/*
 * 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.dolphinscheduler.alert.utils;

import org.apache.dolphinscheduler.common.enums.ShowType;
import org.apache.dolphinscheduler.common.utils.JSONUtils;
import org.apache.dolphinscheduler.common.utils.StringUtils;
import org.apache.dolphinscheduler.plugin.model.AlertData;

import org.apache.http.HttpEntity;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.util.EntityUtils;

import java.io.IOException;
import java.util.Collection;
import java.util.Iterator;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
import java.util.Set;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * Enterprise WeChat utils
 */
public class EnterpriseWeChatUtils {

    public static final Logger logger = LoggerFactory.getLogger(EnterpriseWeChatUtils.class);
    public static final String ENTERPRISE_WE_CHAT_AGENT_ID = PropertyUtils.getString(Constants.ENTERPRISE_WECHAT_AGENT_ID);
    public static final String ENTERPRISE_WE_CHAT_USERS = PropertyUtils.getString(Constants.ENTERPRISE_WECHAT_USERS);
    private static final String ENTERPRISE_WE_CHAT_CORP_ID = PropertyUtils.getString(Constants.ENTERPRISE_WECHAT_CORP_ID);
    private static final String ENTERPRISE_WE_CHAT_SECRET = PropertyUtils.getString(Constants.ENTERPRISE_WECHAT_SECRET);
    private static final String ENTERPRISE_WE_CHAT_TOKEN_URL = PropertyUtils.getString(Constants.ENTERPRISE_WECHAT_TOKEN_URL);
    private static final String ENTERPRISE_WE_CHAT_TOKEN_URL_REPLACE = ENTERPRISE_WE_CHAT_TOKEN_URL == null ? null : ENTERPRISE_WE_CHAT_TOKEN_URL
            .replaceAll("\\{corpId}", ENTERPRISE_WE_CHAT_CORP_ID)
            .replaceAll("\\{secret}", ENTERPRISE_WE_CHAT_SECRET);
    private static final String ENTERPRISE_WE_CHAT_PUSH_URL = PropertyUtils.getString(Constants.ENTERPRISE_WECHAT_PUSH_URL);
    private static final String ENTERPRISE_WE_CHAT_TEAM_SEND_MSG = PropertyUtils.getString(Constants.ENTERPRISE_WECHAT_TEAM_SEND_MSG);
    private static final String ENTERPRISE_WE_CHAT_USER_SEND_MSG = PropertyUtils.getString(Constants.ENTERPRISE_WECHAT_USER_SEND_MSG);

    private static final String agentIdRegExp = "\\{agentId}";
    private static final String msgRegExp = "\\{msg}";
    private static final String userRegExp = "\\{toUser}";

    /**
     * get Enterprise WeChat is enable
     *
     * @return isEnable
     */
    public static boolean isEnable() {
        Boolean isEnable = null;
        try {
            isEnable = PropertyUtils.getBoolean(Constants.ENTERPRISE_WECHAT_ENABLE);
        } catch (Exception e) {
            logger.error(e.getMessage(), e);
        }
        if (isEnable == null) {
            return false;
        }
        return isEnable;
    }

    /**
     * get Enterprise WeChat token info
     *
     * @return token string info
     * @throws IOException the IOException
     */
    public static String getToken() throws IOException {
        String resp;

        CloseableHttpClient httpClient = HttpClients.createDefault();
        try {
            HttpGet httpGet = new HttpGet(ENTERPRISE_WE_CHAT_TOKEN_URL_REPLACE);
            CloseableHttpResponse response = httpClient.execute(httpGet);
            try {
                HttpEntity entity = response.getEntity();
                resp = EntityUtils.toString(entity, Constants.UTF_8);
                EntityUtils.consume(entity);
            } finally {
                response.close();
            }

            Map<String, String> map = JSONUtils.toMap(resp);
            if (map != null) {
                return map.get("access_token");
            } else {
                return null;
            }
        } finally {
            httpClient.close();
        }
    }

    /**
     * make team single Enterprise WeChat message
     *
     * @param toParty the toParty
     * @param agentId the agentId
     * @param msg the msg
     * @return Enterprise WeChat send message
     */
    public static String makeTeamSendMsg(String toParty, String agentId, String msg) {
        return ENTERPRISE_WE_CHAT_TEAM_SEND_MSG.replaceAll("\\{toParty}", toParty)
                .replaceAll(agentIdRegExp, agentId)
                .replaceAll(msgRegExp, msg);
    }

    /**
     * make team multi Enterprise WeChat message
     *
     * @param toParty the toParty
     * @param agentId the agentId
     * @param msg the msg
     * @return Enterprise WeChat send message
     */
    public static String makeTeamSendMsg(Collection<String> toParty, String agentId, String msg) {
        String listParty = FuncUtils.mkString(toParty, "|");
        return ENTERPRISE_WE_CHAT_TEAM_SEND_MSG.replaceAll("\\{toParty}", listParty)
                .replaceAll(agentIdRegExp, agentId)
                .replaceAll(msgRegExp, msg);
    }

