/*
    * Copyright (C) 2010 Atlassian
    *
    * Licensed 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 com.atlassian.jira.rest.client.domain;
  
  import com.atlassian.jira.rest.client.ExpandableResource;
  import com.google.common.base.Objects;
  import org.joda.time.DateTime;
  
  import javax.annotation.Nullable;
  import javax.ws.rs.core.UriBuilder;
  import java.net.URI;
  import java.util.Collection;
  import java.util.Set;
  
  /**
   * Single JIRA issue
   *
   * @since v0.1
   */
  public class Issue extends BasicIssue implements ExpandableResource {
  
      public Issue(String summary, URI self, String key, BasicProject project, BasicIssueType issueType, BasicStatus status,
  			String description, @Nullable BasicPriority priority, @Nullable BasicResolution resolution, Collection<Attachment> attachments,
  			@Nullable BasicUser reporter, @Nullable BasicUser assignee, DateTime creationDate, DateTime updateDate,
  			Collection<Version> affectedVersions, Collection<Version> fixVersions, Collection<BasicComponent> components,
  			@Nullable TimeTracking timeTracking, Collection<Field> fields, Collection<Comment> comments,
  			@Nullable URI transitionsUri,
  			@Nullable Collection<IssueLink> issueLinks,
  			BasicVotes votes, Collection<Worklog> worklogs, BasicWatchers watchers, Iterable<String> expandos,
  			@Nullable Collection<Subtask> subtasks, @Nullable Collection<ChangelogGroup> changelog, Set<String> labels) {
  		super(self, key);
          this.summary = summary;
  		this.project = project;
  		this.status = status;
  		this.description = description;
  		this.resolution = resolution;
  		this.expandos = expandos;
          this.comments = comments;
          this.attachments = attachments;
  		this.fields = fields;
  		this.issueType = issueType;
  		this.reporter = reporter;
  		this.assignee = assignee;
  		this.creationDate = creationDate;
  		this.updateDate = updateDate;
  		this.transitionsUri = transitionsUri;
  		this.issueLinks = issueLinks;
  		this.votes = votes;
  		this.worklogs = worklogs;
  		this.watchers = watchers;
  		this.fixVersions = fixVersions;
  		this.affectedVersions = affectedVersions;
  		this.components = components;
  		this.priority = priority;
  		this.timeTracking = timeTracking;
  		this.subtasks = subtasks;
  		this.changelog = changelog;
  		this.labels = labels;
  	}
  
  	private final BasicStatus status;
  	private BasicIssueType issueType;
  	private BasicProject project;
  	private final URI transitionsUri;
  	private final Iterable<String> expandos;
  	private final Collection<BasicComponent> components;
      private final String summary;
  	@Nullable
  	private final String description;
  	@Nullable
  	private BasicUser reporter;
  	private BasicUser assignee;
  	@Nullable
  	private final BasicResolution resolution;
  	private Collection<Field> fields;
  	private DateTime creationDate;
  	private DateTime updateDate;
  	private final BasicPriority priority;
  	private final BasicVotes votes;
  	@Nullable
  	private final Collection<Version> fixVersions;
  	@Nullable
  	private final Collection<Version> affectedVersions;
  
  	private final Collection<Comment> comments;
 
 	@Nullable
 	private final Collection<IssueLink> issueLinks;
 
 	private final Collection<Attachment> attachments;
 
 	private final Collection<Worklog> worklogs;
 	private final BasicWatchers watchers;
 
 	@Nullable
 	private final TimeTracking timeTracking;
 	@Nullable
 	private final Collection<Subtask> subtasks;
 	@Nullable
 	private final Collection<ChangelogGroup> changelog;
 	private final Set<String> labels;
 
 	public BasicStatus getStatus() {
 		return status;
 	}
 
 	/**
 	 * @return reporter of this issue or <code>null</code> if this issue has no reporter
 	 */
 	@Nullable
 	public BasicUser getReporter() {
 		return reporter;
 	}
 
 	/**
 	 * @return assignee of this issue or <code>null</code> if this issue is unassigned.
 	 */
 	@Nullable
 	public BasicUser getAssignee() {
 		return assignee;
 	}
 
 
 
 	public String getSummary() {
 		return summary;
 	}
 
 	/**
 	 * @return priority of this issue
 	 */
 	@Nullable
 	public BasicPriority getPriority() {
 		return priority;
 	}
 
 	/**
 	 *
 	 * @return issue links for this issue (possibly nothing) or <code>null</code> when issue links are deactivated for this JIRA instance
 	 */
 	@Nullable
 	public Iterable<IssueLink> getIssueLinks() {
 		return issueLinks;
 	}
 
 	@Nullable
 	public Iterable<Subtask> getSubtasks() {
 		return subtasks;
 	}
 
 	/**
 	 * @return fields inaccessible by concrete getter methods (e.g. all custom fields)
 	 */
 	public Iterable<Field> getFields() {
 		return fields;
 	}
 
