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

import org.json.JSONException;
import org.json.JSONObject;

import java.io.IOException;

import de.thedevstack.android.logcat.Logging;
import de.thedevstack.conversationsplus.enums.FileStatus;
import de.thedevstack.conversationsplus.http.HttpClient;
import de.thedevstack.conversationsplus.utils.MessageUtil;
import de.thedevstack.conversationsplus.xmpp.exceptions.XmppException;
import de.thedevstack.conversationsplus.xmpp.filetransfer.http.delete.DeleteSlotPacketParser;

import eu.siacs.conversations.entities.Account;
import eu.siacs.conversations.xmpp.stanzas.IqPacket;
import eu.siacs.conversations.xmpp.OnIqPacketReceived;

import okhttp3.Call;
import okhttp3.Callback;
import okhttp3.OkHttpClient;
import okhttp3.Request;
import okhttp3.Response;

/**
 *
 */
public class DeleteTokenReceived implements OnIqPacketReceived {
    private static final String HEADER_NAME_DELETE_TOKEN = "X-FILETRANSFER-HTTP-DELETE-TOKEN";
    private final DeleteRemoteFile remoteFile;

    public DeleteTokenReceived(DeleteRemoteFile remoteFile) {
        this.remoteFile = remoteFile;
    }

    @Override
    public void onIqPacketReceived(Account account, IqPacket packet) {
        try {
            String url = this.remoteFile.getPath();
            String deleteToken = DeleteSlotPacketParser.parseDeleteToken(packet);
            Logging.d("filetransfer.http.delete", "Got delete token '" + deleteToken + "' for remote file '" + remoteFile.getPath() + "'");
            OkHttpClient client = HttpClient.getClient(true);
            Request request = new Request.Builder()
                    .url(url)
                    .addHeader(HEADER_NAME_DELETE_TOKEN, deleteToken)
                    .delete()
                    .build();
            client.newCall(request).enqueue(new Callback() {
                @Override
                public void onFailure(Call call, IOException e) {
                    Logging.e("filetransfer.http.delete", "Error while connecting to '" + call.request().url() + "': " + e.getMessage());
                    MessageUtil.setAndSaveFileStatus(remoteFile.getMessage(), FileStatus.DELETE_FAILED);
                }

                @Override
                public void onResponse(Call call, Response response) throws IOException {
                    if (response.isSuccessful()) {
                        MessageUtil.setAndSaveFileStatus(remoteFile.getMessage(), FileStatus.DELETED);
                        Logging.i("filetransfer.http.delete", "Remote file successfully deleted '" + remoteFile.getPath() + "'");
                    } else {
                        String detailedMessage = response.body().string();
                        FileStatus fileStatus = FileStatus.DELETE_FAILED;
                        switch (response.code()) {
                            case 403:
                            case 500:
                                try {
                                    JSONObject jsonObject = new JSONObject(detailedMessage);
                                    detailedMessage = jsonObject.getString("msg");
                                } catch (JSONException e) {
                                    Logging.e("filetransfer.http.delete", "Failed to get error message from expected json response: " + detailedMessage);
                                }
                                break;
                            case 404:
                                fileStatus = FileStatus.DELETED;
                                Logging.i("filetransfer.http.delete", "Failed to delete file - it was already deleted.");
                                break;
                        }
                        Logging.e("filetransfer.http.delete", "Could not delete remote file '" + remoteFile.getPath() + "'. Response Code: " + response.code() + ", details: " + detailedMessage);
                        MessageUtil.setAndSaveFileStatus(remoteFile.getMessage(), fileStatus);
                    }
                }
            });

        } catch (XmppException e) {
            Logging.e("filetransfer.http.delete", "Error while trying to get the delete token: " + e.getMessage());
            MessageUtil.setAndSaveFileStatus(remoteFile.getMessage(), FileStatus.DELETE_FAILED);
        }
    }
}