Too much to split into individual commits:

- updated theme
- changed title to budget name on all main tab pages
- various fixes to state handling

Signed-off-by: William Brawner <me@wbrawner.com>

android/src/main/java/com/wbrawner/budget/ui/MainActivity.kt

@@ -1,6 +1,7 @@
 package com.wbrawner.budget.ui
 
 import android.os.Bundle
+import androidx.activity.compose.BackHandler
 import androidx.activity.compose.setContent
 import androidx.appcompat.app.AppCompatActivity
 import androidx.compose.animation.ExperimentalAnimationApi
@@ -35,6 +36,7 @@ import com.wbrawner.budget.ui.recurringtransaction.RecurringTransactionDetailsSc
 import com.wbrawner.budget.ui.recurringtransaction.RecurringTransactionsScreen
 import com.wbrawner.budget.ui.transaction.TransactionDetailsScreen
 import com.wbrawner.budget.ui.transaction.TransactionsScreen
+import com.wbrawner.twigs.shared.Action
 import com.wbrawner.twigs.shared.Route
 import com.wbrawner.twigs.shared.Store
 import com.wbrawner.twigs.shared.budget.BudgetAction
@@ -63,6 +65,9 @@ class MainActivity : AppCompatActivity() {
             }
             TwigsApp {
                 val authViewModel: AuthViewModel = hiltViewModel()
+                BackHandler {
+                    store.dispatch(Action.Back)
+                }
                 NavHost(navController, state.initialRoute.path) {
                     composable(Route.Login.path) {
                         LoginScreen(store = store, viewModel = authViewModel)

android/src/main/java/com/wbrawner/budget/ui/OverviewScreen.kt

@@ -1,16 +1,35 @@
 package com.wbrawner.budget.ui
 
+import android.content.res.Configuration.UI_MODE_NIGHT_YES
+import androidx.compose.foundation.gestures.Orientation
+import androidx.compose.foundation.gestures.scrollable
 import androidx.compose.foundation.layout.Arrangement
+import androidx.compose.foundation.layout.Arrangement.Absolute.spacedBy
 import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.Spacer
 import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.height
 import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.rememberScrollState
+import androidx.compose.foundation.shape.RoundedCornerShape
+import androidx.compose.material3.Card
 import androidx.compose.material3.ExperimentalMaterial3Api
+import androidx.compose.material3.LinearProgressIndicator
+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.ui.Alignment
 import androidx.compose.ui.Modifier
+import androidx.compose.ui.draw.clip
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.tooling.preview.Preview
+import androidx.compose.ui.unit.dp
+import com.wbrawner.budget.ui.base.TwigsColors
+import com.wbrawner.budget.ui.base.TwigsTheme
 import com.wbrawner.budget.ui.transaction.toCurrencyString
 import com.wbrawner.twigs.shared.Store
 
@@ -18,22 +37,173 @@ import com.wbrawner.twigs.shared.Store
 @Composable
 fun OverviewScreen(store: Store) {
     val state by store.state.collectAsState()
-    TwigsScaffold(store = store, title = "Overview") { padding ->
-        val budget = state.selectedBudget?.let { id -> state.budgets?.first { it.id == id } }
+    val budget = state.selectedBudget?.let { id -> state.budgets?.first { it.id == id } }
+    TwigsScaffold(store = store, title = budget?.name ?: "Select a Budget") { padding ->
         Column(
             modifier = Modifier
                 .fillMaxSize()
-                .padding(padding),
-            horizontalAlignment = Alignment.CenterHorizontally,
-            verticalArrangement = Arrangement.Center
+                .padding(padding)
+                .scrollable(rememberScrollState(), orientation = Orientation.Vertical)
+                .padding(8.dp),
+            verticalArrangement = spacedBy(8.dp, alignment = Alignment.Top)
         ) {
-            budget?.let { budget ->
-                Text(budget.name)
-                Text(budget.description ?: "")
+            budget?.description?.let { description ->
+                if (description.isNotBlank()) {
+                    Card(modifier = Modifier.fillMaxWidth()) {
+                        Column(
+                            modifier = Modifier
+                                .fillMaxWidth()
+                                .padding(8.dp),
+                            verticalArrangement = spacedBy(8.dp)
+                        ) {
+                            Text(description, style = MaterialTheme.typography.titleMedium)
+                        }
+                    }
+                }
             }
-            Text("Cash Flow")
-            Text(state.budgetBalance?.toCurrencyString() ?: "-")
+            Card(modifier = Modifier.fillMaxWidth()) {
+                Row(
+                    modifier = Modifier
+                        .fillMaxWidth()
+                        .padding(8.dp),
+                    horizontalArrangement = Arrangement.SpaceBetween
+                ) {
+                    LabeledField(
+                        label = "Cash Flow",
+                        value = state.budgetBalance?.toCurrencyString() ?: "-"
+                    )
+                    LabeledField(
+                        label = "Transactions",
+                        value = state.transactions?.size?.toString() ?: "-"
+                    )
+                }
+            }
+            CashFlowChart(
+                expectedIncome = state.expectedIncome,
+                actualIncome = state.actualIncome,
+                expectedExpenses = state.expectedExpenses,
+                actualExpenses = state.actualExpenses
+            )
         }
     }
 }
 
+@Composable
+fun CashFlowChart(
+    expectedIncome: Long?,
+    actualIncome: Long?,
+    expectedExpenses: Long?,
+    actualExpenses: Long?,
+) {
+    val maxValue = listOfNotNull(expectedIncome, expectedExpenses, actualIncome, actualExpenses)
+        .maxOrNull()
+        ?.toFloat()
+        ?: 0f
+    Card(modifier = Modifier.fillMaxWidth()) {
+        Column(
+            modifier = Modifier
+                .fillMaxWidth()
+                .padding(8.dp),
+            verticalArrangement = spacedBy(8.dp)
+        ) {
+            CashFlowProgressBar(
+                label = "Expected Income",
+                value = expectedIncome,
+                maxValue = maxValue,
+                color = TwigsColors.DarkGreen,
+                trackColor = MaterialTheme.colorScheme.outline
+            )
+            CashFlowProgressBar(
+                label = "Actual Income",
+                value = actualIncome,
+                maxValue = maxValue,
+                color = TwigsColors.Green,
+                trackColor = MaterialTheme.colorScheme.outline
+            )
+            Spacer(modifier = Modifier.height(4.dp))
+            CashFlowProgressBar(
+                label = "Expected Expenses",
+                value = expectedExpenses,
+                maxValue = maxValue,
+                color = TwigsColors.DarkRed,
+                trackColor = MaterialTheme.colorScheme.outline
+            )
+            CashFlowProgressBar(
+                label = "Actual Expenses",
+                value = actualExpenses,
+                maxValue = maxValue,
+                color = TwigsColors.Red,
+                trackColor = MaterialTheme.colorScheme.outline
+            )
+        }
+    }
+}
+
+@Composable
+fun CashFlowProgressBar(
+    label: String,
+    value: Long?,
+    maxValue: Float,
+    color: Color,
+    trackColor: Color
+) {
+    Column(modifier = Modifier.fillMaxWidth(), verticalArrangement = spacedBy(4.dp)) {
+        Row(modifier = Modifier.fillMaxWidth(), horizontalArrangement = Arrangement.SpaceBetween) {
+            Text(label)
+            Text(value?.toCurrencyString() ?: "-")
+        }
+        value?.let {
+            LinearProgressIndicator(
+                modifier = Modifier
+                    .fillMaxWidth()
+                    .height(8.dp)
+                    .clip(RoundedCornerShape(4.dp)),
+                progress = it.toFloat() / maxValue,
+                color = color,
+                trackColor = trackColor,
+            )
+        } ?: LinearProgressIndicator(
+            modifier = Modifier
+                .fillMaxWidth()
+                .height(8.dp),
+            color = color,
+            trackColor = trackColor,
+        )
+    }
+}
+
+@Composable
+fun LabeledField(label: String, value: String) {
+    Column(
+        horizontalAlignment = Alignment.CenterHorizontally,
+        verticalArrangement = spacedBy(4.dp)
+    ) {
+        Text(text = label, style = MaterialTheme.typography.labelMedium)
+        Text(text = value, style = MaterialTheme.typography.bodyLarge)
+    }
+}
+
+@Preview
+@Preview(uiMode = UI_MODE_NIGHT_YES)
+@Composable
+fun CashFlowChart_Preview() {
+    TwigsTheme {
+        CashFlowChart(
+            expectedIncome = 100,
+            actualIncome = 50,
+            expectedExpenses = 80,
+            actualExpenses = 95
+        )
+    }
+}
+
+@Preview
+@Composable
+fun LabeledField_Preview() {
+    TwigsTheme {
+        LabeledField(
+            label = "Transactions",
+            value = "250"
+        )
+    }
+}

