Mercury-IM/persistence-room/src/main/java/org/mercury_im/messenger/persistence/room/dao/ChatDao.java

package org.mercury_im.messenger.persistence.room.dao;

import androidx.room.Dao;
import androidx.room.Query;
import androidx.room.TypeConverters;

import org.jxmpp.jid.EntityBareJid;
import org.mercury_im.messenger.persistence.room.model.RoomChatModel;
import org.mercury_im.messenger.persistence.pojo.Chat;
import org.mercury_im.messenger.persistence.room.type_converter.EntityBareJidConverter;

import java.util.List;

import io.reactivex.Maybe;
import io.reactivex.Observable;

@Dao
@TypeConverters(EntityBareJidConverter.class)
public interface ChatDao extends BaseDao<RoomChatModel> {

    @Query("SELECT * FROM chats")
    Observable<List<RoomChatModel>> getAllChats();

    @Query("SELECT chats.* FROM chats JOIN entities WHERE fk_account_id = :accountId")
    Observable<List<RoomChatModel>> getAllChatsOfAccount(long accountId);

    @Query("SELECT * FROM chats WHERE fk_entity_id = :entityId")
    Maybe<RoomChatModel> maybeGetChatWithEntity(long entityId);

    @Query("SELECT * FROM chats WHERE fk_entity_id = :entityId")
    Observable<RoomChatModel> getChatWithEntity(long entityId);

    @Query("SELECT chats.* FROM chats JOIN entities WHERE fk_account_id = :accountId AND jid = :jid")
    Maybe<RoomChatModel> maybeGetChatWithJid(long accountId, EntityBareJid jid);

    @Query("SELECT chats.* FROM chats JOIN entities WHERE fk_account_id = :accountId AND jid = :jid")
    Observable<RoomChatModel> getChatWithJid(long accountId, EntityBareJid jid);

    @Query("SELECT chats.* FROM chats JOIN contacts WHERE contacts.pk_contact_id = :contactId")
    Maybe<RoomChatModel> maybeGetChatWithContact(long contactId);

    @Query("SELECT chats.* FROM chats JOIN contacts WHERE contacts.pk_contact_id = :contactId")
    Observable<RoomChatModel> getChatWithContact(long contactId);

    @Query("SELECT chats.pk_chat_id as chatId, " +
            "chats.fk_entity_id as entityId, " +
            "contacts.rostername as contactName, " +
            "entities.fk_account_id as accountId, " +
            "jid, active " +
            "from chats " +
            "LEFT JOIN entities " +
            "ON chats.fk_entity_id = entities.pk_entity_id " +
            "LEFT JOIN contacts " +
            "ON entities.pk_entity_id = contacts.fk_entity_id")
    Observable<List<Chat>> getChatPojos();
}