# HG changeset patch
# User Sascha L. Teichmann <sascha.teichmann@intevation.de>
# Date 1555076940 -7200
# Node ID 7f12a87c56ff274c7760985235329f0237b14538
# Parent  5d7db2ea16c8b5c31d151fc516432b4ddca2980e
Fairway availability: Set boundaries of segments correctly.

diff -r 5d7db2ea16c8 -r 7f12a87c56ff pkg/controllers/bottlenecks.go
--- a/pkg/controllers/bottlenecks.go	Fri Apr 12 14:51:23 2019 +0200
+++ b/pkg/controllers/bottlenecks.go	Fri Apr 12 15:49:00 2019 +0200
@@ -128,7 +128,7 @@
 		}
 	}
 
-	valInt := func(p1, p2 *availMeasurement) func(time.Time) (float64, common.ValueRangeKind) {
+	vbt := func(p1, p2 *availMeasurement) func(time.Time) (float64, common.ValueRangeKind) {
 		return common.InterpolateValueByTime(
 			p1.when, float64(p1.value),
 			p2.when, float64(p2.value),
@@ -140,6 +140,8 @@
 		p1 := &measurements[i]
 		p2 := &measurements[i+1]
 
+		var start, end time.Time
+
 		switch {
 		case !p2.when.After(p2.when):
 			// Segment invalid
@@ -153,28 +155,31 @@
 			// (from-to) is complete inside segment.
 			invalid += p1.when.Sub(from)
 			invalid += to.Sub(p2.when)
-			v := valInt(p1, p2)
+			v := vbt(p1, p2)
 			f, _ := v(from)
 			t, _ := v(to)
 			classify(common.InterpolateTimeByValue(from, f, to, t))
+			start, end = from, to
 
 		case p1.when.After(from):
 			// from is inside segment
 			invalid += p1.when.Sub(from)
-			f, _ := valInt(p1, p2)(from)
+			f, _ := vbt(p1, p2)(from)
 			classify(common.InterpolateTimeByValue(
 				from, f,
 				p2.when, float64(p2.value),
 			))
+			start, end = from, p2.when
 
 		case p2.when.Before(to):
 			// to is inside segment
 			invalid += to.Sub(p2.when)
-			t, _ := valInt(p1, p2)(to)
+			t, _ := vbt(p1, p2)(to)
 			classify(common.InterpolateTimeByValue(
 				p1.when, float64(p1.value),
 				to, t,
 			))
+			start, end = p1.when, to
 
 		case !p1.when.Before(from) && !to.After(p2.when):
 			// Segment complete inside.
@@ -182,8 +187,13 @@
 				p1.when, float64(p1.value),
 				p2.when, float64(p2.value),
 			))
+			start, end = p1.when, p2.when
+		default:
+			log.Println("warn: unexpected case. That should not happen.")
+			continue pairs
 		}
 		// TODO: Distribute to classes.
+		_, _ = start, end
 	}
 
 	return nil