android/src/main/java/com/wbrawner/budget/ui/auth/LoginScreen.kt

@@ -20,6 +20,7 @@ import androidx.compose.foundation.verticalScroll
 import androidx.compose.material3.Button
 import androidx.compose.material3.CircularProgressIndicator
 import androidx.compose.material3.ExperimentalMaterial3Api
+import androidx.compose.material3.MaterialTheme
 import androidx.compose.material3.OutlinedButton
 import androidx.compose.material3.Text
 import androidx.compose.material3.TextButton
@@ -34,7 +35,6 @@ import androidx.compose.ui.ExperimentalComposeUiApi
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.focus.FocusRequester
 import androidx.compose.ui.focus.focusRequester
-import androidx.compose.ui.graphics.Color
 import androidx.compose.ui.input.key.Key
 import androidx.compose.ui.input.key.KeyEventType
 import androidx.compose.ui.input.key.isShiftPressed
@@ -140,7 +140,7 @@ fun LoginForm(
         )
         Text("Log in to manage your budgets")
         if (error.isNotBlank()) {
-            Text(text = error, color = Color.Red)
+            Text(text = error, color = MaterialTheme.colorScheme.error)
         }
         TextField(
             modifier = Modifier

android/src/main/java/com/wbrawner/budget/ui/base/Colors.kt

@@ -1,5 +1,7 @@
 package com.wbrawner.budget.ui.base
 
+import androidx.compose.foundation.isSystemInDarkTheme
+import androidx.compose.runtime.Composable
 import androidx.compose.ui.graphics.Color
 
 val Green300 = Color(0xFF81C784)
@@ -11,3 +13,82 @@ val Red500 = Color(0xFFF44336)
 val Red700 = Color(0xFFD32F2F)
 val Red900 = Color(0xFFB71C1C)
 
+object TwigsColors {
+    val Green
+        @Composable
+        get() = if (isSystemInDarkTheme()) Green300 else Green700
+    val DarkGreen
+        @Composable
+        get() = if (isSystemInDarkTheme()) Green500 else Green900
+    val Red
+        @Composable
+        get() = if (isSystemInDarkTheme()) Red300 else Red700
+    val DarkRed
+        @Composable
+        get() = if (isSystemInDarkTheme()) Red500 else Red900
+}
+
+val md_theme_light_primary = Color(0xFF006E26)
+val md_theme_light_onPrimary = Color(0xFFFFFFFF)
+val md_theme_light_primaryContainer = Color(0xFF6CFF82)
+val md_theme_light_onPrimaryContainer = Color(0xFF002106)
+val md_theme_light_secondary = Color(0xFF526350)
+val md_theme_light_onSecondary = Color(0xFFFFFFFF)
+val md_theme_light_secondaryContainer = Color(0xFFD5E8D0)
+val md_theme_light_onSecondaryContainer = Color(0xFF101F10)
+val md_theme_light_tertiary = Color(0xFF39656B)
+val md_theme_light_onTertiary = Color(0xFFFFFFFF)
+val md_theme_light_tertiaryContainer = Color(0xFFBCEBF2)
+val md_theme_light_onTertiaryContainer = Color(0xFF001F23)
+val md_theme_light_error = Color(0xFFBA1A1A)
+val md_theme_light_errorContainer = Color(0xFFFFDAD6)
+val md_theme_light_onError = Color(0xFFFFFFFF)
+val md_theme_light_onErrorContainer = Color(0xFF410002)
+val md_theme_light_background = Color(0xFFFCFDF7)
+val md_theme_light_onBackground = Color(0xFF1A1C19)
+val md_theme_light_surface = Color(0xFFFCFDF7)
+val md_theme_light_onSurface = Color(0xFF1A1C19)
+val md_theme_light_surfaceVariant = Color(0xFFDEE5D9)
+val md_theme_light_onSurfaceVariant = Color(0xFF424940)
+val md_theme_light_outline = Color(0xFF72796F)
+val md_theme_light_inverseOnSurface = Color(0xFFF0F1EB)
+val md_theme_light_inverseSurface = Color(0xFF2F312D)
+val md_theme_light_inversePrimary = Color(0xFF47E266)
+val md_theme_light_shadow = Color(0xFF000000)
+val md_theme_light_surfaceTint = Color(0xFF006E26)
+val md_theme_light_outlineVariant = Color(0xFFC2C9BD)
+val md_theme_light_scrim = Color(0xFF000000)
+
+val md_theme_dark_primary = Color(0xFF47E266)
+val md_theme_dark_onPrimary = Color(0xFF003910)
+val md_theme_dark_primaryContainer = Color(0xFF00531A)
+val md_theme_dark_onPrimaryContainer = Color(0xFF6CFF82)
+val md_theme_dark_secondary = Color(0xFFB9CCB4)
+val md_theme_dark_onSecondary = Color(0xFF243424)
+val md_theme_dark_secondaryContainer = Color(0xFF3A4B39)
+val md_theme_dark_onSecondaryContainer = Color(0xFFD5E8D0)
+val md_theme_dark_tertiary = Color(0xFFA1CED5)
+val md_theme_dark_onTertiary = Color(0xFF00363C)
+val md_theme_dark_tertiaryContainer = Color(0xFF1F4D53)
+val md_theme_dark_onTertiaryContainer = Color(0xFFBCEBF2)
+val md_theme_dark_error = Color(0xFFFFB4AB)
+val md_theme_dark_errorContainer = Color(0xFF93000A)
+val md_theme_dark_onError = Color(0xFF690005)
+val md_theme_dark_onErrorContainer = Color(0xFFFFDAD6)
+val md_theme_dark_background = Color(0xFF1A1C19)
+val md_theme_dark_onBackground = Color(0xFFE2E3DD)
+val md_theme_dark_surface = Color(0xFF1A1C19)
+val md_theme_dark_onSurface = Color(0xFFE2E3DD)
+val md_theme_dark_surfaceVariant = Color(0xFF424940)
+val md_theme_dark_onSurfaceVariant = Color(0xFFC2C9BD)
+val md_theme_dark_outline = Color(0xFF8C9388)
+val md_theme_dark_inverseOnSurface = Color(0xFF1A1C19)
+val md_theme_dark_inverseSurface = Color(0xFFE2E3DD)
+val md_theme_dark_inversePrimary = Color(0xFF006E26)
+val md_theme_dark_shadow = Color(0xFF000000)
+val md_theme_dark_surfaceTint = Color(0xFF47E266)
+val md_theme_dark_outlineVariant = Color(0xFF424940)
+val md_theme_dark_scrim = Color(0xFF000000)
+
+
+val seed = Color(0xFF30D158)

android/src/main/java/com/wbrawner/budget/ui/base/Theme.kt

@@ -4,36 +4,77 @@ import androidx.compose.foundation.isSystemInDarkTheme
 import androidx.compose.material3.MaterialTheme
 import androidx.compose.material3.Surface
 import androidx.compose.material3.darkColorScheme
-import androidx.compose.material3.dynamicDarkColorScheme
-import androidx.compose.material3.dynamicLightColorScheme
 import androidx.compose.material3.lightColorScheme
 import androidx.compose.runtime.Composable
-import androidx.compose.ui.graphics.Color
-import androidx.compose.ui.platform.LocalContext
 import androidx.compose.ui.text.font.Font
 import androidx.compose.ui.text.font.FontFamily
 import androidx.compose.ui.text.font.FontStyle
 import androidx.compose.ui.text.font.FontWeight
 import com.wbrawner.budget.R
 
