package app

import (
	"bytes"
	"context"
	"path/filepath"
	"strings"
	"testing"

	"gitea.maximumdirect.net/eric/distributor/internal/testutil"
)

func TestInspectPrintsBundleSummary(t *testing.T) {
	var stdout bytes.Buffer
	err := Inspect(context.Background(), InspectOptions{
		Path:   filepath.Join("..", "bundle", "testdata", "valid_bundle"),
		Stdout: &stdout,
	})
	if err != nil {
		t.Fatalf("Inspect() error = %v", err)
	}
	output := stdout.String()
	for _, want := range []string{
		"Bundles: 1",
		"path=.",
		"id=weather.daily.brentwood.2026-05-30",
		"created=2026-05-30T11:10:00Z",
		"report.md size=16",
		"summary.txt size=8",
	} {
		if !strings.Contains(output, want) {
			t.Fatalf("Inspect() output = %q, want substring %q", output, want)
		}
	}
}

func TestInspectConfiguredLocalSource(t *testing.T) {
	sourceRoot := t.TempDir()
	destinationRoot := t.TempDir()
	testutil.WriteSourceBundle(t, sourceRoot, "daily", testutil.BundleOptions{ID: "reports.daily"})
	var stdout bytes.Buffer

	err := Inspect(context.Background(), InspectOptions{
		ConfigPath: testutil.WriteMinimalLocalConfig(t, sourceRoot, destinationRoot),
		PipelineID: "reports",
		Stdout:     &stdout,
	})

	if err != nil {
		t.Fatalf("Inspect() configured source error = %v", err)
	}
	output := stdout.String()
	for _, want := range []string{
		"Pipeline: reports",
		"Source: local",
		"Bundles: 1",
		"path=daily",
		"id=reports.daily",
	} {
		if !strings.Contains(output, want) {
			t.Fatalf("Inspect() output = %q, want substring %q", output, want)
		}
	}
}

func TestInspectConfiguredSourceJSON(t *testing.T) {
	sourceRoot := t.TempDir()
	destinationRoot := t.TempDir()
	testutil.WriteSourceBundle(t, sourceRoot, "", testutil.BundleOptions{ID: "reports.json"})
	var stdout bytes.Buffer

	err := Inspect(context.Background(), InspectOptions{
		ConfigPath:   testutil.WriteMinimalLocalConfig(t, sourceRoot, destinationRoot),
		PipelineID:   "reports",
		Stdout:       &stdout,
		OutputFormat: OutputFormatJSON,
	})

	if err != nil {
		t.Fatalf("Inspect() configured JSON error = %v", err)
	}
	result := decodeAppResult(t, stdout.String())
	if result["pipeline_id"] != "reports" || result["source_backend"] != "local" || result["bundle_count"] != float64(1) {
		t.Fatalf("result = %#v, want configured inspect metadata", result)
	}
}

func TestInspectRequiresPath(t *testing.T) {
	err := Inspect(context.Background(), InspectOptions{})
	if err == nil || !strings.Contains(err.Error(), "requires a path") {
		t.Fatalf("Inspect() error = %v, want required path", err)
	}
}