syntax = "proto3";

package memos.api.v1;

import "api/v1/common.proto";
import "google/api/annotations.proto";
import "google/api/client.proto";
import "google/api/field_behavior.proto";
import "google/api/httpbody.proto";
import "google/api/resource.proto";
import "google/protobuf/empty.proto";
import "google/protobuf/field_mask.proto";
import "google/protobuf/timestamp.proto";

option go_package = "gen/api/v1";

service UserService {
  // ListUsers returns a list of users.
  rpc ListUsers(ListUsersRequest) returns (ListUsersResponse) {
    option (google.api.http) = {get: "/api/v1/users"};
  }

  // GetUser gets a user by name.
  rpc GetUser(GetUserRequest) returns (User) {
    option (google.api.http) = {get: "/api/v1/{name=users/*}"};
    option (google.api.method_signature) = "name";
  }

  // CreateUser creates a new user.
  rpc CreateUser(CreateUserRequest) returns (User) {
    option (google.api.http) = {
      post: "/api/v1/users"
      body: "user"
    };
    option (google.api.method_signature) = "user";
  }

  // UpdateUser updates a user.
  rpc UpdateUser(UpdateUserRequest) returns (User) {
    option (google.api.http) = {
      patch: "/api/v1/{user.name=users/*}"
      body: "user"
    };
    option (google.api.method_signature) = "user,update_mask";
  }

  // DeleteUser deletes a user.
  rpc DeleteUser(DeleteUserRequest) returns (google.protobuf.Empty) {
    option (google.api.http) = {delete: "/api/v1/{name=users/*}"};
    option (google.api.method_signature) = "name";
  }

  // SearchUsers searches for users based on query.
  rpc SearchUsers(SearchUsersRequest) returns (SearchUsersResponse) {
    option (google.api.http) = {get: "/api/v1/users:search"};
    option (google.api.method_signature) = "query";
  }

  // GetUserAvatar gets the avatar of a user.
  rpc GetUserAvatar(GetUserAvatarRequest) returns (google.api.HttpBody) {
    option (google.api.http) = {get: "/api/v1/{name=users/*}/avatar"};
    option (google.api.method_signature) = "name";
  }

  // ListAllUserStats returns statistics for all users.
  rpc ListAllUserStats(ListAllUserStatsRequest) returns (ListAllUserStatsResponse) {
    option (google.api.http) = {get: "/api/v1/users:stats"};
  }

  // GetUserStats returns statistics for a specific user.
  rpc GetUserStats(GetUserStatsRequest) returns (UserStats) {
    option (google.api.http) = {get: "/api/v1/{name=users/*}:getStats"};
    option (google.api.method_signature) = "name";
  }

  // GetUserSetting returns the user setting.
  rpc GetUserSetting(GetUserSettingRequest) returns (UserSetting) {
    option (google.api.http) = {get: "/api/v1/{name=users/*}:getSetting"};
    option (google.api.method_signature) = "name";
  }

  // UpdateUserSetting updates the user setting.
  rpc UpdateUserSetting(UpdateUserSettingRequest) returns (UserSetting) {
    option (google.api.http) = {
      patch: "/api/v1/{setting.name=users/*}:updateSetting"
      body: "setting"
    };
    option (google.api.method_signature) = "setting,update_mask";
  }

  // ListUserAccessTokens returns a list of access tokens for a user.
  rpc ListUserAccessTokens(ListUserAccessTokensRequest) returns (ListUserAccessTokensResponse) {
    option (google.api.http) = {get: "/api/v1/{parent=users/*}/accessTokens"};
    option (google.api.method_signature) = "parent";
  }

  // CreateUserAccessToken creates a new access token for a user.
  rpc CreateUserAccessToken(CreateUserAccessTokenRequest) returns (UserAccessToken) {
    option (google.api.http) = {
      post: "/api/v1/{parent=users/*}/accessTokens"
      body: "access_token"
    };
    option (google.api.method_signature) = "parent,access_token";
  }

  // DeleteUserAccessToken deletes an access token.
  rpc DeleteUserAccessToken(DeleteUserAccessTokenRequest) returns (google.protobuf.Empty) {
    option (google.api.http) = {delete: "/api/v1/{name=users/*/accessTokens/*}"};
    option (google.api.method_signature) = "name";
  }

  // ListUserSessions returns a list of active sessions for a user.
  rpc ListUserSessions(ListUserSessionsRequest) returns (ListUserSessionsResponse) {
    option (google.api.http) = {get: "/api/v1/{parent=users/*}/sessions"};
    option (google.api.method_signature) = "parent";
  }

