package com.zd.alg.speaker.config;

import com.zd.alg.speaker.Interceptor.NetInterceptor;
import okhttp3.ConnectionPool;
import okhttp3.OkHttpClient;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.cloud.context.config.annotation.RefreshScope;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

import javax.net.ssl.SSLContext;
import javax.net.ssl.SSLSocketFactory;
import javax.net.ssl.TrustManager;
import javax.net.ssl.X509TrustManager;
import java.security.KeyManagementException;
import java.security.NoSuchAlgorithmException;
import java.security.SecureRandom;
import java.security.cert.X509Certificate;
import java.util.concurrent.TimeUnit;

@Configuration
@RefreshScope
public class OkHttpConfiguration {
    @Value("${ok-http.connect-timeout-ms}")
    private Integer connectTimeout;

    @Value("${ok-http.read-timeout-ms}")
    private Integer readTimeout;

    @Value("${ok-http.write-timeout-ms}")
    private Integer writeTimeout;

    @Value("${ok-http.max-idle-connections}")
    private Integer maxIdleConnections;

    @Value("${ok-http.keep-alive-duration-sec}")
    private Long keepAliveDuration;

    @Bean
    public OkHttpClient okHttpClient() {
        return new OkHttpClient.Builder()
                .addNetworkInterceptor(new NetInterceptor())
                .sslSocketFactory(sslSocketFactory(), x509TrustManager())
                // 是否开启缓存
                .retryOnConnectionFailure(false)
                .connectionPool(pool())
                .connectTimeout(connectTimeout, TimeUnit.SECONDS)
                .readTimeout(readTimeout, TimeUnit.SECONDS)
                .writeTimeout(writeTimeout, TimeUnit.SECONDS)
                .hostnameVerifier((hostname, session) -> true)
                .build();
    }

    @Bean
    public X509TrustManager x509TrustManager() {
        return new X509TrustManager() {
            @Override
            public void checkClientTrusted(X509Certificate[] chain, String authType) {
            }

            @Override
            public void checkServerTrusted(X509Certificate[] chain, String authType) {
            }

            @Override
            public X509Certificate[] getAcceptedIssuers() {
                return new X509Certificate[0];
            }
        };
    }

    @Bean
    public SSLSocketFactory sslSocketFactory() {
        try {
            // 信任任何链接
            SSLContext sslContext = SSLContext.getInstance("TLS");
            sslContext.init(null, new TrustManager[]{x509TrustManager()}, new SecureRandom());
            return sslContext.getSocketFactory();
        } catch (NoSuchAlgorithmException | KeyManagementException e) {
            e.printStackTrace();
        }
        return null;
    }

    @Bean
    public ConnectionPool pool() {
        return new ConnectionPool(maxIdleConnections, keepAliveDuration, TimeUnit.SECONDS);
    }
}
