From d9109c9a4cb54711822543b25e64e124c826d204 Mon Sep 17 00:00:00 2001
From: kantahrek <152828461+kantahrek@users.noreply.github.com>
Date: Tue, 27 Feb 2024 19:42:43 -0800
Subject: [PATCH] Changed activity 'Since' labels to live time tracking

---
 .../presentation/components/ActivityChip.kt   | 35 ++++++++++++++++++-
 1 file changed, 34 insertions(+), 1 deletion(-)

diff --git a/wear/src/main/java/com/example/util/simpletimetracker/presentation/components/ActivityChip.kt b/wear/src/main/java/com/example/util/simpletimetracker/presentation/components/ActivityChip.kt
index 451ab112..e9acb375 100644
--- a/wear/src/main/java/com/example/util/simpletimetracker/presentation/components/ActivityChip.kt
+++ b/wear/src/main/java/com/example/util/simpletimetracker/presentation/components/ActivityChip.kt
@@ -11,6 +11,11 @@ import androidx.compose.foundation.layout.fillMaxWidth
 import androidx.compose.foundation.layout.height
 import androidx.compose.foundation.layout.padding
 import androidx.compose.runtime.Composable
+import androidx.compose.runtime.LaunchedEffect
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.remember
+import androidx.compose.runtime.setValue
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.graphics.Color
 import androidx.compose.ui.semantics.contentDescription
@@ -18,6 +23,7 @@ import androidx.compose.ui.semantics.semantics
 import androidx.compose.ui.text.style.TextOverflow
 import androidx.compose.ui.tooling.preview.Preview
 import androidx.compose.ui.unit.dp
+import androidx.compose.ui.unit.sp
 import androidx.wear.compose.material.SplitToggleChip
 import androidx.wear.compose.material.Switch
 import androidx.wear.compose.material.SwitchDefaults
@@ -26,11 +32,17 @@ import androidx.wear.compose.material.ToggleChipDefaults
 import androidx.wear.tooling.preview.devices.WearDevices
 import com.example.util.simpletimetracker.wearrpc.Activity
 import com.example.util.simpletimetracker.wearrpc.Tag
+import kotlinx.coroutines.time.delay
+import java.time.Duration
 import java.time.Instant
 import java.time.LocalDateTime
 import java.time.ZoneId
 import java.time.format.DateTimeFormatter
 
+private const val ISO_HOURS_MINUTES_PARTS_REGEX = "(\\d[HM])(?!$)"
+private const val DECIMAL_SEPARATOR_AND_FRACTIONAL_PART_REGEX = "\\.\\d+"
+private const val ISO_MISSING_MINUTES_REGEX = "(\\d+H) (\\d+S)"
+
 @Composable
 fun ActivityChip(
     activity: Activity,
@@ -68,7 +80,19 @@ fun ActivityChip(
         },
         secondaryLabel = {
             if (startedAt != null) {
-                Text("Since ${recentTimestampToString(startedAt)}")
+                var startedDiff by remember { mutableStateOf(Duration.between(Instant.ofEpochMilli(startedAt), Instant.now())) }
+
+                Text(
+                    text = durationToLabel(startedDiff),
+                    color = Color.White,
+                    fontSize = 10.sp,
+                    modifier = Modifier.padding(start = 22.dp),
+                )
+
+                LaunchedEffect(startedDiff) {
+                    delay(Duration.ofSeconds(1L))
+                    startedDiff = Duration.between(Instant.ofEpochMilli(startedAt), Instant.now())
+                }
             } else {
                 null
             }
@@ -108,6 +132,15 @@ fun ActivityChip(
     )
 }
 
+fun durationToLabel(duration: Duration): String {
+    return duration.toString()
+        .substring(2) // remove "PT" at the beginning of the string representation
+        .replace(ISO_HOURS_MINUTES_PARTS_REGEX.toRegex(), "$1 ")
+        .replace(DECIMAL_SEPARATOR_AND_FRACTIONAL_PART_REGEX.toRegex(), "")
+        .replace(ISO_MISSING_MINUTES_REGEX.toRegex(), "$1 0M $2")
+        .lowercase()
+}
+
 fun recentTimestampToString(epochMillis: Long): String {
     // Someday, it would be nice for this to show nicer time strings
     // e.g. "a few minutes ago", "yesterday", etc.
-- 
2.51.2