/**
    * Copyright 2005-2014 The Kuali Foundation
    *
    * Licensed under the Educational Community 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.opensource.org/licenses/ecl2.php
    *
   * 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.kuali.rice.testtools.common;
  
  import org.apache.commons.lang3.exception.ExceptionUtils;
  
  import java.io.IOException;
  import java.util.Iterator;
  import java.util.Properties;
  import java.util.regex.Matcher;
  import java.util.regex.Pattern;
  
  /**
   * <p>
   * Link test failures to existing Jiras as a html link in Jenkins.
   * </p><p>
   * The more failures the more useful it is to not have to keep tracking down the same Jiras.
   * </p><p>
   * Set -Djira.aware.regex.failures.location and -Djira.aware.contains.failures.location to define file locations, else
   * @{code JiraAwareRegexFailures.properties} and {@code JiraAwareContainsFailures.properties} will be read as a resource stream.  To
   * override the Jira browse url set -Djira.aware.browse.url
   * </p><p>
   * To make use of JiraAwareFailureUtils implement {@see JiraAwareFailable} and call {@code JiraAwareFailureUtils.fail(contents, message, failable);} instead of
   * asserts or Assert.fail().
   * </p><p>
   * TODO:
   * <ol>
   *   <li>Integration Test integration.  ITs often fail by the 10s tracking down existing Jiras is a huge time sink.</li>
   * </ol>
   * </p>
   * @author Kuali Rice Team (rice.collab@kuali.org)
   */
  public class JiraAwareFailureUtils {
  
      /**
       * <p>
       * Set -Djira.aware.base.url to point your Jira url base (include trailing slash), defaults to
       * https://jira.kuali.org/browse/
       * </p>
       */
      public static final String JIRA_BROWSE_URL_PROPERTY = "jira.aware.browse.url";
  
      private static String JIRA_BROWSE_URL = System.getProperty(JIRA_BROWSE_URL_PROPERTY,"https://jira.kuali.org/browse/");
  
      private static String REGEX_DEFAULT_PROPS_LOCATION = "JiraAwareRegexFailures.properties";
  
      /**
       * <p>
       * Set -Djira.aware.regex.failures.location to point to the the regex failures properties, defaults to
       * JiraAwareRegexFailures.properties
       * </p>
       */
      public static final String REGEX_LOCATION_POPERTY = "jira.aware.regex.failures.location";
  
      private static String REGEX_PROPS_LOCATION = System.getProperty(REGEX_LOCATION_POPERTY, REGEX_DEFAULT_PROPS_LOCATION);
  
      private static String CONTAINS_DEFAULT_PROPS_LOCATION = "JiraAwareContainsFailures.properties";
  
      /**
       * <p>
       * Set -Djira.aware.contains.failures.location to point to the the regex failures properties, defaults to
       * JiraAwareContainsFailures.properties
       * </p>
       */
      public static final String CONTAINS_LOCATION_PROERTY = "jira.aware.contains.failures.location";
  
      private static String CONTAINS_PROPS_LOCATION = System.getProperty(CONTAINS_LOCATION_PROERTY, CONTAINS_DEFAULT_PROPS_LOCATION);
  
      static Properties regexJiraMatches; // for more powerful matching
  
      static Properties jiraMatches; // simple contains matching
  
      static {
          try {
              regexJiraMatches = new PropertiesUtils().loadProperties(REGEX_PROPS_LOCATION, REGEX_DEFAULT_PROPS_LOCATION);
          } catch (IOException e) {
              e.printStackTrace();
          }
  
          try {
              jiraMatches = new PropertiesUtils().loadProperties(CONTAINS_PROPS_LOCATION, CONTAINS_DEFAULT_PROPS_LOCATION);
          } catch (IOException e) {
              e.printStackTrace();
          }
      }
  
     private JiraAwareFailureUtils() {}
 
     /**
      * <p>
      * Calls {@see #failOnMatchedJira(String, JiraAwareFailable)} and calls fail on the {@see JiraAwareFailable#fail} if no matched jira failures.
      * </p>
      *
      * @param message to pass to fail
      * @param failable {@see JiraAwareFailable#fail}
      */
     public static void fail(String message, JiraAwareFailable failable) {
         failOnMatchedJira(message, failable);
         failable.fail(message);
     }
 
     /**
      * <p>
      * Calls {@see #failOnMatchedJira(String, String, JiraAwareFailable)} and calls fail on the {@see JiraAwareFailable#fail} fails if no matched jira failures.
      * </p>
      *
      * @param contents to check for jira matches on
      * @param message to pass to fail, also checked for jira matches
      * @param failable {@see JiraAwareFailable#fail}
      */
     public static void fail(String contents, String message, JiraAwareFailable failable) {
         failOnMatchedJira(contents, message, failable);
         failable.fail(contents + " " + message);
     }
 
