1 files changed, 423 insertions, 0 deletions
diff --git a/src/model/Sport.cpp b/src/model/Sport.cpp
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+++ b/src/model/Sport.cpp
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+
+#include "Sport.h"
+
+// categories
+#include <set>
+
+// sorting and filtering
+#include <map>
+#include <algorithm>
+#include <regex>
+
+// float to string formatting
+#include <iostream>
+#include <iomanip>
+
+#include <QJsonObject>
+#include <QJsonArray>
+#include <QJsonValueRef>
+#include <QString>
+
+// QJsonArray filter function, provide with input array and evaluation function
+QJsonArray filter(QJsonArray input, function<bool (QJsonObject)> eval) {
+    QJsonArray output;
+
+    for (const QJsonValueRef &elemRef :input) {
+        QJsonObject elem = elemRef.toObject();
+        if(eval(elem)) {
+            output.append(elem);
+        }
+    }
+
+    return output;
+}
+
+// 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) {
+    // check if one competitor has no mark
+    QJsonObject l = left.toObject();
+    if (!l.contains("results")) return true;
+    QJsonObject r = right.toObject();
+    if (!r.contains("results")) return false;
+
+    QString lMark = l["results"].toObject()["mark"].toString();
+    QString rMark = r["results"].toObject()["mark"].toString();
+
+    // check if the marks are numerical values
+    if (!lMark.contains(":") && !rMark.contains(":")) return lMark.toFloat() < rMark.toFloat();
+
+    // compare time values if not numerical
+    QString lTime(""), rTime("");
+
+    for (QChar c : lMark) if (c.isDigit()) lTime.append(c);
+    for (QChar c : rMark) if (c.isDigit()) rTime.append(c);
+
+    return lTime.compare(rTime) < 0;
+}
+
+// static compare function for the amount of medals a competitor has gotten
+bool compareMedals(const QJsonValue &left, const QJsonValue &right) {
+    QJsonObject lMedals = left.toObject()["medals"].toObject();
+    QJsonObject rMedals = right.toObject()["medals"].toObject();
+
+    int gold = lMedals["ME_GOLD"].toInt() - rMedals["ME_GOLD"].toInt();
+    int silver = lMedals["ME_SILVER"].toInt() - rMedals["ME_SILVER"].toInt();
+    int bronze = lMedals["ME_BRONZE"].toInt() - rMedals["ME_BRONZE"].toInt();
+
+    return gold < 0 || (gold == 0 && (silver < 0 || (silver == 0 && bronze < 0)));
+}
+
+/**
+ * @brief Sport::lastName Reduce the full name to the part that is marked in capital letters (probably last name).
+ * @param competitors The competitors of one category.
+ */
+void Sport::lastName(QJsonArray &competitors) {
+    // validate competitors
+    if (competitors.isEmpty() || !competitors[0].toObject().contains("name")) return;
+
+    for (int i = 0; i < competitors.size(); ++i) {
+        string fullName = competitors[i].toObject()["name"].toString().toUtf8().constData();
+
+        // regex to identify names, written in CAPS
+        regex r("[A-Z']{2,}");
+        smatch m;
+
+        regex_search(fullName, m, r);
+
+        // combine found names again
+        string lastName = "";
+        for (string s : m) lastName = lastName + s + " ";
+
+        // remove last space
+        QJsonValue nameValue = QJsonValue(QString(lastName.substr(0, lastName.size() - 1).c_str()));
+
+        // create new object with replaced name
+        QJsonObject comp(competitors[i].toObject());
+        comp.remove("name");
+        comp.insert("name", nameValue);
+
+        // replace competitor in array
+        competitors.replace(i, comp);
+    }
+}
+
+/**
+ * @brief Sport::validateDiscipline Validates the discipline object. Checks for the units attribute.
+ * @return True, if discipline contains units.
+ */
+bool Sport::validateDiscipline() {
+    return this->discipline.contains("units");
+}
+
+/**
+ * @brief Sport::getCategories Reads all possible categories (also called units).
+ * @return A set of all category names.
+ */
+set<QString> Sport::getCategories() {
+    set<QString> categoryNames;
+
+    if (!validateDiscipline()) return categoryNames;
+
+    // search in each unit for the category (named "eventUnitName")
+    for (const QJsonValueRef &unitRef : this->discipline["units"].toArray()) {
+        QJsonObject unit = unitRef.toObject();
+
+        // validate unit
+        if (!unit.contains("eventUnitName")) continue;
+
+        categoryNames.insert(unit["eventUnitName"].toString());
+    }
+
+    return categoryNames;
+}
+
+/**
+ * @brief Sport::getCompetitorsByCategory Searches for all competitors, who took part in the given category.
