package app

import (
	"context"
	"errors"
	"net/http"
	"net/http/httptest"
	"os"
	"path/filepath"
	"strings"
	"testing"
	"time"

	"gitea.maximumdirect.net/eric/weatherreporter/internal/adapters/scriptorium"
	"gitea.maximumdirect.net/eric/weatherreporter/internal/briefing"
	"gitea.maximumdirect.net/eric/weatherreporter/internal/config"
	"gitea.maximumdirect.net/eric/weatherreporter/internal/forecast"
	"gitea.maximumdirect.net/eric/weatherreporter/internal/report"
	"gitea.maximumdirect.net/eric/weatherreporter/internal/state"
)

func TestFetchAndSaveBundle(t *testing.T) {
	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		switch r.URL.Path {
		case "/observations":
			_, _ = w.Write([]byte(`{"data":{"timestamp":"2026-05-29T14:00:00Z","conditionCode":3}}`))
		case "/conditions/current":
			_, _ = w.Write([]byte(`{"data":{"conditionText":"Clear"}}`))
		case "/forecast/hourly":
			_, _ = w.Write([]byte(`{"data":{"issuedAt":"2026-05-29T10:30:00-05:00","product":"hourly","periods":[{"startTime":"2026-05-29T13:00:00-05:00","endTime":"2026-05-29T14:00:00-05:00"}]}}`))
		case "/forecast/narrative":
			_, _ = w.Write([]byte(`{"data":{"issuedAt":"2026-05-29T10:30:00-05:00","product":"narrative","periods":[]}}`))
		case "/alerts/active":
			_, _ = w.Write([]byte(`{"data":{"alerts":[]}}`))
		case "/discussion":
			_, _ = w.Write([]byte(`{"data":{"product":"discussion","issuedAt":"2026-05-29T09:25:00-05:00","keyMessages":[]}}`))
		default:
			http.NotFound(w, r)
		}
	}))
	defer server.Close()

	cfg := config.Defaults()
	cfg.WeatherAPI.BaseURL = server.URL + "/"
	path := filepath.Join(t.TempDir(), "bundle.json")

	bundle, err := FetchAndSaveBundle(context.Background(), FetchBundleRequest{Config: cfg, OutputPath: path})
	if err != nil {
		t.Fatalf("FetchAndSaveBundle() error = %v", err)
	}
	if bundle.Hourly == nil {
		t.Fatal("Hourly = nil, want fetched bundle")
	}
	data, err := os.ReadFile(path)
	if err != nil {
		t.Fatalf("read saved bundle: %v", err)
	}
	if !strings.Contains(string(data), `"product": "hourly"`) {
		t.Fatalf("saved bundle missing hourly product:\n%s", string(data))
	}
}

func TestFetchAndSaveBundleRequiresOutputPath(t *testing.T) {
	_, err := FetchAndSaveBundle(context.Background(), FetchBundleRequest{Config: config.Defaults()})
	if err == nil {
		t.Fatal("FetchAndSaveBundle() error = nil, want output path error")
	}
	if !strings.Contains(err.Error(), "output path") {
		t.Fatalf("error = %q, want output path context", err.Error())
	}
}

func TestGenerateDailyBriefingWritesArtifact(t *testing.T) {
	server := dailyBundleServer(t)
	cfg := config.Defaults()
	cfg.WeatherAPI.BaseURL = server.URL + "/"
	cfg.WeatherAPI.Timezone = "America/Chicago"
	resolved, err := ResolveGenerate(GenerateRequest{
		Config: cfg,
		Report: ReportDaily,
		Date:   mustParse("2026-05-29T12:00:00-05:00"),
	}, mustParse("2026-05-29T05:00:00-05:00"))
	if err != nil {
		t.Fatalf("ResolveGenerate() error = %v", err)
	}
	path := filepath.Join(t.TempDir(), "daily.briefing.json")

	result, err := GenerateDailyBriefing(context.Background(), DailyBriefingRequest{
		Config:     cfg,
		Resolved:   resolved,
		OutputPath: path,
	})
	if err != nil {
		t.Fatalf("GenerateDailyBriefing() error = %v", err)
	}
	if result.OutputPath != path {
		t.Fatalf("OutputPath = %q, want %q", result.OutputPath, path)
	}
	if result.Package.Daily == nil {
		t.Fatal("Daily = nil")
	}
	data, err := os.ReadFile(path)
	if err != nil {
		t.Fatalf("read briefing artifact: %v", err)
	}
	if !strings.Contains(string(data), `"schemaVersion"`) || !strings.Contains(string(data), `"daily"`) {
		t.Fatalf("briefing artifact missing expected fields:\n%s", string(data))
	}
}

func TestGenerateDailyBriefingDefaultPath(t *testing.T) {
	server := dailyBundleServer(t)
	cfg := config.Defaults()
	cfg.WeatherAPI.BaseURL = server.URL + "/"
	cfg.WeatherAPI.Timezone = "America/Chicago"
	cfg.Workspace.Root = t.TempDir()
	resolved, err := ResolveGenerate(GenerateRequest{
		Config: cfg,
		Report: ReportDaily,
		Date:   mustParse("2026-05-29T12:00:00-05:00"),
	}, mustParse("2026-05-29T05:00:00-05:00"))
	if err != nil {
		t.Fatalf("ResolveGenerate() error = %v", err)
	}

	result, err := GenerateDailyBriefing(context.Background(), DailyBriefingRequest{
		Config:   cfg,
		Resolved: resolved,
	})
	if err != nil {
		t.Fatalf("GenerateDailyBriefing() error = %v", err)
	}
	if !strings.HasSuffix(result.OutputPath, filepath.Join("snapshots", "daily", "2026-05-29", "20260529T100000.000000000Z_daily_today.briefing.json")) {
		t.Fatalf("OutputPath = %q, want deterministic daily briefing path", result.OutputPath)
	}
}

