Initial commit

2026-07-12 14:34:52 +04:00
commit 3abf6bd9c2
557 changed files with 68706 additions and 0 deletions
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+#include "date_time_generator.h"
+
+DateTimeGenerator::DateTimeGenerator(const QPair<qint64, qint64> &dayRange,
+                                     const QPair<QTime, QTime> &timeRange)
+    : dayRange_(dayRange), timeRange_(timeRange) {
+  auto &[lowestDate, highestDate] = dayRange_;
+  if (lowestDate < 0 || highestDate < 0) {
+    qFatal() << "Lowest or highest date is negative";
+  }
+
+  if (lowestDate > highestDate) {
+    qCritical() << "Lowest date is greater than the highest date, values will "
+                   "be swapped";
+    std::swap(lowestDate, highestDate);
+  }
+
+  auto &[lowestTime, highestTime] = timeRange_;
+  if (!lowestTime.isValid() || !highestTime.isValid()) {
+    qFatal() << "Lowest or highest time is not valid";
+  }
+
+  if (lowestTime > highestTime) {
+    qCritical() << "Lowest time is greater than the highest time, values will "
+                   "be swapped";
+    std::swap(lowestTime, highestTime);
+  }
+}
+
+QDateTime DateTimeGenerator::generate(const QDateTime &upperBoundInclusive) {
+  auto [lowestDate, highestDate] = dayRange_;
+  auto [lowestTime, highestTime] = timeRange_;
+  const QDate &maxDateValue = upperBoundInclusive.date();
+  const qint64 maxTimeValueMs =
+      upperBoundInclusive.time().msecsSinceStartOfDay();
+
+  QDate epochDate = QDateTime::fromMSecsSinceEpoch(0).date();
+  qint64 daysFromEpochDateToMaxDateValue = epochDate.daysTo(maxDateValue);
+  highestDate = std::min(highestDate, daysFromEpochDateToMaxDateValue);
+
+  qint64 minusDeltaDays = -bounded(lowestDate, highestDate);
+  QDate dateSoldAt = maxDateValue.addDays(minusDeltaDays);
+
+  qint64 lowestTimeMs = lowestTime.msecsSinceStartOfDay();
+  qint64 highestTimeMs = highestTime.msecsSinceStartOfDay() + 1;
+  qint64 msecsSinceStartOfDay = bounded(lowestTimeMs, highestTimeMs);
+
+  if (msecsSinceStartOfDay > maxTimeValueMs) {
+    msecsSinceStartOfDay = maxTimeValueMs;
+  }
+
+  QTime timeSoldAt = QTime::fromMSecsSinceStartOfDay(msecsSinceStartOfDay);
+
+  return {std::move(dateSoldAt), std::move(timeSoldAt)};
+}
+
+QDateTime DateTimeGenerator::generate(const QDateTime &lowerBoundInclusive,
+                                      const QDateTime &upperBoundInclusive) {
+  if (lowerBoundInclusive > upperBoundInclusive) {
+    qFatal() << "Lower bound date is greater than the upper bound date";
+  }
+
+  const QDate &minDateValue = lowerBoundInclusive.date();
+  const QTime &minTimeValue = lowerBoundInclusive.time();
+
+  QDateTime unboundedLower = generate(upperBoundInclusive);
+
+  QDate boundedDate = unboundedLower.date() <= minDateValue
+                          ? minDateValue
+                          : unboundedLower.date();
+  QTime boundedTime = unboundedLower.time() <= minTimeValue
+                          ? minTimeValue
+                          : unboundedLower.time();
+
+  return {std::move(boundedDate), std::move(boundedTime)};
+}