-val lightColors = lightColorScheme(
-    primary = Green500,
-    primaryContainer = Green300,
-    secondary = Green700,
-    secondaryContainer = Green300,
-    background = Color.LightGray,
-    surface = Color.White,
-    surfaceVariant = Color.White
+private val LightColors = lightColorScheme(
+    primary = md_theme_light_primary,
+    onPrimary = md_theme_light_onPrimary,
+    primaryContainer = md_theme_light_primaryContainer,
+    onPrimaryContainer = md_theme_light_onPrimaryContainer,
+    secondary = md_theme_light_secondary,
+    onSecondary = md_theme_light_onSecondary,
+    secondaryContainer = md_theme_light_secondaryContainer,
+    onSecondaryContainer = md_theme_light_onSecondaryContainer,
+    tertiary = md_theme_light_tertiary,
+    onTertiary = md_theme_light_onTertiary,
+    tertiaryContainer = md_theme_light_tertiaryContainer,
+    onTertiaryContainer = md_theme_light_onTertiaryContainer,
+    error = md_theme_light_error,
+    errorContainer = md_theme_light_errorContainer,
+    onError = md_theme_light_onError,
+    onErrorContainer = md_theme_light_onErrorContainer,
+    background = md_theme_light_background,
+    onBackground = md_theme_light_onBackground,
+    surface = md_theme_light_surface,
+    onSurface = md_theme_light_onSurface,
+    surfaceVariant = md_theme_light_surfaceVariant,
+    onSurfaceVariant = md_theme_light_onSurfaceVariant,
+    outline = md_theme_light_outline,
+    inverseOnSurface = md_theme_light_inverseOnSurface,
+    inverseSurface = md_theme_light_inverseSurface,
+    inversePrimary = md_theme_light_inversePrimary,
+    surfaceTint = md_theme_light_surfaceTint,
+    outlineVariant = md_theme_light_outlineVariant,
+    scrim = md_theme_light_scrim,
 )
 
-val darkColors = darkColorScheme(
-    primary = Green300,
-    primaryContainer = Green500,
-    secondary = Green500,
-    secondaryContainer = Green700,
-    background = Color.Black,
-    surface = Color.Black,
-    surfaceVariant = Color.White.copy(alpha = 0.1f)
+
+private val DarkColors = darkColorScheme(
+    primary = md_theme_dark_primary,
+    onPrimary = md_theme_dark_onPrimary,
+    primaryContainer = md_theme_dark_primaryContainer,
+    onPrimaryContainer = md_theme_dark_onPrimaryContainer,
+    secondary = md_theme_dark_secondary,
+    onSecondary = md_theme_dark_onSecondary,
+    secondaryContainer = md_theme_dark_secondaryContainer,
+    onSecondaryContainer = md_theme_dark_onSecondaryContainer,
+    tertiary = md_theme_dark_tertiary,
+    onTertiary = md_theme_dark_onTertiary,
+    tertiaryContainer = md_theme_dark_tertiaryContainer,
+    onTertiaryContainer = md_theme_dark_onTertiaryContainer,
+    error = md_theme_dark_error,
+    errorContainer = md_theme_dark_errorContainer,
+    onError = md_theme_dark_onError,
+    onErrorContainer = md_theme_dark_onErrorContainer,
+    background = md_theme_dark_background,
+    onBackground = md_theme_dark_onBackground,
+    surface = md_theme_dark_surface,
+    onSurface = md_theme_dark_onSurface,
+    surfaceVariant = md_theme_dark_surfaceVariant,
+    onSurfaceVariant = md_theme_dark_onSurfaceVariant,
+    outline = md_theme_dark_outline,
+    inverseOnSurface = md_theme_dark_inverseOnSurface,
+    inverseSurface = md_theme_dark_inverseSurface,
+    inversePrimary = md_theme_dark_inversePrimary,
+    surfaceTint = md_theme_dark_surfaceTint,
+    outlineVariant = md_theme_dark_outlineVariant,
+    scrim = md_theme_dark_scrim,
 )
 
 val ubuntu = FontFamily(
@@ -48,9 +89,7 @@ val ubuntu = FontFamily(
 @Composable
 fun TwigsTheme(darkMode: Boolean = isSystemInDarkTheme(), content: @Composable () -> Unit) {
     MaterialTheme(
-        colorScheme = if (darkMode) dynamicDarkColorScheme(LocalContext.current) else dynamicLightColorScheme(
-            LocalContext.current
-        ),
+        colorScheme = if (darkMode) DarkColors else LightColors,
         typography = MaterialTheme.typography.copy(
             displayLarge = MaterialTheme.typography.displayLarge.copy(fontFamily = ubuntu),
             displayMedium = MaterialTheme.typography.displayMedium.copy(fontFamily = ubuntu),

android/src/main/java/com/wbrawner/budget/ui/category/CategoriesScreen.kt

@@ -2,13 +2,12 @@ package com.wbrawner.budget.ui.category
 
 import android.content.res.Configuration.UI_MODE_NIGHT_NO
 import android.content.res.Configuration.UI_MODE_NIGHT_YES
-import android.util.Log
 import androidx.compose.foundation.clickable
 import androidx.compose.foundation.layout.*
 import androidx.compose.foundation.layout.Arrangement.Absolute.spacedBy
-import androidx.compose.foundation.lazy.LazyColumn
-import androidx.compose.foundation.lazy.items
-import androidx.compose.foundation.lazy.rememberLazyListState
+import androidx.compose.foundation.rememberScrollState
+import androidx.compose.foundation.shape.RoundedCornerShape
+import androidx.compose.foundation.verticalScroll
 import androidx.compose.material.CircularProgressIndicator
 import androidx.compose.material3.*
 import androidx.compose.runtime.Composable
@@ -17,14 +16,19 @@ import androidx.compose.runtime.getValue
 import androidx.compose.runtime.remember
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
+import androidx.compose.ui.draw.clip
 import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.text.font.FontWeight
 import androidx.compose.ui.tooling.preview.Preview
 import androidx.compose.ui.unit.dp
 import com.wbrawner.budget.ui.TwigsScaffold
 import com.wbrawner.budget.ui.base.TwigsApp
+import com.wbrawner.budget.ui.transaction.toCurrencyString
 import com.wbrawner.twigs.shared.Store
 import com.wbrawner.twigs.shared.category.Category
 import com.wbrawner.twigs.shared.category.CategoryAction
+import com.wbrawner.twigs.shared.category.groupByType
+import com.wbrawner.twigs.shared.recurringtransaction.capitalizedName
 import java.util.*
 import kotlin.math.abs
 import kotlin.math.max
@@ -32,25 +36,37 @@ import kotlin.math.max
 @OptIn(ExperimentalMaterial3Api::class)
 @Composable
 fun CategoriesScreen(store: Store) {
-    val scrollState = rememberLazyListState()
+    val state by store.state.collectAsState()
+    val budget = state.selectedBudget?.let { id -> state.budgets?.first { it.id == id } }
     TwigsScaffold(
         store = store,
-        title = "Categories",
+        title = budget?.name ?: "Select a Budget",
         onClickFab = {
             store.dispatch(CategoryAction.NewCategoryClicked)
         }
     ) {
-        val state by store.state.collectAsState()
         state.categories?.let { categories ->
-            LazyColumn(
+            val categoryGroups = categories.groupByType()
+            Column(
                 modifier = Modifier
-                    .fillMaxSize()
-                    .padding(it),
-                state = scrollState
+                    .fillMaxWidth()
+                    .padding(it)
+                    .verticalScroll(rememberScrollState())
+                    .padding(start = 8.dp, end = 8.dp, bottom = 8.dp)
             ) {
-                items(categories, key = { c -> c.id!! }) { category ->
-                    CategoryListItem(category, state.categoryBalances?.get(category.id!!)) {
-                        store.dispatch(CategoryAction.SelectCategory(category.id))
+                categoryGroups.toSortedMap().forEach { (group, c) ->
+                    Text(
+                        modifier = Modifier.padding(8.dp),
+                        text = group.capitalizedName,
+                        style = MaterialTheme.typography.titleSmall,
+                        fontWeight = FontWeight.Bold
+                    )
+                    Card {
+                        c.forEach { category ->
+                            CategoryListItem(category, state.categoryBalances?.get(category.id!!)) {
+                                store.dispatch(CategoryAction.SelectCategory(category.id))
+                            }
+                        }
                     }
                 }
             }
@@ -77,20 +93,31 @@ fun CategoryListItem(category: Category, balance: Long?, onClick: (Category) ->
             modifier = Modifier.weight(1f),
             verticalArrangement = spacedBy(4.dp)
         ) {
-            Text(category.title, style = MaterialTheme.typography.bodyLarge)
+            Row(
+                modifier = Modifier.fillMaxWidth(),
+                horizontalArrangement = Arrangement.SpaceBetween,
+                verticalAlignment = Alignment.CenterVertically
+            ) {
+                Text(category.title, style = MaterialTheme.typography.bodyLarge)
+                balance?.let {
+                    Text(
+                        (category.amount - abs(it)).toCurrencyString() + " remaining",
+                        style = MaterialTheme.typography.bodySmall
+                    )
+                }
+            }
             Spacer(modifier = Modifier.height(8.dp))
             balance?.let {
                 val denominator = remember { max(abs(it), abs(category.amount)).toFloat() }
                 val progress =
                     remember { if (denominator == 0f) 0f else abs(it).toFloat() / denominator }
-                Log.d(
-                    "Twigs",
-                    "Category ${category.title} amount: $denominator balance: $it progress: $progress"
-                )
                 LinearProgressIndicator(
-                    modifier = Modifier.fillMaxWidth(),
+                    modifier = Modifier
+                        .fillMaxWidth()
+                        .clip(RoundedCornerShape(4.dp)),
                     progress = progress,
-                    color = if (category.expense) Color.Red else Color.Green
+                    color = if (category.expense) MaterialTheme.colorScheme.error else MaterialTheme.colorScheme.primary,
+                    trackColor = Color.LightGray
                 )
             } ?: LinearProgressIndicator(modifier = Modifier.fillMaxWidth())
         }

