package com.alibaba.serverless.helloworld;

import java.io.UnsupportedEncodingException;
import java.util.UUID;

import com.aliyun.fc.runtime.Context;
import com.aliyun.fc.runtime.FunctionComputeLogger;
import com.aliyun.fc.runtime.FunctionInitializer;
import com.aliyun.fc.runtime.PojoRequestHandler;
import com.aliyuncs.utils.Base64Helper;

/**
 * 对应到部署路由中的函数名：
 * com.alibaba.serverless.helloworld.helloworld::handleRequest
 */
public class helloworld implements FunctionInitializer, PojoRequestHandler<ApiGwRequest, ApiGwResponse> {

    /*
     * 云函数运行时初始化时的回调函数。
     */
    @Override
    public void initialize(Context context) {
        FunctionComputeLogger logger = context.getLogger();
        logger.debug(String.format("RequestID is %s %n", context.getRequestId()));
    }

    /*
     * Web云函数处理入口，每次调用时的入口。
   * @param request 每次请求的所有信息都在request中
     */
    @Override
    public ApiGwResponse handleRequest(ApiGwRequest request, Context context) {
    FunctionComputeLogger logger = context.getLogger();
    
    // 读取请求对象
    String requestPath = request.getPath();
    String bodyContext = "";
    if (requestPath.startsWith("")) {
      bodyContext = "你好，世界！";
    }
    
    // 构建返回对象
        ApiGwResponse response = new ApiGwResponse();
        response.getHeaders().put("responseHeader", "testValue");
        response.getHeaders().put("Content-type", "text/html; charset=utf-8");
        boolean isBase = false;
        if ( isBase ) {
            try {
                bodyContext = Base64Helper.encode(bodyContext, "UTF-8");
            } catch (UnsupportedEncodingException e) {
                isBase = false;
            }
        }
        response.setBody( bodyContext );
        response.setBase64Encoded( isBase );
        response.setStatusCode(200);

        logger.info("Response返回:" + bodyContext );
        return response;
    }
}