+ * @param category The category to search in.
+ * @return An QJsonArray with all competitors as QJsonValueRef, which can be casted to QJsonObject.
+ */
+QJsonArray Sport::getCompetitorsByCategory(QString category) {
+    QJsonArray competitors;
+
+    if (!validateDiscipline()) return competitors;
+
+    for (const QJsonValueRef &unitRef : this->discipline["units"].toArray()) {
+        QJsonObject unit = unitRef.toObject();
+
+        // validate unit
+        if (!unit.contains("eventUnitName") || !unit.contains("competitors")) continue;
+
+        // search all units with the same category
+        if (unit["eventUnitName"].toString().compare(category, Qt::CaseSensitive) != 0) continue;
+
+        // add all competitors from one unit
+        for (const QJsonValueRef &compRef : unit["competitors"].toArray()) {
+            competitors.push_back(compRef.toObject());
+        }
+    }
+
+    return QJsonArray(competitors);
+}
+
+/**
+ * @brief Sport::getCompetitorsWithMedal Filters all competitors, who have at least one medal. These objects are different from getCompetitorsByCategory !!!
+ * @return All competitors, who won at least one medal. Structure of one competitor: {code, name, noc, medals{ME_GOLD, ME_SILVER, ME_BRONZE}}
+ */
+QJsonArray Sport::getCompetitorsWithMedal() {
+    map<QString, QJsonObject> competitors;
+
+    if (!validateDiscipline()) return QJsonArray();
+
+    // filter all units, which have medal events
+    QJsonArray units = filter(this->discipline["units"].toArray(), [](QJsonObject unit){
+        // search all units with Final, Gold or Bronze in their name, because these are the categories with the medal winners
+        QString unitName = unit["eventUnitName"].toString();
+        return unitName.contains("Bronze", Qt::CaseSensitive)
+               || unitName.contains("Gold", Qt::CaseSensitive)
+               || unitName.contains("Final", Qt::CaseSensitive);
+    });
+
+    for (const QJsonValueRef &unitRef : units) {
+        QJsonObject unit = unitRef.toObject();
+
+        // validate unit
+        if (!unit.contains("competitors")) continue;
+
+        // filter all competitors, who won medals
+        QJsonArray medalComps = filter(unit["competitors"].toArray(), [](QJsonObject comp) {
+            if (!comp.contains("results")) return false;
+
+            QString medalType = comp["results"].toObject()["medalType"].toString();
+            return !medalType.isEmpty();
+        });
+
+        for (const QJsonValueRef &medalCompRef : medalComps) {
+            QJsonObject medalComp = medalCompRef.toObject();
+
+            // validate competitor (with medal)
+            if (!medalComp.contains("name")
+                || !medalComp.contains("results")
+                || !medalComp["results"].toObject().contains("medalType")) continue;
+
+            QString name = medalComp["name"].toString();
+            QString medalType = medalComp["results"].toObject()["medalType"].toString();
+
+            // check if competitor has other medal(s)
+            if (competitors.find(name) == competitors.end()) {
+                competitors.insert({name, createCompetitorWithMedals(medalComp)});
+            }
+
+            // update the medal count
+            QJsonObject updatedMedalCount = QJsonObject(competitors.find(name)->second["medals"].toObject());
+
+            int amount = updatedMedalCount[medalType].toInt() + 1;
+            updatedMedalCount.remove(medalType);
+            updatedMedalCount.insert(medalType, amount);
+
+            // create new medals QJsonObject and set it in the map
+            competitors.find(name)->second["medals"] = updatedMedalCount;
+        }
+    }
+
+    // convert map to QJsonArray
+    QJsonArray output;
+    for (const pair<QString, QJsonObject> &competitor : competitors) {
+        output.append(competitor.second);
+    }
+
+    return output;
+}
+
+/**
+ * @brief Sport::createCompetitorWithMedals Creates a competitor QJsonObject with the following attributes: code, name, noc, medals{ME_GOLD, ME_SILVER, ME_BRONZE}
+ * @param comp The original competitor object.
+ * @return A competitor object with medal counts.
