ViewModel for dashboard

app/src/main/java/net/tinsae/clocked/dashboard/DashboardScreen.kt

@@ -15,9 +15,8 @@ import androidx.compose.material3.CardDefaults
 import androidx.compose.material3.MaterialTheme
 import androidx.compose.material3.Text
 import androidx.compose.runtime.Composable
+import androidx.compose.runtime.collectAsState
 import androidx.compose.runtime.getValue
-import androidx.compose.runtime.mutableStateOf
-import androidx.compose.runtime.remember
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.graphics.Color
@@ -25,39 +24,38 @@ import androidx.compose.ui.text.font.FontWeight
 import androidx.compose.ui.tooling.preview.Preview
 import androidx.compose.ui.unit.dp
 import androidx.compose.ui.unit.sp
+import androidx.lifecycle.viewmodel.compose.viewModel
 import net.tinsae.clocked.components.ActivityList
-import net.tinsae.clocked.service.deleteLog
-import net.tinsae.clocked.service.editLog
-import net.tinsae.clocked.service.getRecentLogs
 import net.tinsae.clocked.ui.theme.ClockedTheme
 import net.tinsae.clocked.ui.theme.cyan
 import net.tinsae.clocked.ui.theme.green
 import net.tinsae.clocked.ui.theme.red
 
 @Composable
-fun DashboardScreen(modifier: Modifier = Modifier) {
-
+fun DashboardScreen(
+    modifier: Modifier = Modifier,
+    viewModel: DashboardViewModel = viewModel()
+) {
+    val uiState by viewModel.uiState.collectAsState()
 
     Column(
         modifier = modifier
             .fillMaxSize()
-            .padding(16.dp,0.dp)
+            .padding(16.dp, 0.dp)
     ) {
         Row(
             modifier = Modifier.fillMaxWidth(),
             horizontalArrangement = Arrangement.SpaceBetween
         ) {
-            SummaryCard(title = "Overtime", value = "+12h 30m", color = green, modifier = Modifier.weight(1f))
+            SummaryCard(title = "Overtime", value = uiState.overtime, color = green, modifier = Modifier.weight(1f))
             Spacer(modifier = Modifier.width(16.dp))
-            SummaryCard(title = "Time Off", value = "−6h 00m", color = red, modifier = Modifier.weight(1f))
+            SummaryCard(title = "Time Off", value = uiState.timeOff, color = red, modifier = Modifier.weight(1f))
         }
 
-        // ADDED: Manual spacer
         Spacer(modifier = Modifier.height(16.dp))
 
-        NetBalanceCard(value = "+6h 30m")
+        NetBalanceCard(value = uiState.netBalance)
 
-        // ADDED: Manual spacer
         Spacer(modifier = Modifier.height(16.dp))
 
         Row(
@@ -69,13 +67,10 @@ fun DashboardScreen(modifier: Modifier = Modifier) {
             ActionButton(text = "− Time Off", modifier = Modifier.weight(1f))
         }
 
-        // ADDED: Manual spacer
         Spacer(modifier = Modifier.height(16.dp))
 
-        // This section now works as expected
-        val recentLogs by remember { mutableStateOf(getRecentLogs()) }
         ActivityList(
-            items = recentLogs,
+            items = uiState.recentActivities,
             modifier = Modifier.weight(1f)
         )
     }
@@ -131,6 +126,6 @@ fun ActionButton(text: String, modifier: Modifier = Modifier) {
 @Composable
 fun DashboardScreenPreview() {
     ClockedTheme {
-        DashboardScreen()
+        DashboardScreen(viewModel = DashboardViewModel())
     }
 }