 	/**
 	 *
 	 * @param id identifier of the field (inaccessible by concrete getter method)
 	 * @return field with given id, or <code>null</code> when no field with given id exists for this issue
 	 */
 	@Nullable
 	public Field getField(String id) {
 		for (Field field : fields) {
 			if (field.getId().equals(id)) {
 				return field;
 			}
 		}
 		return null;
 	}
 
 	/**
 	 * This method returns the first field with specified name.
 	 * Names of fields in JIRA do not need to be unique. Therefore this method does not guarantee that you will get what you really want.
 	 * It's added just for convenience. For identify fields you should use id rather than name.
 	 *
 	 * @param name name of the field.
 	 * @return the first field matching selected name or <code>null</code> when no field with given name exists for this issue
 	 */
 	@Nullable
 	public Field getFieldByName(String name) {
 		for (Field field : fields) {
 			if (field.getName().equals(name)) {
 				return field;
 			}
 		}
 		return null;
 	}
 
 	@Override
 	public Iterable<String> getExpandos() {
 		return expandos;
 	}
 
 	/**
 	 * @return issue type
 	 */
 	public BasicIssueType getIssueType() {
 		return issueType;
 	}
 
 	/**
 	 * @return attachments of this issue
 	 */
 	public Iterable<Attachment> getAttachments() {
         return attachments;
     }
 
 	public URI getAttachmentsUri() {
 		return UriBuilder.fromUri(getSelf()).path("attachments").build();
 	}
 
 	/**
 	 * @return comments for this issue
 	 */
     public Iterable<Comment> getComments() {
         return comments;
     }
 
 	/**
 	 * @return project this issue belongs to
 	 */
 	public BasicProject getProject() {
 		return project;
 	}
 
 	/**
 	 * @return <code>null</code when voting is disabled in JIRA
 	 */
 	@Nullable
 	public BasicVotes getVotes() {
 		return votes;
 	}
 
 	public Iterable<Worklog> getWorklogs() {
 		return worklogs;
 	}
 
 	/**
 	 * @return <code>null</code when watching is disabled in JIRA 
 	 */
 	@Nullable
 	public BasicWatchers getWatchers() {
 		return watchers;
 	}
 
 	@Nullable
 	public Iterable<Version> getFixVersions() {
 		return fixVersions;
 	}
 
 	@Nullable
     public URI getTransitionsUri() {
         return transitionsUri;
     }
 
 	@Nullable
     public Iterable<Version> getAffectedVersions() {
 		return affectedVersions;
 	}
 
 	public Iterable<BasicComponent> getComponents() {
 		return components;
 	}
 
 	public Set<String> getLabels() {
 		return labels;
 	}
 
 	/**
 	 * Returns changelog available for issues retrieved with CHANGELOG expanded.
 	 *
 	 * @return issue changelog or <code>null</code> if CHANGELOG has not been expanded or REST API on the server side does not serve
 	 * this information (pre-5.0)
 	 * @see com.atlassian.jira.rest.client.IssueRestClient#getIssue(String, Iterable, com.atlassian.jira.rest.client.ProgressMonitor)
 	 * @since client 0.6, server 5.0
 	 */
 	@Nullable
 	public Iterable<ChangelogGroup> getChangelog() {
 		return changelog;
 	}
 
 	public URI getVotesUri() {
 		return UriBuilder.fromUri(getSelf()).path("votes").build();
 	}
 
 
 
 	@Nullable
 	public BasicResolution getResolution() {
 		return resolution;
 	}
 
 	public DateTime getCreationDate() {
 		return creationDate;
 	}
 
 	public DateTime getUpdateDate() {
 		return updateDate;
 	}
 
 	@Nullable
 	public TimeTracking getTimeTracking() {
 		return timeTracking;
 	}
 
 	@Nullable
 	public String getDescription() {
 		return description;
 	}
 
 	@Override
 	public String toString() {
 		return Objects.toStringHelper(this).addValue(super.toString()).
 				add("project", project).
 				add("status", status).
 				add("description", description).
 				add("expandos", expandos).
 				add("resolution", resolution).
 				add("reporter", reporter).
 				add("assignee", assignee).addValue("\n").
 				add("fields", fields).addValue("\n").
 				add("affectedVersions", affectedVersions).addValue("\n").
 				add("fixVersions", fixVersions).addValue("\n").
 				add("components", components).addValue("\n").
 				add("issueType", issueType).
 				add("creationDate", creationDate).
 				add("updateDate", updateDate).addValue("\n").
 				add("attachments", attachments).addValue("\n").
 				add("comments", comments).addValue("\n").
 				add("transitionsUri", transitionsUri).
 				add("issueLinks", issueLinks).addValue("\n").
 				add("votes", votes).addValue("\n").
 				add("worklogs", worklogs).addValue("\n").
 				add("watchers", watchers).
 				add("timeTracking", timeTracking).
 				add("changelog", changelog).
 				add("labels", labels).
 				toString();
 	}
 }