android/src/main/java/com/wbrawner/budget/ui/category/CategoryForm.kt

@@ -70,6 +70,7 @@ fun CategoryForm(store: Store) {
     val (description, setDescription) = remember { mutableStateOf(category.description ?: "") }
     val (amount, setAmount) = remember { mutableStateOf(category.amount.toDecimalString()) }
     val (expense, setExpense) = remember { mutableStateOf(category.expense) }
+    val (archived, setArchived) = remember { mutableStateOf(category.archived) }
     Scaffold(
         topBar = {
             TopAppBar(
@@ -94,6 +95,8 @@ fun CategoryForm(store: Store) {
             setAmount = setAmount,
             expense = expense,
             setExpense = setExpense,
+            archived = archived,
+            setArchived = setArchived
         ) {
             store.dispatch(
                 category.id?.let { id ->
@@ -103,12 +106,14 @@ fun CategoryForm(store: Store) {
                         description = description,
                         amount = (amount.toDouble() * 100).toLong(),
                         expense = expense,
+                        archived = archived
                     )
                 } ?: CategoryAction.CreateCategory(
                     title = title,
                     description = description,
                     amount = (amount.toDouble() * 100).toLong(),
                     expense = expense,
+                    archived = archived
                 )
             )
         }
@@ -127,6 +132,8 @@ fun CategoryForm(
     setAmount: (String) -> Unit,
     expense: Boolean,
     setExpense: (Boolean) -> Unit,
+    archived: Boolean,
+    setArchived: (Boolean) -> Unit,
     save: () -> Unit
 ) {
     val scrollState = rememberScrollState()
@@ -239,6 +246,15 @@ fun CategoryForm(
                 Text(text = "Income")
             }
         }
+        Row(
+            modifier = Modifier
+                .fillMaxWidth()
+                .clickable { setArchived(!archived) },
+            verticalAlignment = Alignment.CenterVertically
+        ) {
+            Checkbox(checked = archived, onCheckedChange = { setArchived(!archived) })
+            Text("Archived")
+        }
         Button(
             modifier = Modifier.fillMaxWidth(),
             onClick = save

android/src/main/java/com/wbrawner/budget/ui/recurringtransaction/RecurringTransactionDetailsScreen.kt

@@ -17,7 +17,6 @@ import androidx.compose.runtime.getValue
 import androidx.compose.runtime.remember
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
-import androidx.compose.ui.graphics.Color
 import androidx.compose.ui.platform.LocalContext
 import androidx.compose.ui.tooling.preview.Preview
 import androidx.compose.ui.unit.dp
@@ -109,7 +108,7 @@ fun RecurringTransactionDetails(
             Text(
                 text = transaction.amount.toCurrencyString(),
                 style = MaterialTheme.typography.headlineSmall,
-                color = if (transaction.expense) Color.Red else Color.Green
+                color = if (transaction.expense) MaterialTheme.colorScheme.error else MaterialTheme.colorScheme.primary,
             )
         }
         LabeledField("Description", transaction.description ?: "")

android/src/main/java/com/wbrawner/budget/ui/recurringtransaction/RecurringTransactionsScreen.kt

@@ -5,7 +5,8 @@ import android.content.res.Configuration.UI_MODE_NIGHT_YES
 import androidx.compose.foundation.clickable
 import androidx.compose.foundation.layout.*
 import androidx.compose.foundation.layout.Arrangement.Absolute.spacedBy
-import androidx.compose.foundation.lazy.LazyColumn
+import androidx.compose.foundation.rememberScrollState
+import androidx.compose.foundation.verticalScroll
 import androidx.compose.material.CircularProgressIndicator
 import androidx.compose.material3.Card
 import androidx.compose.material3.ExperimentalMaterial3Api
@@ -17,7 +18,6 @@ import androidx.compose.runtime.getValue
 import androidx.compose.runtime.remember
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
-import androidx.compose.ui.graphics.Color
 import androidx.compose.ui.text.font.FontWeight
 import androidx.compose.ui.tooling.preview.Preview
 import androidx.compose.ui.unit.dp
@@ -34,41 +34,40 @@ import kotlinx.datetime.Clock
 @OptIn(ExperimentalMaterial3Api::class)
 @Composable
 fun RecurringTransactionsScreen(store: Store) {
+    val state by store.state.collectAsState()
+    val budget = state.selectedBudget?.let { id -> state.budgets?.first { it.id == id } }
     TwigsScaffold(
         store = store,
-        title = "Recurring Transactions",
+        title = budget?.name ?: "Select a Budget",
         onClickFab = {
             store.dispatch(RecurringTransactionAction.NewRecurringTransactionClicked)
         }
     ) {
-        val state by store.state.collectAsState()
         state.recurringTransactions?.let { transactions ->
-            val transactionGroups = remember { transactions.groupByStatus() }
-            LazyColumn(
+            val transactionGroups =
+                remember(state.editingRecurringTransaction) { transactions.groupByStatus() }
+            Column(
                 modifier = Modifier
                     .fillMaxSize()
                     .padding(it)
-                    .padding(horizontal = 8.dp)
+                    .verticalScroll(rememberScrollState())
+                    .padding(start = 8.dp, end = 8.dp, bottom = 8.dp)
             ) {
                 transactionGroups.forEach { (title, transactions) ->
-                    item(title) {
-                        Text(
-                            modifier = Modifier.padding(8.dp),
-                            text = title,
-                            style = MaterialTheme.typography.titleMedium,
-                            fontWeight = FontWeight.Bold
-                        )
-                    }
-                    item(transactions) {
-                        Card {
-                            transactions.forEach { transaction ->
-                                RecurringTransactionListItem(transaction) {
-                                    store.dispatch(
-                                        RecurringTransactionAction.SelectRecurringTransaction(
-                                            transaction.id
-                                        )
+                    Text(
+                        modifier = Modifier.padding(8.dp),
+                        text = title,
+                        style = MaterialTheme.typography.titleSmall,
+                        fontWeight = FontWeight.Bold
+                    )
+                    Card {
+                        transactions.forEach { transaction ->
+                            RecurringTransactionListItem(transaction) {
+                                store.dispatch(
+                                    RecurringTransactionAction.SelectRecurringTransaction(
+                                        transaction.id
                                     )
-                                }
+                                )
                             }
                         }
                     }
@@ -111,7 +110,7 @@ fun RecurringTransactionListItem(
         }
         Text(
             transaction.amount.toCurrencyString(),
-            color = if (transaction.expense) Color.Red else Color.Green,
+            color = if (transaction.expense) MaterialTheme.colorScheme.error else MaterialTheme.colorScheme.primary,
         )
     }
 }

android/src/main/java/com/wbrawner/budget/ui/transaction/TransactionDetailsScreen.kt

