package org.wikipedia.readinglist;
import android.support.annotation.NonNull;
import android.support.annotation.VisibleForTesting;
import android.text.TextUtils;
import org.wikipedia.Constants;
import org.wikipedia.dataclient.WikiSite;
import org.wikipedia.dataclient.mwapi.MwException;
import org.wikipedia.dataclient.mwapi.MwQueryPage;
import org.wikipedia.dataclient.mwapi.MwQueryResponse;
import org.wikipedia.dataclient.retrofit.MwCachedService;
import org.wikipedia.dataclient.retrofit.RetrofitException;
import org.wikipedia.page.PageTitle;
import java.io.IOException;
import java.util.List;
import retrofit2.Call;
import retrofit2.Response;
import retrofit2.http.GET;
import retrofit2.http.Query;
public class ReadingListPageInfoClient {
@NonNull private MwCachedService<Service> cachedService = new MwCachedService<>(Service.class);
public interface Callback {
void success(@NonNull Call<MwQueryResponse<MwQueryResponse.Pages>> call,
@NonNull List<MwQueryPage> results);
void failure(@NonNull Call<MwQueryResponse<MwQueryResponse.Pages>> call,
@NonNull Throwable caught);
}
public Call<MwQueryResponse<MwQueryResponse.Pages>> request(@NonNull WikiSite wiki,
@NonNull List<PageTitle> titles,
@NonNull Callback cb) {
return request(cachedService.service(wiki), titles, cb);
}
@VisibleForTesting
public Call<MwQueryResponse<MwQueryResponse.Pages>> request(@NonNull Service service,
@NonNull List<PageTitle> titles,
@NonNull final Callback cb) {
Call<MwQueryResponse<MwQueryResponse.Pages>> call = service.request(TextUtils.join("|", titles), titles.size());
call.enqueue(new retrofit2.Callback<MwQueryResponse<MwQueryResponse.Pages>>() {
@Override public void onResponse(Call<MwQueryResponse<MwQueryResponse.Pages>> call,
Response<MwQueryResponse<MwQueryResponse.Pages>> response) {
if (response.isSuccessful()) {
if (response.body().success()) {
// noinspection ConstantConditions
cb.success(call, response.body().query().pages());
} else if (response.body().hasError()) {
// noinspection ConstantConditions
cb.failure(call, new MwException(response.body().getError()));
} else {
cb.failure(call, new IOException("An unknown error occurred."));
}
} else {
cb.failure(call, RetrofitException.httpError(response));
}
}
@Override public void onFailure(Call<MwQueryResponse<MwQueryResponse.Pages>> call, Throwable t) {
cb.failure(call, t);
}
});
return call;
}
@VisibleForTesting interface Service {
@GET("w/api.php?action=query&format=json&formatversion=2&prop=pageimages|pageterms"
+ "&piprop=thumbnail&pilicense=any&continue=&wbptterms=description&pithumbsize="
+ Constants.PREFERRED_THUMB_SIZE)
Call<MwQueryResponse<MwQueryResponse.Pages>> request(@NonNull @Query("titles") String titles,
@Query("pilimit") int piLimit);
}
}