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path: root/ride/climb_test.go
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package ride_test

import (
	"testing"

	"github.com/martinlehoux/biking_home/internal/ridetest"
	"github.com/martinlehoux/biking_home/ride"
	"github.com/stretchr/testify/assert"
	"github.com/stretchr/testify/require"
)

var parser = ride.GPXRideParser{}

func TestClimbThenFalseFlat(t *testing.T) {
	r := ridetest.MustRide("2km at 7% | 10km at 1%")
	climbs := r.DetectClimbs(nil, ride.ClimbSlopeMinimum)

	assert.Len(t, climbs, 1)
	assert.Equal(t, "0.0km-2.0km: 2.0km at 7.0% (98 pts - Cat 3)", climbs[0].String())
}

func TestSmallClimbWithDescentInsideFalseFlat(t *testing.T) {
	r := ridetest.MustRide("10km at 1% | 2km at 7% | 1km at -7% | 10km at 1%")
	climbs := r.DetectClimbs(nil, ride.ClimbSlopeMinimum)

	assert.Len(t, climbs, 1)
	assert.Equal(t, "10.0km-12.0km: 2.0km at 7.0% (98 pts - Cat 3)", climbs[0].String())
}

func TestPogacar20220721(t *testing.T) {
	r, err := ride.ParseFile(parser, "../examples/2022-07-21.Pogacar.gpx")
	assert.NoError(t, err)
	climbs := r.DetectClimbs(nil, ride.ClimbSlopeMinimum)

	assert.Len(t, climbs, 6)
	assert.Equal(t, "0.6km-5.6km: 5.0km at 3.5% (92 pts - Cat 3)", climbs[0].String())
	assert.Equal(t, "42.9km-45.2km: 2.3km at 5.0% (74 pts - Cat 4)", climbs[1].String())
	assert.Equal(t, "60.0km-76.4km: 16.4km at 7.2% (977 pts - HC)", climbs[2].String())
	assert.Equal(t, "83.8km-85.9km: 2.0km at 5.4% (79 pts - Cat 4)", climbs[3].String())
	assert.Equal(t, "99.2km-109.3km: 10.2km at 8.4% (751 pts - HC)", climbs[4].String())
	assert.Equal(t, "128.6km-142.2km: 13.6km at 7.8% (930 pts - HC)", climbs[5].String())
}

func TestBouclesVerdon2024(t *testing.T) {
	r, err := ride.ParseFile(parser, "../examples/2024-06-29.BouclesVerdon.gpx")
	assert.NoError(t, err)
	climbs := r.DetectClimbs(nil, ride.ClimbSlopeMinimum)

	assert.Len(t, climbs, 6)
	assert.Equal(t, "6.8km-9.1km: 2.3km at 4.0% (41 pts - Cat 4)", climbs[0].String())
	assert.Equal(t, "34.7km-37.3km: 2.5km at 5.0% (67 pts - Cat 4)", climbs[1].String())
	assert.Equal(t, "41.9km-43.8km: 1.8km at 4.6% (39 pts - Cat 4)", climbs[2].String())
	assert.Equal(t, "57.6km-60.8km: 3.1km at 6.3% (139 pts - Cat 3)", climbs[3].String())
	assert.Equal(t, "71.7km-74.7km: 3.0km at 5.3% (89 pts - Cat 3)", climbs[4].String())
	assert.Equal(t, "77.4km-78.7km: 1.3km at 5.3% (39 pts - Cat 4)", climbs[5].String())
}

func TestMimetArbois20241229(t *testing.T) {
	r, err := ride.ParseFile(parser, "../examples/2024-12-29.MimetArbois.gpx")
	assert.NoError(t, err)
	climbs := r.DetectClimbs(nil, ride.ClimbSlopeMinimum)

	assert.Len(t, climbs, 2)
	assert.Equal(t, "3.9km-5.3km: 1.4km at 10.3% (165 pts - Cat 3)", climbs[0].String())
	assert.Equal(t, "14.4km-19.8km: 5.4km at 4.3% (113 pts - Cat 3)", climbs[1].String())
}

func TestMimetArbois20250104(t *testing.T) {
	r, err := ride.ParseFile(parser, "../examples/2025-01-04.MimetArbois.gpx")
	assert.NoError(t, err)
	climbs := r.DetectClimbs(nil, ride.ClimbSlopeMinimum)

	assert.Len(t, climbs, 2)
	assert.Equal(t, "4.5km-5.9km: 1.4km at 10.1% (159 pts - Cat 3)", climbs[0].String())
	assert.Equal(t, "12.0km-15.1km: 3.2km at 4.5% (99 pts - Cat 3)", climbs[1].String())
}