func TestGenerateDailyReportWritesReportAndPreflight(t *testing.T) {
	server := dailyBundleServer(t)
	cfg := config.Defaults()
	cfg.WeatherAPI.BaseURL = server.URL + "/"
	cfg.WeatherAPI.Timezone = "America/Chicago"
	cfg.Workspace.Root = t.TempDir()
	resolved, err := ResolveGenerate(GenerateRequest{
		Config: cfg,
		Report: ReportDaily,
		Date:   mustParse("2026-05-29T12:00:00-05:00"),
	}, mustParse("2026-05-29T05:00:00-05:00"))
	if err != nil {
		t.Fatalf("ResolveGenerate() error = %v", err)
	}
	renderer := &recordingRenderer{
		renderResult: &scriptorium.RenderResult{
			Command:  []string{"scriptorium", "render"},
			Stdout:   `{"prepared":true}`,
			ExitCode: 0,
		},
		runResult: &scriptorium.RunResult{
			Command:    []string{"scriptorium", "run"},
			Stderr:     "wrote report",
			ExitCode:   0,
			OutputPath: "",
		},
		runBody: "# Daily Report\n\nRain this morning.\n",
	}
	outputPath := filepath.Join(t.TempDir(), "daily.md")

	result, err := GenerateDailyReport(context.Background(), DailyReportRequest{
		Config:     cfg,
		Resolved:   resolved,
		OutputPath: outputPath,
		Renderer:   renderer,
	})
	if err != nil {
		t.Fatalf("GenerateDailyReport() error = %v", err)
	}

	if renderer.renderCalls != 1 {
		t.Fatalf("render calls = %d, want 1", renderer.renderCalls)
	}
	if renderer.runCalls != 1 {
		t.Fatalf("run calls = %d, want 1", renderer.runCalls)
	}
	if renderer.renderRequest.PromptID != "weather.daily_report" {
		t.Fatalf("render PromptID = %q, want weather.daily_report", renderer.renderRequest.PromptID)
	}
	if renderer.renderRequest.DataPackagePath != result.DataPackagePath {
		t.Fatalf("render DataPackagePath = %q, want managed path %q", renderer.renderRequest.DataPackagePath, result.DataPackagePath)
	}
	if renderer.runRequest.DataPackagePath != result.DataPackagePath {
		t.Fatalf("run DataPackagePath = %q, want managed path %q", renderer.runRequest.DataPackagePath, result.DataPackagePath)
	}
	if renderer.runRequest.OutputPath != result.ReportPath {
		t.Fatalf("run OutputPath = %q, want managed report path %q", renderer.runRequest.OutputPath, result.ReportPath)
	}
	for _, path := range []string{result.BriefingPath, result.DataPackagePath, result.PreflightPath, result.ReportPath, result.MetadataPath} {
		if _, err := os.Stat(path); err != nil {
			t.Fatalf("expected artifact %q: %v", path, err)
		}
	}
	if _, err := os.Stat(outputPath); err != nil {
		t.Fatalf("expected requested report output %q: %v", outputPath, err)
	}
	data, err := os.ReadFile(result.DataPackagePath)
	if err != nil {
		t.Fatalf("read data package: %v", err)
	}
	if !strings.Contains(string(data), `"recentChanges"`) || !strings.Contains(string(data), `data_package.v1`) {
		t.Fatalf("data package missing expected content:\n%s", string(data))
	}
	preflight, err := os.ReadFile(result.PreflightPath)
	if err != nil {
		t.Fatalf("read preflight: %v", err)
	}
	if !strings.Contains(string(preflight), `prepared`) {
		t.Fatalf("preflight output missing render stdout:\n%s", string(preflight))
	}
	if result.Metadata.RunID != resolved.Metadata().RunID {
		t.Fatalf("metadata RunID = %q, want %q", result.Metadata.RunID, resolved.Metadata().RunID)
	}
	if result.Metadata.BriefingPath != result.BriefingPath || result.Metadata.DataPackagePath != result.DataPackagePath {
		t.Fatalf("metadata does not link artifact paths: %#v", result.Metadata)
	}
	if result.Metadata.RenderedReportPath != result.ReportPath {
		t.Fatalf("metadata rendered report path = %q, want %q", result.Metadata.RenderedReportPath, result.ReportPath)
	}
	if len(result.RecentChanges) != 0 {
		t.Fatalf("RecentChanges = %#v, want none without prior snapshot", result.RecentChanges)
	}
	report, err := os.ReadFile(outputPath)
	if err != nil {
		t.Fatalf("read report output: %v", err)
	}
	if !strings.Contains(string(report), "# Daily Report") {
		t.Fatalf("report output missing markdown:\n%s", string(report))
	}
}

func TestGenerateDailyReportPersistsFailedPreflight(t *testing.T) {
	server := dailyBundleServer(t)
	cfg := config.Defaults()
	cfg.WeatherAPI.BaseURL = server.URL + "/"
	cfg.WeatherAPI.Timezone = "America/Chicago"
	cfg.Workspace.Root = t.TempDir()
	resolved, err := ResolveGenerate(GenerateRequest{
		Config: cfg,
		Report: ReportDaily,
		Date:   mustParse("2026-05-29T12:00:00-05:00"),
	}, mustParse("2026-05-29T05:00:00-05:00"))
	if err != nil {
		t.Fatalf("ResolveGenerate() error = %v", err)
	}
	renderer := &recordingRenderer{
		renderResult: &scriptorium.RenderResult{
			Command:  []string{"scriptorium", "render"},
			Stderr:   "render failed",
			ExitCode: 1,
		},
		err: errors.New("scriptorium render exited with code 1: render failed"),
	}

	_, err = GenerateDailyReport(context.Background(), DailyReportRequest{
		Config:   cfg,
		Resolved: resolved,
		Renderer: renderer,
	})
	if err == nil {
		t.Fatal("GenerateDailyReport() error = nil, want render error")
	}
	store, err := state.NewFilesystemStore(cfg.Workspace)
	if err != nil {
		t.Fatalf("NewFilesystemStore() error = %v", err)
	}
	paths, err := store.Paths(resolved)
	if err != nil {
		t.Fatalf("Paths() error = %v", err)
	}
	preflightPath := paths.Preflight
	preflight, readErr := os.ReadFile(preflightPath)
	if readErr != nil {
		t.Fatalf("read failed preflight: %v", readErr)
	}
	if !strings.Contains(string(preflight), `"exitCode": 1`) {
		t.Fatalf("failed preflight was not persisted:\n%s", string(preflight))
	}
	if _, err := os.Stat(paths.Metadata); err != nil {
		t.Fatalf("expected metadata for failed preflight %q: %v", paths.Metadata, err)
	}
	if renderer.runCalls != 0 {
		t.Fatalf("run calls = %d, want none after failed preflight", renderer.runCalls)
	}
}

