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package com.juick.ws.configuration;

import com.fasterxml.jackson.annotation.JsonInclude;
import com.fasterxml.jackson.datatype.jdk8.Jdk8Module;
import com.juick.ws.WebsocketComponent;
import com.juick.ws.XMPPConnection;
import com.juick.ws.components.CrosspostComponent;
import com.juick.ws.components.XMPPComponent;
import com.mitchellbosecke.pebble.PebbleEngine;
import com.mitchellbosecke.pebble.loader.Loader;
import com.mitchellbosecke.pebble.loader.ServletLoader;
import com.mitchellbosecke.pebble.spring4.PebbleViewResolver;
import com.mitchellbosecke.pebble.spring4.extension.SpringExtension;
import org.apache.commons.dbcp2.BasicDataSource;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.PropertySource;
import org.springframework.core.env.Environment;
import org.springframework.http.converter.HttpMessageConverter;
import org.springframework.http.converter.json.Jackson2ObjectMapperBuilder;
import org.springframework.http.converter.json.MappingJackson2HttpMessageConverter;
import org.springframework.jdbc.core.JdbcTemplate;
import org.springframework.web.servlet.ViewResolver;
import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurationSupport;
import org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping;
import org.springframework.web.socket.config.annotation.EnableWebSocket;
import org.springframework.web.socket.config.annotation.ServletWebSocketHandlerRegistry;
import org.springframework.web.socket.config.annotation.WebSocketConfigurer;
import org.springframework.web.socket.config.annotation.WebSocketHandlerRegistry;

import javax.inject.Inject;
import javax.servlet.ServletContext;
import java.util.List;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;

/**
 * Created by vitalyster on 28.06.2016.
 */
@Configuration
@EnableWebSocket
@ComponentScan(basePackages = {"com.juick"})
@PropertySource("classpath:juick.conf")
public class WebsocketConfiguration extends WebMvcConfigurationSupport implements WebSocketConfigurer {
    @Inject
    Environment env;
    @Inject
    ExecutorService service;
    @Bean
    WebsocketComponent wsHandler() {
        return new WebsocketComponent();
    }

    @Bean
    JdbcTemplate jdbc() {
        BasicDataSource dataSource = new BasicDataSource();
        dataSource.setDriverClassName(env.getProperty("datasource_driver", "com.mysql.jdbc.Driver"));
        dataSource.setUrl(env.getProperty("datasource_url"));
        return new JdbcTemplate(dataSource);
    }
    @Inject
    private ServletContext servletContext;

    @Bean
    public Loader templateLoader(){
        return new ServletLoader(servletContext);
    }

    @Bean
    public SpringExtension springExtension() {
        return new SpringExtension();
    }

    @Bean
    public PebbleEngine pebbleEngine() {
        return new PebbleEngine.Builder()
                .loader(this.templateLoader())
                .extension(springExtension())
                .build();
    }

    @Bean
    public ViewResolver viewResolver() {
        PebbleViewResolver viewResolver = new PebbleViewResolver();
        viewResolver.setPrefix("/WEB-INF/templates/");
        viewResolver.setSuffix(".html");
        viewResolver.setPebbleEngine(pebbleEngine());
        return viewResolver;
    }
    @Bean
    public XMPPConnection ws() {
        return new XMPPConnection(env, service);
    }
    @Bean
    public XMPPComponent xmpp() {
        return new XMPPComponent(env, service);
    }
    @Bean
    public CrosspostComponent crosspost() {
        return new CrosspostComponent(env, service);
    }
    @Bean
    public ExecutorService service() {
        return Executors.newCachedThreadPool();
    }

    @Override
    public RequestMappingHandlerMapping requestMappingHandlerMapping() {
        RequestMappingHandlerMapping mapping = super.requestMappingHandlerMapping();
        mapping.setUseSuffixPatternMatch(false);
        return mapping;
    }
    @Override
    public void registerWebSocketHandlers(WebSocketHandlerRegistry registry) {
        ((ServletWebSocketHandlerRegistry)registry).setOrder(2);
        registry.addHandler(wsHandler(), "/**").setAllowedOrigins("*");
    }

    @Override
    protected void addResourceHandlers(ResourceHandlerRegistry registry) {
        registry.setOrder(0);
        registry.addResourceHandler("/scripts.js").addResourceLocations("/");
        registry.addResourceHandler("/style.css").addResourceLocations("/");
    }

    @Override
    protected void configureMessageConverters(List<HttpMessageConverter<?>> converters) {
        Jackson2ObjectMapperBuilder builder = new Jackson2ObjectMapperBuilder()
                .serializationInclusion(JsonInclude.Include.NON_DEFAULT)
                .serializationInclusion(JsonInclude.Include.NON_NULL)
                .serializationInclusion(JsonInclude.Include.NON_ABSENT)
                .serializationInclusion(JsonInclude.Include.NON_EMPTY);
        MappingJackson2HttpMessageConverter converter = new MappingJackson2HttpMessageConverter(builder.build());
        converter.getObjectMapper().registerModule(new Jdk8Module());
        converters.add(converter);
        super.configureMessageConverters(converters);
    }
}