create a LanguageDownloadProgressIndicator for the downloadable langu…

…ages UI

app/src/main/kotlin/org/cru/godtools/ui/languages/downloadable/LanguageDownloadProgressIndicator+Preview.kt

@@ -0,0 +1,23 @@
+package org.cru.godtools.ui.languages.downloadable
+
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.tooling.preview.Preview
+import org.cru.godtools.base.ui.theme.GodToolsTheme
+
+@Preview
+@Composable
+private fun LanguageDownloadProgressIndicatorNotPinned() {
+    GodToolsTheme { LanguageDownloadProgressIndicator(isPinned = false, downloaded = 0, total = 5) }
+}
+
+@Preview
+@Composable
+private fun LanguageDownloadProgressIndicatorInProgress() {
+    GodToolsTheme { LanguageDownloadProgressIndicator(isPinned = true, downloaded = 2, total = 5) }
+}
+
+@Preview
+@Composable
+private fun LanguageDownloadProgressIndicatorDownloaded() {
+    GodToolsTheme { LanguageDownloadProgressIndicator(isPinned = true, downloaded = 5, total = 5) }
+}

app/src/main/kotlin/org/cru/godtools/ui/languages/downloadable/LanguageDownloadProgressIndicator.kt

@@ -0,0 +1,65 @@
+package org.cru.godtools.ui.languages.downloadable
+
+import androidx.compose.animation.core.animateFloatAsState
+import androidx.compose.foundation.border
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.layout.size
+import androidx.compose.foundation.shape.CircleShape
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.outlined.CheckCircle
+import androidx.compose.material.icons.outlined.DownloadForOffline
+import androidx.compose.material3.CircularProgressIndicator
+import androidx.compose.material3.Icon
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.getValue
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.unit.Dp
+import androidx.compose.ui.unit.dp
+
+@Composable
+internal fun LanguageDownloadProgressIndicator(
+    isPinned: Boolean,
+    downloaded: Int,
+    total: Int,
+    modifier: Modifier = Modifier,
+    iconSize: Dp = 24.dp,
+) {
+    val total = total.coerceAtLeast(0)
+    val downloaded = downloaded.coerceIn(0, total)
+    val contentModifier = modifier.size(iconSize)
+
+    when {
+        !isPinned -> Icon(
+            Icons.Outlined.DownloadForOffline,
+            null,
+            modifier = contentModifier,
+            tint = MaterialTheme.colorScheme.outline,
+        )
+        downloaded == total -> Icon(
+            Icons.Outlined.CheckCircle,
+            null,
+            modifier = contentModifier,
+            tint = MaterialTheme.colorScheme.primary,
+        )
+        else -> {
+            val progress by animateFloatAsState(
+                label = "Download Progress",
+                targetValue = when (total) {
+                    0 -> 1f
+                    else -> downloaded.toFloat() / total
+                },
+            )
+
+            val iconPadding = iconSize / 12
+            CircularProgressIndicator(
+                progress = progress,
+                color = MaterialTheme.colorScheme.primary,
+                strokeWidth = (iconSize / 2) - iconPadding,
+                modifier = contentModifier
+                    .padding(iconPadding)
+                    .border(iconSize / 12, MaterialTheme.colorScheme.primary, CircleShape)
+            )
+        }
+    }
+}