func TestGenerateDailyReportReturnsRunErrorAfterPreflight(t *testing.T) {
	server := dailyBundleServer(t)
	cfg := config.Defaults()
	cfg.WeatherAPI.BaseURL = server.URL + "/"
	cfg.WeatherAPI.Timezone = "America/Chicago"
	cfg.Workspace.Root = t.TempDir()
	resolved, err := ResolveGenerate(GenerateRequest{
		Config: cfg,
		Report: ReportDaily,
		Date:   mustParse("2026-05-29T12:00:00-05:00"),
	}, mustParse("2026-05-29T05:00:00-05:00"))
	if err != nil {
		t.Fatalf("ResolveGenerate() error = %v", err)
	}
	renderer := &recordingRenderer{
		renderResult: &scriptorium.RenderResult{ExitCode: 0},
		runResult: &scriptorium.RunResult{
			Stderr:   "validation failed",
			ExitCode: 2,
		},
		runErr:  errors.New("scriptorium run exited with code 2: validation failed"),
		runBody: "# Daily Report\n",
	}

	_, err = GenerateDailyReport(context.Background(), DailyReportRequest{
		Config:   cfg,
		Resolved: resolved,
		Renderer: renderer,
	})
	if err == nil {
		t.Fatal("GenerateDailyReport() error = nil, want run error")
	}
	if renderer.renderCalls != 1 || renderer.runCalls != 1 {
		t.Fatalf("calls render=%d run=%d, want one of each", renderer.renderCalls, renderer.runCalls)
	}
	store, err := state.NewFilesystemStore(cfg.Workspace)
	if err != nil {
		t.Fatalf("NewFilesystemStore() error = %v", err)
	}
	paths, err := store.Paths(resolved)
	if err != nil {
		t.Fatalf("Paths() error = %v", err)
	}
	if _, err := os.Stat(paths.Metadata); err != nil {
		t.Fatalf("expected metadata for failed run %q: %v", paths.Metadata, err)
	}
	if _, err := os.Stat(paths.RenderedReport); err != nil {
		t.Fatalf("expected report from validation exit %q: %v", paths.RenderedReport, err)
	}
}

func TestGenerateDailyReportIncludesRecentChangesFromPriorSnapshot(t *testing.T) {
	server := dailyBundleServer(t)
	cfg := config.Defaults()
	cfg.WeatherAPI.BaseURL = server.URL + "/"
	cfg.WeatherAPI.Timezone = "America/Chicago"
	cfg.Workspace.Root = t.TempDir()
	store, err := state.NewFilesystemStore(cfg.Workspace)
	if err != nil {
		t.Fatalf("NewFilesystemStore() error = %v", err)
	}
	priorResolved, err := ResolveGenerate(GenerateRequest{
		Config: cfg,
		Report: ReportDaily,
		Date:   mustParse("2026-05-29T12:00:00-05:00"),
	}, mustParse("2026-05-29T04:00:00-05:00"))
	if err != nil {
		t.Fatalf("ResolveGenerate(prior) error = %v", err)
	}
	priorBriefing := priorDailyBriefing(priorResolved)
	priorBriefingPath, err := store.SaveBriefing(context.Background(), priorResolved, priorBriefing)
	if err != nil {
		t.Fatalf("SaveBriefing() error = %v", err)
	}
	priorPaths, err := store.Paths(priorResolved)
	if err != nil {
		t.Fatalf("Paths() error = %v", err)
	}
	_, err = store.SaveMetadata(context.Background(), state.BuildMetadata(priorResolved, priorBriefing, state.ArtifactPaths{
		Briefing:       priorBriefingPath,
		DataPackage:    priorPaths.DataPackage,
		Preflight:      priorPaths.Preflight,
		RenderedReport: priorPaths.RenderedReport,
	}))
	if err != nil {
		t.Fatalf("SaveMetadata() error = %v", err)
	}

	currentResolved, err := ResolveGenerate(GenerateRequest{
		Config: cfg,
		Report: ReportDaily,
		Date:   mustParse("2026-05-29T12:00:00-05:00"),
	}, mustParse("2026-05-29T05:00:00-05:00"))
	if err != nil {
		t.Fatalf("ResolveGenerate(current) error = %v", err)
	}
	renderer := &recordingRenderer{
		renderResult: &scriptorium.RenderResult{ExitCode: 0},
		runResult:    &scriptorium.RunResult{ExitCode: 0},
		runBody:      "# Daily Report\n",
	}

	result, err := GenerateDailyReport(context.Background(), DailyReportRequest{
		Config:   cfg,
		Resolved: currentResolved,
		Renderer: renderer,
		Store:    store,
	})
	if err != nil {
		t.Fatalf("GenerateDailyReport() error = %v", err)
	}
	if len(result.RecentChanges) == 0 {
		t.Fatal("RecentChanges length = 0, want changes from prior snapshot")
	}
	data, err := os.ReadFile(result.DataPackagePath)
	if err != nil {
		t.Fatalf("read data package: %v", err)
	}
	if !strings.Contains(string(data), "alert_added") || !strings.Contains(string(data), "temperature_shift") {
		t.Fatalf("data package missing recent changes:\n%s", string(data))
	}
}

func TestGenerateTomorrowReportUsesTomorrowBriefingDate(t *testing.T) {
	server := dailyBundleServer(t)
	cfg := config.Defaults()
	cfg.WeatherAPI.BaseURL = server.URL + "/"
	cfg.WeatherAPI.Timezone = "America/Chicago"
	cfg.Workspace.Root = t.TempDir()
	resolved, err := ResolveGenerate(GenerateRequest{
		Config: cfg,
		Report: ReportTomorrow,
	}, mustParse("2026-05-29T18:00:00-05:00"))
	if err != nil {
		t.Fatalf("ResolveGenerate() error = %v", err)
	}
	renderer := &recordingRenderer{
		renderResult: &scriptorium.RenderResult{ExitCode: 0},
		runResult:    &scriptorium.RunResult{ExitCode: 0},
		runBody:      "# Tomorrow Planning Brief\n",
	}

	result, err := GenerateDailyReport(context.Background(), DailyReportRequest{
		Config:   cfg,
		Resolved: resolved,
		Renderer: renderer,
	})
	if err != nil {
		t.Fatalf("GenerateDailyReport() error = %v", err)
	}

