include vk include mainwindow include QNetworkAccessManage include QNe

#include "vk.h"
#include "mainwindow.h"
#include <QNetworkAccessManager>
#include <QNetworkReply>
#include <QObject>

VK::VK(QString token) {
    this->token = token;
}

VK::~VK() {

}

void VK::request(QString method, std::map<QString, QString> data) {
    QNetworkAccessManager *manager = new QNetworkAccessManager();
    QObject::connect(manager, SIGNAL(finished(QNetworkReply*)), this, SLOT(_finished(QNetworkReply*)));
    QString urlString("https://api.vk.com/method/" + method + "?");
    std::map<QString, QString>::iterator i;
    for (i = data.begin(); i != data.end(); i++) {
        urlString += i->first + "=" + i->second + "&";
    }
    urlString += "&access_token=" + this->token;
    QUrl url(urlString);
    manager->get(QNetworkRequest(url));
}

void VK::_finished(QNetworkReply *reply) {
    if (reply->error() != QNetworkReply::NoError) {
        qDebug() << (QString) reply->readAll();
    } else {
        QString json(reply->readAll());
        VKResponse *response = new VKResponse(json);
        VKError *error = new VKError(json);
        VKAnswer *answer = new VKAnswer(error, response);
        emit requestFinished(answer);
    }
}

VKResponse::VKResponse(QString json) {
    QJsonDocument jsonResponse = QJsonDocument::fromJson(json.toUtf8());
    QJsonObject jsonObject = jsonResponse.object();
    QJsonObject response = jsonObject["response"].toObject();
    this->data = &response;
}

VKError::VKError(QString json) {
    QJsonDocument jsonResponse = QJsonDocument::fromJson(json.toUtf8());
    QJsonObject jsonObject = jsonResponse.object();
    if (jsonObject["error"].isNull()) {
        this->_error = 0;
        this->_text = json;
    } else {
        this->_text = jsonObject["error"].toString();
        this->_error = jsonObject["error"].toObject()["error_code"].toInt();
    }
}

QString VKError::text() {
    return this->_text;
}

VKAnswer::VKAnswer(VKError *error, VKResponse *response) {
    this->error = error;
    this->response = response;
}