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package me.chanjar.weixin.cp.bean;

import com.google.gson.JsonArray;
import com.google.gson.JsonObject;
import lombok.AllArgsConstructor;
import lombok.Builder;
import lombok.Data;
import lombok.NoArgsConstructor;
import me.chanjar.weixin.cp.WxCpConsts.AppChatMsgType;
import me.chanjar.weixin.cp.bean.article.MpnewsArticle;
import me.chanjar.weixin.cp.bean.article.NewArticle;

import java.io.Serializable;
import java.util.List;

/**
 *  * 应用推送消息
 * Created by Binary Wang on 2019/1/26.
 * 
 *
 * @author Binary Wang
 */
@Data
@Builder
@NoArgsConstructor
@AllArgsConstructor
public class WxCpAppChatMessage implements Serializable {
  private static final long serialVersionUID = -5469013416372240229L;

  private String msgType;
  private String content;
  private String chatId;
  private String mediaId;
  private String title;
  private String description;
  private Boolean safe;
  private String url;
  private String btnTxt;
  private List articles;
  private List mpnewsArticles;

  /**
   * 构建文本消息.
   */
  public static WxCpAppChatMessage buildTextMsg(String chatId, String content, boolean safe) {
    final WxCpAppChatMessage message = new WxCpAppChatMessage();
    message.setMsgType(AppChatMsgType.TEXT);
    message.setContent(content);
    message.setChatId(chatId);
    message.setSafe(safe);
    return message;
  }

  /**
   * 生成json字符串.
   */
  public String toJson() {
    JsonObject messageJson = new JsonObject();
    messageJson.addProperty("msgtype", this.getMsgType());
    messageJson.addProperty("chatid", this.getChatId());

    if (this.getSafe() != null && this.getSafe()) {
      messageJson.addProperty("safe", 1);
    }

    this.handleMsgType(messageJson);

    return messageJson.toString();
  }

  private void handleMsgType(JsonObject messageJson) {
    switch (this.getMsgType()) {
      case AppChatMsgType.TEXT: {
        JsonObject text = new JsonObject();
        text.addProperty("content", this.getContent());
        messageJson.add("text", text);
        break;
      }
      case AppChatMsgType.MARKDOWN: {
        JsonObject text = new JsonObject();
        text.addProperty("content", this.getContent());
        messageJson.add("markdown", text);
        break;
      }
      case AppChatMsgType.TEXTCARD: {
        JsonObject text = new JsonObject();
        text.addProperty("title", this.getTitle());
        text.addProperty("description", this.getDescription());
        text.addProperty("url", this.getUrl());
        text.addProperty("btntxt", this.getBtnTxt());
        messageJson.add("textcard", text);
        break;
      }
      case AppChatMsgType.IMAGE: {
        JsonObject image = new JsonObject();
        image.addProperty("media_id", this.getMediaId());
        messageJson.add("image", image);
        break;
      }
      case AppChatMsgType.FILE: {
        JsonObject image = new JsonObject();
        image.addProperty("media_id", this.getMediaId());
        messageJson.add("file", image);
        break;
      }
      case AppChatMsgType.VOICE: {
        JsonObject voice = new JsonObject();
        voice.addProperty("media_id", this.getMediaId());
        messageJson.add("voice", voice);
        break;
      }
      case AppChatMsgType.VIDEO: {
        JsonObject video = new JsonObject();
        video.addProperty("media_id", this.getMediaId());
        video.addProperty("title", this.getTitle());
        video.addProperty("description", this.getDescription());
        messageJson.add("video", video);
        break;
      }
      case AppChatMsgType.NEWS: {
        JsonObject newsJsonObject = new JsonObject();
        JsonArray articleJsonArray = new JsonArray();
        for (NewArticle article : this.getArticles()) {
          JsonObject articleJson = new JsonObject();
          articleJson.addProperty("title", article.getTitle());
          articleJson.addProperty("description", article.getDescription());
          articleJson.addProperty("url", article.getUrl());
          articleJson.addProperty("picurl", article.getPicUrl());
          articleJsonArray.add(articleJson);
        }
        newsJsonObject.add("articles", articleJsonArray);
        messageJson.add("news", newsJsonObject);
        break;
      }
      case AppChatMsgType.MPNEWS: {
        JsonObject newsJsonObject = new JsonObject();
        if (this.getMediaId() != null) {
          newsJsonObject.addProperty("media_id", this.getMediaId());
        } else {
          JsonArray articleJsonArray = new JsonArray();
          for (MpnewsArticle article : this.getMpnewsArticles()) {
            JsonObject articleJson = new JsonObject();
            articleJson.addProperty("title", article.getTitle());
            articleJson.addProperty("thumb_media_id", article.getThumbMediaId());
            articleJson.addProperty("author", article.getAuthor());
            articleJson.addProperty("content_source_url", article.getContentSourceUrl());
            articleJson.addProperty("content", article.getContent());
            articleJson.addProperty("digest", article.getDigest());
            articleJsonArray.add(articleJson);
          }

          newsJsonObject.add("articles", articleJsonArray);
        }
        messageJson.add("mpnews", newsJsonObject);
        break;
      }
      default: {
        //do nothing
      }
    }
  }
}