	if result.Briefing.Metadata.ReportID != report.DailyTomorrow || result.Briefing.Metadata.Variant != "tomorrow" {
		t.Fatalf("metadata report/variant = %q/%q, want tomorrow", result.Briefing.Metadata.ReportID, result.Briefing.Metadata.Variant)
	}
	if result.Briefing.Daily.ForecastSummaryDate != "2026-05-30" {
		t.Fatalf("ForecastSummaryDate = %q, want 2026-05-30", result.Briefing.Daily.ForecastSummaryDate)
	}
	if result.Briefing.Daily.Planning == nil {
		t.Fatal("Planning = nil, want tomorrow planning inputs")
	}
	if !strings.Contains(filepath.Base(result.ReportPath), "daily_tomorrow") {
		t.Fatalf("ReportPath = %q, want managed tomorrow report path", result.ReportPath)
	}
}

func TestTomorrowReportCanCompareAgainstPriorDailySnapshot(t *testing.T) {
	server := dailyBundleServer(t)
	cfg := config.Defaults()
	cfg.WeatherAPI.BaseURL = server.URL + "/"
	cfg.WeatherAPI.Timezone = "America/Chicago"
	cfg.Workspace.Root = t.TempDir()
	store, err := state.NewFilesystemStore(cfg.Workspace)
	if err != nil {
		t.Fatalf("NewFilesystemStore() error = %v", err)
	}
	priorResolved, err := ResolveGenerate(GenerateRequest{
		Config: cfg,
		Report: ReportDaily,
		Date:   mustParse("2026-05-30T12:00:00-05:00"),
	}, mustParse("2026-05-29T17:00:00-05:00"))
	if err != nil {
		t.Fatalf("ResolveGenerate(prior) error = %v", err)
	}
	priorBriefing := priorDailyBriefing(priorResolved)
	priorBriefingPath, err := store.SaveBriefing(context.Background(), priorResolved, priorBriefing)
	if err != nil {
		t.Fatalf("SaveBriefing() error = %v", err)
	}
	priorPaths, err := store.Paths(priorResolved)
	if err != nil {
		t.Fatalf("Paths() error = %v", err)
	}
	_, err = store.SaveMetadata(context.Background(), state.BuildMetadata(priorResolved, priorBriefing, state.ArtifactPaths{
		Briefing:       priorBriefingPath,
		DataPackage:    priorPaths.DataPackage,
		Preflight:      priorPaths.Preflight,
		RenderedReport: priorPaths.RenderedReport,
	}))
	if err != nil {
		t.Fatalf("SaveMetadata() error = %v", err)
	}

	currentResolved, err := ResolveGenerate(GenerateRequest{
		Config: cfg,
		Report: ReportTomorrow,
	}, mustParse("2026-05-29T18:00:00-05:00"))
	if err != nil {
		t.Fatalf("ResolveGenerate(current) error = %v", err)
	}
	renderer := &recordingRenderer{
		renderResult: &scriptorium.RenderResult{ExitCode: 0},
		runResult:    &scriptorium.RunResult{ExitCode: 0},
		runBody:      "# Tomorrow Planning Brief\n",
	}

	result, err := GenerateDailyReport(context.Background(), DailyReportRequest{
		Config:   cfg,
		Resolved: currentResolved,
		Renderer: renderer,
		Store:    store,
	})
	if err != nil {
		t.Fatalf("GenerateDailyReport() error = %v", err)
	}
	if result.PriorSnapshot == nil {
		t.Fatal("PriorSnapshot = nil, want compatible prior daily snapshot")
	}
	if len(result.RecentChanges) == 0 {
		t.Fatal("RecentChanges length = 0, want changes from compatible prior daily snapshot")
	}
}

func TestGenerateThreeDayReportWritesReportAndRecentChanges(t *testing.T) {
	server := dailyBundleServer(t)
	cfg := config.Defaults()
	cfg.WeatherAPI.BaseURL = server.URL + "/"
	cfg.WeatherAPI.Timezone = "America/Chicago"
	cfg.Workspace.Root = t.TempDir()
	store, err := state.NewFilesystemStore(cfg.Workspace)
	if err != nil {
		t.Fatalf("NewFilesystemStore() error = %v", err)
	}
	priorResolved, err := ResolveGenerate(GenerateRequest{
		Config: cfg,
		Report: ReportThreeDay,
	}, mustParse("2026-05-29T04:00:00-05:00"))
	if err != nil {
		t.Fatalf("ResolveGenerate(prior) error = %v", err)
	}
	priorBriefing := priorThreeDayBriefing(priorResolved)
	priorBriefingPath, err := store.SaveBriefing(context.Background(), priorResolved, priorBriefing)
	if err != nil {
		t.Fatalf("SaveBriefing() error = %v", err)
	}
	priorPaths, err := store.Paths(priorResolved)
	if err != nil {
		t.Fatalf("Paths() error = %v", err)
	}
	_, err = store.SaveMetadata(context.Background(), state.BuildMetadata(priorResolved, priorBriefing, state.ArtifactPaths{
		Briefing:       priorBriefingPath,
		DataPackage:    priorPaths.DataPackage,
		Preflight:      priorPaths.Preflight,
		RenderedReport: priorPaths.RenderedReport,
	}))
	if err != nil {
		t.Fatalf("SaveMetadata() error = %v", err)
	}
	currentResolved, err := ResolveGenerate(GenerateRequest{
		Config: cfg,
		Report: ReportThreeDay,
	}, mustParse("2026-05-29T05:00:00-05:00"))
	if err != nil {
		t.Fatalf("ResolveGenerate(current) error = %v", err)
	}
	renderer := &recordingRenderer{
		renderResult: &scriptorium.RenderResult{ExitCode: 0},
		runResult:    &scriptorium.RunResult{ExitCode: 0},
		runBody:      "# 3-Day Outlook\n",
	}

	result, err := GenerateReport(context.Background(), ReportRequest{
		Config:   cfg,
		Resolved: currentResolved,
		Renderer: renderer,
		Store:    store,
	})
	if err != nil {
		t.Fatalf("GenerateReport() error = %v", err)
	}

