feat(widget): add WidgetTextSize enum with independent header/content scaling

3 files changed, 81 insertions, 0 deletions

diff --git a/android/app/src/main/java/org/terst/doot/widget/data/DataStore.kt b/android/app/src/main/java/org/terst/doot/widget/data/DataStore.kt
index d2f2cbb..7153cf8 100644
--- a/android/app/src/main/java/org/terst/doot/widget/data/DataStore.kt
+++ b/android/app/src/main/java/org/terst/doot/widget/data/DataStore.kt
@@ -17,4 +17,5 @@ object Keys {
     val NOW = stringPreferencesKey("now")
     val LAST_UPDATED = longPreferencesKey("last_updated")
     val IS_REFRESHING = booleanPreferencesKey("is_refreshing")
+    val TEXT_SIZE = stringPreferencesKey("text_size")
 }
diff --git a/android/app/src/main/java/org/terst/doot/widget/ui/WidgetTextSize.kt b/android/app/src/main/java/org/terst/doot/widget/ui/WidgetTextSize.kt
new file mode 100644
index 0000000..e44b983
--- /dev/null
+++ b/android/app/src/main/java/org/terst/doot/widget/ui/WidgetTextSize.kt
@@ -0,0 +1,38 @@
+package org.terst.doot.widget.ui
+
+import androidx.compose.ui.unit.TextUnit
+import androidx.compose.ui.unit.sp
+import androidx.glance.text.FontWeight
+
+/**
+ * Header and content are independent knobs (currently seeded with the same
+ * numbers) so either can be retuned later without affecting the other.
+ * SMALL reproduces the widget's original, pre-setting appearance exactly.
+ */
+enum class WidgetTextSize(
+    val headerScale: Float,
+    val headerWeightBump: Int,
+    val contentScale: Float,
+    val contentWeightBump: Int
+) {
+    SMALL(1.0f, 0, 1.0f, 0),
+    NORMAL(1.15f, 1, 1.15f, 1),
+    LARGE(1.3f, 2, 1.3f, 2);
+
+    companion object {
+        fun fromPref(raw: String?): WidgetTextSize =
+            raw?.let { name -> entries.find { it.name == name } } ?: NORMAL
+    }
+}
+
+private val weightLadder = listOf(FontWeight.Normal, FontWeight.Medium, FontWeight.Bold)
+
+private fun bumpWeight(base: FontWeight, bump: Int): FontWeight {
+    val idx = weightLadder.indexOf(base).coerceAtLeast(0)
+    return weightLadder[(idx + bump).coerceAtMost(weightLadder.lastIndex)]
+}
+
+fun WidgetTextSize.scaledHeaderSize(baseSp: Int): TextUnit = (baseSp * headerScale).sp
+fun WidgetTextSize.scaledHeaderWeight(base: FontWeight): FontWeight = bumpWeight(base, headerWeightBump)
+fun WidgetTextSize.scaledContentSize(baseSp: Int): TextUnit = (baseSp * contentScale).sp
+fun WidgetTextSize.scaledContentWeight(base: FontWeight): FontWeight = bumpWeight(base, contentWeightBump)
diff --git a/android/app/src/test/java/org/terst/doot/widget/ui/WidgetTextSizeTest.kt b/android/app/src/test/java/org/terst/doot/widget/ui/WidgetTextSizeTest.kt
new file mode 100644
index 0000000..b0826b5
--- /dev/null
+++ b/android/app/src/test/java/org/terst/doot/widget/ui/WidgetTextSizeTest.kt
@@ -0,0 +1,42 @@
+package org.terst.doot.widget.ui
+
+import androidx.glance.text.FontWeight
+import org.junit.Assert.assertEquals
+import org.junit.Test
+
+class WidgetTextSizeTest {
+
+    @Test
+    fun `SMALL reproduces base size and weight unchanged`() {
+        assertEquals(14f, WidgetTextSize.SMALL.scaledContentSize(14).value, 0.001f)
+        assertEquals(FontWeight.Normal, WidgetTextSize.SMALL.scaledContentWeight(FontWeight.Normal))
+        assertEquals(FontWeight.Bold, WidgetTextSize.SMALL.scaledHeaderWeight(FontWeight.Bold))
+    }
+
+    @Test
+    fun `NORMAL scales size by 1_15x and bumps weight one step`() {
+        assertEquals(16.1f, WidgetTextSize.NORMAL.scaledContentSize(14).value, 0.001f)
+        assertEquals(FontWeight.Medium, WidgetTextSize.NORMAL.scaledContentWeight(FontWeight.Normal))
+        assertEquals(FontWeight.Bold, WidgetTextSize.NORMAL.scaledHeaderWeight(FontWeight.Medium))
+    }
+
+    @Test
+    fun `LARGE scales size by 1_3x and bumps weight two steps`() {
+        assertEquals(18.2f, WidgetTextSize.LARGE.scaledContentSize(14).value, 0.001f)
+        assertEquals(FontWeight.Bold, WidgetTextSize.LARGE.scaledContentWeight(FontWeight.Normal))
+    }
+
+    @Test
+    fun `weight bump caps at Bold instead of overflowing`() {
+        assertEquals(FontWeight.Bold, WidgetTextSize.LARGE.scaledContentWeight(FontWeight.Bold))
+        assertEquals(FontWeight.Bold, WidgetTextSize.LARGE.scaledHeaderWeight(FontWeight.Medium))
+    }
+
+    @Test
+    fun `fromPref falls back to NORMAL for missing or invalid values, else parses by name`() {
+        assertEquals(WidgetTextSize.NORMAL, WidgetTextSize.fromPref(null))
+        assertEquals(WidgetTextSize.NORMAL, WidgetTextSize.fromPref("bogus"))
+        assertEquals(WidgetTextSize.SMALL, WidgetTextSize.fromPref("SMALL"))
+        assertEquals(WidgetTextSize.LARGE, WidgetTextSize.fromPref("LARGE"))
+    }
+}