    /**
     * make team single user message
     *
     * @param toUser the toUser
     * @param agentId the agentId
     * @param msg the msg
     * @return Enterprise WeChat send message
     */
    public static String makeUserSendMsg(String toUser, String agentId, String msg) {
        return ENTERPRISE_WE_CHAT_USER_SEND_MSG.replaceAll("\\{toUser}", toUser)
                .replaceAll(agentIdRegExp, agentId)
                .replaceAll(msgRegExp, msg);
    }

    /**
     * make team multi user message
     *
     * @param toUser the toUser
     * @param agentId the agentId
     * @param msg the msg
     * @return Enterprise WeChat send message
     */
    public static String makeUserSendMsg(Collection<String> toUser, String agentId, String msg) {
        String listUser = FuncUtils.mkString(toUser, "|");
        return ENTERPRISE_WE_CHAT_USER_SEND_MSG.replaceAll(userRegExp, listUser)
                .replaceAll(agentIdRegExp, agentId)
                .replaceAll(msgRegExp, msg);
    }

    /**
     * send Enterprise WeChat
     *
     * @param charset the charset
     * @param data the data
     * @param token the token
     * @return Enterprise WeChat resp, demo: {"errcode":0,"errmsg":"ok","invaliduser":""}
     * @throws IOException the IOException
     */
    public static String sendEnterpriseWeChat(String charset, String data, String token) throws IOException {
        String enterpriseWeChatPushUrlReplace = ENTERPRISE_WE_CHAT_PUSH_URL.replaceAll("\\{token}", token);

        CloseableHttpClient httpClient = HttpClients.createDefault();
        try {
            HttpPost httpPost = new HttpPost(enterpriseWeChatPushUrlReplace);
            httpPost.setEntity(new StringEntity(data, charset));
            CloseableHttpResponse response = httpClient.execute(httpPost);
            String resp;
            try {
                HttpEntity entity = response.getEntity();
                resp = EntityUtils.toString(entity, charset);
                EntityUtils.consume(entity);
            } finally {
                response.close();
            }
            logger.info("Enterprise WeChat send [{}], param:{}, resp:{}",
                    ENTERPRISE_WE_CHAT_PUSH_URL, data, resp);
            return resp;
        } finally {
            httpClient.close();
        }
    }

    /**
     * convert table to markdown style
     *
     * @param title the title
     * @param content the content
     * @return markdown table content
     */
    public static String markdownTable(String title, String content) {
        List<LinkedHashMap> mapItemsList = JSONUtils.toList(content, LinkedHashMap.class);
        StringBuilder contents = new StringBuilder(200);

        if (null != mapItemsList) {
            for (LinkedHashMap mapItems : mapItemsList) {
                Set<Map.Entry<String, Object>> entries = mapItems.entrySet();
                Iterator<Map.Entry<String, Object>> iterator = entries.iterator();
                StringBuilder t = new StringBuilder(String.format("`%s`%s", title, Constants.MARKDOWN_ENTER));

                while (iterator.hasNext()) {

                    Map.Entry<String, Object> entry = iterator.next();
                    t.append(Constants.MARKDOWN_QUOTE);
                    t.append(entry.getKey()).append(":").append(entry.getValue());
                    t.append(Constants.MARKDOWN_ENTER);
                }
                contents.append(t);
            }
        }
        return contents.toString();
    }

    /**
     * convert text to markdown style
     *
     * @param title the title
     * @param content the content
     * @return markdown text
     */
    public static String markdownText(String title, String content) {
        if (StringUtils.isNotEmpty(content)) {
            List<LinkedHashMap> mapItemsList = JSONUtils.toList(content, LinkedHashMap.class);
            if (null != mapItemsList) {
                StringBuilder contents = new StringBuilder(100);
                contents.append(String.format("`%s`%n", title));
                for (LinkedHashMap mapItems : mapItemsList) {

                    Set<Map.Entry<String, Object>> entries = mapItems.entrySet();
                    Iterator<Map.Entry<String, Object>> iterator = entries.iterator();
                    while (iterator.hasNext()) {
                        Map.Entry<String, Object> entry = iterator.next();
                        contents.append(Constants.MARKDOWN_QUOTE);
                        contents.append(entry.getKey()).append(":").append(entry.getValue());
                        contents.append(Constants.MARKDOWN_ENTER);
                    }

                }
                return contents.toString();
            }

        }
        return null;
    }

    /**
     * Determine the mardown style based on the show type of the alert
     *
     * @return the markdown alert table/text
     */
    public static String markdownByAlert(AlertData alert) {
        String result = "";
        if (alert.getShowType().equals(ShowType.TABLE.getDescp())) {
            result = markdownTable(alert.getTitle(), alert.getContent());
        } else if (alert.getShowType().equals(ShowType.TEXT.getDescp())) {
            result = markdownText(alert.getTitle(), alert.getContent());
        }
        return result;

    }

}