	if result.Briefing.ThreeDay == nil {
		t.Fatal("ThreeDay = nil")
	}
	if len(result.Briefing.ThreeDay.Days) != 3 {
		t.Fatalf("ThreeDay days = %d, want 3", len(result.Briefing.ThreeDay.Days))
	}
	if renderer.renderRequest.PromptID != "weather.three_day_outlook" {
		t.Fatalf("render PromptID = %q, want weather.three_day_outlook", renderer.renderRequest.PromptID)
	}
	if result.PriorSnapshot == nil {
		t.Fatal("PriorSnapshot = nil, want prior 3-day snapshot")
	}
	if len(result.RecentChanges) == 0 {
		t.Fatal("RecentChanges length = 0, want changes from prior 3-day snapshot")
	}
}

func TestGenerateWeekendReportWritesReportAndRecentChanges(t *testing.T) {
	server := dailyBundleServer(t)
	cfg := config.Defaults()
	cfg.WeatherAPI.BaseURL = server.URL + "/"
	cfg.WeatherAPI.Timezone = "America/Chicago"
	cfg.Workspace.Root = t.TempDir()
	store, err := state.NewFilesystemStore(cfg.Workspace)
	if err != nil {
		t.Fatalf("NewFilesystemStore() error = %v", err)
	}
	priorResolved, err := ResolveGenerate(GenerateRequest{
		Config: cfg,
		Report: ReportWeekend,
	}, mustParse("2026-05-29T04:00:00-05:00"))
	if err != nil {
		t.Fatalf("ResolveGenerate(prior) error = %v", err)
	}
	priorBriefing := priorWeekendBriefing(priorResolved)
	priorBriefingPath, err := store.SaveBriefing(context.Background(), priorResolved, priorBriefing)
	if err != nil {
		t.Fatalf("SaveBriefing() error = %v", err)
	}
	priorPaths, err := store.Paths(priorResolved)
	if err != nil {
		t.Fatalf("Paths() error = %v", err)
	}
	_, err = store.SaveMetadata(context.Background(), state.BuildMetadata(priorResolved, priorBriefing, state.ArtifactPaths{
		Briefing:       priorBriefingPath,
		DataPackage:    priorPaths.DataPackage,
		Preflight:      priorPaths.Preflight,
		RenderedReport: priorPaths.RenderedReport,
	}))
	if err != nil {
		t.Fatalf("SaveMetadata() error = %v", err)
	}
	currentResolved, err := ResolveGenerate(GenerateRequest{
		Config: cfg,
		Report: ReportWeekend,
	}, mustParse("2026-05-29T05:00:00-05:00"))
	if err != nil {
		t.Fatalf("ResolveGenerate(current) error = %v", err)
	}
	renderer := &recordingRenderer{
		renderResult: &scriptorium.RenderResult{ExitCode: 0},
		runResult:    &scriptorium.RunResult{ExitCode: 0},
		runBody:      "# Weekend Outlook\n",
	}

	result, err := GenerateReport(context.Background(), ReportRequest{
		Config:   cfg,
		Resolved: currentResolved,
		Renderer: renderer,
		Store:    store,
	})
	if err != nil {
		t.Fatalf("GenerateReport() error = %v", err)
	}

	if result.Briefing.Weekend == nil {
		t.Fatal("Weekend = nil")
	}
	if len(result.Briefing.Weekend.Days) != 3 {
		t.Fatalf("Weekend days = %d, want 3", len(result.Briefing.Weekend.Days))
	}
	if renderer.renderRequest.PromptID != "weather.weekend_outlook" {
		t.Fatalf("render PromptID = %q, want weather.weekend_outlook", renderer.renderRequest.PromptID)
	}
	if result.PriorSnapshot == nil {
		t.Fatal("PriorSnapshot = nil, want prior weekend snapshot")
	}
	if len(result.RecentChanges) == 0 {
		t.Fatal("RecentChanges length = 0, want changes from prior weekend snapshot")
	}
}

func TestGenerateStormReportWritesReport(t *testing.T) {
	server := dailyBundleServer(t)
	cfg := config.Defaults()
	cfg.WeatherAPI.BaseURL = server.URL + "/"
	cfg.WeatherAPI.Timezone = "America/Chicago"
	cfg.Workspace.Root = t.TempDir()
	resolved, err := ResolveGenerate(GenerateRequest{
		Config:     cfg,
		Report:     ReportStorm,
		StormStart: mustParse("2026-05-29T06:00:00-05:00"),
		StormEnd:   mustParse("2026-05-29T10:00:00-05:00"),
	}, mustParse("2026-05-29T05:00:00-05:00"))
	if err != nil {
		t.Fatalf("ResolveGenerate() error = %v", err)
	}
	renderer := &recordingRenderer{
		renderResult: &scriptorium.RenderResult{ExitCode: 0},
		runResult:    &scriptorium.RunResult{ExitCode: 0},
		runBody:      "# Storm Report\n",
	}
	outputPath := filepath.Join(t.TempDir(), "storm.md")

	result, err := GenerateReport(context.Background(), ReportRequest{
		Config:     cfg,
		Resolved:   resolved,
		OutputPath: outputPath,
		Renderer:   renderer,
	})
	if err != nil {
		t.Fatalf("GenerateReport() error = %v", err)
	}

	if result.Briefing.Storm == nil {
		t.Fatal("Storm = nil")
	}
	if renderer.renderRequest.PromptID != "weather.storm_report" {
		t.Fatalf("render PromptID = %q, want weather.storm_report", renderer.renderRequest.PromptID)
	}
	if len(result.Briefing.Storm.HourlyPeriods) == 0 || len(result.Briefing.Storm.NarrativePeriods) == 0 {
		t.Fatalf("selected source periods hourly/narrative = %d/%d, want relevant periods", len(result.Briefing.Storm.HourlyPeriods), len(result.Briefing.Storm.NarrativePeriods))
	}
	if _, err := os.Stat(outputPath); err != nil {
		t.Fatalf("expected requested report output %q: %v", outputPath, err)
	}
	data, err := os.ReadFile(result.DataPackagePath)
	if err != nil {
		t.Fatalf("read data package: %v", err)
	}
	if !strings.Contains(string(data), `"storm"`) || !strings.Contains(string(data), `"weather.storm_report"`) {
		t.Fatalf("data package missing storm content:\n%s", string(data))
	}
}

