package openmeteo

import "testing"

func TestBuildObservationTextDescriptionAndPressurePrecedence(t *testing.T) {
	weatherCode := 2
	pressureMSL := 1016.0
	surfacePressure := 1009.0

	parsed := omResponse{
		Timezone:         "UTC",
		UTCOffsetSeconds: 0,
		Current: omCurrent{
			Time:            "2026-03-16T19:00",
			WeatherCode:     &weatherCode,
			PressureMSL:     &pressureMSL,
			SurfacePressure: &surfacePressure,
		},
	}

	obs, _, err := buildObservation(parsed)
	if err != nil {
		t.Fatalf("buildObservation() error = %v", err)
	}

	if got, want := obs.TextDescription, "Partly Cloudy"; got != want {
		t.Fatalf("TextDescription = %q, want %q", got, want)
	}

	if obs.BarometricPressurePa == nil {
		t.Fatalf("BarometricPressurePa = nil, want non-nil")
	}
	if got, want := *obs.BarometricPressurePa, 101600.0; got != want {
		t.Fatalf("BarometricPressurePa = %v, want %v", got, want)
	}
}

func TestBuildObservationPressureFallbackToSurface(t *testing.T) {
	surfacePressure := 1008.0

	parsed := omResponse{
		Timezone:         "UTC",
		UTCOffsetSeconds: 0,
		Current: omCurrent{
			Time:            "2026-03-16T19:00",
			SurfacePressure: &surfacePressure,
		},
	}

	obs, _, err := buildObservation(parsed)
	if err != nil {
		t.Fatalf("buildObservation() error = %v", err)
	}

	if obs.BarometricPressurePa == nil {
		t.Fatalf("BarometricPressurePa = nil, want non-nil")
	}
	if got, want := *obs.BarometricPressurePa, 100800.0; got != want {
		t.Fatalf("BarometricPressurePa = %v, want %v", got, want)
	}
}