Coverage Summary for Class: TransactionEditIdentityBandKt (com.georgeci.moneysurfer.feature.transaction.creation)

 package com.georgeci.moneysurfer.feature.transaction.creation
 
 import androidx.compose.foundation.background
 import androidx.compose.foundation.border
 import androidx.compose.foundation.layout.Arrangement
 import androidx.compose.foundation.layout.Column
 import androidx.compose.foundation.layout.Row
 import androidx.compose.foundation.layout.padding
 import androidx.compose.material3.Text
 import androidx.compose.runtime.Composable
 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.graphics.compositeOver
 import androidx.compose.ui.text.font.FontWeight
 import androidx.compose.ui.text.style.TextOverflow
 import androidx.compose.ui.tooling.preview.Preview
 import androidx.compose.ui.unit.dp
 import com.georgeci.moneysurfer.uikit.components.SurferCategoryBubble
 import com.georgeci.moneysurfer.uikit.components.SurferCategoryPalette
 import com.georgeci.moneysurfer.uikit.preview.SurferComponentPreview
 import com.georgeci.moneysurfer.uikit.theme.AppTheme
 import moneysurfer.feature.transaction.generated.resources.Res
 import moneysurfer.feature.transaction.generated.resources.transaction_creation_expense
 import moneysurfer.feature.transaction.generated.resources.transaction_creation_income
 import moneysurfer.feature.transaction.generated.resources.transaction_creation_transfer
 import org.jetbrains.compose.resources.stringResource
 
 /** Opacity of the identity band's tint wash — lighter than a pill, it backs a whole block. */
 private const val IDENTITY_BAND_WASH_ALPHA = 0.12f
 
 /** Opacity of the band's hairline border, strong enough to read against the wash behind it. */
 private const val IDENTITY_BAND_BORDER_ALPHA = 0.18f
 
 private const val IDENTITY_HEADER_SEPARATOR = " · "
 
 /**
  * The design's `04b · Edit transaction` band: the category bubble, `EXPENSE · TX-8213`, the note
  * and the amount, tinted with the transaction's own colour.
  *
  * It is what distinguishes editing from creating beyond a word in the title, and it renders the
  * *stored* row (see [TransactionEditIdentity]) — so it keeps naming the transaction under edit
  * while the fields below it change.
  */
 @Composable
 internal fun EditIdentityBand(
     identity: TransactionEditIdentity,
     modifier: Modifier = Modifier,
 ) {
     val visual = SurferCategoryPalette.visualFor(
         id = identity.categoryId,
         iconKey = identity.categoryIconKey,
         hue = identity.categoryHue,
         systemKind = identity.categorySystemKind,
     )
     // A transfer's category is the seeded system one, so its own tint says nothing the type
     // colour does not already say better.
     val tint = if (identity.type == TransactionTypeUi.Transfer) typeTint(identity.type) else visual.tint
     val wash = tint.copy(alpha = IDENTITY_BAND_WASH_ALPHA)
         .compositeOver(AppTheme.materialColors.surface)
     val typeLabel = stringResource(
         when (identity.type) {
             TransactionTypeUi.Expense -> Res.string.transaction_creation_expense
             TransactionTypeUi.Income -> Res.string.transaction_creation_income
             TransactionTypeUi.Transfer -> Res.string.transaction_creation_transfer
         },
     ).uppercase()
     Row(
         modifier = modifier
             .clip(AppTheme.shapes.large)
             .background(wash)
             .border(1.dp, tint.copy(alpha = IDENTITY_BAND_BORDER_ALPHA), AppTheme.shapes.large)
             .padding(horizontal = 14.dp, vertical = 12.dp),
         verticalAlignment = Alignment.CenterVertically,
         horizontalArrangement = Arrangement.spacedBy(12.dp),
     ) {
         SurferCategoryBubble(icon = visual.icon, tint = tint, size = 44.dp)
         Column(modifier = Modifier.weight(1f)) {
             Text(
                 text = typeLabel + IDENTITY_HEADER_SEPARATOR + identity.reference,
                 style = AppTheme.typography.labelMedium,
                 color = tint,
                 maxLines = 1,
                 overflow = TextOverflow.Ellipsis,
             )
             if (identity.note.isNotBlank()) {
                 Text(
                     text = identity.note,
                     style = AppTheme.typography.bodyLarge,
                     color = AppTheme.materialColors.onSurface,
                     maxLines = 1,
                     overflow = TextOverflow.Ellipsis,
                 )
             }
         }
         Text(
             text = identity.formattedAmount,
             style = AppTheme.typography.titleMedium.copy(fontWeight = FontWeight.SemiBold),
             color = AppTheme.materialColors.onSurface,
             maxLines = 1,
         )
     }
 }
 
 /** Semantic colour of a transaction type, shared by the band and the amount hero's type pill. */
 @Composable
 internal fun typeTint(type: TransactionTypeUi): Color = when (type) {
     TransactionTypeUi.Expense -> AppTheme.semanticColors.expense
     TransactionTypeUi.Income -> AppTheme.semanticColors.income
     TransactionTypeUi.Transfer -> AppTheme.semanticColors.transfer
 }
 
 @Preview
 @Composable
 private fun EditIdentityBandPreview() {
     SurferComponentPreview {
         Column(
             modifier = Modifier.padding(16.dp),
             verticalArrangement = Arrangement.spacedBy(12.dp),
         ) {
             EditIdentityBand(
                 identity = TransactionEditIdentity(
                     reference = "TX-8213",
                     type = TransactionTypeUi.Expense,
                     note = PreviewNote,
                     formattedAmount = "−€48.20",
                     categoryId = "preview-cat-1",
                     categoryIconKey = "",
                     categoryHue = -1,
                     categorySystemKind = null,
                 ),
             )
             EditIdentityBand(
                 identity = TransactionEditIdentity(
                     reference = "TX-3C35",
                     type = TransactionTypeUi.Transfer,
                     note = "Rainy day top-up",
                     formattedAmount = "€200.00",
                     categoryId = "preview-cat-transfer",
                     categoryIconKey = SurferCategoryPalette.TRANSFER_ICON_KEY,
                     categoryHue = -1,
                     categorySystemKind = SurferCategoryPalette.SYSTEM_KIND_TRANSFER,
                 ),
             )
         }
     }
 }