func TestInspectGeneratedReportArtifacts(t *testing.T) {
	server := dailyBundleServer(t)
	cfg := config.Defaults()
	cfg.WeatherAPI.BaseURL = server.URL + "/"
	cfg.WeatherAPI.Timezone = "America/Chicago"
	cfg.Workspace.Root = t.TempDir()
	resolved, err := ResolveGenerate(GenerateRequest{
		Config: cfg,
		Report: ReportDaily,
		Date:   mustParse("2026-05-29T12:00:00-05:00"),
	}, mustParse("2026-05-29T05:00:00-05:00"))
	if err != nil {
		t.Fatalf("ResolveGenerate() error = %v", err)
	}
	renderer := &recordingRenderer{
		renderResult: &scriptorium.RenderResult{ExitCode: 0},
		runResult:    &scriptorium.RunResult{ExitCode: 0},
		runBody:      "# Daily Report\n",
	}
	result, err := GenerateReport(context.Background(), ReportRequest{
		Config:   cfg,
		Resolved: resolved,
		Renderer: renderer,
	})
	if err != nil {
		t.Fatalf("GenerateReport() error = %v", err)
	}

	records, err := InspectReports(context.Background(), InspectReportsRequest{Config: cfg, Limit: 1})
	if err != nil {
		t.Fatalf("InspectReports() error = %v", err)
	}
	if len(records) != 1 || records[0].RunID != result.Metadata.RunID {
		t.Fatalf("records = %#v, want generated run", records)
	}
	metadata, err := InspectMetadata(context.Background(), InspectRunRequest{Config: cfg, RunID: result.Metadata.RunID})
	if err != nil {
		t.Fatalf("InspectMetadata() error = %v", err)
	}
	if metadata.BriefingPath != result.BriefingPath || metadata.DataPackagePath != result.DataPackagePath {
		t.Fatalf("metadata paths = %#v, want generated artifact paths", metadata)
	}
	briefingPackage, err := InspectBriefing(context.Background(), InspectRunRequest{Config: cfg, RunID: result.Metadata.RunID})
	if err != nil {
		t.Fatalf("InspectBriefing() error = %v", err)
	}
	if briefingPackage.Metadata.RunID != result.Metadata.RunID {
		t.Fatalf("briefing RunID = %q, want %q", briefingPackage.Metadata.RunID, result.Metadata.RunID)
	}
	dataPackage, err := InspectDataPackage(context.Background(), InspectRunRequest{Config: cfg, RunID: result.Metadata.RunID})
	if err != nil {
		t.Fatalf("InspectDataPackage() error = %v", err)
	}
	if dataPackage.RunID != result.Metadata.RunID {
		t.Fatalf("data package RunID = %q, want %q", dataPackage.RunID, result.Metadata.RunID)
	}
	sources, err := InspectSources(context.Background(), InspectRunRequest{Config: cfg, RunID: result.Metadata.RunID})
	if err != nil {
		t.Fatalf("InspectSources() error = %v", err)
	}
	if len(sources.Sources) == 0 || len(sources.Warnings) == 0 {
		t.Fatalf("sources = %#v, want provenance and warnings", sources)
	}
}

func TestInspectPriorSnapshot(t *testing.T) {
	server := dailyBundleServer(t)
	cfg := config.Defaults()
	cfg.WeatherAPI.BaseURL = server.URL + "/"
	cfg.WeatherAPI.Timezone = "America/Chicago"
	cfg.Workspace.Root = t.TempDir()
	store, err := state.NewFilesystemStore(cfg.Workspace)
	if err != nil {
		t.Fatalf("NewFilesystemStore() error = %v", err)
	}
	priorResolved, err := ResolveGenerate(GenerateRequest{
		Config: cfg,
		Report: ReportDaily,
		Date:   mustParse("2026-05-29T12:00:00-05:00"),
	}, mustParse("2026-05-29T04:00:00-05:00"))
	if err != nil {
		t.Fatalf("ResolveGenerate(prior) error = %v", err)
	}
	currentResolved, err := ResolveGenerate(GenerateRequest{
		Config: cfg,
		Report: ReportDaily,
		Date:   mustParse("2026-05-29T12:00:00-05:00"),
	}, mustParse("2026-05-29T05:00:00-05:00"))
	if err != nil {
		t.Fatalf("ResolveGenerate(current) error = %v", err)
	}
	renderer := &recordingRenderer{
		renderResult: &scriptorium.RenderResult{ExitCode: 0},
		runResult:    &scriptorium.RunResult{ExitCode: 0},
		runBody:      "# Daily Report\n",
	}
	if _, err := GenerateReport(context.Background(), ReportRequest{Config: cfg, Resolved: priorResolved, Renderer: renderer, Store: store}); err != nil {
		t.Fatalf("GenerateReport(prior) error = %v", err)
	}
	current, err := GenerateReport(context.Background(), ReportRequest{Config: cfg, Resolved: currentResolved, Renderer: renderer, Store: store})
	if err != nil {
		t.Fatalf("GenerateReport(current) error = %v", err)
	}

	prior, err := InspectPriorSnapshot(context.Background(), InspectRunRequest{Config: cfg, RunID: current.Metadata.RunID})
	if err != nil {
		t.Fatalf("InspectPriorSnapshot() error = %v", err)
	}
	if prior == nil || prior.Metadata.RunID != priorResolved.Metadata().RunID {
		t.Fatalf("prior = %#v, want previous generated run", prior)
	}
}

func TestInspectMissingMetadata(t *testing.T) {
	cfg := config.Defaults()
	cfg.Workspace.Root = t.TempDir()

