diff -r 61669abf277f -r e8eecee6aadf src/main/kotlin/de/uapcore/lightpit/util/Issues.kt
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/main/kotlin/de/uapcore/lightpit/util/Issues.kt	Fri Apr 02 11:59:14 2021 +0200
@@ -0,0 +1,71 @@
+/*
+ * Copyright 2021 Mike Becker. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+package de.uapcore.lightpit.util
+
+import de.uapcore.lightpit.entities.Component
+import de.uapcore.lightpit.entities.Issue
+import de.uapcore.lightpit.entities.Project
+import de.uapcore.lightpit.entities.Version
+import de.uapcore.lightpit.types.IssueStatusPhase
+
+data class IssueFilter(
+    val project: Filter<Project> = AllFilter(),
+    val version: Filter<Version> = AllFilter(),
+    val component: Filter<Component> = AllFilter()
+)
+
+data class IssueSorter(val criteria: List<Criteria>) : Comparator<Issue> {
+    enum class Field {
+        DONE, ETA, UPDATED
+    }
+
+    data class Criteria(val field: Field, val asc: Boolean)
+
+    override fun compare(left: Issue, right: Issue): Int {
+        if (left == right) {
+            return 0;
+        }
+        for (c in criteria) {
+            val result = when (c.field) {
+                Field.DONE -> (left.status.phase == IssueStatusPhase.Done).compareTo(right.status.phase == IssueStatusPhase.Done)
+                Field.ETA -> {
+                    val l = left.eta
+                    val r = right.eta
+                    if (l == null && r == null) 0
+                    else if (l == null) 1
+                    else if (r == null) -1
+                    else l.compareTo(r)
+                }
+                Field.UPDATED -> left.updated.compareTo(right.updated)
+            }
+            if (result != 0) {
+                return if (c.asc) result else -result
+            }
+        }
+        return 0
+    }
+}
+