@@ -9,15 +9,16 @@ import androidx.compose.foundation.layout.Arrangement.Absolute.spacedBy
 import androidx.compose.foundation.rememberScrollState
 import androidx.compose.material.icons.Icons
 import androidx.compose.material.icons.filled.ArrowBack
+import androidx.compose.material.icons.filled.Delete
 import androidx.compose.material.icons.filled.Edit
 import androidx.compose.material3.*
 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
 import androidx.compose.ui.tooling.preview.Preview
 import androidx.compose.ui.unit.dp
 import com.wbrawner.budget.ui.TwigsScaffold
@@ -46,6 +47,7 @@ fun TransactionDetailsScreen(store: Store) {
     }
     val category = state.categories?.firstOrNull { it.id == transaction.categoryId }
     val budget = state.budgets!!.first { it.id == transaction.budgetId }
+    val (confirmDeletionShown, setConfirmDeletionShown) = remember { mutableStateOf(false) }
 
     TwigsScaffold(
         store = store,
@@ -59,6 +61,9 @@ fun TransactionDetailsScreen(store: Store) {
             IconButton({ store.dispatch(TransactionAction.EditTransaction(requireNotNull(transaction.id))) }) {
                 Icon(Icons.Default.Edit, "Edit")
             }
+            IconButton({ setConfirmDeletionShown(true) }) {
+                Icon(Icons.Default.Delete, "Delete")
+            }
         }
     ) { padding ->
         TransactionDetails(
@@ -71,6 +76,35 @@ fun TransactionDetailsScreen(store: Store) {
         if (state.editingTransaction) {
             TransactionFormDialog(store = store)
         }
+        if (confirmDeletionShown) {
+            AlertDialog(
+                text = {
+                    Text("Are you sure you want to delete this transaction?")
+                },
+                onDismissRequest = { setConfirmDeletionShown(false) },
+                confirmButton = {
+                    TextButton(onClick = {
+                        setConfirmDeletionShown(false)
+                        store.dispatch(
+                            TransactionAction.DeleteTransaction(
+                                requireNotNull(
+                                    transaction.id
+                                )
+                            )
+                        )
+                    }) {
+                        Text("Delete")
+                    }
+                },
+                dismissButton = {
+                    TextButton(onClick = {
+                        setConfirmDeletionShown(false)
+                    }) {
+                        Text("Cancel")
+                    }
+                }
+            )
+        }
     }
 }
 
@@ -107,7 +141,7 @@ fun TransactionDetails(
             Text(
                 text = transaction.amount.toCurrencyString(),
                 style = MaterialTheme.typography.headlineSmall,
-                color = if (transaction.expense) Color.Red else Color.Green
+                color = if (transaction.expense) MaterialTheme.colorScheme.error else MaterialTheme.colorScheme.primary
             )
         }
         LabeledField("Description", transaction.description ?: "")

android/src/main/java/com/wbrawner/budget/ui/transaction/TransactionForm.kt

@@ -73,13 +73,18 @@ fun TransactionForm(store: Store) {
             state.transactions?.first { it.id == state.selectedTransaction } ?: defaultTransaction
         }
     }
-    val (title, setTitle) = remember { mutableStateOf(transaction.title) }
-    val (description, setDescription) = remember { mutableStateOf(transaction.description ?: "") }
-    val (date, setDate) = remember { mutableStateOf(transaction.date) }
-    val (amount, setAmount) = remember { mutableStateOf(transaction.amount.toDecimalString()) }
-    val (expense, setExpense) = remember { mutableStateOf(transaction.expense) }
-    val budget = remember { state.budgets!!.first { it.id == transaction.budgetId } }
-    val (category, setCategory) = remember { mutableStateOf(transaction.categoryId?.let { categoryId -> state.categories?.firstOrNull { it.id == categoryId } }) }
+    val (title, setTitle) = remember(state.editingTransaction) { mutableStateOf(transaction.title) }
+    val (description, setDescription) = remember(state.editingTransaction) {
+        mutableStateOf(
+            transaction.description ?: ""
+        )
+    }
+    val (date, setDate) = remember(state.editingTransaction) { mutableStateOf(transaction.date) }
+    val (amount, setAmount) = remember(state.editingTransaction) { mutableStateOf(transaction.amount.toDecimalString()) }
+    val (expense, setExpense) = remember(state.editingTransaction) { mutableStateOf(transaction.expense) }
+    val budget =
+        remember(state.editingTransaction) { state.budgets!!.first { it.id == transaction.budgetId } }
+    val (category, setCategory) = remember(state.editingTransaction) { mutableStateOf(transaction.categoryId?.let { categoryId -> state.categories?.firstOrNull { it.id == categoryId } }) }
     Scaffold(
         topBar = {
             TopAppBar(

android/src/main/java/com/wbrawner/budget/ui/transaction/TransactionsScreen.kt

@@ -5,7 +5,8 @@ import android.content.res.Configuration.UI_MODE_NIGHT_YES
 import androidx.compose.foundation.clickable
 import androidx.compose.foundation.layout.*
 import androidx.compose.foundation.layout.Arrangement.Absolute.spacedBy
-import androidx.compose.foundation.lazy.LazyColumn
+import androidx.compose.foundation.rememberScrollState
+import androidx.compose.foundation.verticalScroll
 import androidx.compose.material.CircularProgressIndicator
 import androidx.compose.material3.Card
 import androidx.compose.material3.ExperimentalMaterial3Api
@@ -17,7 +18,6 @@ import androidx.compose.runtime.getValue
 import androidx.compose.runtime.remember
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
-import androidx.compose.ui.graphics.Color
 import androidx.compose.ui.platform.LocalContext
 import androidx.compose.ui.text.font.FontWeight
 import androidx.compose.ui.tooling.preview.Preview
@@ -36,37 +36,36 @@ import java.text.NumberFormat
 @OptIn(ExperimentalMaterial3Api::class)
 @Composable
 fun TransactionsScreen(store: Store) {
+    val state by store.state.collectAsState()
+    val budget = state.selectedBudget?.let { id -> state.budgets?.first { it.id == id } }
     TwigsScaffold(
         store = store,
-        title = "Transactions",
+        title = budget?.name ?: "Select a Budget",
         onClickFab = {
             store.dispatch(TransactionAction.NewTransactionClicked)
         }
     ) {
-        val state by store.state.collectAsState()
         state.transactions?.let { transactions ->
-            val transactionGroups = remember { transactions.groupByDate() }
-            LazyColumn(
+            val transactionGroups =
+                remember(state.editingTransaction) { transactions.groupByDate() }
+            Column(
                 modifier = Modifier
                     .fillMaxSize()
                     .padding(it)
-                    .padding(horizontal = 8.dp)
+                    .verticalScroll(rememberScrollState())
+                    .padding(start = 8.dp, end = 8.dp, bottom = 8.dp)
             ) {
                 transactionGroups.forEach { (timestamp, transactions) ->
-                    item(timestamp) {
-                        Text(
-                            modifier = Modifier.padding(8.dp),
-                            text = timestamp.toInstant().format(LocalContext.current),
-                            style = MaterialTheme.typography.titleMedium,
-                            fontWeight = FontWeight.Bold
-                        )
-                    }
-                    item(transactions) {
-                        Card {
-                            transactions.forEach { transaction ->
-                                TransactionListItem(transaction) {
-                                    store.dispatch(TransactionAction.SelectTransaction(transaction.id))
-                                }
+                    Text(
+                        modifier = Modifier.padding(8.dp),
+                        text = timestamp.toInstant().format(LocalContext.current),
+                        style = MaterialTheme.typography.titleSmall,
+                        fontWeight = FontWeight.Bold
+                    )
+                    Card {
+                        transactions.forEach { transaction ->
+                            TransactionListItem(transaction) {
+                                store.dispatch(TransactionAction.SelectTransaction(transaction.id))
                             }
                         }
                     }
@@ -106,7 +105,7 @@ fun TransactionListItem(transaction: Transaction, onClick: (Transaction) -> Unit
         }
         Text(
             transaction.amount.toCurrencyString(),
-            color = if (transaction.expense) Color.Red else Color.Green,
+            color = if (transaction.expense) MaterialTheme.colorScheme.error else MaterialTheme.colorScheme.primary,
         )
     }
 }

