/*
 * Copyright (C) 2008-2023, Juick
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as
 * published by the Free Software Foundation, either version 3 of the
 * License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

package com.juick.config;

import com.juick.service.activities.DeleteUserEvent;
import okhttp3.Interceptor;
import okhttp3.Response;
import org.jetbrains.annotations.NotNull;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.context.ApplicationEventPublisher;
import org.springframework.http.HttpStatus;

import java.io.IOException;

public class ActivityPubClientErrorHandler implements Interceptor {
    private static final Logger logger = LoggerFactory.getLogger("ActivityPub");
    private final ApplicationEventPublisher applicationEventPublisher;

    public ActivityPubClientErrorHandler(ApplicationEventPublisher applicationEventPublisher) {
        this.applicationEventPublisher = applicationEventPublisher;
    }

    @NotNull
    @Override
    public Response intercept(@NotNull Interceptor.Chain chain) throws IOException {
        var request = chain.request();
        var response = chain.proceed(request);
        var url = request.url();
        if (!response.isSuccessful()) {
            var code = response.code();
            var body = response.body() != null ? response.body().string() : "";
            if (response.code() == HttpStatus.GONE.value()) {
                logger.debug("Server report {} is gone, deleting", url);
                applicationEventPublisher.publishEvent(new DeleteUserEvent(this, url.toString()));
            } else if (response.code() == HttpStatus.NOT_FOUND.value()) {
                logger.debug("HTTP ERROR {} on {} : {}", code, url, body);
            } else {
                logger.warn("HTTP ERROR {} on {} : {}", code, url, body);
            }
        }
        return response;
    }
}