Fixed logic in MainViewModel's init method

app/src/main/java/com/sadellie/unitto/screens/MainScreenUIState.kt

@@ -10,7 +10,8 @@ import com.sadellie.unitto.data.KEY_0
  * @property deleteButtonEnabled Delete last symbol from input button state
  * @property dotButtonEnabled Add dot to input button state
  * @property negateButtonEnabled Switch input between positive and negative button state
- * @property isLoadingDataStore Whether we are loading data from DataStore. Need on app launch
+ * @property isLoadingDatabase Whether we are loading data from Database. Need on app launch, once
+ * we are done loading list on Units list can be sorted by usage properly/
  * @property isLoadingNetwork Whether we are loading data from network
  * @property showError Whether there was an error while loading data from network
  */
@@ -20,7 +21,7 @@ data class MainScreenUIState(
     var deleteButtonEnabled: Boolean = false,
     var dotButtonEnabled: Boolean = true,
     var negateButtonEnabled: Boolean = false,
-    var isLoadingDataStore: Boolean = true,
+    var isLoadingDatabase: Boolean = true,
     var isLoadingNetwork: Boolean = false,
     var showError: Boolean = false,
 )

app/src/main/java/com/sadellie/unitto/screens/MainViewModel.kt

@@ -135,8 +135,6 @@ class MainViewModel @Inject constructor(
      * This function takes local variables, converts values and then causes the UI to update
      */
     private fun convertValue() {
-        // We cannot convert values, as we are still user prefs from datastore (precision)
-        if (mainUIState.isLoadingDataStore) return
         // Converting value using a specified precision
         val convertedValue: BigDecimal =
             unitFrom.convert(unitTo, mainUIState.inputValue.toBigDecimal(), precision)
@@ -230,7 +228,8 @@ class MainViewModel @Inject constructor(
     }
 
     /**
-     * Updates basic units properties for all currencies. Uses [unitFrom]
+     * Updates basic units properties for all currencies, BUT only when [unitFrom]'s group is set
+     * to [UnitGroup.CURRENCY].
      */
     private suspend fun updateCurrenciesBasicUnits() {
         // Resetting error and network loading states in case we are not gonna do anything below
@@ -511,10 +510,10 @@ class MainViewModel @Inject constructor(
                 ALL_UNITS.first { it.unitId == MyUnitIDS.mile }
             }
 
-            convertValue()
+            mainUIState = mainUIState.copy(negateButtonEnabled = unitFrom.group.canNegate)
 
+            // Now we load units data from database
             val allBasedUnits = basedUnitRepository.getAll()
-
             ALL_UNITS.forEach {
                 // Loading unit names so that we can search through them
                 it.renderedName = application.getString(it.displayName)
@@ -526,19 +525,10 @@ class MainViewModel @Inject constructor(
                 it.counter = based?.frequency ?: 0
             }
 
-            // User is free to convert values
-            // Set negate button state according to current group
-            mainUIState = mainUIState.copy(
-                isLoadingDataStore = false,
-                negateButtonEnabled = unitFrom.group.canNegate
-            )
-
-            /*
-            * This is at the bottom in case latest unit group was currency and user doesn't have
-            * network access.
-            * He can choose another unit group and doesn't need to wait for network to appear.
-            * */
+            // User is free to convert values and units on units screen can be sorted properly
+            mainUIState = mainUIState.copy(isLoadingDatabase = false)
             updateCurrenciesBasicUnits()
+            convertValue()
         }
     }
 }

app/src/main/java/com/sadellie/unitto/screens/main/MainScreen.kt

@@ -109,7 +109,7 @@ private fun PortraitMainScreenContent(
                 outputValue = mainScreenUIState.resultValue,
                 unitFrom = unitFrom,
                 unitTo = unitTo,
-                loadingDataStore = mainScreenUIState.isLoadingDataStore,
+                loadingDatabase = mainScreenUIState.isLoadingDatabase,
                 loadingNetwork = mainScreenUIState.isLoadingNetwork,
                 networkError = mainScreenUIState.showError,
                 onUnitSelectionClick = navControllerAction,
@@ -143,7 +143,7 @@ private fun PortraitMainScreenContent(
                 outputValue = mainScreenUIState.resultValue,
                 unitFrom = unitFrom,
                 unitTo = unitTo,
-                loadingDataStore = mainScreenUIState.isLoadingDataStore,
+                loadingDatabase = mainScreenUIState.isLoadingDatabase,
                 loadingNetwork = mainScreenUIState.isLoadingNetwork,
                 networkError = mainScreenUIState.showError,
                 onUnitSelectionClick = navControllerAction,

