var counter = require('component-counter.js');

var requireJARs = () => {
    $ONCE('component-cos-requireJARS').run(() => {
        requireJAR('cos_api-5.2.2.jar');
        requireJAR('httpcore-4.4.6.jar');
        requireJAR('commons-codec-1.10.jar');
        requireJAR('commons-logging-1.2.jar');
        requireJAR('httpclient-4.5.3.jar');
        requireJAR('httpmime-4.5.2.jar');
        requireJAR('slf4j-api-1.7.21.jar');
        requireJAR('log4j-1.2.17.jar');
        requireJAR('slf4j-log4j12-1.7.21.jar');
        requireJAR('joda-time-2.9.6.jar');
        requireJAR('jackson-core-2.8.5.jar');
        requireJAR('jackson-annotations-2.8.0.jar');
        requireJAR('jackson-databind-2.8.5.jar');
    });
};

var createCounterIS = (file) => {
    var CounterInputStream = Packages.me.hatter.tools.commons.io.CounterInputStream;
    var uploadFile = (file instanceof java.io.File) ? file : new java.io.File(file);
    var uploadIS = new java.io.FileInputStream(uploadFile);
    var counterIS = new CounterInputStream(uploadIS, counter.getCounterBar(uploadFile.length()));
    return counterIS;
};

var putObject = (client, bucket, key, file) => {
    var f = $$.file(file);
    var objectMetadata = new Packages.com.qcloud.cos.model.ObjectMetadata();
    objectMetadata.setContentLength(f.length());
    var result = client.putObject(bucket, key, createCounterIS(f), objectMetadata);
    return result;
};

// client -> https://cloud.tencent.com/document/product/436/10199
// region -> https://cloud.tencent.com/document/product/436/6224
var newClient = (region, appId, accessKey, secretKey) => {
    requireJARs();

    var COSClient = Packages.com.qcloud.cos.COSClient;
    var Region = Packages.com.qcloud.cos.region.Region;
    var ClientConfig = Packages.com.qcloud.cos.ClientConfig;
    var BasicCOSCredentials = Packages.com.qcloud.cos.auth.BasicCOSCredentials;
    var cred = new BasicCOSCredentials(appId, accessKey, secretKey);
    var clientConfig = new ClientConfig(new Region(region));
    var client = new COSClient(cred, clientConfig);
    return {
        runWith: (runFunc) => {
            try {
                runFunc(client);
            } catch (e) {
                println('COS Error: ' + e);
            } finally {
                client.shutdown();
            }
        }
    };
};

if (typeof exports == 'object') {
    exports.requireJARs = requireJARs;
    exports.createCounterIS = createCounterIS;
    exports.putObject = putObject;
    exports.newClient = newClient;
}