package briefing

import (
	"strings"
	"testing"

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

func TestThreeDayBriefingBuildsOutlookDays(t *testing.T) {
	location := mustLocation(t)
	resolved, err := report.Resolve(report.ThreeDay, report.ResolveRequest{
		Now:      mustParse("2026-05-29T06:00:00-05:00"),
		Location: location,
	})
	if err != nil {
		t.Fatalf("resolve 3-day: %v", err)
	}
	precip := 70.0
	gust := 35.0
	summaries := []forecast.DailySummary{
		{
			Date: "2026-05-29",
			Period: timeutil.Period{
				Start: mustParse("2026-05-29T06:00:00-05:00"),
				End:   mustParse("2026-05-30T00:00:00-05:00"),
			},
			Dayparts: []forecast.DaypartSummary{
				{
					Name:              "morning",
					DominantCondition: "Showers and thunderstorms",
					MaxPrecipitationProbability: &forecast.TimedValue{
						Value: precip,
						Time:  mustParse("2026-05-29T09:00:00-05:00"),
					},
					PeakWindGust: &forecast.TimedValue{
						Value: gust,
						Time:  mustParse("2026-05-29T10:00:00-05:00"),
					},
					Indicators: forecast.Indicators{Thunder: true, Wind: true},
				},
			},
			AlertOverlaps: []forecast.AlertOverlap{{Event: "Flood Watch"}},
			Discussion:    &forecast.Discussion{Product: "discussion", KeyMessages: []string{"Unsettled stretch."}},
		},
		{
			Date: "2026-05-30",
			Period: timeutil.Period{
				Start: mustParse("2026-05-30T00:00:00-05:00"),
				End:   mustParse("2026-05-31T00:00:00-05:00"),
			},
			Dayparts: []forecast.DaypartSummary{{Name: "afternoon", DominantCondition: "Clear"}},
		},
	}

	pkg, err := BuildThreeDay(BuildContext{
		Resolved: resolved,
		Units:    "us",
		Timezone: "America/Chicago",
	}, summaries)
	if err != nil {
		t.Fatalf("BuildThreeDay() error = %v", err)
	}

	if pkg.Metadata.ReportID != report.ThreeDay {
		t.Fatalf("ReportID = %q, want three_day", pkg.Metadata.ReportID)
	}
	if pkg.ThreeDay == nil {
		t.Fatal("ThreeDay = nil")
	}
	if len(pkg.ThreeDay.Days) != 2 {
		t.Fatalf("Days length = %d, want 2", len(pkg.ThreeDay.Days))
	}
	first := pkg.ThreeDay.Days[0]
	if !strings.Contains(first.OverallCharacter, "Showers") || !strings.Contains(strings.Join(first.Risks, ","), "thunder") {
		t.Fatalf("first day = %#v, want conditions and risks", first)
	}
	if len(pkg.ThreeDay.RelevantAlerts) != 1 {
		t.Fatalf("RelevantAlerts length = %d, want 1", len(pkg.ThreeDay.RelevantAlerts))
	}
}