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// Copyright 2025 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CHROMEOS_ASH_COMPONENTS_POLICY_EXTERNAL_STORAGE_DEVICE_ID_H_
#define CHROMEOS_ASH_COMPONENTS_POLICY_EXTERNAL_STORAGE_DEVICE_ID_H_
#include <cstdint>
#include <optional>
#include <string_view>
#include "base/component_export.h"
#include "base/values.h"
namespace ash::disks {
class Disk;
} // namespace ash::disks
namespace policy {
// `DeviceId` corresponds to the `UsbDeviceId` type from
// `components/policy/resources/templates/common_schemas.yaml`. It is used to
// read and unpack the policy value into a proper C++ type.
//
// It consists of the vendor_id/product_id external storage identifier.
struct COMPONENT_EXPORT(CHROMEOS_ASH_COMPONENTS_POLICY) DeviceId {
static const char kVendorId[];
static const char kProductId[];
DeviceId(uint16_t vid, uint16_t pid);
// Constructs from a Value::Dict:
// {
// "vendor_id": 39612,
// "product_id": 57072
// }
static std::optional<DeviceId> FromDict(const base::Value& dict);
// Constructs from uint32_t, checking the range.
static std::optional<DeviceId> FromUint32(uint32_t vid, uint32_t pid);
// Constructs from hex strings:
// ("9abc", "def0") -> DeviceId(39612, 57072)
static std::optional<DeviceId> FromVidPid(std::string_view vid,
std::string_view pid);
// Constructs from given Disk* (disk->vendor_id() and disk->product_id()).
static std::optional<DeviceId> FromDisk(const ash::disks::Disk* disk);
// Creates a Value::Dict from the current DeviceId. Opposite of `FromDict`.
base::Value::Dict ToDict() const;
friend bool operator==(const DeviceId&, const DeviceId&) = default;
uint16_t vid;
uint16_t pid;
};
} // namespace policy
#endif // CHROMEOS_ASH_COMPONENTS_POLICY_EXTERNAL_STORAGE_DEVICE_ID_H_
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