Added another filter and sort functions. Also using mock data to test.

src/api/OlympicsAPI.cpp

@@ -12,6 +12,7 @@
 #include <QUrlQuery>
 
 // json parsing
+#include <QFile>
 #include <QJsonValue>
 #include <QJsonDocument>
 #include <QJsonObject>
@@ -29,41 +30,54 @@ using namespace std;
 QJsonObject OlympicsAPI::getSportData(OlympicsAPI::Disciplines sport) {
     string shortName = this->getDisciplineShort(sport);
 
-    // create custom temporary event loop on stack
-    QEventLoop eventLoop;
+    if (USE_API_REQUEST) {
+        // create custom temporary event loop on stack
+        QEventLoop eventLoop;
 
-    // "quit()" the event-loop, when the network request "finished()"
-    QNetworkAccessManager mgr;
-    QObject::connect(&mgr, SIGNAL(finished(QNetworkReply*)), &eventLoop, SLOT(quit()));
+        // "quit()" the event-loop, when the network request "finished()"
+        QNetworkAccessManager mgr;
+        QObject::connect(&mgr, SIGNAL(finished(QNetworkReply*)), &eventLoop, SLOT(quit()));
 
-    QString endpoint = (API_LINK + shortName).c_str();
+        QString endpoint = (API_LINK + shortName).c_str();
 
-    // the HTTP request
-    QNetworkRequest req( (QUrl( endpoint )) );
-    QNetworkReply *reply = mgr.get(req);
-    eventLoop.exec(); // blocks stack until "finished()" has been called
+        // the HTTP request
+        QNetworkRequest req( (QUrl( endpoint )) );
+        QNetworkReply *reply = mgr.get(req);
+        eventLoop.exec(); // blocks stack until "finished()" has been called
 
-    if (reply->error() == QNetworkReply::NoError) {
-        //success
+        if (reply->error() == QNetworkReply::NoError) {
+            //success
 
-        QString strReply = (QString)reply->readAll();
+            QString strReply = (QString)reply->readAll();
 
-        //parse json
-        QJsonDocument jsonResponse = QJsonDocument::fromJson(strReply.toUtf8());
+            //parse json
+            QJsonDocument jsonResponse = QJsonDocument::fromJson(strReply.toUtf8());
 
-        QJsonObject jsonObj = jsonResponse.object();
+            QJsonObject jsonObj = jsonResponse.object();
 
-        delete reply;
+            delete reply;
 
-        return jsonObj;
-    }
-    else {
-        //failure
-        delete reply;
+            return jsonObj;
+        }
+        else {
+            //failure
+            delete reply;
 
-        throw invalid_argument("API request failed.");
+            throw invalid_argument("API request failed.");
+        }
     }
 
+    // if API is not used, open locally stored data
+    QString filePath = ("../../res/mock/" + shortName + ".json").c_str();
+    QFile file( filePath );
+
+    if(!file.open(QIODevice::ReadOnly | QIODevice::Text)) {
+        throw invalid_argument("Could not open file to read data of the given discipline.");
+    } else {
+        QString text = file.readAll();
+        file.close();
+        return (QJsonDocument::fromJson(text.toUtf8())).object();
+    }
 }
 
 /**

src/api/OlympicsAPI.h

@@ -8,17 +8,10 @@
 #include <string>
 #include <QJsonObject>
 
-using namespace std;
+// TODO: change this to true to use the olympics api, instead of the mock date in res/mock/
+#define USE_API_REQUEST false
 
-/*
- * TODO:
- * Replace api request code snippet in main with:
- *
-    OlympicsAPI api;
-    QJsonObject archery = api.getSportData(api.Archery);
-    qDebug() << "Competitor:" << archery["units"][0]["competitors"][0]["name"].toString();
- *
- */
+using namespace std;
 
 class OlympicsAPI {
 

src/discipline/Sport.cpp

@@ -1,12 +1,34 @@
 
 #include "Sport.h"
 #include <set>
+#include <algorithm>
 
 #include <QJsonObject>
 #include <QJsonArray>
 #include <QJsonValueRef>
 #include <QString>
 
+// static compare function for specific attribute in competitors
+function<bool (const QJsonValue &left, const QJsonValue &right)> genCompare(QString attribute) {
+    return [attribute](const QJsonValue &left, const QJsonValue &right) {
+        QString l = left.toObject()[attribute].toString();
+        QString r = right.toObject()[attribute].toString();
+        return l.compare(r) < 0;
+    };
+}
+
+// static compare function for the results of a competitor in a specific competition (also called mark)
+bool compareMark(const QJsonValue &left, const QJsonValue &right) {
+    QJsonObject l = left.toObject();
+    if (!l.contains("results")) return true;
+    QJsonObject r = right.toObject();
+    if (!r.contains("results")) return false;
+
+    float lMark = l["results"].toObject()["mark"].toString().toFloat();
+    float rMark = r["results"].toObject()["mark"].toString().toFloat();
+    return lMark < rMark;
+}
+
 