shared/src/commonMain/kotlin/com/wbrawner/twigs/shared/Store.kt

@@ -12,6 +12,7 @@ import kotlinx.coroutines.flow.MutableSharedFlow
 import kotlinx.coroutines.flow.MutableStateFlow
 import kotlinx.coroutines.flow.StateFlow
 import kotlinx.coroutines.launch
+import kotlinx.datetime.Instant
 
 sealed class Route(val path: String) {
     object Welcome : Route("welcome")
@@ -36,6 +37,10 @@ data class State(
     val user: User? = null,
     val budgets: List<Budget>? = null,
     val budgetBalance: Long? = null,
+    val actualIncome: Long? = null,
+    val actualExpenses: Long? = null,
+    val expectedIncome: Long? = null,
+    val expectedExpenses: Long? = null,
     val selectedBudget: String? = null,
     val editingBudget: Boolean = false,
     val categories: List<Category>? = null,
@@ -46,6 +51,8 @@ data class State(
     val selectedTransaction: String? = null,
     val selectedTransactionCreatedBy: User? = null,
     val editingTransaction: Boolean = false,
+    val from: Instant = startOfMonth(),
+    val to: Instant = endOfMonth(),
     val recurringTransactions: List<RecurringTransaction>? = null,
     val selectedRecurringTransaction: String? = null,
     val selectedRecurringTransactionCreatedBy: User? = null,
@@ -53,11 +60,7 @@ data class State(
     val loading: Boolean = false,
     val route: Route = Route.Login,
     val initialRoute: Route = Route.Login
-) {
-    override fun toString(): String {
-        return "State(recurringTransactionsSize=${recurringTransactions?.size}, route=$route)"
-    }
-}
+)
 
 interface Action {
     object AboutClicked : Action

shared/src/commonMain/kotlin/com/wbrawner/twigs/shared/budget/BudgetAction.kt

@@ -7,6 +7,7 @@ import com.wbrawner.twigs.shared.Reducer
 import com.wbrawner.twigs.shared.Route
 import com.wbrawner.twigs.shared.State
 import com.wbrawner.twigs.shared.replace
+import com.wbrawner.twigs.shared.transaction.TransactionAction
 import com.wbrawner.twigs.shared.user.ConfigAction
 import com.wbrawner.twigs.shared.user.UserPermission
 import kotlinx.coroutines.launch
@@ -127,6 +128,17 @@ class BudgetReducer(
 
         is BudgetAction.BudgetSelected -> state().copy(selectedBudget = action.id)
 
+        is TransactionAction.LoadTransactionsSuccess -> {
+            val balance = action.transactions.sumOf {
+                if (it.expense) {
+                    it.amount * -1
+                } else {
+                    it.amount
+                }
+            }
+            state().copy(budgetBalance = balance)
+        }
+
 //        is BudgetAction.UpdateBudget -> state.copy(loading = true).also {
 //            dispatch(action.async())
 //        }

shared/src/commonMain/kotlin/com/wbrawner/twigs/shared/budget/BudgetRepository.kt

@@ -2,9 +2,10 @@ package com.wbrawner.twigs.shared.budget
 
 import com.wbrawner.twigs.shared.Repository
 import com.wbrawner.twigs.shared.network.APIService
+import kotlinx.datetime.Instant
 
 interface BudgetRepository : Repository<Budget> {
-    suspend fun getBalance(id: String): Long
+    suspend fun getBalance(id: String, from: Instant, to: Instant): Long
 }
 
 class NetworkBudgetRepository(private val apiService: APIService) : BudgetRepository {
@@ -19,6 +20,6 @@ class NetworkBudgetRepository(private val apiService: APIService) : BudgetReposi
 
     override suspend fun delete(id: String) = apiService.deleteBudget(id)
 
-    override suspend fun getBalance(id: String): Long =
-        apiService.sumTransactions(budgetId = id).balance
+    override suspend fun getBalance(id: String, from: Instant, to: Instant): Long =
+        apiService.sumTransactions(budgetId = id, from = from, to = to).balance
 }

shared/src/commonMain/kotlin/com/wbrawner/twigs/shared/category/CategoryAction.kt

@@ -6,13 +6,16 @@ import com.wbrawner.twigs.shared.Route
 import com.wbrawner.twigs.shared.State
 import com.wbrawner.twigs.shared.budget.BudgetAction
 import com.wbrawner.twigs.shared.replace
+import com.wbrawner.twigs.shared.transaction.TransactionAction
 import kotlinx.coroutines.launch
+import kotlin.math.abs
 
 sealed interface CategoryAction : Action {
     object CategoriesClicked : CategoryAction
     data class BalancesCalculated(
-        val budgetBalance: Long,
-        val categoryBalances: Map<String, Long>
+        val categoryBalances: Map<String, Long>,
+        val actualIncome: Long,
+        val actualExpenses: Long
     ) : CategoryAction
 
     data class LoadCategoriesSuccess(val categories: List<Category>) : CategoryAction
@@ -24,7 +27,8 @@ sealed interface CategoryAction : Action {
         val title: String,
         val description: String? = null,
         val amount: Long,
-        val expense: Boolean
+        val expense: Boolean,
+        val archived: Boolean,
     ) : CategoryAction
 
     data class SaveCategorySuccess(val category: Category) : CategoryAction
@@ -35,6 +39,7 @@ sealed interface CategoryAction : Action {
         val description: String? = null,
         val amount: Long,
         val expense: Boolean,
+        val archived: Boolean,
         val error: Exception
     ) : CategoryAction
 
@@ -48,6 +53,7 @@ sealed interface CategoryAction : Action {
         val description: String? = null,
         val amount: Long,
         val expense: Boolean,
+        val archived: Boolean,
     ) : CategoryAction
 
     data class DeleteCategory(val id: String) : CategoryAction
@@ -78,7 +84,14 @@ class CategoryReducer(private val categoryRepository: CategoryRepository) : Redu
                     dispatch(CategoryAction.LoadCategoriesFailed(e))
                 }
             }
-            state().copy(categories = null)
+            state().copy(
+                categories = null,
+                selectedCategory = null,
+                editingCategory = false,
+                categoryBalances = null,
+                actualIncome = null,
+                actualExpenses = null
+            )
         }
 
         is CategoryAction.SelectCategory -> state().copy(
@@ -86,23 +99,69 @@ class CategoryReducer(private val categoryRepository: CategoryRepository) : Redu
             route = Route.Categories(action.id)
         ).also { newState -> println("Category selected state update: $newState") }
 
