package me.chanjar.weixin.cp.demo;

import java.io.IOException;
import java.io.InputStream;
import java.util.Map;

import org.eclipse.jetty.server.Server;
import org.eclipse.jetty.servlet.ServletHandler;
import org.eclipse.jetty.servlet.ServletHolder;

import me.chanjar.weixin.common.error.WxErrorException;
import me.chanjar.weixin.common.session.WxSessionManager;
import me.chanjar.weixin.cp.WxCpConsts;
import me.chanjar.weixin.cp.api.WxCpService;
import me.chanjar.weixin.cp.api.impl.WxCpServiceImpl;
import me.chanjar.weixin.cp.bean.WxCpXmlMessage;
import me.chanjar.weixin.cp.bean.WxCpXmlOutMessage;
import me.chanjar.weixin.cp.bean.WxCpXmlOutTextMessage;
import me.chanjar.weixin.cp.config.WxCpConfigStorage;
import me.chanjar.weixin.cp.message.WxCpMessageHandler;
import me.chanjar.weixin.cp.message.WxCpMessageRouter;

public class WxCpDemoServer {

  private static WxCpConfigStorage wxCpConfigStorage;
  private static WxCpService wxCpService;
  private static WxCpMessageRouter wxCpMessageRouter;

  public static void main(String[] args) throws Exception {
    initWeixin();

    Server server = new Server(8080);

    ServletHandler servletHandler = new ServletHandler();
    server.setHandler(servletHandler);

    ServletHolder endpointServletHolder = new ServletHolder(new WxCpEndpointServlet(wxCpConfigStorage, wxCpService, wxCpMessageRouter));
    servletHandler.addServletWithMapping(endpointServletHolder, "/*");

    ServletHolder oauthServletHolder = new ServletHolder(new WxCpOAuth2Servlet(wxCpService));
    servletHandler.addServletWithMapping(oauthServletHolder, "/oauth2/*");

    server.start();
    server.join();
  }

  private static void initWeixin() throws IOException {
    try (InputStream is1 = ClassLoader
      .getSystemResourceAsStream("test-config.xml")) {
      WxCpDemoInMemoryConfigStorage config = WxCpDemoInMemoryConfigStorage
        .fromXml(is1);

      wxCpConfigStorage = config;
      wxCpService = new WxCpServiceImpl();
      wxCpService.setWxCpConfigStorage(config);

      WxCpMessageHandler handler = new WxCpMessageHandler() {
        @Override
        public WxCpXmlOutMessage handle(WxCpXmlMessage wxMessage,
                                        Map<String, Object> context, WxCpService wxService,
                                        WxSessionManager sessionManager) {
          WxCpXmlOutTextMessage m = WxCpXmlOutMessage.TEXT().content("测试加密消息")
            .fromUser(wxMessage.getToUserName())
            .toUser(wxMessage.getFromUserName()).build();
          return m;
        }
      };

      WxCpMessageHandler oauth2handler = new WxCpMessageHandler() {
        @Override
        public WxCpXmlOutMessage handle(WxCpXmlMessage wxMessage,
                                        Map<String, Object> context, WxCpService wxService,
                                        WxSessionManager sessionManager) {
          String href = "<a href=\""
            + wxService.getOauth2Service().buildAuthorizationUrl(wxCpConfigStorage.getOauth2redirectUri(), null)
            + "\">测试oauth2</a>";
          return WxCpXmlOutMessage.TEXT().content(href)
            .fromUser(wxMessage.getToUserName())
            .toUser(wxMessage.getFromUserName()).build();
        }
      };

      wxCpMessageRouter = new WxCpMessageRouter(wxCpService);
      wxCpMessageRouter.rule()
        .async(false)
        .content("哈哈") // 拦截内容为“哈哈”的消息
        .handler(handler)
        .end()
        .rule()
        .async(false)
        .content("oauth")
        .handler(oauth2handler)
        .end()
        .rule()
        .event(WxCpConsts.EventType.CHANGE_CONTACT)
        .handler(new WxCpMessageHandler() {
          @Override
          public WxCpXmlOutMessage handle(WxCpXmlMessage wxMessage, Map<String, Object> context, WxCpService wxCpService, WxSessionManager sessionManager) throws WxErrorException {
            System.out.println("通讯录发生变更");
            return null;
          }
        })
        .end();

    }
  }
}
