/*
 * Michelin North America Order-to-Cash APIs
 * These APIs will help you to do business transactions with Michelin.  <br><br><b>Authentication details:</b><br> <br><u>Option A:</u> OAuth2 Client Credentials (recommended) <br><u>Option B:</u> API Key + Basic Authentication (not recommended) <br><br>To request your access, please contact your representative. <br><br>Our services are based on the EDIWHEEL standards. <br>You can find more information on the <a href=\"https://www.ediwheel.com/\" target=\"_blank\">EDIWHEEL website</a>. 
 *
 * The version of the OpenAPI document: 1.0.1
 * 
 *
 * NOTE: This class is auto generated by OpenAPI Generator (https://openapi-generator.tech).
 * https://openapi-generator.tech
 * Do not edit the class manually.
 */


package com.michelin.adk.amn;

import okhttp3.MediaType;
import okhttp3.RequestBody;

import java.io.IOException;

import okio.Buffer;
import okio.BufferedSink;
import okio.ForwardingSink;
import okio.Okio;
import okio.Sink;

public class ProgressRequestBody extends RequestBody {

    private final RequestBody requestBody;

    private final ApiCallback callback;

    public ProgressRequestBody(RequestBody requestBody, ApiCallback callback) {
        this.requestBody = requestBody;
        this.callback = callback;
    }

    @Override
    public MediaType contentType() {
        return requestBody.contentType();
    }

    @Override
    public long contentLength() throws IOException {
        return requestBody.contentLength();
    }

    @Override
    public void writeTo(BufferedSink sink) throws IOException {
        BufferedSink bufferedSink = Okio.buffer(sink(sink));
        requestBody.writeTo(bufferedSink);
        bufferedSink.flush();
    }

    private Sink sink(Sink sink) {
        return new ForwardingSink(sink) {

            long bytesWritten = 0L;
            long contentLength = 0L;

            @Override
            public void write(Buffer source, long byteCount) throws IOException {
                super.write(source, byteCount);
                if (contentLength == 0) {
                    contentLength = contentLength();
                }

                bytesWritten += byteCount;
                callback.onUploadProgress(bytesWritten, contentLength, bytesWritten == contentLength);
            }
        };
    }
}
