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// Copyright 2022 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CHROME_BROWSER_ASH_FILE_SUGGEST_FILE_SUGGEST_UTIL_H_
#define CHROME_BROWSER_ASH_FILE_SUGGEST_FILE_SUGGEST_UTIL_H_
#include <optional>
#include "base/files/file_path.h"
#include "base/functional/callback_forward.h"
#include "base/time/time.h"
namespace ash {
struct FileSuggestData;
using GetSuggestFileDataCallback = base::OnceCallback<void(
const std::optional<std::vector<FileSuggestData>>&)>;
// Outcome of a call to `FileSuggestKeyedService::GetSuggestFileData()`. These
// values persist to logs. Entries should not be renumbered and numeric values
// should never be reused.
enum class DriveSuggestValidationStatus {
kOk = 0,
kDriveFSNotMounted = 1,
kNoResults = 2,
kPathLocationFailed = 3,
kAllFilesErrored = 4,
kDriveDisabled = 5,
kMaxValue = kDriveDisabled,
};
// The types of the file suggestion data, ordered by decreasing precedence.
enum class FileSuggestionType {
// The drive file suggestion.
kDriveFile,
// The local file suggestion.
kLocalFile,
};
// The reason the file is suggested.
enum class FileSuggestionJustificationType {
// Used only for deprecated suggestions from drive's ItemSuggest API, for
// which the exact justification type is obscured.
kUnknown,
// The user recently viewed the file.
kViewed,
// The file was recently modified, usually by another user.
kModified,
// The file was recently modified by the current user.
kModifiedByCurrentUser,
// The file was shared with the current user.
kShared,
};
// Returns the max amount of time from now that a file was modified or viewed to
// be available as a file suggestion.
base::TimeDelta GetMaxFileSuggestionRecency();
// Creates a suggestion score in interval [0, 1] based on the suggestion
// timestamps. Assumes that the timestamps are at most `max_recency` old.
double ToTimestampBasedScore(const FileSuggestData& suggestion_data,
base::TimeDelta max_recency);
// The data of an individual file suggested by `FileSuggestKeyedService`.
struct FileSuggestData {
FileSuggestData(FileSuggestionType new_type,
const base::FilePath& new_file_path,
const std::optional<std::string>& title,
const std::optional<std::u16string>& new_prediction_reason,
const std::optional<base::Time>& modified_time,
const std::optional<base::Time>& viewed_time,
const std::optional<base::Time>& shared_time,
std::optional<float> new_score,
const std::optional<std::string>& drive_file_id,
const std::optional<std::string>& icon_url);
FileSuggestData(FileSuggestData&&);
FileSuggestData(const FileSuggestData&);
FileSuggestData& operator=(const FileSuggestData&);
~FileSuggestData();
// The type of the suggested file (e.g. a drive file).
FileSuggestionType type;
// The path to the suggested file.
base::FilePath file_path;
// The title of the file. The title can contain path separators like "/",
// which is the reason that this title member is used instead of the file name
// in `file_path`.
std::optional<std::string> title;
// The suggestion id. Calculated from `type` and `file_path`.
std::string id;
// The reason why the file is suggested.
std::optional<std::u16string> prediction_reason;
// Timestamp of when the file was last modified by the user.
std::optional<base::Time> modified_time;
// Timestamp of when the file was last viewed by the user.
std::optional<base::Time> viewed_time;
// Timestamp of when the file was shared with the user.
std::optional<base::Time> shared_time;
// Only has a value when `type` == `FileSuggestionType::kLocalFile`.
std::optional<float> score;
// The drive file id for the file.
std::optional<std::string> drive_file_id;
// The custom icon url for the file.
std::optional<std::string> icon_url;
};
// Calculates the id of a file suggestion specified by `type` and `file_path`.
std::string CalculateSuggestionId(FileSuggestionType type,
const base::FilePath& file_path);
} // namespace ash
#endif // CHROME_BROWSER_ASH_FILE_SUGGEST_FILE_SUGGEST_UTIL_H_
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