TelegramBots/telegrambots-meta/src/main/java/org/telegram/telegrambots/api/objects/Chat.java

package org.telegram.telegrambots.api.objects;

import com.fasterxml.jackson.annotation.JsonProperty;

import org.telegram.telegrambots.api.interfaces.BotApiObject;

/**
 * @author Ruben Bermudez
 * @version 1.0
 * This object represents a Telegram chat with an user or a group
 */
public class Chat implements BotApiObject {

    private static final String ID_FIELD = "id";
    private static final String TYPE_FIELD = "type";
    private static final String TITLE_FIELD = "title";
    private static final String USERNAME_FIELD = "username";
    private static final String FIRSTNAME_FIELD = "first_name";
    private static final String LASTNAME_FIELD = "last_name";
    private static final String ALL_MEMBERS_ARE_ADMINISTRATORS_FIELD = "all_members_are_administrators";
    private static final String PHOTO_FIELD = "photo";
    private static final String DESCRIPTION_FIELD = "description";
    private static final String INVITELINK_FIELD = "invite_link";
    private static final String PINNEDMESSAGE_FIELD = "pinned_message";

    private static final String USERCHATTYPE = "private";
    private static final String GROUPCHATTYPE = "group";
    private static final String CHANNELCHATTYPE = "channel";
    private static final String SUPERGROUPCHATTYPE  = "supergroup";

    /**
     * Unique identifier for this chat.
     * This number may be greater than 32 bits and some programming languages may
     * have difficulty/silent defects in interpreting it. But it smaller than 52 bits,
     * so a signed 64 bit integer or double-precision float type are safe for storing this identifier.
     */
    @JsonProperty(ID_FIELD)
    private Long id; ///< Unique identifier for this chat, not exciding 1e13 by absolute value
    @JsonProperty(TYPE_FIELD)
    private String type; ///< Type of the chat, one of “private”, “group” or “channel”
    @JsonProperty(TITLE_FIELD)
    private String title; ///< Optional. Title of the chat, only for channels and group chat
    @JsonProperty(FIRSTNAME_FIELD)
    private String firstName; ///< Optional. Username of the chat, only for private chats and channels if available
    @JsonProperty(LASTNAME_FIELD)
    private String lastName; ///< Optional. Interlocutor's first name for private chats
    @JsonProperty(USERNAME_FIELD)
    private String userName; ///< Optional. Interlocutor's last name for private chats
    /**
     * Optional. True if a group has ‘All Members Are Admins’ enabled.
     */
    @JsonProperty(ALL_MEMBERS_ARE_ADMINISTRATORS_FIELD)
    private Boolean allMembersAreAdministrators;
    @JsonProperty(PHOTO_FIELD)
    private ChatPhoto photo; ///< Optional. Chat photo. Returned only in getChat.
    @JsonProperty(DESCRIPTION_FIELD)
    private String description; ///< Optional. Description, for supergroups and channel chats. Returned only in getChat.
    @JsonProperty(INVITELINK_FIELD)
    private String inviteLink; ///< Optional. Chat invite link, for supergroups and channel chats. Returned only in getChat.
    @JsonProperty(PINNEDMESSAGE_FIELD)
    private Message pinnedMessage; ///< Optional. Pinned message, for supergroups. Returned only in getChat.

    public Chat() {
        super();
    }

    public Long getId() {
        return id;
    }

    public Boolean isGroupChat() {
        return GROUPCHATTYPE.equals(type);
    }

    public Boolean isChannelChat() {
        return CHANNELCHATTYPE.equals(type);
    }

    public Boolean isUserChat() {
        return USERCHATTYPE.equals(type);
    }

    public Boolean isSuperGroupChat() {
        return SUPERGROUPCHATTYPE.equals(type);
    }

    public String getTitle() {
        return title;
    }

    public String getFirstName() {
        return firstName;
    }

    public String getLastName() {
        return lastName;
    }

    public String getUserName() {
        return userName;
    }

    public Boolean getAllMembersAreAdministrators() {
        return allMembersAreAdministrators;
    }

    public ChatPhoto getPhoto() {
        return photo;
    }

    public String getDescription() {
        return description;
    }

    public String getInviteLink() {
        return inviteLink;
    }

    public Message getPinnedMessage() {
        return pinnedMessage;
    }

    @Override
    public String toString() {
        return "Chat{" +
                "id=" + id +
                ", type='" + type + '\'' +
                ", title='" + title + '\'' +
                ", firstName='" + firstName + '\'' +
                ", lastName='" + lastName + '\'' +
                ", userName='" + userName + '\'' +
                ", allMembersAreAdministrators=" + allMembersAreAdministrators +
                ", photo=" + photo +
                ", description='" + description + '\'' +
                ", inviteLink='" + inviteLink + '\'' +
                ", pinnedMessage=" + pinnedMessage +
                '}';
    }
}