 /**
  * @brief Sport::getCategories Reads all possible categories (also called units).
@@ -44,5 +66,65 @@ QJsonArray Sport::getCompetitorsByCategory(QString category) {
         }
     }
 
-    return competitors;
+    return QJsonArray(competitors);
 }
+
+/**
+ * @brief Sport::filterByName Filter the competitors by name (case insensitive).
+ * @param competitors The competitors of one category.
+ * @param name The (part of the) name to search for.
+ */
+void Sport::filterByName(QJsonArray &competitors, QString name) {
+    filterCompetitors(competitors, QString("name"), name);
+}
+
+/**
+ * @brief Sport::filterByCountry Filter the competitors by their national olympics comittee (case insensitive, short form).
+ * @param competitors The competitors of one category.
+ * @param nocShort The (part of the) national olympics comittee short name to search for.
+ */
+void Sport::filterByCountry(QJsonArray &competitors, QString nocShort) {
+    filterCompetitors(competitors, QString("noc"), nocShort);
+}
+
+void Sport::filterCompetitors(QJsonArray &competitors, QString attribute, QString filter) {
+    for (int i = 0; i < competitors.size(); i++) {
+
+        if (!competitors[i].toObject()[attribute].toString().contains(filter, Qt::CaseInsensitive)) {
+            // remove the competitor, if the attribute does not fit the filter string
+            competitors.removeAt(i);
+            i--;
+        }
+
+    }
+}
+
+/**
+ * @brief Sport::sortByName Sort the competitors by their name (alphabetical, ascending).
+ * @param competitors The competitors of one category.
+ */
+void Sport::sortByName(QJsonArray &competitors) {
+    sortCompetitors(competitors, genCompare( QString("name") ));
+}
+
+/**
+ * @brief Sport::sortByCountry Sort the competitors by their national olympic comittee short name (alphabetical, ascending).
+ * @param competitors The competitors of one category.
+ */
+void Sport::sortByCountry(QJsonArray &competitors) {
+    sortCompetitors(competitors, genCompare( QString("noc") ));
+}
+
+/**
+ * @brief Sport::sortByResult Sort the competitors by their results in one specific category (numerical, ascending).
+ * @param competitors The competitors of one category.
+ */
+void Sport::sortByResult(QJsonArray &competitors) {
+    sortCompetitors(competitors, compareMark);
+}
+
+void Sport::sortCompetitors(QJsonArray &competitors, function<bool (const QJsonValue &left, const QJsonValue &right)> compare) {
+    make_heap(competitors.begin(), competitors.end(), compare);
+    sort_heap(competitors.begin(), competitors.end(), compare);
+}
+

src/discipline/Sport.h

@@ -23,18 +23,46 @@ public:
     set<QString> getCategories();
     QJsonArray getCompetitorsByCategory(QString category);
 
-    // chainable
-    QJsonObject filterByName(QJsonObject discipline, QString name);
-    QJsonObject filterByCountry(QJsonObject discipline, QString name);
+    // filter to change the current competitor array
+    void filterByName(QJsonArray& competitors, QString name);
+    void filterByCountry(QJsonArray& competitors, QString nocShort);
+
+    // sort functions to change the order of the current competitor array
+    void sortByName(QJsonArray &competitors);
+    void sortByCountry(QJsonArray &competitors);
+    void sortByResult(QJsonArray &competitors);
 
     void setDiscipline(QJsonObject discipline) {
-        this->discipline = discipline;
+        this->discipline = QJsonObject(discipline);
     }
 
 private:
 
+    /*
+     * Analysis of provided competitor objects:
+     *
+     * Attributes:
+     * - code
+     * - noc (national olympics comittee)
+     * - name (sometimes the country name? mostly the competitors name)
+     * - order
+     * [- results] (only if the results are out!)
+     *
+     *
+     * Analysis of provided result objects:
+     *
+     * Attributes:
+     * - position
+     * - mark
+     * - medalType
+     * - irk
+     * [- winnerLoserTie] (only if provided in the discipline?)
+     */
     QJsonObject discipline;
 
+    void filterCompetitors(QJsonArray& competitors, QString attribute, QString filter);
+    void sortCompetitors(QJsonArray &competitors,  function<bool (const QJsonValue &left, const QJsonValue &right)> compare);
+
 };