package db

import (
	"path/filepath"
	"testing"
)

func TestMigrateIdempotent(t *testing.T) {
	dir := t.TempDir()
	database, err := Open(filepath.Join(dir, "test.db"))
	if err != nil {
		t.Fatalf("open db: %v", err)
	}
	t.Cleanup(func() { _ = database.Close() })

	if err := database.Migrate(); err != nil {
		t.Fatalf("first migrate: %v", err)
	}
	if err := database.Migrate(); err != nil {
		t.Fatalf("second migrate: %v", err)
	}

	// Verify seed data is present exactly once.
	zones, err := database.ListZones()
	if err != nil {
		t.Fatalf("list zones: %v", err)
	}
	if len(zones) != 2 {
		t.Fatalf("got %d zones, want 2", len(zones))
	}

	records, err := database.ListRecords("svc.mcp.metacircular.net", "", "")
	if err != nil {
		t.Fatalf("list records: %v", err)
	}
	if len(records) != 8 {
		t.Fatalf("got %d svc records, want 8", len(records))
	}

	records, err = database.ListRecords("mcp.metacircular.net", "", "")
	if err != nil {
		t.Fatalf("list records: %v", err)
	}
	if len(records) != 4 {
		t.Fatalf("got %d mcp records, want 4", len(records))
	}
}