	_, err := InspectMetadata(context.Background(), InspectRunRequest{Config: cfg, RunID: "missing"})
	if err == nil {
		t.Fatal("InspectMetadata() error = nil, want missing metadata error")
	}
	if !strings.Contains(err.Error(), "metadata for run id") {
		t.Fatalf("error = %q, want missing run id context", err.Error())
	}
}

func TestResolveGenerateMapsCommandToReportDefinition(t *testing.T) {
	cfg := config.Defaults()
	cfg.WeatherAPI.Timezone = "America/Chicago"
	now := mustParse("2026-05-29T18:00:00-05:00")

	resolved, err := ResolveGenerate(GenerateRequest{
		Config: cfg,
		Report: ReportTomorrow,
	}, now)
	if err != nil {
		t.Fatalf("ResolveGenerate() error = %v", err)
	}
	if resolved.Definition.ID != report.DailyTomorrow {
		t.Fatalf("ID = %q, want daily_tomorrow", resolved.Definition.ID)
	}
	if resolved.Definition.PromptID != "weather.daily_report" {
		t.Fatalf("PromptID = %q, want weather.daily_report", resolved.Definition.PromptID)
	}
	if got := resolved.ValidPeriod.Start.Format("2006-01-02"); got != "2026-05-30" {
		t.Fatalf("valid start date = %s, want 2026-05-30", got)
	}
}

func dailyBundleServer(t *testing.T) *httptest.Server {
	t.Helper()
	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		switch r.URL.Path {
		case "/observations":
			_, _ = w.Write([]byte(`{"data":{"timestamp":"2026-05-29T14:00:00Z","conditionCode":3}}`))
		case "/conditions/current":
			_, _ = w.Write([]byte(`{"data":{"conditionText":"Clear"}}`))
		case "/forecast/hourly":
			_, _ = w.Write([]byte(`{"data":{"locationId":"test-grid","locationName":"Testville","issuedAt":"2026-05-29T10:30:00-05:00","product":"hourly","periods":[{"startTime":"2026-05-29T06:00:00-05:00","endTime":"2026-05-29T07:00:00-05:00","textDescription":"Showers and thunderstorms","temperatureF":66,"probabilityOfPrecipitationPercent":80,"windGustMph":32},{"startTime":"2026-05-30T06:00:00-05:00","endTime":"2026-05-30T07:00:00-05:00","textDescription":"Showers and thunderstorms","temperatureF":66,"probabilityOfPrecipitationPercent":80,"windGustMph":32}]}}`))
		case "/forecast/narrative":
			_, _ = w.Write([]byte(`{"data":{"issuedAt":"2026-05-29T10:30:00-05:00","product":"narrative","periods":[{"startTime":"2026-05-29T06:00:00-05:00","endTime":"2026-05-29T18:00:00-05:00","textDescription":"Morning storms, then partly sunny."},{"startTime":"2026-05-30T06:00:00-05:00","endTime":"2026-05-30T18:00:00-05:00","textDescription":"Tomorrow starts stormy."}]}}`))
		case "/alerts/active":
			_, _ = w.Write([]byte(`{"data":{"alerts":[{"event":"Flood Watch","effective":"2026-05-29T05:00:00-05:00","expires":"2026-05-29T09:00:00-05:00"}]}}`))
		case "/discussion":
			_, _ = w.Write([]byte(`{"data":{"product":"discussion","issuedAt":"2026-05-29T09:25:00-05:00","keyMessages":["Storms are most likely during the morning."]}}`))
		default:
			http.NotFound(w, r)
		}
	}))
	t.Cleanup(server.Close)
	return server
}

func TestResolveGenerateStorm(t *testing.T) {
	cfg := config.Defaults()
	cfg.WeatherAPI.Timezone = "America/Chicago"
	now := mustParse("2026-05-29T12:00:00-05:00")
	start := mustParse("2026-05-29T18:00:00-05:00")
	end := mustParse("2026-05-30T06:00:00-05:00")

	resolved, err := ResolveGenerate(GenerateRequest{
		Config:     cfg,
		Report:     ReportStorm,
		StormStart: start,
		StormEnd:   end,
	}, now)
	if err != nil {
		t.Fatalf("ResolveGenerate() error = %v", err)
	}
	if resolved.Definition.ID != report.Storm {
		t.Fatalf("ID = %q, want storm", resolved.Definition.ID)
	}
	if !resolved.ValidPeriod.Start.Equal(start) || !resolved.ValidPeriod.End.Equal(end) {
		t.Fatalf("period = %#v, want storm window", resolved.ValidPeriod)
	}
}

func TestResolveBatchMorningSkipsWeekendOnSunday(t *testing.T) {
	cfg := config.Defaults()
	cfg.WeatherAPI.Timezone = "America/Chicago"
	now := mustParse("2026-05-31T06:00:00-05:00")

	resolved, err := ResolveBatch(BatchRequest{Config: cfg, Batch: BatchMorning}, now)
	if err != nil {
		t.Fatalf("ResolveBatch() error = %v", err)
	}
	if len(resolved) != 2 {
		t.Fatalf("resolved length = %d, want 2", len(resolved))
	}
	for _, item := range resolved {
		if item.Definition.ID == report.Weekend {
			t.Fatal("morning batch included weekend on Sunday")
		}
	}
}

func TestRunBatchContinuesAfterReportFailure(t *testing.T) {
	server := dailyBundleServer(t)
	cfg := config.Defaults()
	cfg.WeatherAPI.BaseURL = server.URL + "/"
	cfg.WeatherAPI.Timezone = "America/Chicago"
	cfg.Workspace.Root = t.TempDir()
	renderer := &selectiveRenderer{
		failRenderPrompt: "weather.three_day_outlook",
		runBody:          "# Batch Report\n",
	}

	result, err := RunBatchDetailed(context.Background(), BatchRequest{
		Config:   cfg,
		Batch:    BatchMorning,
		Now:      mustParse("2026-05-29T05:00:00-05:00"),
		Renderer: renderer,
	})
	if err != nil {
		t.Fatalf("RunBatchDetailed() error = %v", err)
	}

	if result.Total != 3 || result.Succeeded != 2 || result.Failed != 1 {
		t.Fatalf("summary total/succeeded/failed = %d/%d/%d, want 3/2/1", result.Total, result.Succeeded, result.Failed)
	}
	if renderer.runCalls != 2 {
		t.Fatalf("run calls = %d, want successful reports to continue", renderer.runCalls)
	}
	var failedThreeDay bool
	for _, item := range result.Reports {
		if item.ReportID == report.ThreeDay && item.Status == "failed" && strings.Contains(item.Error, "render failed") {
			failedThreeDay = true
		}
		if item.ReportID != report.ThreeDay && item.Status != "succeeded" {
			t.Fatalf("report %s status = %s, want succeeded", item.ReportID, item.Status)
		}
	}
	if !failedThreeDay {
		t.Fatalf("reports = %#v, want failed 3-day item", result.Reports)
	}
}