app/src/main/java/com/sadellie/unitto/screens/main/components/TopScreen.kt

@@ -25,7 +25,8 @@ import com.sadellie.unitto.data.units.AbstractUnit
  * @param outputValue Current output value (like big decimal)
  * @param unitFrom [AbstractUnit] on the left
  * @param unitTo [AbstractUnit] on the right
- * @param loadingDataStore Are we still loading settings from data store? Disables unit selection buttons
+ * @param loadingDatabase Are we still loading units usage stats from database? Disables unit
+ * selection buttons.
  * @param loadingNetwork Are we loading data from network? Shows loading text in TextFields
  * @param networkError Did we got errors while trying to get data from network
  * @param onUnitSelectionClick Function that is called when clicking unit selection buttons
@@ -38,7 +39,7 @@ fun TopScreenPart(
     outputValue: String,
     unitFrom: AbstractUnit,
     unitTo: AbstractUnit,
-    loadingDataStore: Boolean,
+    loadingDatabase: Boolean,
     loadingNetwork: Boolean,
     networkError: Boolean,
     onUnitSelectionClick: (Boolean) -> Unit,
@@ -51,14 +52,14 @@ fun TopScreenPart(
         MyTextField(
             Modifier.fillMaxWidth(),
             inputValue,
-            stringResource(id = if (loadingDataStore) R.string.loading_label else unitFrom.shortName),
+            stringResource(id = if (loadingDatabase) R.string.loading_label else unitFrom.shortName),
             loadingNetwork,
             networkError
         )
         MyTextField(
             Modifier.fillMaxWidth(),
             outputValue,
-            stringResource(id = if (loadingDataStore) R.string.loading_label else unitTo.shortName),
+            stringResource(id = if (loadingDatabase) R.string.loading_label else unitTo.shortName),
             loadingNetwork,
             networkError
         )
@@ -73,9 +74,9 @@ fun TopScreenPart(
                     .weight(1f),
                 onClick = { onUnitSelectionClick(true) },
                 label = unitFrom.displayName,
-                loadingState = loadingDataStore
+                isLoading = loadingDatabase
             )
-            IconButton({ swapUnits() }, enabled = !loadingDataStore) {
+            IconButton({ swapUnits() }, enabled = !loadingDatabase) {
                 Icon(
                     Icons.Outlined.SwapHoriz, contentDescription = stringResource(
                         id = R.string.swap_units_description
@@ -88,7 +89,7 @@ fun TopScreenPart(
                     .weight(1f),
                 onClick = { onUnitSelectionClick(false) },
                 label = unitTo.displayName,
-                loadingState = loadingDataStore
+                isLoading = loadingDatabase
             )
         }
     }

app/src/main/java/com/sadellie/unitto/screens/main/components/UnitSelectionButton.kt

@@ -26,19 +26,19 @@ import com.sadellie.unitto.R
  * @param modifier Modifier that is applied to a [Button]
  * @param onClick Function to call when button is clicked (navigate to a unit selection screen)
  * @param label Text on button
- * @param loadingState Show "Loading" text and disable button
+ * @param isLoading Show "Loading" text and disable button
  */
 @Composable
 fun UnitSelectionButton(
     modifier: Modifier = Modifier,
     onClick: () -> Unit = {},
     label: Int,
-    loadingState: Boolean
+    isLoading: Boolean
 ) {
     Button(
         modifier = modifier,
         onClick = { onClick() },
-        enabled = !loadingState,
+        enabled = !isLoading,
         colors = ButtonDefaults.buttonColors(
             containerColor = MaterialTheme.colorScheme.secondaryContainer
         ),
@@ -59,7 +59,7 @@ fun UnitSelectionButton(
             }
         ) {
             Text(
-                text = stringResource(if (loadingState) R.string.loading_label else label),
+                text = stringResource(if (isLoading) R.string.loading_label else label),
                 maxLines = 1,
                 overflow = TextOverflow.Ellipsis,
                 color = MaterialTheme.colorScheme.onSecondaryContainer