From 5dd2d4392e826a44e68a0554e4bfba18c385c947 Mon Sep 17 00:00:00 2001
From: Aurora Lahtela <24460436+AuroraLS3@users.noreply.github.com>
Date: Fri, 27 May 2022 20:13:12 +0300
Subject: [PATCH] Groundwork for #1050

---
 .../plan/delivery/domain/TimeSegment.java     | 75 +++++++++++++++++++
 .../domain/mutators/SessionsMutator.java      |  5 ++
 .../domain/mutators/TimeSegmentsMutator.java  | 59 +++++++++++++++
 3 files changed, 139 insertions(+)
 create mode 100644 Plan/common/src/main/java/com/djrapitops/plan/delivery/domain/TimeSegment.java
 create mode 100644 Plan/common/src/main/java/com/djrapitops/plan/delivery/domain/mutators/TimeSegmentsMutator.java

diff --git a/Plan/common/src/main/java/com/djrapitops/plan/delivery/domain/TimeSegment.java b/Plan/common/src/main/java/com/djrapitops/plan/delivery/domain/TimeSegment.java
new file mode 100644
index 000000000..8e0c46f71
--- /dev/null
+++ b/Plan/common/src/main/java/com/djrapitops/plan/delivery/domain/TimeSegment.java
@@ -0,0 +1,75 @@
+/*
+ *  This file is part of Player Analytics (Plan).
+ *
+ *  Plan is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU Lesser General Public License v3 as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  Plan is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU Lesser General Public License for more details.
+ *
+ *  You should have received a copy of the GNU Lesser General Public License
+ *  along with Plan. If not, see <https://www.gnu.org/licenses/>.
+ */
+package com.djrapitops.plan.delivery.domain;
+
+import java.util.Comparator;
+import java.util.Objects;
+
+public class TimeSegment<T> {
+
+    private final long start;
+    private final long end;
+    private final T value;
+
+    public TimeSegment(long start, long end, T value) {
+        this.start = start;
+        this.end = end;
+        this.value = value;
+    }
+
+    public static <V> Comparator<TimeSegment<V>> earliestStartFirstComparator() {
+        return Comparator.comparingLong(segment -> segment.start);
+    }
+
+    public static <V> Comparator<TimeSegment<V>> earliestEndFirstComparator() {
+        return Comparator.comparingLong(segment -> segment.end);
+    }
+
+    public long getStart() {
+        return start;
+    }
+
+    public long getEnd() {
+        return end;
+    }
+
+    public T getValue() {
+        return value;
+    }
+
+    @Override
+    public boolean equals(Object o) {
+        if (this == o) return true;
+        if (o == null || getClass() != o.getClass()) return false;
+        TimeSegment<?> that = (TimeSegment<?>) o;
+        return getStart() == that.getStart() && getEnd() == that.getEnd() && Objects.equals(getValue(), that.getValue());
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(getStart(), getEnd(), getValue());
+    }
+
+    @Override
+    public String toString() {
+        return "TimeSegment{" +
+                "start=" + start +
+                ", end=" + end +
+                ", value=" + value +
+                '}';
+    }
+}
diff --git a/Plan/common/src/main/java/com/djrapitops/plan/delivery/domain/mutators/SessionsMutator.java b/Plan/common/src/main/java/com/djrapitops/plan/delivery/domain/mutators/SessionsMutator.java
index cbeabdd3d..855c848cf 100644
--- a/Plan/common/src/main/java/com/djrapitops/plan/delivery/domain/mutators/SessionsMutator.java
+++ b/Plan/common/src/main/java/com/djrapitops/plan/delivery/domain/mutators/SessionsMutator.java
@@ -31,6 +31,7 @@ import com.djrapitops.plan.gathering.domain.event.JoinAddress;
 import com.djrapitops.plan.identification.ServerUUID;
 import com.djrapitops.plan.settings.config.WorldAliasSettings;
 import com.djrapitops.plan.utilities.analysis.Median;
+import com.djrapitops.plan.utilities.comparators.DateHolderOldestComparator;
 import com.djrapitops.plan.utilities.java.Lists;
 
 import java.util.*;
@@ -102,6 +103,10 @@ public class SessionsMutator {
         return sessions;
     }
 
+    public TimeSegmentsMutator<Integer> onlineTimeSegments() {
+        return TimeSegmentsMutator.sessionClockSegments(sort(new DateHolderOldestComparator()).all());
+    }
+
     public SessionsMutator filterPlayedOnServer(ServerUUID serverUUID) {
         return filterBy(session ->
                 session.getServerUUID().equals(serverUUID)
diff --git a/Plan/common/src/main/java/com/djrapitops/plan/delivery/domain/mutators/TimeSegmentsMutator.java b/Plan/common/src/main/java/com/djrapitops/plan/delivery/domain/mutators/TimeSegmentsMutator.java
new file mode 100644
index 000000000..248ca2c29
--- /dev/null
+++ b/Plan/common/src/main/java/com/djrapitops/plan/delivery/domain/mutators/TimeSegmentsMutator.java
@@ -0,0 +1,59 @@
+/*
+ *  This file is part of Player Analytics (Plan).
+ *
+ *  Plan is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU Lesser General Public License v3 as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  Plan is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU Lesser General Public License for more details.
+ *
+ *  You should have received a copy of the GNU Lesser General Public License
+ *  along with Plan. If not, see <https://www.gnu.org/licenses/>.
+ */
+package com.djrapitops.plan.delivery.domain.mutators;
+
+import com.djrapitops.plan.delivery.domain.DateObj;
+import com.djrapitops.plan.delivery.domain.TimeSegment;
+import com.djrapitops.plan.gathering.domain.FinishedSession;
+import com.djrapitops.plan.utilities.comparators.DateHolderOldestComparator;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.concurrent.TimeUnit;
+
+public class TimeSegmentsMutator<T> {
+
+    List<TimeSegment<T>> segments;
+
+    public TimeSegmentsMutator(List<TimeSegment<T>> segments) {
+        this.segments = segments;
+    }
+
+    public static TimeSegmentsMutator<Integer> sessionClockSegments(List<FinishedSession> sessions) {
+        List<DateObj<Integer>> changes = new ArrayList<>();
+
+        for (FinishedSession session : sessions) {
+            long startTime = (session.getStart()) % TimeUnit.DAYS.toMillis(1);
+            long endTime = (session.getEnd()) % TimeUnit.DAYS.toMillis(1);
+            changes.add(new DateObj<>(startTime, 1));
+            changes.add(new DateObj<>(endTime, -1));
+        }
+
+        changes.sort(new DateHolderOldestComparator());
+
+        int count = 0;
+        long previousTime = 0L;
+        List<TimeSegment<Integer>> segments = new ArrayList<>();
+        for (DateObj<Integer> change : changes) {
+            segments.add(new TimeSegment<>(previousTime, change.getDate(), count));
+            count += change.getValue();
+            previousTime = change.getDate();
+        }
+
+        return new TimeSegmentsMutator<>(segments);
+    }
+}