func TestRunBatchUsesOutputDirectory(t *testing.T) {
	server := dailyBundleServer(t)
	cfg := config.Defaults()
	cfg.WeatherAPI.BaseURL = server.URL + "/"
	cfg.WeatherAPI.Timezone = "America/Chicago"
	cfg.Workspace.Root = t.TempDir()
	outputDir := filepath.Join(t.TempDir(), "reports")

	result, err := RunBatchDetailed(context.Background(), BatchRequest{
		Config:    cfg,
		Batch:     BatchEvening,
		Now:       mustParse("2026-05-29T18:00:00-05:00"),
		OutputDir: outputDir,
		Renderer:  &selectiveRenderer{runBody: "# Tomorrow\n"},
	})
	if err != nil {
		t.Fatalf("RunBatchDetailed() error = %v", err)
	}
	if result.Failed != 0 || len(result.Reports) != 1 {
		t.Fatalf("summary = %#v, want one successful report", result)
	}
	want := filepath.Join(outputDir, "tomorrow.md")
	if result.Reports[0].OutputPath != want {
		t.Fatalf("OutputPath = %q, want %q", result.Reports[0].OutputPath, want)
	}
	if _, err := os.Stat(want); err != nil {
		t.Fatalf("expected output copy %q: %v", want, err)
	}
}

func mustParse(value string) time.Time {
	parsed, err := time.Parse(time.RFC3339, value)
	if err != nil {
		panic(err)
	}
	return parsed
}

func priorDailyBriefing(resolved report.Resolved) briefing.Package {
	low := 50.0
	high := 58.0
	precip := 10.0
	return briefing.Package{
		Metadata: briefing.Metadata{
			SchemaVersion: briefing.SchemaVersion,
			RunID:         resolved.Metadata().RunID,
			ReportID:      resolved.Definition.ID,
			Variant:       "today",
			PromptID:      resolved.Definition.PromptID,
			GeneratedAt:   resolved.GeneratedAt,
			Units:         "us",
			Timezone:      resolved.Timezone,
			ValidPeriod:   resolved.ValidPeriod,
		},
		Daily: &briefing.Daily{
			BottomLine: briefing.BottomLine{
				Temperature: forecast.Range{Min: &low, Max: &high},
				MaxPrecipProbability: &forecast.TimedValue{
					Value: precip,
					Time:  resolved.ValidPeriod.Start.Add(6 * time.Hour),
				},
			},
			Dayparts: []forecast.DaypartSummary{
				{Name: "morning"},
			},
		},
	}
}

func priorThreeDayBriefing(resolved report.Resolved) briefing.Package {
	high := 58.0
	precip := 10.0
	return briefing.Package{
		Metadata: briefing.Metadata{
			SchemaVersion: briefing.SchemaVersion,
			RunID:         resolved.Metadata().RunID,
			ReportID:      resolved.Definition.ID,
			PromptID:      resolved.Definition.PromptID,
			GeneratedAt:   resolved.GeneratedAt,
			Units:         "us",
			Timezone:      resolved.Timezone,
			ValidPeriod:   resolved.ValidPeriod,
		},
		ThreeDay: &briefing.ThreeDay{
			Days: []briefing.OutlookDay{
				{
					Date:        "2026-05-29",
					Temperature: forecast.Range{Max: &high},
					MaxPrecipitationProbability: &forecast.TimedValue{
						Value: precip,
						Time:  resolved.ValidPeriod.Start.Add(6 * time.Hour),
					},
				},
			},
		},
	}
}

func priorWeekendBriefing(resolved report.Resolved) briefing.Package {
	high := 58.0
	precip := 10.0
	return briefing.Package{
		Metadata: briefing.Metadata{
			SchemaVersion: briefing.SchemaVersion,
			RunID:         resolved.Metadata().RunID,
			ReportID:      resolved.Definition.ID,
			PromptID:      resolved.Definition.PromptID,
			GeneratedAt:   resolved.GeneratedAt,
			Units:         "us",
			Timezone:      resolved.Timezone,
			ValidPeriod:   resolved.ValidPeriod,
		},
		Weekend: &briefing.Weekend{
			Days: []briefing.OutlookDay{
				{
					Date:        "2026-05-30",
					Temperature: forecast.Range{Max: &high},
					MaxPrecipitationProbability: &forecast.TimedValue{
						Value: precip,
						Time:  resolved.ValidPeriod.Start.Add(12 * time.Hour),
					},
				},
			},
		},
	}
}

type recordingRenderer struct {
	renderCalls   int
	runCalls      int
	renderRequest scriptorium.RenderRequest
	runRequest    scriptorium.RunRequest
	renderResult  *scriptorium.RenderResult
	runResult     *scriptorium.RunResult
	err           error
	runErr        error
	runBody       string
}

type selectiveRenderer struct {
	renderCalls      int
	runCalls         int
	failRenderPrompt string
	runBody          string
}

func (r *selectiveRenderer) Render(_ context.Context, req scriptorium.RenderRequest) (*scriptorium.RenderResult, error) {
	r.renderCalls++
	if req.PromptID == r.failRenderPrompt {
		return &scriptorium.RenderResult{ExitCode: 1, Stderr: "render failed"}, errors.New("render failed")
	}
	return &scriptorium.RenderResult{ExitCode: 0}, nil
}

func (r *selectiveRenderer) Run(_ context.Context, req scriptorium.RunRequest) (*scriptorium.RunResult, error) {
	r.runCalls++
	if r.runBody != "" {
		if err := os.WriteFile(req.OutputPath, []byte(r.runBody), 0o600); err != nil {
			return nil, err
		}
	}
	return &scriptorium.RunResult{ExitCode: 0, OutputPath: req.OutputPath}, nil
}

func (r *recordingRenderer) Render(_ context.Context, req scriptorium.RenderRequest) (*scriptorium.RenderResult, error) {
	r.renderCalls++
	r.renderRequest = req
	return r.renderResult, r.err
}

func (r *recordingRenderer) Run(_ context.Context, req scriptorium.RunRequest) (*scriptorium.RunResult, error) {
	r.runCalls++
	r.runRequest = req
	if r.runBody != "" {
		if err := os.WriteFile(req.OutputPath, []byte(r.runBody), 0o600); err != nil {
			return nil, err
		}
	}
	if r.runResult != nil {
		r.runResult.OutputPath = req.OutputPath
	}
	return r.runResult, r.runErr
}