package storage

import (
	"bytes"
	"context"
	"io"
	"testing"

	"git.toowon.com/jimmy/go-common/config"
)

func TestLocalStorage_UploadGetExistsDelete(t *testing.T) {
	t.Parallel()

	cfg := &config.LocalStorageConfig{
		BaseDir:   t.TempDir(),
		PublicURL: "http://localhost:8080/file?key={objectKey}",
	}
	s, err := NewLocalStorage(cfg)
	if err != nil {
		t.Fatalf("NewLocalStorage error: %v", err)
	}

	ctx := context.Background()
	objectKey := "uploads/2026/01/30/hello.txt"
	body := []byte("hello local storage")

	if err := s.Upload(ctx, objectKey, bytes.NewReader(body), "text/plain"); err != nil {
		t.Fatalf("Upload error: %v", err)
	}

	exists, err := s.Exists(ctx, objectKey)
	if err != nil {
		t.Fatalf("Exists error: %v", err)
	}
	if !exists {
		t.Fatalf("expected exists=true")
	}

	rc, err := s.GetObject(ctx, objectKey)
	if err != nil {
		t.Fatalf("GetObject error: %v", err)
	}
	defer rc.Close()

	got, err := io.ReadAll(rc)
	if err != nil {
		t.Fatalf("ReadAll error: %v", err)
	}
	if !bytes.Equal(got, body) {
		t.Fatalf("content mismatch: got=%q want=%q", string(got), string(body))
	}

	u, err := s.GetURL(objectKey, 0)
	if err != nil {
		t.Fatalf("GetURL error: %v", err)
	}
	if u == "" {
		t.Fatalf("expected non-empty url")
	}

	if err := s.Delete(ctx, objectKey); err != nil {
		t.Fatalf("Delete error: %v", err)
	}

	exists, err = s.Exists(ctx, objectKey)
	if err != nil {
		t.Fatalf("Exists error: %v", err)
	}
	if exists {
		t.Fatalf("expected exists=false after delete")
	}
}

func TestNormalizeObjectKey(t *testing.T) {
	t.Parallel()

	if _, err := normalizeObjectKey(""); err == nil {
		t.Fatalf("expected error for empty objectKey")
	}
	if _, err := normalizeObjectKey("   "); err == nil {
		t.Fatalf("expected error for blank objectKey")
	}
	if _, err := normalizeObjectKey("."); err == nil {
		t.Fatalf("expected error for '.'")
	}
	clean1, err := normalizeObjectKey("a/b/")
	if err != nil {
		t.Fatalf("normalizeObjectKey error: %v", err)
	}
	if clean1 != "a/b" {
		t.Fatalf("unexpected clean key: %q", clean1)
	}

	clean, err := normalizeObjectKey(`\a\..\b\c.txt`)
	if err != nil {
		t.Fatalf("normalizeObjectKey error: %v", err)
	}
	if clean != "b/c.txt" {
		t.Fatalf("unexpected clean key: %q", clean)
	}
}