Chart power vs time for official climb attempts

Snapshot average power per attempt in a nullable average_power_w column (backfilled from stored rides), plot each powered attempt on the climb page as duration vs average watts with ride hover and click-through, and show avg power in the attempts table.

1 files changed, 12 insertions, 0 deletions

diff --git a/web/views.go b/web/views.go
index 5dfc0e6..af3dbc2 100644
--- a/web/views.go
+++ b/web/views.go
@@ -448,6 +448,14 @@ func formatElevation(meters float64) string {
 	return fmt.Sprintf("%.0f m", meters)
 }
 
+// formatPower renders an attempt's average power; a missing power meter shows "-".
+func formatPower(watts *float64) string {
+	if watts == nil {
+		return "-"
+	}
+	return fmt.Sprintf("%.0f W", *watts)
+}
+
 func formatCotacol(cotacol float64) string {
 	return fmt.Sprintf("%.1f", cotacol)
 }
@@ -488,6 +496,10 @@ func officialProfileLabel(name string) string {
 	return "Elevation profile for " + name
 }
 
+func attemptsChartLabel(name string) string {
+	return "Power vs time of recorded attempts at " + name
+}
+
 func rideDetailColumnsClass(unmatchedClimbCount int) string {
 	if unmatchedClimbCount == 0 {
 		return "ride-detail-columns ride-detail-columns-single"