0.4.1 - Small fix for share image

app/src/main/java/com/atridad/openclimb/utils/SessionShareUtils.kt

@@ -24,7 +24,8 @@ object SessionShareUtils {
         val uniqueProblemsCompleted: Int,
         val averageGrade: String?,
         val sessionDuration: String,
-        val topResult: AttemptResult?
+        val topResult: AttemptResult?,
+        val topGrade: String?
     )
     
     fun calculateSessionStats(
@@ -58,6 +59,19 @@ object SessionShareUtils {
             else -> null
         }
         
+        // Determine highest achieved grade (only from completed problems: SUCCESS or FLASH)
+        val completedProblems = problems.filter { it.id in uniqueCompletedProblems }
+        val completedBoulder = completedProblems.filter { it.climbType == ClimbType.BOULDER }
+        val completedRope = completedProblems.filter { it.climbType == ClimbType.ROPE }
+        val topBoulder = highestGradeForProblems(completedBoulder)
+        val topRope = highestGradeForProblems(completedRope)
+        val topGrade = when {
+            topBoulder != null && topRope != null -> "$topBoulder / $topRope"
+            topBoulder != null -> topBoulder
+            topRope != null -> topRope
+            else -> null
+        }
+        
         val duration = if (session.duration != null) "${session.duration}m" else "Unknown"
         val topResult = attempts.maxByOrNull { 
             when (it.result) {
@@ -76,7 +90,8 @@ object SessionShareUtils {
             uniqueProblemsCompleted = uniqueCompletedProblems.size,
             averageGrade = averageGrade,
             sessionDuration = duration,
-            topResult = topResult
+            topResult = topResult,
+            topGrade = topGrade
         )
     }
     
@@ -249,8 +264,8 @@ object SessionShareUtils {
             drawStatItem(canvas, width - columnWidth / 2f, rightY, "Completed", stats.uniqueProblemsCompleted.toString(), statLabelPaint, statValuePaint)
             rightY += 140f
             
-            stats.averageGrade?.let { grade ->
-                drawStatItem(canvas, width - columnWidth / 2f, rightY, "Avg Grade", grade, statLabelPaint, statValuePaint)
+            stats.topGrade?.let { grade ->
+                drawStatItem(canvas, width - columnWidth / 2f, rightY, "Top Grade", grade, statLabelPaint, statValuePaint)
             }
             
             // Success rate arc
@@ -383,4 +398,48 @@ object SessionShareUtils {
             e.printStackTrace()
         }
     }
+
+    /**
+     * Returns the highest grade string among the given problems, respecting their difficulty system.
+     */
+    private fun highestGradeForProblems(problems: List<Problem>): String? {
+        if (problems.isEmpty()) return null
+        return problems.maxByOrNull { p -> gradeRank(p.difficulty.system, p.difficulty.grade) }?.difficulty?.grade
+    }
+
+    /**
+     * Produces a comparable numeric rank for grades across supported systems.
+     */
+    private fun gradeRank(system: DifficultySystem, grade: String): Double {
+        return when (system) {
+            DifficultySystem.V_SCALE -> {
+                if (grade == "VB") 0.0 else grade.removePrefix("V").toDoubleOrNull() ?: -1.0
+            }
+            DifficultySystem.FONT -> {
+                val list = DifficultySystem.FONT.getAvailableGrades()
+                val idx = list.indexOf(grade.uppercase())
+                if (idx >= 0) idx.toDouble() else grade.filter { it.isDigit() }.toDoubleOrNull() ?: -1.0
+            }
+            DifficultySystem.YDS -> {
+                // Parse 5.X with optional letter a-d
+                val s = grade.lowercase()
+                if (!s.startsWith("5.")) return -1.0
+                val tail = s.removePrefix("5.")
+                val numberPart = tail.takeWhile { it.isDigit() || it == '.' }
+                val letterPart = tail.drop(numberPart.length).firstOrNull()
+                val base = numberPart.toDoubleOrNull() ?: return -1.0
+                val letterWeight = when (letterPart) {
+                    'a' -> 0.0
+                    'b' -> 0.1
+                    'c' -> 0.2
+                    'd' -> 0.3
+                    else -> 0.0
+                }
+                base + letterWeight
+            }
+            DifficultySystem.CUSTOM -> {
+                grade.filter { it.isDigit() || it == '.' || it == '-' }.toDoubleOrNull() ?: -1.0
+            }
+        }
+    }
 }