package storage

import (
	"path/filepath"
	"testing"

	"maisym.com/hsa/internal/receipt"
)

func TestSnapshotWithBlobs(t *testing.T) {
	s := newTestStore(t)
	r := sampleReceipt(firstCategoryID(t, s))
	if err := s.Insert(r); err != nil {
		t.Fatal(err)
	}

	dest := filepath.Join(t.TempDir(), "snap.db")
	if err := s.SnapshotTo(dest, true); err != nil {
		t.Fatalf("SnapshotTo: %v", err)
	}

	snap, err := Open(dest)
	if err != nil {
		t.Fatal(err)
	}
	defer snap.Close()

	got, err := snap.Get(r.ID)
	if err != nil {
		t.Fatal(err)
	}
	if string(got.ImageData) != string(r.ImageData) {
		t.Errorf("blob not preserved: got %q", got.ImageData)
	}
}

func TestSnapshotWithoutBlobs(t *testing.T) {
	s := newTestStore(t)
	r := sampleReceipt(firstCategoryID(t, s))
	if err := s.Insert(r); err != nil {
		t.Fatal(err)
	}
	// An attachment blob must be stripped too.
	att := receipt.Attachment{
		ID: "att1", ReceiptID: r.ID, UploadedBy: "jm", UploadedAt: r.UploadedAt,
		FilePath: "attachments/2026/x.png", ImageData: []byte("blobbytes"),
		FileSizeBytes: 9, OriginalFilename: "x.png", MimeType: "image/png",
	}
	if err := s.InsertAttachment(att); err != nil {
		t.Fatal(err)
	}

	dest := filepath.Join(t.TempDir(), "snap-noblob.db")
	if err := s.SnapshotTo(dest, false); err != nil {
		t.Fatalf("SnapshotTo: %v", err)
	}

	snap, err := Open(dest)
	if err != nil {
		t.Fatal(err)
	}
	defer snap.Close()

	// Metadata row survives, but the blob is stripped.
	n, err := snap.CountActive()
	if err != nil {
		t.Fatal(err)
	}
	if n != 1 {
		t.Errorf("CountActive = %d, want 1 (metadata should survive)", n)
	}
	got, err := snap.Get(r.ID)
	if err != nil {
		t.Fatal(err)
	}
	if len(got.ImageData) != 0 {
		t.Errorf("receipt blob not stripped: got %d bytes", len(got.ImageData))
	}
	if got.AmountCents != r.AmountCents {
		t.Errorf("metadata lost: amount = %d, want %d", got.AmountCents, r.AmountCents)
	}
	// Attachment metadata survives, blob stripped.
	gotAtt, err := snap.GetAttachment("att1")
	if err != nil {
		t.Fatal(err)
	}
	if len(gotAtt.ImageData) != 0 {
		t.Errorf("attachment blob not stripped: got %d bytes", len(gotAtt.ImageData))
	}
	if gotAtt.OriginalFilename != "x.png" {
		t.Errorf("attachment metadata lost: %+v", gotAtt)
	}
}