  // RevokeUserSession revokes a specific session for a user.
  rpc RevokeUserSession(RevokeUserSessionRequest) returns (google.protobuf.Empty) {
    option (google.api.http) = {delete: "/api/v1/{name=users/*/sessions/*}"};
    option (google.api.method_signature) = "name";
  }
}

message User {
  option (google.api.resource) = {
    type: "memos.api.v1/User"
    pattern: "users/{user}"
    name_field: "name"
    singular: "user"
    plural: "users"
  };

  // The resource name of the user.
  // Format: users/{user}
  string name = 1 [(google.api.field_behavior) = IDENTIFIER];

  // The role of the user.
  Role role = 2 [(google.api.field_behavior) = REQUIRED];

  // Required. The unique username for login.
  string username = 3 [(google.api.field_behavior) = REQUIRED];

  // Optional. The email address of the user.
  string email = 4 [(google.api.field_behavior) = OPTIONAL];

  // Optional. The display name of the user.
  string display_name = 5 [(google.api.field_behavior) = OPTIONAL];

  // Optional. The avatar URL of the user.
  string avatar_url = 6 [(google.api.field_behavior) = OPTIONAL];

  // Optional. The description of the user.
  string description = 7 [(google.api.field_behavior) = OPTIONAL];

  // Input only. The password for the user.
  string password = 8 [(google.api.field_behavior) = INPUT_ONLY];

  // The state of the user.
  State state = 9 [(google.api.field_behavior) = REQUIRED];

  // Output only. The creation timestamp.
  google.protobuf.Timestamp create_time = 10 [(google.api.field_behavior) = OUTPUT_ONLY];

  // Output only. The last update timestamp.
  google.protobuf.Timestamp update_time = 11 [(google.api.field_behavior) = OUTPUT_ONLY];

  // User role enumeration.
  enum Role {
    // Unspecified role.
    ROLE_UNSPECIFIED = 0;
    // Host role with full system access.
    HOST = 1;
    // Admin role with administrative privileges.
    ADMIN = 2;
    // Regular user role.
    USER = 3;
  }
}

message ListUsersRequest {
  // Optional. The maximum number of users to return.
  // The service may return fewer than this value.
  // If unspecified, at most 50 users will be returned.
  // The maximum value is 1000; values above 1000 will be coerced to 1000.
  int32 page_size = 1 [(google.api.field_behavior) = OPTIONAL];

  // Optional. A page token, received from a previous `ListUsers` call.
  // Provide this to retrieve the subsequent page.
  string page_token = 2 [(google.api.field_behavior) = OPTIONAL];

  // Optional. Filter to apply to the list results.
  // Example: "state=ACTIVE" or "role=USER" or "email:@example.com"
  // Supported operators: =, !=, <, <=, >, >=, :
  // Supported fields: username, email, role, state, create_time, update_time
  string filter = 3 [(google.api.field_behavior) = OPTIONAL];

  // Optional. The order to sort results by.
  // Example: "create_time desc" or "username asc"
  string order_by = 4 [(google.api.field_behavior) = OPTIONAL];

  // Optional. If true, show deleted users in the response.
  bool show_deleted = 5 [(google.api.field_behavior) = OPTIONAL];
}

message ListUsersResponse {
  // The list of users.
  repeated User users = 1;

  // A token that can be sent as `page_token` to retrieve the next page.
  // If this field is omitted, there are no subsequent pages.
  string next_page_token = 2;

  // The total count of users (may be approximate).
  int32 total_size = 3;
}

message GetUserRequest {
  // Required. The resource name of the user.
  // Format: users/{user}
  string name = 1 [
    (google.api.field_behavior) = REQUIRED,
    (google.api.resource_reference) = {type: "memos.api.v1/User"}
  ];

  // Optional. The fields to return in the response.
  // If not specified, all fields are returned.
  google.protobuf.FieldMask read_mask = 2 [(google.api.field_behavior) = OPTIONAL];
}

message CreateUserRequest {
  // Required. The user to create.
  User user = 1 [
    (google.api.field_behavior) = REQUIRED,
    (google.api.field_behavior) = INPUT_ONLY
  ];

  // Optional. The user ID to use for this user.
  // If empty, a unique ID will be generated.
  // Must match the pattern [a-z0-9-]+
  string user_id = 2 [(google.api.field_behavior) = OPTIONAL];

  // Optional. If set, validate the request but don't actually create the user.
  bool validate_only = 3 [(google.api.field_behavior) = OPTIONAL];

  // Optional. An idempotency token that can be used to ensure that multiple
  // requests to create a user have the same result.
  string request_id = 4 [(google.api.field_behavior) = OPTIONAL];
}

message UpdateUserRequest {
  // Required. The user to update.
  User user = 1 [(google.api.field_behavior) = REQUIRED];