     /**
      * <p>
      * Calls {@see #failOnMatchedJira(String, String, JiraAwareFailable)} and calls fail on the {@see JiraAwareFailable#fail} fails if no matched jira failures.
      * </p>
      *
      * @param contents to check for jira matches on
      * @param message to pass to fail, also checked for jira matches
      * @param failable {@see JiraAwareFailable#fail}
      */
     public static void fail(String contents, String message, Throwable throwable, JiraAwareFailable failable) {
         failOnMatchedJira(contents, message, failable);
         if (throwable != null) {
             failOnMatchedJira(ExceptionUtils.getStackTrace(throwable), throwable.getMessage(), failable);
             failable.fail(contents + " " + message + " " + throwable.getMessage() + "\n\t" + ExceptionUtils.getStackTrace(throwable));
         }
         failable.fail(contents + " " + message + " " + contents);
     }
 
     /**
      * <p>
      * Calls {@see #failOnMatchedJira(String, JiraAwareFailable)} with the contents and if no match is detected then the message.
      * </p>
      *
      * @param contents to check for containing of the jiraMatches keys.
      * @param message to check for containing of the jiraMatches keys if contents doesn't
      * @param failable to fail with the jiraMatches value if the contents or message is detected
      */
     public static void failOnMatchedJira(String contents, String message, JiraAwareFailable failable) {
         if (message == null) {
             message = ""; // prevent NPEs
         }
 
         String match = findMatchedJiraContains(message);
         if (match != null && !match.equals("")) {
             failable.fail(match);
         }
 
         match = findMatchedJiraContains(contents);
         if (match != null && !match.equals("")) {
             failable.fail(match);
         }
 
         match = findMatchedJiraRegex(message);
         if (match != null && !match.equals("")) {
             failable.fail(match);
         }
 
         match = findMatchedJiraRegex(contents);
         if (match != null && !match.equals("")) {
             failable.fail(match);
         }
     }
 
     /**
      * <p>
      * If the contents contains the jiraMatches key, calls fail on the {@see JiraAwareFailable#fail} passing in the jiraMatches value for the matched key.
      * </p>
      *
      * @param contents to check for containing of the jiraMatches keys.
      * @param failable to fail with the jiraMatches value if the jiraMatches key is contained in the contents
      */
     public static void failOnMatchedJira(String contents, JiraAwareFailable failable) {
         String match = findMatchedJira(contents);
         if (match != null && !match.equals("")) {
             failable.fail(match);
         }
     }
 
     /**
      * <p>
      * Returns the value from the properties files for the key matching the contents or an empty string if no match is found.
      * </p>
      *
      * @param contents to search for key in from properties file
      * @return value for key which matches contents
      */
     public static String findMatchedJira(String contents) {
         String match = findMatchedJiraContains(contents);
         if (match != null && !"".equals(match)) {
             return match;
         }
 
         return findMatchedJiraRegex(contents);
     }
 
     protected static String findMatchedJiraContains(String contents) {
         if (jiraMatches == null || jiraMatches.keySet() == null) {
             System.out.println("WARNING JiraAwareFailureUtils contains properties empty, findMatchesJira contains not available.");
             return "";
         }
         String key = null;
 
         Iterator iter = jiraMatches.keySet().iterator();
 
         while (iter.hasNext()) {
             key = (String)iter.next();
             if (contents.contains(key)) {
                 return("\n" + JIRA_BROWSE_URL + jiraMatches.get(key) + "\n\n" + contents);
             }
         }
 
         return "";
     }
 
     protected static String findMatchedJiraRegex(String contents) {
         if (regexJiraMatches == null || regexJiraMatches.keySet() == null) {
             System.out.println("WARNING JiraAwareFailureUtils Regex properties empty, findMatchesJiraRegex not available.");
             return "";
         }
         String key = null;
         Pattern pattern = null;
         Matcher matcher = null;
 
         Iterator iter = regexJiraMatches.keySet().iterator();
 
         while (iter.hasNext()) {
             key = (String)iter.next();
             pattern = Pattern.compile(key, Pattern.DOTALL); // match across line terminators
             matcher = pattern.matcher(contents);
 
             if (matcher.find()) {
                 return("\n" + JIRA_BROWSE_URL + regexJiraMatches.get(key) + "\n\n" + contents);
             }
         }
 
         return "";
     }
 
 }