package com.myoa.engineering.crawl.ppomppu.processor.infrastructure.client;

import com.myoa.engineering.crawl.ppomppu.support.webclient.factory.WebClientFilterFactory;
import com.myoa.engineering.crawl.ppomppu.support.webclient.factory.WebFluxExchangeStragiesFactory;
import com.myoa.engineering.crawl.ppomppu.support.dto.code.PpomppuBoardName;
import lombok.extern.slf4j.Slf4j;

import org.springframework.core.ParameterizedTypeReference;
import org.springframework.stereotype.Component;
import org.springframework.web.reactive.function.client.WebClient;
import org.springframework.web.reactive.function.client.WebClientRequestException;
import reactor.core.publisher.Mono;
import reactor.core.scheduler.Schedulers;

/**
 * PpomppuBoardFeedRetriever
 *
 * @author Shin Woo-jin (woozu.shin@kakaoent.com)
 * @since 2021-09-08
 */
@Slf4j
@Component
public class PpomppuBoardFeedRetriever {

    private final WebClient webClient;

    public PpomppuBoardFeedRetriever(WebClient.Builder webClientBuilder) {
        this.webClient = webClientBuilder.baseUrl(PpomppuBoardName.PPOMPPU_URL)
                                         .exchangeStrategies(WebFluxExchangeStragiesFactory.ofTextHtml())
                                         .filter(WebClientFilterFactory.logRequest())
                                         .filter(WebClientFilterFactory.logResponse())
                                         .build();
    }

    public Mono<String> getHtml(String uri) {
        return webClient.get()
                        .uri(uri)
                        .exchangeToMono(e -> e.bodyToMono(String.class))
                        .publishOn(Schedulers.boundedElastic())
                        .onErrorResume(WebClientRequestException.class, t -> {
                            log.info("Exception occured, ignoring. : {}", t.getClass().getSimpleName());
                            return Mono.empty();
                        })
                        .doOnNext(e -> log.info("[getHtml] {}", e));
    }

}