1 files changed, 113 insertions, 0 deletions
diff --git a/rockworkd/libpebble/appdownloader.cpp b/rockworkd/libpebble/appdownloader.cpp
new file mode 100644
index 0000000..acecf0f
--- /dev/null
+++ b/rockworkd/libpebble/appdownloader.cpp
@@ -0,0 +1,113 @@
+#include "appdownloader.h"
+#include "watchconnection.h"
+#include "watchdatareader.h"
+#include "watchdatawriter.h"
+#include "ziphelper.h"
+
+#include <QNetworkAccessManager>
+#include <QNetworkReply>
+#include <QNetworkRequest>
+#include <QDir>
+#include <QFile>
+#include <QJsonDocument>
+
+AppDownloader::AppDownloader(const QString &storagePath, QObject *parent) :
+    QObject(parent),
+    m_storagePath(storagePath + "/apps/")
+{
+    m_nam = new QNetworkAccessManager(this);
+}
+
+void AppDownloader::downloadApp(const QString &id)
+{
+    QNetworkRequest request(QUrl("https://api2.getpebble.com/v2/apps/id/" + id));
+    QNetworkReply *reply = m_nam->get(request);
+    reply->setProperty("storeId", id);
+    connect(reply, &QNetworkReply::finished, this, &AppDownloader::appJsonFetched);
+}
+
+void AppDownloader::appJsonFetched()
+{
+    QNetworkReply *reply = static_cast<QNetworkReply*>(sender());
+    reply->deleteLater();
+
+    QString storeId = reply->property("storeId").toString();
+
+    if (reply->error() != QNetworkReply::NoError) {
+        qWarning() << "Error fetching App Json" << reply->errorString();
+        return;
+    }
+
+    QJsonParseError error;
+    QJsonDocument jsonDoc = QJsonDocument::fromJson(reply->readAll(), &error);
+    if (error.error != QJsonParseError::NoError) {
+        qWarning() << "Error parsing App Json" << error.errorString();
+        return;
+    }
+
+    QVariantMap map = jsonDoc.toVariant().toMap();
+    if (!map.contains("data") || map.value("data").toList().length() == 0) {
+        qWarning() << "Unexpected json content:" << jsonDoc.toJson();
+        return;
+    }
+    QVariantMap appMap = map.value("data").toList().first().toMap();
+    QString pbwFileUrl = appMap.value("latest_release").toMap().value("pbw_file").toString();
+    if (pbwFileUrl.isEmpty()) {
+        qWarning() << "pbw file url empty." << jsonDoc.toJson();
+        return;
+    }
+
+    QDir dir;
+    dir.mkpath(m_storagePath + storeId);
+
+    QString iconFile = appMap.value("list_image").toMap().value("144x144").toString();
+    QNetworkRequest request(iconFile);
+    QNetworkReply *imageReply = m_nam->get(request);
+    qDebug() << "fetching image" << iconFile;
+    connect(imageReply, &QNetworkReply::finished, [this, imageReply, storeId]() {
+        imageReply->deleteLater();
+        QString targetFile = m_storagePath + storeId + "/list_image.png";
+        qDebug() << "saving image to" << targetFile;
+        QFile f(targetFile);
+        if (f.open(QFile::WriteOnly)) {
+            f.write(imageReply->readAll());
+            f.close();
+        }
+    });
+
+    fetchPackage(pbwFileUrl, storeId);
+}
+
+void AppDownloader::fetchPackage(const QString &url, const QString &storeId)
+{
+    QNetworkRequest request(url);
+    QNetworkReply *reply = m_nam->get(request);
+    reply->setProperty("storeId", storeId);
+    connect(reply, &QNetworkReply::finished, this, &AppDownloader::packageFetched);
+}
+
+void AppDownloader::packageFetched()
+{
+    QNetworkReply *reply = qobject_cast<QNetworkReply*>(sender());
+    reply->deleteLater();
+
+    QString storeId = reply->property("storeId").toString();
+
+    QFile f(m_storagePath + storeId + "/" + reply->request().url().fileName() + ".zip");
+    if (!f.open(QFile::WriteOnly | QFile::Truncate)) {
+        qWarning() << "Error opening file for writing";
+        return;
+    }
+    f.write(reply->readAll());
+    f.flush();
+    f.close();
+
+    QString zipName = m_storagePath + storeId + "/" + reply->request().url().fileName() + ".zip";
+
+    if (!ZipHelper::unpackArchive(zipName, m_storagePath + storeId)) {
+        qWarning() << "Error unpacking App zip file";
+        return;
+    }
+
+    emit downloadFinished(storeId);
+}