1 files changed, 46 insertions, 0 deletions
diff --git a/ride/ride.go b/ride/ride.go
new file mode 100644
index 0000000..8206793
--- /dev/null
+++ b/ride/ride.go
@@ -0,0 +1,46 @@
+package ride
+
+import (
+	"fmt"
+
+	"github.com/martinlehoux/kagamigo/kcore"
+	"github.com/tkrajina/gpxgo/gpx"
+)
+
+type Ride struct {
+	points []Point
+}
+
+func (r *Ride) check() {
+	kcore.Assert(len(r.points) > 0, "no points in ride")
+}
+
+func FromGPX(content *gpx.GPX) Ride {
+	segment := content.Tracks[0].Segments[0]
+	points := make([]Point, len(segment.Points))
+	distance := 0.0
+	for i, p := range segment.Points {
+		if i != 0 {
+			distance += p.Distance2D(&segment.Points[i-1])
+		}
+		kcore.Assert(i == 0 || distance > 0, "zero distance")
+		kcore.Assert(p.Elevation.NotNull(), "points without elevation")
+		points[i] = Point{distance: distance, elevation: p.Elevation.Value()}
+	}
+	ride := Ride{points}
+	ride.check()
+	return ride
+}
+
+func FromPoints(points []Point) Ride {
+	ride := Ride{points}
+	ride.check()
+	return ride
+}
+
+func (r *Ride) String(climb Climb) string {
+	start := r.points[climb.start]
+	end := r.points[climb.end]
+	score := Score(r.points, climb.start, climb.end)
+	return fmt.Sprintf("%.1fkm-%.1fkm: %.1fkm at %.1f%% (%d pts - %s)", start.distance/1000, end.distance/1000, (end.distance-start.distance)/1000, Slope(start, end)*100, int(score), Category(score))
+}