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filcnaplo_premium/android/utils/Utils.java

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+package hu.filc.naplo.utils;
+
+import android.content.Context;
+import android.net.ConnectivityManager;
+import android.net.NetworkInfo;
+
+import java.util.Calendar;
+import java.util.Date;
+
+public class Utils {
+    public static boolean hasNetwork(Context context) {
+        ConnectivityManager cm = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
+        NetworkInfo netInfo = cm.getActiveNetworkInfo();
+        if (netInfo != null && netInfo.isConnectedOrConnecting()) {
+            return true;
+        }
+        return false;
+    }
+
+    public static Date getWeekStartDate() {
+        Calendar calendar = Calendar.getInstance();
+        while (calendar.get(Calendar.DAY_OF_WEEK) != Calendar.MONDAY) {
+            calendar.add(Calendar.DATE, -1);
+        }
+        return calendar.getTime();
+    }
+
+    public static Date getWeekEndDate() {
+        Calendar calendar = Calendar.getInstance();
+        while (calendar.get(Calendar.DAY_OF_WEEK) != Calendar.MONDAY) {
+            calendar.add(Calendar.DATE, 1);
+        }
+        calendar.add(Calendar.DATE, -1);
+        return calendar.getTime();
+    }
+}

filcnaplo_premium/android/utils/Week.java

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+package hu.filc.naplo.utils;
+
+import java.time.DayOfWeek;
+import java.time.Duration;
+import java.time.LocalDate;
+
+public class Week {
+    private final LocalDate start;
+    private final LocalDate end;
+
+    private Week(LocalDate start, LocalDate end) {
+        this.start = start;
+        this.end = end;
+    }
+
+    public static Week current() {
+        return fromDate(LocalDate.now());
+    }
+
+    public static Week fromId(int id) {
+        LocalDate _now = getYearStart().plusDays(id * 7L);
+        return new Week(_now.minusDays(_now.getDayOfWeek().getValue() - 1), _now.plusDays(7 - _now.getDayOfWeek().getValue()));
+    }
+
+    public static Week fromDate(LocalDate date) {
+
+        return new Week(date.minusDays(date.getDayOfWeek().getValue() - 1), date.plusDays(7 - date.getDayOfWeek().getValue()));
+    }
+
+    public Week next() {
+        return Week.fromDate(start.plusDays(8));
+    }
+
+    public int id() {
+        return (int) Math.ceil(Duration.between(getYearStart().atStartOfDay(), start.atStartOfDay()).toDays() / 7f);
+    }
+
+    private static LocalDate getYearStart() {
+        LocalDate now = LocalDate.now();
+        LocalDate start = getYearStart(now.getYear());
+        return start.isBefore(now) ? start : getYearStart(now.getYear() -1);
+    }
+
+    private static LocalDate getYearStart(int year) {
+        LocalDate time = LocalDate.of(year, 9, 1);
+        if (time.getDayOfWeek() == DayOfWeek.SATURDAY)
+            return time.plusDays(2);
+        else if (time.getDayOfWeek() == DayOfWeek.SUNDAY)
+            return time.plusDays(1);
+        return time;
+    }
+
+    @Override
+    public boolean equals(Object o) {
+        if (this == o) return true;
+        if (o == null || getClass() != o.getClass()) return false;
+        Week week = (Week) o;
+        return this.id() == week.id();
+    }
+
+    @Override
+    public int hashCode() {
+        return id();
+    }
+}