  // Required. The list of fields to update.
  google.protobuf.FieldMask update_mask = 2 [(google.api.field_behavior) = REQUIRED];

  // Optional. If set to true, allows updating sensitive fields.
  bool allow_missing = 3 [(google.api.field_behavior) = OPTIONAL];
}

message DeleteUserRequest {
  // Required. The resource name of the user to delete.
  // Format: users/{user}
  string name = 1 [
    (google.api.field_behavior) = REQUIRED,
    (google.api.resource_reference) = {type: "memos.api.v1/User"}
  ];

  // Optional. If set to true, the user will be deleted even if they have associated data.
  bool force = 2 [(google.api.field_behavior) = OPTIONAL];
}

message SearchUsersRequest {
  // Required. The search query.
  string query = 1 [(google.api.field_behavior) = REQUIRED];

  // Optional. The maximum number of users to return.
  int32 page_size = 2 [(google.api.field_behavior) = OPTIONAL];

  // Optional. A page token for pagination.
  string page_token = 3 [(google.api.field_behavior) = OPTIONAL];
}

message SearchUsersResponse {
  // The list of users matching the search query.
  repeated User users = 1;

  // A token for the next page of results.
  string next_page_token = 2;

  // The total count of matching users.
  int32 total_size = 3;
}

message GetUserAvatarRequest {
  // Required. The resource name of the user.
  // Format: users/{user}
  string name = 1 [
    (google.api.field_behavior) = REQUIRED,
    (google.api.resource_reference) = {type: "memos.api.v1/User"}
  ];
}

// User statistics messages
message UserStats {
  option (google.api.resource) = {
    type: "memos.api.v1/UserStats"
    pattern: "users/{user}"
    singular: "userStats"
    plural: "userStats"
  };

  // The resource name of the user whose stats these are.
  // Format: users/{user}
  string name = 1 [(google.api.field_behavior) = IDENTIFIER];

  // The timestamps when the memos were displayed.
  repeated google.protobuf.Timestamp memo_display_timestamps = 2;

  // The stats of memo types.
  MemoTypeStats memo_type_stats = 3;

  // The count of tags.
  map<string, int32> tag_count = 4;

  // The pinned memos of the user.
  repeated string pinned_memos = 5;

  // Total memo count.
  int32 total_memo_count = 6;

  // Memo type statistics.
  message MemoTypeStats {
    int32 link_count = 1;
    int32 code_count = 2;
    int32 todo_count = 3;
    int32 undo_count = 4;
  }
}

message GetUserStatsRequest {
  // Required. The resource name of the user.
  // Format: users/{user}
  string name = 1 [
    (google.api.field_behavior) = REQUIRED,
    (google.api.resource_reference) = {type: "memos.api.v1/User"}
  ];
}

// User settings message
message UserSetting {
  option (google.api.resource) = {
    type: "memos.api.v1/UserSetting"
    pattern: "users/{user}"
    singular: "userSetting"
    plural: "userSettings"
  };

  // The resource name of the user whose setting this is.
  // Format: users/{user}
  string name = 1 [(google.api.field_behavior) = IDENTIFIER];

  // The preferred locale of the user.
  string locale = 2 [(google.api.field_behavior) = OPTIONAL];

  // The preferred appearance of the user.
  string appearance = 3 [(google.api.field_behavior) = OPTIONAL];

  // The default visibility of the memo.
  string memo_visibility = 4 [(google.api.field_behavior) = OPTIONAL];
}

message GetUserSettingRequest {
  // Required. The resource name of the user.
  // Format: users/{user}
  string name = 1 [
    (google.api.field_behavior) = REQUIRED,
    (google.api.resource_reference) = {type: "memos.api.v1/User"}
  ];
}

message UpdateUserSettingRequest {
  // Required. The user setting to update.
  UserSetting setting = 1 [(google.api.field_behavior) = REQUIRED];

  // Required. The list of fields to update.
  google.protobuf.FieldMask update_mask = 2 [(google.api.field_behavior) = REQUIRED];
}

// User access token message
message UserAccessToken {
  option (google.api.resource) = {
    type: "memos.api.v1/UserAccessToken"
    pattern: "users/{user}/accessTokens/{access_token}"
    singular: "userAccessToken"
    plural: "userAccessTokens"
  };

  // The resource name of the access token.
  // Format: users/{user}/accessTokens/{access_token}
  string name = 1 [(google.api.field_behavior) = IDENTIFIER];

  // Output only. The access token value.
  string access_token = 2 [(google.api.field_behavior) = OUTPUT_ONLY];

  // The description of the access token.
  string description = 3 [(google.api.field_behavior) = OPTIONAL];

