package changes

import (
	"testing"

	"gitea.maximumdirect.net/eric/weatherreporter/internal/briefing"
	"gitea.maximumdirect.net/eric/weatherreporter/internal/forecast"
	"gitea.maximumdirect.net/eric/weatherreporter/internal/report"
)

func TestCompareWeekendDetectsOutlookChanges(t *testing.T) {
	previousTemp := 70.0
	currentTemp := 78.0
	previous := briefing.Package{
		Metadata: briefing.Metadata{ReportID: report.Weekend},
		Weekend: &briefing.Weekend{Days: []briefing.OutlookDay{{
			Date:        "2026-05-30",
			Temperature: forecast.Range{Max: &previousTemp},
		}}},
	}
	current := briefing.Package{
		Metadata: briefing.Metadata{ReportID: report.Weekend},
		Weekend: &briefing.Weekend{Days: []briefing.OutlookDay{{
			Date:        "2026-05-30",
			Temperature: forecast.Range{Max: &currentTemp},
			Dayparts:    []forecast.DaypartSummary{{Indicators: forecast.Indicators{Snow: true}}},
		}}},
	}

	changes, err := CompareWeekend(previous, current, Thresholds{TemperatureDegrees: 5})
	if err != nil {
		t.Fatalf("CompareWeekend() error = %v", err)
	}
	if len(changes) == 0 {
		t.Fatal("changes length = 0, want weekend changes")
	}
	for _, change := range changes {
		if change.Type == "weekend_outlook_snow_risk_change" {
			return
		}
	}
	t.Fatalf("changes = %#v, want snow risk change", changes)
}