/*
 * 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.component.jsonpath.springboot.test;


import java.io.File;
import java.io.FileInputStream;

import org.apache.camel.CamelContext;
import org.apache.camel.EndpointInject;
import org.apache.camel.ProducerTemplate;
import org.apache.camel.builder.ExpressionBuilder;
import org.apache.camel.builder.PredicateBuilder;
import org.apache.camel.builder.RouteBuilder;
import org.apache.camel.component.mock.MockEndpoint;
import org.apache.camel.jsonpath.JsonPath;
import org.apache.camel.spring.boot.CamelAutoConfiguration;
import org.apache.camel.spring.boot.CamelContextConfiguration;

import org.junit.jupiter.api.Test;


import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.test.annotation.DirtiesContext;
import org.apache.camel.test.spring.junit5.CamelSpringBootTest;


@DirtiesContext
@CamelSpringBootTest
@SpringBootTest(
    classes = {
        CamelAutoConfiguration.class,
        JsonPathStreamCachingCBRTest.class,
        JsonPathStreamCachingCBRTest.TestConfiguration.class
    }
)
public class JsonPathStreamCachingCBRTest {

    @Autowired
    CamelContext  context;
    
    @Autowired
    ProducerTemplate template;

    @EndpointInject("mock:cheap")
    MockEndpoint mockCheap;
    
    @EndpointInject("mock:average")
    MockEndpoint mockAverage;
    
    @EndpointInject("mock:expensive")
    MockEndpoint mockExpensive;

    @Bean
    CamelContextConfiguration contextConfiguration() {
        return new CamelContextConfiguration() {
            @Override
            public void beforeApplicationStart(CamelContext context) {
                context.getStreamCachingStrategy().setSpoolDirectory("target/tmp");
                context.getStreamCachingStrategy().setSpoolThreshold(-1);


            }

            @Override
            public void afterApplicationStart(CamelContext camelContext) {
                //do nothing here
            }
        };
    }

    // *************************************
    // Config
    // *************************************

    @Configuration
    public static class TestConfiguration {

        @Bean
        public RouteBuilder routeBuilder() {
            return new RouteBuilder() {
                @Override
                public void configure() throws Exception {
                    
                    from("direct:start")
                            .streamCaching()
                            .choice()
                            .when().jsonpath("$.store.book[?(@.price < 10)]")
                            .to("mock:cheap")
                            .when().jsonpath("$.store.book[?(@.price < 30)]")
                            .to("mock:average")
                            .otherwise()
                            .to("mock:expensive");

                    from("direct:bicycle")
                            .streamCaching()
                            .choice()
                            .when().method(new BeanPredicate())
                            .to("mock:cheap")
                            .otherwise()
                            .to("mock:expensive");

                    from("direct:bicycle2")
                            .streamCaching()
                            .choice()
                            .when(PredicateBuilder.isLessThan(
                                    ExpressionBuilder.languageExpression("jsonpath", "$.store.bicycle.price"),
                                    ExpressionBuilder.constantExpression(100)))
                            .to("mock:cheap")
                            .otherwise()
                            .to("mock:expensive");
                }
            };
        }
    }
    
    public static class BeanPredicate {
        public boolean checkPrice(@JsonPath("$.store.bicycle.price") double price) {
            return price < 100;
        }
    }

    @Test
    public void testCheapBicycle() throws Exception {
        sendMessageToBicycleRoute("direct:bicycle");
        MockEndpoint.resetMocks(context);
        sendMessageToBicycleRoute("direct:bicycle2");
    }

    private void sendMessageToBicycleRoute(String startPoint) throws Exception {
        MockEndpoint.resetMocks(context);
        mockCheap.expectedMessageCount(1);
        mockAverage.expectedMessageCount(0);
        mockExpensive.expectedMessageCount(0);

        template.sendBody(startPoint, new FileInputStream(new File("src/test/resources/cheap.json")));

        MockEndpoint.assertIsSatisfied(context);
    }

    @Test
    public void testCheap() throws Exception {
        MockEndpoint.resetMocks(context);
        mockCheap.expectedMessageCount(1);
        mockAverage.expectedMessageCount(0);
        mockExpensive.expectedMessageCount(0);

        template.sendBody("direct:start", new FileInputStream(new File("src/test/resources/cheap.json")));

        MockEndpoint.assertIsSatisfied(context);
    }

    @Test
    public void testAverage() throws Exception {
        
        MockEndpoint.resetMocks(context);
        mockCheap.expectedMessageCount(0);
        mockAverage.expectedMessageCount(1);
        mockExpensive.expectedMessageCount(0);
        template.sendBody("direct:start", new FileInputStream(new File("src/test/resources/average.json")));

        MockEndpoint.assertIsSatisfied(context);
    }

    @Test
    public void testExpensive() throws Exception {
        MockEndpoint.resetMocks(context);
        mockCheap.expectedMessageCount(0);
        mockAverage.expectedMessageCount(0);
        mockExpensive.expectedMessageCount(1);
        template.sendBody("direct:start", new FileInputStream(new File("src/test/resources/expensive.json")));

        MockEndpoint.assertIsSatisfied(context);
    }

}
