package attach

import (
	"strings"
	"testing"

	"gocloud.dev/blob"
	"gocloud.dev/blob/fileblob"
	"gocloud.dev/blob/memblob"
)

func TestIsInlineContentType(t *testing.T) {
	cases := []struct {
		in   string
		want bool
	}{
		{"image/jpeg", true},
		{"image/png", true},
		{"image/gif", true},
		{"image/webp", true},
		{"image/avif", true},
		{"IMAGE/WEBP; charset=binary", true},
		{"text/html; charset=utf-8", false},
		{"image/svg+xml", false},
		{"application/pdf", false},
		{"text/plain", false},
		{"application/octet-stream", false},
		{"application/zip", false},
		{"image/bmp", false},
		{"image/x-icon", false},
		{"video/mp4", false},
		{"audio/mpeg", false},
		{"", false},
		{"not a media type;;", false},
	}
	for _, tc := range cases {
		if got := IsInlineContentType(tc.in); got != tc.want {
			t.Errorf("IsInlineContentType(%q) = %v, want %v", tc.in, got, tc.want)
		}
	}
}

// TestWriteBlobDisposition is the driver half of the public-bucket fix: a
// public bucket serves the headers Store stores with the object, so the
// attachment disposition must survive the write on the real drivers. The
// metadata-skip fileblob bucket shows that a driver which does not keep
// attributes still accepts the option without an error.
func TestWriteBlobDisposition(t *testing.T) {
	cases := []struct {
		name, ct, disposition string
	}{
		{"html", "text/html", "attachment"},
		{"text", "text/plain", "attachment"},
		{"pdf", "application/pdf", "attachment"},
		{"svg", "image/svg+xml", "attachment"},
		{"zip", "application/zip", "attachment"},
		{"png", "image/png", ""},
		{"jpeg", "image/jpeg", ""},
		{"avif", "image/avif", ""},
	}
	sidecar, err := fileblob.OpenBucket(t.TempDir(), nil)
	if err != nil {
		t.Fatal(err)
	}
	noMeta, err := fileblob.OpenBucket(t.TempDir(), &fileblob.Options{Metadata: fileblob.MetadataDontWrite})
	if err != nil {
		t.Fatal(err)
	}
	buckets := []struct {
		name       string
		bucket     *blob.Bucket
		keepsAttrs bool
	}{
		{"memblob", memblob.OpenBucket(nil), true},
		{"fileblob sidecar", sidecar, true},
		{"fileblob metadata skipped", noMeta, false},
	}
	const body = "<html><script>alert(1)</script></html>"
	for _, b := range buckets {
		bucket := b.bucket
		t.Cleanup(func() { _ = bucket.Close() })
		t.Run(b.name, func(t *testing.T) {
			ctx := t.Context()
			for _, tc := range cases {
				key := "abc/def/012/" + tc.name + "-file.bin"
				n, err := writeBlob(ctx, bucket, key, strings.NewReader(body), tc.ct, 0)
				if err != nil {
					t.Fatalf("%s: writeBlob: %v", tc.name, err)
				}
				if n != int64(len(body)) {
					t.Fatalf("%s: wrote %d bytes, want %d", tc.name, n, len(body))
				}
				got, err := bucket.ReadAll(ctx, key)
				if err != nil {
					t.Fatalf("%s: ReadAll: %v", tc.name, err)
				}
				if string(got) != body {
					t.Fatalf("%s: body = %q, want %q", tc.name, got, body)
				}
				if !b.keepsAttrs {
					continue
				}
				attrs, err := bucket.Attributes(ctx, key)
				if err != nil {
					t.Fatalf("%s: Attributes: %v", tc.name, err)
				}
				if attrs.ContentType != tc.ct {
					t.Errorf("%s: ContentType = %q, want %q", tc.name, attrs.ContentType, tc.ct)
				}
				if attrs.ContentDisposition != tc.disposition {
					t.Errorf("%s: ContentDisposition = %q, want %q", tc.name, attrs.ContentDisposition, tc.disposition)
				}
			}
		})
	}
}