+ */
+QJsonObject Sport::createCompetitorWithMedals(QJsonObject comp) {
+    // repair competitor if something is missing
+    if (!comp.contains("code")) comp.insert("code", "0");
+    if (!comp.contains("name")) comp.insert("code", "");
+    if (!comp.contains("noc")) comp.insert("code", "");
+
+    // create new competitor QJsonObject and add it to the competitor map
+    QJsonObject medals {
+        {"ME_GOLD", 0},
+        {"ME_SILVER", 0},
+        {"ME_BRONZE", 0}
+    };
+
+    QJsonObject medalComp {
+        {"code", comp["code"].toString()},
+        {"name", comp["name"].toString()},
+        {"noc", comp["noc"].toString()},
+        {"medals", medals}
+    };
+
+    return medalComp;
+}
+
+/**
+ * @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);
+}
+
+/**
+ * @brief Sport::filterCompetitors Filters the given QJsonArray by comparing the value of a certain attribute with the given filter string.
+ * @param competitors The competitors of one category.
+ * @param attribute The attribute to filter by.
+ * @param filter The string, which should be contained.
+ */
+void Sport::filterCompetitors(QJsonArray &competitors, QString attribute, QString filter) {
+    for (int i = 0; i < competitors.size(); i++) {
+        QJsonObject comp = competitors[i].toObject();
+
+        if (!comp.contains(attribute) || !comp[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) {
+    if (competitors.isEmpty()) return;
+
+    QJsonObject comp = competitors[0].toObject();
+
+    if (comp.contains("results")) sortCompetitors(competitors, compareMark);
+    else if (comp.contains("medals")) sortCompetitors(competitors, compareMedals);
+}
+
+/**
+ * @brief Sport::sortCompetitors Sorts the given QJsonArray according to the compare function.
+ * @param competitors The competitors of one category.
+ * @param compare A function to compare two competitors with each other. This defines the order.
+ */
+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);
+}
+
+/**
+ * @brief Sport::reverseOrder Reverses the order of the competitors.
+ * @param competitors The competitors of one category.
+ */
+void Sport::reverseOrder(QJsonArray &competitors) {
+    int iterations = competitors.size() / 2; // automatically rounds down
+
+    for (int i = 0; i < iterations; i++) {
+        QJsonObject temp = competitors[i].toObject();
+        competitors[i] = competitors[competitors.size() - 1 - i].toObject();
+        competitors[competitors.size() - 1 - i] = temp;
+    }
+}
+
+/**
+ * @brief Sport::addRelativeToFirst Adds a relative value to the result of all competitors. Relative to the first competitor in the QJsonArray.
+ * Stores the statistic in obj->results->stat for each competitor.
+ * @param competitors The competitors of one category.
+ */
+void Sport::addRelativeToFirst(QJsonArray &competitors) {
+    if (competitors.isEmpty()) return;
+
+    QJsonObject reference = competitors[0].toObject();
+
+    // validate competitors
+    if (!reference.contains("results")) return;
+
+    QString refVal = reference["results"].toObject()["mark"].toString();
+
+    for (int i = 0; i < competitors.size(); i++) {
+        QJsonObject competitor = competitors[i].toObject();
+        QJsonObject results = competitor["results"].toObject();
+
+        if (results.contains("stat")) results.remove("stat");
+
+        // format relative float value to string with 2 digits after decimal point and sign
+        stringstream sstream;
+        sstream << fixed << setprecision(2) << calcRelativeStat(refVal, results["mark"].toString());
+        QString stat(sstream.str().c_str());
+        stat.append("%");
+        if (stat.at(0).isNumber()) stat = QString("+").append(stat);
+
+        results.insert("stat", stat);
+
+        competitor.remove("results");
+        competitor.insert("results", results);
+
+        competitors.replace(i, competitor);
+    }
+
+}
+
+/**
+ * @brief Sport::calcRelativeStat Calculates the relative deviation of val from ref in percent.
+ * @param ref The reference value.
+ * @param val The value to calculate the deviation from.
+ * @return The deviation from ref to val in percent.
+ */
+float Sport::calcRelativeStat(QString ref, QString val) {
+    // check if the value is not a time
+    if (!ref.contains(":") && !val.contains(":")) {
+        float fRef = ref.toFloat();
+
+        if (fRef == 0) return 0.0;
+        return ((val.toFloat() * 100)/ fRef) - 100;
+    }
+
+    regex r("\\d+");
+    smatch mref, mval;
+    string sref = ref.toUtf8().constData();
+    string sval = val.toUtf8().constData();
+
+    regex_search(sref, mref, r);
+    regex_search(sval, mval, r);
+
+    float timeRef = stof(mref.str(1)) * 60 * 100 + stof(mref.str(2)) * 100 + stof(mref.str(3));
+    float timeVal = stof(mval.str(1)) * 60 * 100 + stof(mval.str(2)) * 100 + stof(mval.str(3));
+
+    return ((timeVal * 100) / timeRef) - 100;
+}