app/src/main/java/net/tinsae/clocked/dashboard/DashboardViewModel.kt

@@ -0,0 +1,43 @@
+package net.tinsae.clocked.dashboard
+
+import androidx.lifecycle.ViewModel
+import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.flow.StateFlow
+import net.tinsae.clocked.data.Log
+import net.tinsae.clocked.service.getRecentLogs
+import net.tinsae.clocked.service.getTotalOvertimeDuration
+import net.tinsae.clocked.service.getTotalTimeOffDuration
+import net.tinsae.clocked.util.Util.formatDuration
+
+data class DashboardUiState(
+    val overtime: String = "0m",
+    val timeOff: String = "0m",
+    val netBalance: String = "0m",
+    val recentActivities: List<Log> = emptyList()
+)
+
+class DashboardViewModel : ViewModel() {
+    private val _uiState = MutableStateFlow(DashboardUiState())
+    val uiState: StateFlow<DashboardUiState> = _uiState
+
+    init {
+        loadDashboardData()
+    }
+
+    private fun loadDashboardData() {
+        val recentLogs = getRecentLogs()
+
+        val overtimeDuration = getTotalOvertimeDuration()
+        val timeOffDuration = getTotalTimeOffDuration()
+
+        // timeOffDuration is negative, so we add it to get the difference
+        val netBalanceDuration = overtimeDuration.plus(timeOffDuration)
+
+        _uiState.value = DashboardUiState(
+            overtime = formatDuration(overtimeDuration),
+            timeOff = formatDuration(timeOffDuration),
+            netBalance = formatDuration(netBalanceDuration),
+            recentActivities = recentLogs
+        )
+    }
+}

app/src/main/java/net/tinsae/clocked/history/HistoryScreen.kt

@@ -6,15 +6,12 @@ import androidx.compose.foundation.layout.Column
 import androidx.compose.foundation.layout.fillMaxSize
 import androidx.compose.foundation.layout.fillMaxWidth
 import androidx.compose.foundation.layout.padding
-import androidx.compose.foundation.layout.safeDrawingPadding
 import androidx.compose.foundation.lazy.LazyColumn
 import androidx.compose.foundation.lazy.items
 import androidx.compose.material3.MaterialTheme
 import androidx.compose.material3.PrimaryTabRow
-import androidx.compose.material3.Scaffold
 import androidx.compose.material3.Surface
 import androidx.compose.material3.Tab
-import androidx.compose.material3.TabRow
 import androidx.compose.material3.Text
 import androidx.compose.runtime.Composable
 import androidx.compose.runtime.getValue
@@ -35,22 +32,7 @@ import net.tinsae.clocked.service.getAllLogs
 import net.tinsae.clocked.service.getOvertimeLogs
 import net.tinsae.clocked.service.getTimeOffLogs
 import net.tinsae.clocked.ui.theme.ClockedTheme
-import java.time.Instant
-import java.time.ZoneId
-import java.time.format.DateTimeFormatter
-
-// Helper to format the Instant into a readable string like "Tue 18"
-fun formatTimestampToDayAndDate(instant: Instant): String {
-    val formatter = DateTimeFormatter.ofPattern("E d").withZone(ZoneId.systemDefault())
-    return formatter.format(instant)
-}
-
-// Helper to format the Instant into a month and year like "March 2025"
-fun formatTimestampToMonthYear(instant: Instant): String {
-    val formatter = DateTimeFormatter.ofPattern("MMMM yyyy").withZone(ZoneId.systemDefault())
-    return formatter.format(instant)
-}
-
+import net.tinsae.clocked.util.Util.formatTimestampToMonthYear
 
 @OptIn(ExperimentalFoundationApi::class)
 @Composable

app/src/main/java/net/tinsae/clocked/service/LogService.kt

@@ -69,6 +69,20 @@ fun getRecentLogs(): List<Log> {
     return logs.take(7)
 }
 
+fun getTotalOvertimeDuration(): Duration {
+    return logs
+        .filter { it.type == EntryType.OVERTIME }
+        .map { it.duration }
+        .fold(Duration.ZERO, Duration::plus)
+}
+
+fun getTotalTimeOffDuration(): Duration {
+    return logs
+        .filter { it.type == EntryType.TIME_OFF }
+        .map { it.duration }
+        .fold(Duration.ZERO, Duration::plus)
+}
+
 
 fun deleteLog(log: Log): Boolean {
     logs.filter { it.id != log.id }