package de.thedevstack.conversationsplus.services.filetransfer.http.download;

import de.thedevstack.android.logcat.Logging;
import de.thedevstack.conversationsplus.ConversationsPlusApplication;
import de.thedevstack.conversationsplus.entities.FileParams;
import de.thedevstack.conversationsplus.entities.Message;
import de.thedevstack.conversationsplus.enums.FileStatus;
import de.thedevstack.conversationsplus.http.HttpClient;
import de.thedevstack.conversationsplus.services.filetransfer.AbstractFileTransferService;
import de.thedevstack.conversationsplus.utils.MessageUtil;
import de.thedevstack.conversationsplus.utils.XmppConnectionServiceAccessor;
import okhttp3.Call;

/**
 *
 */
public class HttpDownloadFileTransferService extends AbstractFileTransferService {
    /**
     * Transfers a file for the corresponding message.
     *
     * @param message the message containing the file to transfer
     * @return <code>true</code> if the file transfer was successful, <code>false</code> otherwise
     */
    @Override
    public boolean transferFile(Message message) {
        return this.transferFile(message, false);
    }

    /**
     * Transfers a file for the corresponding message.
     *
     * @param message the message containing the file to transfer
     * @param delay   whether the message is delayed or not
     * @return <code>true</code> if the file transfer was successful, <code>false</code> otherwise
     */
    @Override
    public boolean transferFile(Message message, boolean delay) {
        Logging.d("http-download", "Get file from remote host");
        final HttpDownloadFileTransferEntity entity = new HttpDownloadFileTransferEntity(message);
        if (message.getFileParams().getFileStatus() == FileStatus.NEEDS_DOWNLOAD
                && ConversationsPlusApplication.hasStoragePermission()
                && XmppConnectionServiceAccessor.xmppConnectionService.isDownloadAllowedInConnection()) {
            FileParams fileParams = message.getFileParams();
            MessageUtil.setAndSaveFileStatus(message, FileStatus.DOWNLOADING);
            entity.wakeLock = ConversationsPlusApplication.createPartialWakeLock("http_download_" + entity.getMessage().getUuid());
            entity.wakeLock.acquire();
            Call call = HttpClient.openCancelableAndProgressListenedCall(fileParams.getUrl(), entity, false);
            call.enqueue(new HttpFileDownloadCallback(entity));
        }

        return true;
    }

    /**
     * Checks whether a message can be sent using this service or not.
     *
     * @param message the message to be checked
     * @return <code>true</code> if the message can be processed, <code>false</code> otherwise
     */
    @Override
    public boolean accept(Message message) {
        return MessageUtil.needsDownload(message)
                && message.hasFileAttached() && (null == message.getFileParams() || message.getFileParams().isRemoteAvailable());
    }
}