").expectedBodiesReceived("Hello World", "Hello Camel");

        template.sendBody("direct:start", "Hello World");
        template.sendBody("direct:start", "Hello Camel");

        assertMockEndpointsSatisfied();

        assertEquals(0, logs.size());

        // resume the breakpoint
        context.getDebugger().activateAllBreakpoints();

        // reset and test again now the breakpoint is active
        resetMocks();

        getMockEndpoint("mock:result").expectedBodiesReceived("Hello World", "Hello Camel");

        template.sendBody("direct:start", "Hello World");
        template.sendBody("direct:start", "Hello Camel");

        assertMockEndpointsSatisfied();

        assertEquals(1, logs.size());
        assertEquals("Breakpoint at To[mock:result] with body: Hello Camel", logs.get(0));
    }

    public void testDebugRemoveBreakpoint() throws Exception {
        context.getDebugger().addBreakpoint(breakpoint);

        getMockEndpoint("mock:result").expectedBodiesReceived("Hello World");

        template.sendBody("direct:start", "Hello World");

        assertMockEndpointsSatisfied();

        assertEquals(7, logs.size());

        // remove the breakpoint
        context.getDebugger().removeBreakpoint(breakpoint);

        // reset and test again now the breakpoint is removed
        resetMocks();
        logs.clear();

        getMockEndpoint("mock:result").expectedBodiesReceived("Hello Camel");

        template.sendBody("direct:start", "Hello Camel");

        assertMockEndpointsSatisfied();

        assertEquals(0, logs.size());
    }

    @Override
    protected RouteBuilder createRouteBuilder() throws Exception {
        return new RouteBuilder() {
            @Override
            public void configure() throws Exception {
                // use debugger
                context.setDebugger(new DefaultDebugger());

                from("direct:start").to("log:foo").to("mock:result");
            }
        };
    }

}
