From cf24f9c0e3df55daaec2ef872a359ad3348ee9b3 Mon Sep 17 00:00:00 2001
From: Rene Luria <rene.luria@infomaniak.com>
Date: Thu, 6 Aug 2026 17:03:24 +0200
Subject: [PATCH] feat: add groupEventsByDate helper for schedule date headers

---
 .../ch/parano/myicek/filter/EventFilter.kt    |  6 +++
 .../parano/myicek/filter/EventFilterTest.kt   | 47 ++++++++++++++++++-
 2 files changed, 52 insertions(+), 1 deletion(-)

diff --git a/composeApp/src/commonMain/kotlin/ch/parano/myicek/filter/EventFilter.kt b/composeApp/src/commonMain/kotlin/ch/parano/myicek/filter/EventFilter.kt
index 29fee2c..c3a0258 100644
--- a/composeApp/src/commonMain/kotlin/ch/parano/myicek/filter/EventFilter.kt
+++ b/composeApp/src/commonMain/kotlin/ch/parano/myicek/filter/EventFilter.kt
@@ -52,3 +52,9 @@ fun List<Event>.distinctAgegroups(): List<String> =
 
 fun List<Event>.distinctSubgroups(): List<String> =
     map { extractSubgroup(it.name) }.toSet().sorted()
+
+fun groupEventsByDate(events: List<Event>): List<Pair<String, List<Event>>> =
+    events
+        .sortedBy { it.start }
+        .groupBy { it.start.take(10) }
+        .toList()
diff --git a/composeApp/src/commonTest/kotlin/ch/parano/myicek/filter/EventFilterTest.kt b/composeApp/src/commonTest/kotlin/ch/parano/myicek/filter/EventFilterTest.kt
index 847522b..e2f0fba 100644
--- a/composeApp/src/commonTest/kotlin/ch/parano/myicek/filter/EventFilterTest.kt
+++ b/composeApp/src/commonTest/kotlin/ch/parano/myicek/filter/EventFilterTest.kt
@@ -20,6 +20,7 @@ package ch.parano.myicek.filter
 import ch.parano.myicek.models.Event
 import kotlin.test.Test
 import kotlin.test.assertEquals
+import kotlin.test.assertTrue
 
 class EventFilterTest {
 
@@ -28,6 +29,7 @@ class EventFilterTest {
         agegroup: String = "U13 (Elite)",
         name: String = "U13 Elite - HC Ajoie",
         eventType: String = "Jeu",
+        start: String = "2024-11-10T14:00:00",
     ) = Event(
         idEvent = id,
         agegroup = agegroup,
@@ -35,7 +37,7 @@ class EventFilterTest {
         title = "Title",
         opponent = "Opp",
         place = "Place",
-        start = "2024-11-10T14:00:00",
+        start = start,
         end = "2024-11-10T16:15:00",
         color = "#e4222e",
         eventType = eventType,
@@ -171,4 +173,47 @@ class EventFilterTest {
         assertEquals("U13 Elite", result[0])
         assertEquals("U13 Top", result[1])
     }
+
+    @Test
+    fun testGroupEventsByDateSingleDay() {
+        val events = listOf(
+            event(id = "1", start = "2024-11-10T14:00:00"),
+            event(id = "2", start = "2024-11-10T16:00:00"),
+        )
+        val grouped = groupEventsByDate(events)
+        assertEquals(1, grouped.size)
+        assertEquals("2024-11-10", grouped[0].first)
+        assertEquals(2, grouped[0].second.size)
+    }
+
+    @Test
+    fun testGroupEventsByDateMultipleDays() {
+        val events = listOf(
+            event(id = "1", start = "2024-11-11T10:00:00"),
+            event(id = "2", start = "2024-11-10T14:00:00"),
+            event(id = "3", start = "2024-11-10T16:00:00"),
+        )
+        val grouped = groupEventsByDate(events)
+        assertEquals(2, grouped.size)
+        assertEquals("2024-11-10", grouped[0].first)
+        assertEquals(2, grouped[0].second.size)
+        assertEquals("2024-11-11", grouped[1].first)
+        assertEquals(1, grouped[1].second.size)
+    }
+
+    @Test
+    fun testGroupEventsByDateWithSpaceSeparator() {
+        val events = listOf(
+            event(id = "1", start = "2024-11-10 14:00:00"),
+        )
+        val grouped = groupEventsByDate(events)
+        assertEquals(1, grouped.size)
+        assertEquals("2024-11-10", grouped[0].first)
+    }
+
+    @Test
+    fun testGroupEventsByDateEmpty() {
+        val grouped = groupEventsByDate(emptyList())
+        assertTrue(grouped.isEmpty())
+    }
 }