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 TestWeekendBriefingBuildsPlanningInputs(t *testing.T) {
	location := mustLocation(t)
	resolved, err := report.Resolve(report.Weekend, report.ResolveRequest{
		Now:      mustParse("2026-05-29T08:00:00-05:00"),
		Location: location,
	})
	if err != nil {
		t.Fatalf("resolve weekend: %v", err)
	}
	precip := 70.0
	gust := 32.0
	summaries := []forecast.DailySummary{
		{
			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: "Showers and thunderstorms",
					Period: timeutil.Period{
						Start: mustParse("2026-05-30T12:00:00-05:00"),
						End:   mustParse("2026-05-30T18:00:00-05:00"),
					},
					MaxPrecipitationProbability: &forecast.TimedValue{
						Value: precip,
						Time:  mustParse("2026-05-30T15:00:00-05:00"),
					},
					PeakWindGust: &forecast.TimedValue{
						Value: gust,
						Time:  mustParse("2026-05-30T16:00:00-05:00"),
					},
					Indicators: forecast.Indicators{Thunder: true, Wind: true},
					HourlyPeriods: []forecast.ForecastPeriod{
						{
							StartTime:       mustParse("2026-05-30T15:00:00-05:00"),
							EndTime:         mustParse("2026-05-30T16:00:00-05:00"),
							TextDescription: "Showers and thunderstorms",
						},
					},
				},
			},
			AlertOverlaps: []forecast.AlertOverlap{{Event: "Flood Watch"}},
			Discussion:    &forecast.Discussion{Product: "discussion", KeyMessages: []string{"Timing may shift."}},
		},
	}

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

	if pkg.Metadata.ReportID != report.Weekend {
		t.Fatalf("ReportID = %q, want weekend", pkg.Metadata.ReportID)
	}
	if pkg.Weekend == nil {
		t.Fatal("Weekend = nil")
	}
	if len(pkg.Weekend.Days) != 1 {
		t.Fatalf("Days length = %d, want 1", len(pkg.Weekend.Days))
	}
	if len(pkg.Weekend.Planning.WorstWeatherWindows) == 0 {
		t.Fatalf("WorstWeatherWindows = %#v, want weather window", pkg.Weekend.Planning.WorstWeatherWindows)
	}
	if !strings.Contains(strings.Join(pkg.Weekend.Planning.RainStormTiming, " "), "thunder") {
		t.Fatalf("RainStormTiming = %#v, want thunder timing", pkg.Weekend.Planning.RainStormTiming)
	}
	if len(pkg.Weekend.Planning.UncertaintyInputs) == 0 {
		t.Fatal("UncertaintyInputs length = 0, want discussion context")
	}
}