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#ifndef THIRD_PARTY_BLINK_RENDERER_PLATFORM_UUID_H_
#define THIRD_PARTY_BLINK_RENDERER_PLATFORM_UUID_H_

#include "third_party/blink/renderer/platform/platform_export.h"
#include "third_party/blink/renderer/platform/wtf/text/wtf_string.h"

namespace blink {

// Creates a UUID that consists of 32 hexadecimal digits and returns its
// canonical form.  The canonical form is displayed in 5 groups separated by
// hyphens, in the form 8-4-4-4-12 for a total of 36 characters.
// The hexadecimal values "a" through "f" are output as lower case characters.
//
// Note: for security reason, we should always generate version 4 UUID that use
// a scheme relying only on random numbers.  This algorithm sets the version
// number as well as two reserved bits. All other bits are set using a random or
// pseudorandom data source. Version 4 UUIDs have the form
// xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx with hexadecimal digits for x and one of
// 8, 9, A, or B for y.
PLATFORM_EXPORT String CreateCanonicalUUIDString();

// Check that the UUID is a valid UUID. A valid UUID is a string made out of 5
// groups of lower case hexadecimal characters separated by hyphens, in the form
// 8-4-4-4-12.
PLATFORM_EXPORT bool IsValidUUID(const String& uuid);

}  // namespace blink

#endif