package com.uas.kanban;

import java.nio.charset.Charset;
import java.util.Arrays;
import java.util.List;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.web.servlet.FilterRegistrationBean;
import org.springframework.boot.web.servlet.ServletRegistrationBean;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
import org.springframework.http.MediaType;
import org.springframework.http.converter.HttpMessageConverter;
import org.springframework.http.converter.StringHttpMessageConverter;
import org.springframework.web.servlet.config.annotation.CorsRegistry;
import org.springframework.web.servlet.config.annotation.InterceptorRegistry;
import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry;
import org.springframework.web.servlet.config.annotation.ViewControllerRegistry;
import org.springframework.web.servlet.config.annotation.ViewResolverRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter;
import org.springframework.web.servlet.view.InternalResourceViewResolver;

import com.alibaba.druid.support.http.StatViewServlet;
import com.alibaba.druid.support.http.WebStatFilter;
import com.alibaba.fastjson.serializer.SerializerFeature;
import com.alibaba.fastjson.support.config.FastJsonConfig;
import com.alibaba.fastjson.support.spring.FastJsonHttpMessageConverter;
import com.uas.kanban.filter.SecurityInterceptor;

/**
 * Web相关配置
 * 
 * @author sunyj
 * @since 2017年2月17日 下午5:45:38
 */
@Configuration
@ComponentScan(basePackages = "com.uas.kanban.controller")
public class WebAppConfiguration extends WebMvcConfigurerAdapter {

	@Override
	public void addResourceHandlers(ResourceHandlerRegistry registry) {
		// Spring boot默认资源路径在src/main/resources下，而非/src/main/webapp
		// 使用/src/main/webapp下资源均需在此添加
		registry.addResourceHandler("/static/**").addResourceLocations("/resources/");
		registry.addResourceHandler("/WEB-INF/**").addResourceLocations("/WEB-INF/");
		registry.addResourceHandler("/app/**").addResourceLocations("/app/");
		super.addResourceHandlers(registry);
	}

	@Override
	public void configureViewResolvers(ViewResolverRegistry registry) {
		InternalResourceViewResolver viewResolver = new InternalResourceViewResolver("/WEB-INF/views/", ".html");
		viewResolver.setContentType("text/html;charset=UTF-8");
		registry.viewResolver(viewResolver);
		super.configureViewResolvers(registry);
	}

	@Override
	public void addViewControllers(ViewControllerRegistry registry) {
		registry.addViewController("/").setViewName("desktop");
		registry.addViewController("/index").setViewName("desktop");
		registry.addViewController("/desktop").setViewName("desktop");
		registry.addViewController("/board").setViewName("board");
		registry.addViewController("/boardshow").setViewName("boardshow");
		registry.addViewController("/login").setViewName("login");

		registry.addViewController("/console").setViewName("console");
		registry.addViewController("/fileUpload").setViewName("fileUpload");
		super.addViewControllers(registry);
	}

	@Override
	public void configureMessageConverters(List<HttpMessageConverter<?>> converters) {
		FastJsonHttpMessageConverter fastJsonHttpMessageConverter = new FastJsonHttpMessageConverter();
		fastJsonHttpMessageConverter.setSupportedMediaTypes(Arrays.asList(MediaType.APPLICATION_JSON_UTF8));
		FastJsonConfig fastJsonConfig = new FastJsonConfig();
		fastJsonConfig.setSerializerFeatures(SerializerFeature.DisableCircularReferenceDetect);
		fastJsonHttpMessageConverter.setFastJsonConfig(fastJsonConfig);
		converters.add(fastJsonHttpMessageConverter);

		StringHttpMessageConverter stringHttpMessageConverter = new StringHttpMessageConverter(
				Charset.forName("UTF-8"));
		stringHttpMessageConverter.setSupportedMediaTypes(Arrays.asList(MediaType.TEXT_HTML));
		converters.add(stringHttpMessageConverter);
		super.configureMessageConverters(converters);
	}

	/*
	 * 允许跨域访问
	 */
	@Override
	public void addCorsMappings(CorsRegistry registry) {
		registry.addMapping("/**").allowedOrigins("*");
	}

	@Bean
	public ServletRegistrationBean servletRegistrationBean() {
		return new ServletRegistrationBean(new StatViewServlet(), "/druid/*");
	}

	@Bean
	public FilterRegistrationBean filterRegistrationBean() {
		FilterRegistrationBean filterRegistrationBean = new FilterRegistrationBean();
		filterRegistrationBean.setFilter(new WebStatFilter());
		filterRegistrationBean.addUrlPatterns("/*");
		filterRegistrationBean.addInitParameter("exclusions",
				"*.js,*.gif,*.jpg,*.png,*.bmp,*.css,*.ico,*.html,/druid/*");
		return filterRegistrationBean;
	}

	@Autowired
	private SecurityInterceptor securityInterceptor;

	@Override
	public void addInterceptors(InterceptorRegistry registry) {
		registry.addInterceptor(securityInterceptor).addPathPatterns("/*").excludePathPatterns("/WEB-INF/*","/login","/error");
	}

}