  // Output only. The issued timestamp.
  google.protobuf.Timestamp issued_at = 4 [(google.api.field_behavior) = OUTPUT_ONLY];

  // Optional. The expiration timestamp.
  google.protobuf.Timestamp expires_at = 5 [(google.api.field_behavior) = OPTIONAL];
}

message ListUserAccessTokensRequest {
  // Required. The parent resource whose access tokens will be listed.
  // Format: users/{user}
  string parent = 1 [
    (google.api.field_behavior) = REQUIRED,
    (google.api.resource_reference) = {type: "memos.api.v1/User"}
  ];

  // Optional. The maximum number of access tokens to return.
  int32 page_size = 2 [(google.api.field_behavior) = OPTIONAL];

  // Optional. A page token for pagination.
  string page_token = 3 [(google.api.field_behavior) = OPTIONAL];
}

message ListUserAccessTokensResponse {
  // The list of access tokens.
  repeated UserAccessToken access_tokens = 1;

  // A token for the next page of results.
  string next_page_token = 2;

  // The total count of access tokens.
  int32 total_size = 3;
}

message CreateUserAccessTokenRequest {
  // Required. The parent resource where this access token will be created.
  // Format: users/{user}
  string parent = 1 [
    (google.api.field_behavior) = REQUIRED,
    (google.api.resource_reference) = {type: "memos.api.v1/User"}
  ];

  // Required. The access token to create.
  UserAccessToken access_token = 2 [(google.api.field_behavior) = REQUIRED];

  // Optional. The access token ID to use.
  string access_token_id = 3 [(google.api.field_behavior) = OPTIONAL];
}

message DeleteUserAccessTokenRequest {
  // Required. The resource name of the access token to delete.
  // Format: users/{user}/accessTokens/{access_token}
  string name = 1 [
    (google.api.field_behavior) = REQUIRED,
    (google.api.resource_reference) = {type: "memos.api.v1/UserAccessToken"}
  ];
}

message UserSession {
  option (google.api.resource) = {
    type: "memos.api.v1/UserSession"
    pattern: "users/{user}/sessions/{session}"
    name_field: "name"
  };

  // The resource name of the session.
  // Format: users/{user}/sessions/{session}
  string name = 1 [(google.api.field_behavior) = IDENTIFIER];

  // The session ID.
  string session_id = 2 [(google.api.field_behavior) = OUTPUT_ONLY];

  // The timestamp when the session was created.
  google.protobuf.Timestamp create_time = 3 [(google.api.field_behavior) = OUTPUT_ONLY];

  // The timestamp when the session was last accessed.
  // Used for sliding expiration calculation (last_accessed_time + 2 weeks).
  google.protobuf.Timestamp last_accessed_time = 4 [(google.api.field_behavior) = OUTPUT_ONLY];

  // Client information associated with this session.
  ClientInfo client_info = 5 [(google.api.field_behavior) = OUTPUT_ONLY];

  message ClientInfo {
    // User agent string of the client.
    string user_agent = 1;

    // IP address of the client.
    string ip_address = 2;

    // Optional. Device type (e.g., "mobile", "desktop", "tablet").
    string device_type = 3 [(google.api.field_behavior) = OPTIONAL];

    // Optional. Operating system (e.g., "iOS 17.0", "Windows 11").
    string os = 4 [(google.api.field_behavior) = OPTIONAL];

    // Optional. Browser name and version (e.g., "Chrome 119.0").
    string browser = 5 [(google.api.field_behavior) = OPTIONAL];
  }
}

message ListUserSessionsRequest {
  // Required. The resource name of the parent.
  // Format: users/{user}
  string parent = 1 [
    (google.api.field_behavior) = REQUIRED,
    (google.api.resource_reference) = {type: "memos.api.v1/User"}
  ];
}

message ListUserSessionsResponse {
  // The list of user sessions.
  repeated UserSession sessions = 1;
}

message RevokeUserSessionRequest {
  // Required. The resource name of the session to revoke.
  // Format: users/{user}/sessions/{session}
  string name = 1 [
    (google.api.field_behavior) = REQUIRED,
    (google.api.resource_reference) = {type: "memos.api.v1/UserSession"}
  ];
}

message ListAllUserStatsRequest {
  // Optional. The maximum number of user stats to return.
  int32 page_size = 1 [(google.api.field_behavior) = OPTIONAL];

  // Optional. A page token for pagination.
  string page_token = 2 [(google.api.field_behavior) = OPTIONAL];
}

message ListAllUserStatsResponse {
  // The list of user statistics.
  repeated UserStats user_stats = 1;

  // A token for the next page of results.
  string next_page_token = 2;

  // The total count of user statistics.
  int32 total_size = 3;
}