-        is CategoryAction.LoadCategoriesSuccess -> state().copy(categories = action.categories)
+        is CategoryAction.LoadCategoriesSuccess -> {
+            var expectedIncome = 0L
+            var expectedExpenses = 0L
+            action.categories.forEach { category ->
+                if (category.archived) return@forEach
+                if (category.expense) {
+                    expectedExpenses += category.amount
+                } else {
+                    expectedIncome += category.amount
+                }
+            }
+            val currentState = state()
+            val defaultCategoryBalances =
+                action.categories.associate { it.id!! to 0L }.toMutableMap()
+            val categoryBalances: Map<String, Long>? = currentState.categoryBalances?.let {
+                defaultCategoryBalances.apply {
+                    putAll(it)
+                }
+            }
+            state().copy(
+                categories = action.categories,
+                categoryBalances = categoryBalances,
+                expectedExpenses = expectedExpenses,
+                expectedIncome = expectedIncome
+            )
+        }
+
+        is TransactionAction.LoadTransactionsSuccess -> state()
             .also {
                 launch {
-                    var budgetBalance = 0L
-                    val categoryBalances = mutableMapOf<String, Long>()
-                    action.categories.forEach { category ->
-                        val balance = categoryRepository.getBalance(category.id!!)
-                        categoryBalances[category.id] = balance
-                        budgetBalance += balance
+                    val categoryBalances =
+                        it.categories?.associate { it.id!! to 0L }?.toMutableMap()
+                            ?: mutableMapOf()
+                    var actualIncome = 0L
+                    var actualExpenses = 0L
+                    action.transactions.forEach { transaction ->
+                        val category = transaction.categoryId
+                        var balance = category?.let { categoryBalances[it] ?: 0L } ?: 0L
+                        if (transaction.expense) {
+                            balance -= transaction.amount
+                            actualExpenses += abs(transaction.amount)
+                        } else {
+                            balance += transaction.amount
+                            actualIncome += transaction.amount
+                        }
+                        category?.let {
+                            categoryBalances[it] = balance
+                        }
                     }
-                    dispatch(CategoryAction.BalancesCalculated(budgetBalance, categoryBalances))
+                    dispatch(
+                        CategoryAction.BalancesCalculated(
+                            categoryBalances,
+                            actualIncome = actualIncome,
+                            actualExpenses = actualExpenses
+                        )
+                    )
                 }
             }
 
         is CategoryAction.BalancesCalculated -> state().copy(
-            budgetBalance = action.budgetBalance,
-            categoryBalances = action.categoryBalances
+            categoryBalances = action.categoryBalances,
+            actualExpenses = action.actualExpenses,
+            actualIncome = action.actualIncome
         )
 
         is CategoryAction.CancelEditCategory -> state().copy(editingCategory = false)
@@ -163,3 +222,26 @@ class CategoryReducer(private val categoryRepository: CategoryRepository) : Redu
         else -> state()
     }
 }
+
+enum class CategoryGroup {
+    INCOME,
+    EXPENSE,
+    ARCHIVED
+}
+
+val Category.group: CategoryGroup
+    get() = when {
+        archived -> CategoryGroup.ARCHIVED
+        expense -> CategoryGroup.EXPENSE
+        else -> CategoryGroup.INCOME
+    }
+
+fun List<Category>.groupByType(): Map<CategoryGroup, List<Category>> {
+    val groups = mutableMapOf<CategoryGroup, List<Category>>()
+    forEach { category ->
+        val list = groups[category.group]?.toMutableList() ?: mutableListOf()
+        list.add(category)
+        groups[category.group] = list.sortedBy { it.title }
+    }
+    return groups
+}

shared/src/commonMain/kotlin/com/wbrawner/twigs/shared/category/CategoryRepository.kt

@@ -2,10 +2,11 @@ package com.wbrawner.twigs.shared.category
 
 import com.wbrawner.twigs.shared.Repository
 import com.wbrawner.twigs.shared.network.APIService
+import kotlinx.datetime.Instant
 
 interface CategoryRepository : Repository<Category> {
     suspend fun findAll(budgetIds: Array<String>? = null): List<Category>
-    suspend fun getBalance(id: String): Long
+    suspend fun getBalance(id: String, from: Instant, to: Instant): Long
 }
 
 class NetworkCategoryRepository(private val apiService: APIService) : CategoryRepository {
@@ -14,8 +15,8 @@ class NetworkCategoryRepository(private val apiService: APIService) : CategoryRe
 
     override suspend fun findAll(): List<Category> = findAll(null)
 
-    override suspend fun getBalance(id: String): Long =
-        apiService.sumTransactions(categoryId = id).balance
+    override suspend fun getBalance(id: String, from: Instant, to: Instant): Long =
+        apiService.sumTransactions(categoryId = id, from = from, to = to).balance
 
     override suspend fun create(newItem: Category): Category = apiService.newCategory(newItem)
 

shared/src/commonMain/kotlin/com/wbrawner/twigs/shared/network/APIService.kt

@@ -14,6 +14,7 @@ import io.ktor.client.engine.HttpClientEngineConfig
 import io.ktor.client.plugins.HttpTimeout
 import io.ktor.client.plugins.contentnegotiation.ContentNegotiation
 import io.ktor.serialization.kotlinx.json.json
+import kotlinx.datetime.Instant
 import kotlinx.serialization.json.Json
 
 const val BASE_PATH = "/api"
@@ -40,7 +41,7 @@ interface APIService {
 
     suspend fun getCategories(
         budgetIds: Array<String>? = null,
-        archived: Boolean? = false,
+        archived: Boolean? = null,
         count: Int? = null,
         page: Int? = null,
     ): List<Category>
@@ -74,10 +75,10 @@ interface APIService {
     suspend fun deleteRecurringTransaction(id: String)
 
     suspend fun getTransactions(
+        from: Instant,
+        to: Instant,
         budgetIds: List<String>? = null,
         categoryIds: List<String>? = null,
-        from: String? = null,
-        to: String? = null,
         count: Int? = null,
         page: Int? = null
     ): List<Transaction>
@@ -85,8 +86,10 @@ interface APIService {
     suspend fun getTransaction(id: String): Transaction
 
     suspend fun sumTransactions(
+        from: Instant,
+        to: Instant,
         budgetId: String? = null,
-        categoryId: String? = null
+        categoryId: String? = null,
     ): BalanceResponse
 
     suspend fun newTransaction(transaction: Transaction): Transaction
@@ -122,7 +125,7 @@ interface APIService {
     companion object
 }
 
-fun <T: HttpClientEngineConfig> HttpClientConfig<T>.commonConfig() {
+fun <T : HttpClientEngineConfig> HttpClientConfig<T>.commonConfig() {
     install(ContentNegotiation) {
         json(Json {
             ignoreUnknownKeys = true

shared/src/commonMain/kotlin/com/wbrawner/twigs/shared/network/KtorAPIService.kt

@@ -21,6 +21,7 @@ import io.ktor.http.HttpMethod
 import io.ktor.http.URLBuilder
 import io.ktor.http.contentType
 import io.ktor.http.path
+import kotlinx.datetime.Instant
 
 class KtorAPIService(
     private val client: HttpClient
@@ -84,10 +85,10 @@ class KtorAPIService(
     )
 
     override suspend fun getTransactions(
+        from: Instant,
+        to: Instant,
         budgetIds: List<String>?,
         categoryIds: List<String>?,
-        from: String?,
-        to: String?,
         count: Int?,
         page: Int?
     ): List<Transaction> = request(
@@ -95,8 +96,8 @@ class KtorAPIService(
         queryParams = listOf(
             "budgetIds" to budgetIds,
             "categoryIds" to categoryIds,
-            "from" to from,
-            "to" to to,
+            "from" to from.toString(),
+            "to" to to.toString(),
             "count" to count,
             "page" to page,
         )
@@ -104,12 +105,19 @@ class KtorAPIService(
 
     override suspend fun getTransaction(id: String): Transaction = request("transactions/$id")
 
-    override suspend fun sumTransactions(budgetId: String?, categoryId: String?): BalanceResponse =
+    override suspend fun sumTransactions(
+        from: Instant,
+        to: Instant,
+        budgetId: String?,
+        categoryId: String?
+    ): BalanceResponse =
         request(
             path = "transactions/sum",
             queryParams = listOf(
                 "budgetId" to budgetId,
-                "categoryId" to categoryId
+                "categoryId" to categoryId,
+                "from" to from.toString(),
+                "to" to to.toString(),
             )
         )
 

shared/src/commonMain/kotlin/com/wbrawner/twigs/shared/recurringtransaction/RecurringTransaction.kt

