/*
 * Copyright 2016 LY Corporation
 *
 * LY Corporation licenses this file to you under the Apache License,
 * version 2.0 (the "License"); you may not use this file except in compliance
 * with the License. You may obtain a copy of the License at:
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations
 * under the License.
 */
package com.linecorp.sample.login.infra.http;

import java.io.IOException;
import java.util.function.Function;

import okhttp3.OkHttpClient;
import okhttp3.logging.HttpLoggingInterceptor;
import retrofit2.Call;
import retrofit2.Retrofit;
import retrofit2.converter.gson.GsonConverterFactory;

/**
 * <p>HTTP request execution<p>
 */
public final class Client {

    /**
     * <p>execute HTTP requests</p>
     */
    public static <T, R> R getClient(
            final String url,
            final Class<T> service,
            final Function<T, Call<R>> function){

        HttpLoggingInterceptor interceptor = new HttpLoggingInterceptor();
        interceptor.setLevel(HttpLoggingInterceptor.Level.BODY);
        OkHttpClient client = new OkHttpClient.Builder().addInterceptor(interceptor).build();

        Retrofit retrofit = new Retrofit.Builder()
            .baseUrl(url)
            .client(client)
            .addConverterFactory(GsonConverterFactory.create())
            .build();
        T t = retrofit.create(service);
        Call<R> call = function.apply(t);
        try {
            return call.execute().body();
        } catch (IOException e) {
            throw new RuntimeException(e);
        }
    }
}
