unit FriendsService;

interface

uses
  StrUtils, SysUtils, Windows, superobject, Classes, BaseService;

type
  TFriendsService = class(TBaseService)
  private
    FFriends: TStrings;

  public

    function GetFriends: TStringList;
    procedure Init;
    procedure Uninstall;
    procedure AddFriends(AFriends: TStrings);
    procedure AddFriend(AFriend: TObject);
    function IsFriend(ALoginName: string): Boolean;

    constructor Create;
    destructor Destroy; override;
    class function GetService: TFriendsService; static;
    /// <summary>
    /// 批量处理好友状态，处理09协议
    /// </summary>
    /// <param name="AJo"></param>
    procedure HandeFriendsState(AJo: ISuperObject);
    procedure RequestUserStatus(AUsers: TStringList);
  end;

implementation

uses
  MainFrm, DataProviderImport, InterfaceDataProvider, LoggerImport, Messages,
  UsersService, RealICQClient, AsynRequestUserStatus, RealICQModel;

var
  AFriendsService: TFriendsService;
  
{ TFriendsService }

function TFriendsService.GetFriends: TStringList;
var
  tmpList: TStringList;
begin
  tmpList := TStringList.Create;
  tmpList.AddStrings(FFriends);
  try
    Result := TUsersService.GetUsersService.GetOrCreateUsers(tmpList);
  finally
    FreeAndNil(tmpList);
  end;
end;

procedure TFriendsService.RequestUserStatus(AUsers: TStringList);
var
  AsynAction: TAsynRequestUserStatus;
begin
  AsynAction := TAsynRequestUserStatus.Create(True);
  AsynAction.Protocol := FRIENDS_USERSTATE_PROLOCOL;
  AsynAction.Users := TStringList.Create;
  AsynAction.Users.AddStrings(AUsers);
  AsynAction.Resume;
end;

procedure TFriendsService.Init;
begin
  Uninstall;
end;

function TFriendsService.IsFriend(ALoginName: string): Boolean;
begin
  Result := FFriends.IndexOf(ALoginName) >= 0;
end;

procedure TFriendsService.Uninstall;
begin
  FFriends.Clear;
end;

destructor TFriendsService.Destroy; 
begin
  FreeAndNil(FFriends);
  Inherited;
end;

procedure TFriendsService.AddFriend(AFriend: TObject);
begin
  if not AFriend.ClassNameIs('TRealICQUser') then
    Exit;
  FFriends.Add((AFriend as TRealICQUser).LoginName);
  TUsersService.GetUsersService.UpdateOrAddFriend(AFriend as TRealICQUser);
end;

procedure TFriendsService.AddFriends(AFriends: TStrings);
var
  iLoop: Integer;
begin
  for iLoop := 0 to AFriends.Count - 1 do
    if FFriends.IndexOf(AFriends[iLoop]) < 0 then
      FFriends.Add(AFriends[iLoop]); 
end;

constructor TFriendsService.Create; 
begin
  FFriends := TStringList.Create;
  Inherited;
end;

class function TFriendsService.GetService: TFriendsService;
begin
  if AFriendsService = nil then
    AFriendsService := TFriendsService.Create;

  Result := AFriendsService;
end;

procedure TFriendsService.HandeFriendsState(AJo: ISuperObject);
var
  iLoop: Integer;
  joUser: ISuperObject;
  ja: TSuperArray;
  AServerid: string;
//  AKeyValues: TKeyValues;
  AUser: TRealICQUser;
  AUSers: TStringList;
//  ATreeView: TRealICQContacterTreeView;
begin
  ja := AJo.A['us'];
  AServerid := AJo.S['s'];
  AUsers := TStringList.Create;
  for iLoop := 0 to ja.Length - 1 do
  begin
    joUser := ja[iLoop];
    if joUser.S['l'] = '' then
      Continue;
    joUser.S['l'] := TUsersService.FullLoginName(MainForm.RealICQClient.CenterServerID, AServerid, joUser.S['l']);
    AUser := TUsersService.GetUsersService.GetUser(joUser.S['l']);
    if AUser = nil then
      Continue;
    AUser.LoginState := TRealICQLoginState(joUser.I['os']);
    AUsers.AddObject(AUser.LoginName, AUser);
  end;

  if AUsers.Count = 0 then
    Exit;

  try
    TUsersService.GetUsersService.UpdateUserStateToTreeView(AUsers, GetTreeView(LvFriends));
  finally
    FreeAndNil(AUsers);
  end;
end;

end.