@@ -89,7 +89,7 @@ sealed class Frequency {
         override fun toString(): String = "M;$count;$dayOfMonth;$time"
         override val name: String = "Monthly"
         override val description: String
-            get() = if (count == 1) "Every month on ${dayOfMonth.description}"
+            get() = if (count == 1) "Every month on the ${dayOfMonth.description}"
             else "Every $count months on ${dayOfMonth.description}"
 
         companion object {
@@ -163,8 +163,7 @@ sealed class DayOfMonth {
     }
 
     data class FixedDayOfMonth(val day: Int) : DayOfMonth() {
-        override val description: String
-            get() = "$day"
+        override val description: String = day.ordinalString
 
         override fun toString(): String = "DAY-$day"
     }
@@ -200,7 +199,7 @@ val Enum<*>.capitalizedName: String
 class DayOfYear private constructor(val month: Int, val day: Int) {
 
     val description: String
-        get() = "${month.toMonth().capitalizedName} $day"
+        get() = "${month.toMonth().capitalizedName} ${day.ordinalString}"
 
     override fun toString(): String {
         return "${month.padStart(2, '0')}-${day.padStart(2, '0')}"
@@ -228,6 +227,14 @@ class DayOfYear private constructor(val month: Int, val day: Int) {
 
 fun Int.toMonth(): Month = Month(this)
 
+val Int.ordinalString: String
+    get() = when {
+        mod(1) == 0 -> "${this}st"
+        mod(2) == 0 -> "${this}nd"
+        mod(3) == 0 -> "${this}rd"
+        else -> "${this}th"
+    }
+
 data class Time(val hours: Int, val minutes: Int, val seconds: Int) {
     override fun toString(): String {
         val s = StringBuilder()

shared/src/commonMain/kotlin/com/wbrawner/twigs/shared/transaction/TransactionAction.kt

@@ -1,6 +1,7 @@
 package com.wbrawner.twigs.shared.transaction
 
 import com.wbrawner.twigs.shared.Action
+import com.wbrawner.twigs.shared.Effect
 import com.wbrawner.twigs.shared.Reducer
 import com.wbrawner.twigs.shared.Route
 import com.wbrawner.twigs.shared.State
@@ -25,6 +26,7 @@ sealed interface TransactionAction : Action {
     object TransactionsClicked : TransactionAction
     data class LoadTransactionsSuccess(val transactions: List<Transaction>) : TransactionAction
     data class LoadTransactionsFailed(val error: Exception) : TransactionAction
+    data class ChangeDateRange(val from: Instant, val to: Instant) : TransactionAction
     object NewTransactionClicked : TransactionAction
     data class CreateTransaction(
         val title: String,
@@ -67,6 +69,10 @@ sealed interface TransactionAction : Action {
     ) : TransactionAction
 
     data class DeleteTransaction(val id: String) : TransactionAction
+
+    data class TransactionDeleted(val id: String) : TransactionAction
+
+    data class TransactionDeletedFailure(val id: String) : TransactionAction
 }
 
 class TransactionReducer(
@@ -89,6 +95,24 @@ class TransactionReducer(
 
         is TransactionAction.TransactionsClicked -> state().copy(route = Route.Transactions(null))
         is TransactionAction.LoadTransactionsSuccess -> state().copy(transactions = action.transactions)
+        is TransactionAction.ChangeDateRange -> state().copy(
+            from = action.from,
+            to = action.to
+        ).also {
+            launch {
+                try {
+                    val transactions = transactionRepository.findAll(
+                        budgetIds = listOf(it.selectedBudget!!),
+                        start = it.from,
+                        end = it.to,
+                    )
+                    dispatch(TransactionAction.LoadTransactionsSuccess(transactions))
+                } catch (e: Exception) {
+                    dispatch(TransactionAction.LoadTransactionsFailed(e))
+                }
+            }
+        }
+
         is TransactionAction.NewTransactionClicked -> state().copy(editingTransaction = true)
         is TransactionAction.CancelEditTransaction -> {
             val currentState = state()
@@ -147,25 +171,30 @@ class TransactionReducer(
             val transactions = currentState.transactions?.toMutableList() ?: mutableListOf()
             transactions.replace(action.transaction)
             transactions.sortByDescending { it.date }
+            dispatch(TransactionAction.LoadTransactionsSuccess(transactions))
             currentState.copy(
                 loading = false,
                 transactions = transactions.toList(),
                 selectedTransaction = action.transaction.id,
                 selectedTransactionCreatedBy = currentState.user,
+                route = Route.Transactions(action.transaction.id),
                 editingTransaction = false
             )
         }
 
-        is BudgetAction.BudgetSelected -> {
+        is BudgetAction.BudgetSelected -> state().copy(transactions = null).also {
             launch {
                 try {
-                    val transactions = transactionRepository.findAll(budgetIds = listOf(action.id))
+                    val transactions = transactionRepository.findAll(
+                        start = it.from,
+                        end = it.to,
+                        budgetIds = listOf(action.id)
+                    )
                     dispatch(TransactionAction.LoadTransactionsSuccess(transactions))
                 } catch (e: Exception) {
                     dispatch(TransactionAction.LoadTransactionsFailed(e))
                 }
             }
-            state().copy(transactions = null)
         }
 
         is ConfigAction.Logout -> state().copy(
@@ -198,6 +227,32 @@ class TransactionReducer(
             selectedTransactionCreatedBy = action.createdBy
         )
 
+        is TransactionAction.DeleteTransaction -> state().copy(loading = true).also {
+            launch {
+                try {
+                    transactionRepository.delete(action.id)
+                    dispatch(TransactionAction.TransactionDeleted(action.id))
+                } catch (e: Exception) {
+                    e.printStackTrace()
+                    dispatch(TransactionAction.TransactionDeletedFailure(action.id))
+                }
+            }
+        }
+
+        is TransactionAction.TransactionDeleted -> {
+            val currentState = state()
+            currentState.copy(
+                transactions = currentState.transactions?.filter { it.id != action.id },
+                selectedTransaction = if (currentState.selectedTransaction == action.id) null else currentState.selectedTransaction,
+                editingTransaction = if (currentState.selectedTransaction == action.id) false else currentState.editingTransaction,
+                route = if (currentState.selectedTransaction == action.id) Route.Transactions() else currentState.route,
+            )
+        }
+
+        is TransactionAction.TransactionDeletedFailure -> state().also {
+            emit(Effect.Error("Failed to delete transaction"))
+        }
+
         else -> state()
     }
 }

shared/src/commonMain/kotlin/com/wbrawner/twigs/shared/transaction/TransactionRepository.kt

@@ -10,8 +10,8 @@ interface TransactionRepository : Repository<Transaction> {
     suspend fun findAll(
         budgetIds: List<String>? = null,
         categoryIds: List<String>? = null,
-        start: Instant? = startOfMonth(),
-        end: Instant? = endOfMonth()
+        start: Instant,
+        end: Instant
     ): List<Transaction>
 }
 
@@ -19,16 +19,21 @@ class NetworkTransactionRepository(private val apiService: APIService) : Transac
     override suspend fun findAll(
         budgetIds: List<String>?,
         categoryIds: List<String>?,
-        start: Instant?,
-        end: Instant?
+        start: Instant,
+        end: Instant
     ): List<Transaction> = apiService.getTransactions(
-        budgetIds,
-        categoryIds,
-        from = start.toString(),
-        to = end.toString()
+        budgetIds = budgetIds,
+        categoryIds = categoryIds,
+        from = start,
+        to = end
     )
 
-    override suspend fun findAll(): List<Transaction> = findAll(null, null)
+    override suspend fun findAll(): List<Transaction> = findAll(
+        start = startOfMonth(),
+        end = endOfMonth(),
+        budgetIds = null,
+        categoryIds = null
+    )
 
     override suspend fun create(newItem: Transaction): Transaction =
         apiService.newTransaction(newItem)