package ride_test

import (
	"fmt"
	"testing"

	"github.com/martinlehoux/biking_home/climb"
	"github.com/martinlehoux/biking_home/ride"
	"github.com/stretchr/testify/assert"
)

var parser = ride.GPXRideParser{}

// describeClimb renders a detected climb as the ride-style
// "start-end: length at slope (pts - cat)" string, so positions are asserted.
func describeClimb(route climb.Route, detected climb.DetectedClimb) string {
	seg := detected.Climb
	startKm := route.Distances[detected.Start] / 1000
	endKm := route.Distances[detected.Start+len(seg.Distances)-1] / 1000
	lengthKm := (seg.Distances[len(seg.Distances)-1] - seg.Distances[0]) / 1000
	slopePercent := climb.Slope(seg.Distances, seg.Elevations) * 100
	pts := int(seg.DifficultyScore())
	return fmt.Sprintf("%.1fkm-%.1fkm: %.1fkm at %.1f%% (%d pts - %s)", startKm, endKm, lengthKm, slopePercent, pts, climb.CategoryOf(seg.DifficultyScore()))
}

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

	assert.Len(t, detected, 6)
	assert.Equal(t, "0.6km-5.6km: 5.0km at 3.5% (92 pts - Cat 3)", describeClimb(r.Route, detected[0]))
	assert.Equal(t, "42.9km-45.2km: 2.3km at 5.0% (74 pts - Cat 4)", describeClimb(r.Route, detected[1]))
	assert.Equal(t, "60.0km-76.4km: 16.4km at 7.2% (977 pts - HC)", describeClimb(r.Route, detected[2]))
	assert.Equal(t, "83.8km-85.9km: 2.1km at 5.4% (79 pts - Cat 4)", describeClimb(r.Route, detected[3]))
	assert.Equal(t, "99.2km-109.3km: 10.2km at 8.4% (751 pts - HC)", describeClimb(r.Route, detected[4]))
	assert.Equal(t, "128.6km-142.2km: 13.6km at 7.8% (930 pts - HC)", describeClimb(r.Route, detected[5]))
}

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

	assert.Len(t, detected, 6)
	assert.Equal(t, "6.8km-9.1km: 2.3km at 4.0% (41 pts - Cat 4)", describeClimb(r.Route, detected[0]))
	assert.Equal(t, "34.7km-37.3km: 2.5km at 5.0% (67 pts - Cat 4)", describeClimb(r.Route, detected[1]))
	assert.Equal(t, "41.9km-43.8km: 1.8km at 4.6% (39 pts - Cat 4)", describeClimb(r.Route, detected[2]))
	assert.Equal(t, "57.6km-60.8km: 3.1km at 6.3% (139 pts - Cat 3)", describeClimb(r.Route, detected[3]))
	assert.Equal(t, "71.7km-74.7km: 3.0km at 5.3% (90 pts - Cat 3)", describeClimb(r.Route, detected[4]))
	assert.Equal(t, "77.4km-78.7km: 1.3km at 5.3% (39 pts - Cat 4)", describeClimb(r.Route, detected[5]))
}

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

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

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

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

// 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)
	detected := climb.Detect(r.Route, nil, climb.ClimbSlopeMinimum)

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