package test

import (
	domainImage "RenewCMS/internal/domain/image"
	"RenewCMS/internal/infrastructure/storage"
	"bytes"
	"errors"
	"io"
	"os"
	"testing"
)

const (
	envTestS3Endpoint  = "RENEWCMS_TEST_S3_ENDPOINT"
	envTestS3Bucket    = "RENEWCMS_TEST_S3_BUCKET"
	envTestS3AccessKey = "RENEWCMS_TEST_S3_ACCESS_KEY"
	envTestS3SecretKey = "RENEWCMS_TEST_S3_SECRET_KEY"
)

func TestS3StorageIntegration(t *testing.T) {
	endpoint := os.Getenv(envTestS3Endpoint)
	if endpoint == "" {
		t.Skipf("%s is not set, run task test:s3 to start a throwaway S3 server", envTestS3Endpoint)
	}
	store, err := storage.Open(storage.Config{Driver: storage.DriverS3, S3: storage.S3Config{
		Bucket:          os.Getenv(envTestS3Bucket),
		Region:          "us-east-1",
		Endpoint:        endpoint,
		AccessKeyID:     os.Getenv(envTestS3AccessKey),
		SecretAccessKey: os.Getenv(envTestS3SecretKey),
		KeyPrefix:       "integration/",
		PathStyle:       true,
	}})
	if err != nil {
		t.Fatalf("storage.Open failed: %v", err)
	}

	name, err := store.Put("image/png", bytes.NewReader([]byte("0123456789")))
	if err != nil {
		t.Fatalf("Put failed: %v", err)
	}
	blob, err := store.Open(name)
	if err != nil {
		t.Fatalf("Open failed: %v", err)
	}
	if blob.Size != 10 || blob.ModTime.IsZero() {
		t.Errorf("unexpected blob metadata size=%d modtime=%v", blob.Size, blob.ModTime)
	}
	seeker, ok := blob.Content.(io.ReadSeeker)
	if !ok {
		t.Fatal("Content is not an io.ReadSeeker")
	}
	if _, err := seeker.Seek(4, io.SeekStart); err != nil {
		t.Fatalf("Seek failed: %v", err)
	}
	chunk := make([]byte, 3)
	if _, err := io.ReadFull(seeker, chunk); err != nil || string(chunk) != "456" {
		t.Errorf("ranged read = %q, %v", chunk, err)
	}
	_ = blob.Content.Close()

	if err := store.Delete(name); err != nil {
		t.Fatalf("Delete failed: %v", err)
	}
	if err := store.Delete(name); err != nil {
		t.Errorf("deleting a missing key must not fail, got %v", err)
	}
	if _, err := store.Open(name); !errors.Is(err, domainImage.ErrBlobNotFound) {
		t.Errorf("expected ErrBlobNotFound after delete, got %v", err)
	}
}