package com.github.hunter0x7c7.sync.model.data.source.http;


import com.github.hunter0x7c7.sync.model.bean.PhotoBean;
import com.github.hunter0x7c7.sync.model.data.result.ResultEntity;
import com.github.hunter0x7c7.sync.model.data.source.HttpDataSource;
import com.github.hunter0x7c7.sync.model.server.ServiceApi;
import io.reactivex.Observable;

import java.util.concurrent.TimeUnit;

/**
 * ================================================================
 * <p>
 * 版    权： Hunter(c)2020
 * <p>
 * 作    者： Hunter
 * <p>
 * 版    本： V1.0
 * <p>
 * 创建日期： 2020/7/30 16:19
 * <p>
 * 描    述：网络数据源
 * <p>
 * <p>
 * 修订历史：
 * <p>
 * ================================================================
 */
public class HttpDataSourceImpl implements HttpDataSource {

    private ServiceApi apiService;
    private volatile static HttpDataSourceImpl sInstance = null;

    private HttpDataSourceImpl(ServiceApi apiService) {
        this.apiService = apiService;
    }

    public static HttpDataSourceImpl getInstance(ServiceApi apiService) {
        if (sInstance == null) {
            synchronized (HttpDataSourceImpl.class) {
                if (sInstance == null) {
                    sInstance = new HttpDataSourceImpl(apiService);
                }
            }
        }
        return sInstance;
    }

    public static void destroyInstance() {
        sInstance = null;
    }

    public void setServiceApi(ServiceApi apiService) {
        this.apiService = apiService;
    }

    @Override
    public Observable<ResultEntity<PhotoBean>> getImageList(String mode, int index, int size, String key) {
        return apiService.getImageList(mode, (index + 1) * size, size, key)
                .delay(300, TimeUnit.MILLISECONDS); //延迟
    }

}