// https://www.strava.com/activities/9282265844
func TestAlpesVerdonTour20230617(t *testing.T) {
	r, err := ride.ParseFile(parser, "../examples/2023-06-17.AlpesVerdonTour.gpx")
	assert.NoError(t, err)
	climbs := r.DetectClimbs(nil, ride.ClimbSlopeMinimum)

	assert.Len(t, climbs, 6)
	assert.Equal(t, "0.7km-4.6km: 3.9km at 4.2% (72 pts - Cat 4)", climbs[0].String())
	assert.Equal(t, "8.2km-18.6km: 10.3km at 4.4% (292 pts - Cat 1)", climbs[1].String())
	assert.Equal(t, "36.1km-41.6km: 5.4km at 5.8% (193 pts - Cat 2)", climbs[2].String())
	assert.Equal(t, "47.0km-48.2km: 1.2km at 6.1% (45 pts - Cat 4)", climbs[3].String())
	assert.Equal(t, "51.9km-54.7km: 2.8km at 4.0% (48 pts - Cat 4)", climbs[4].String())
	assert.Equal(t, "114.1km-114.7km: 0.6km at 14.3% (119 pts - Cat 3)", climbs[5].String())
}

func TestDetectClimbsSkipsMiddleClaim(t *testing.T) {
	// A climb, a false flat giving a saddle, then a climb again. Claiming the
	// saddle's descent base should leave both climbs detected separately.
	r := ridetest.MustRide("2km at 7% | 1km at -7% | 2km at 7%")
	climbs := r.DetectClimbs([]ride.Range{{Start: 20, End: 20}}, ride.ClimbSlopeMinimum)

	// No free region falls under the min distance except the two climbs.
	assert.Len(t, climbs, 2)
	assert.Equal(t, "0.0km-2.0km: 2.0km at 7.0% (98 pts - Cat 3)", climbs[0].String())
	assert.Equal(t, "3.0km-5.0km: 2.0km at 7.0% (98 pts - Cat 3)", climbs[1].String())
}

func TestDetectClimbsOverlappingClaimDropsClimb(t *testing.T) {
	// Claiming the ascent region entirely swallows the climb.
	r := ridetest.MustRide("2km at 7% | 20km at 0%")
	climbs := r.DetectClimbs([]ride.Range{{Start: 0, End: 40}}, ride.ClimbSlopeMinimum)
	assert.Empty(t, climbs)
}

func TestDetectClimbsIgnoresOutOfRangeClaim(t *testing.T) {
	r := ridetest.MustRide("2km at 7% | 20km at 0%")
	climbs := r.DetectClimbs([]ride.Range{{Start: -5, End: -1}}, ride.ClimbSlopeMinimum)
	require.Len(t, climbs, 1)
	assert.Equal(t, "0.0km-2.0km: 2.0km at 7.0% (98 pts - Cat 3)", climbs[0].String())
}

func TestDetectClimbsWithUnsortedClaimsDropsOverlappingClimb(t *testing.T) {
	// Reproduces ride 6 Chemin des Lauriers bug: DetectClimbs must not depend on
	// caller-provided order. Two official claims out of ID order (Bastides
	// 2140-2627 before Lauriers 1215-1588) caused freeRegions to skip the
	// earlier claim and leave the overlapping Cat 4 1352-1601 visible.
	// Minimal reproduction: two climbs 0-2km and 3-5km separated by a descent.
	r := ridetest.MustRide("2km at 7% | 1km at -7% | 2km at 7%")
	// Both climbs claimed, but in reverse order (mimics ORDER BY id returning 30-50 before 0-20).
	// Sorted input correctly yields 0 detected climbs.
	sorted := []ride.Range{{Start: 0, End: 20}, {Start: 30, End: 50}}
	assert.Empty(t, r.DetectClimbs(sorted, ride.ClimbSlopeMinimum))

	unsorted := []ride.Range{{Start: 30, End: 50}, {Start: 0, End: 20}}
	climbs := r.DetectClimbs(unsorted, ride.ClimbSlopeMinimum)
	// Before fix this fails: freeRegions skips {0,20} because 20 < 30 and returns 1 climb.
	assert.Empty(t, climbs, "unsorted claimed ranges must still suppress overlapping climbs — expected 0, got %v", climbs)
}