public static void Run(string[] args)
{
List <string> cmd = new OptionSet().Parse(args);
CliUtils.Validate(cmd.Count != 0, AppError.ErrorCode.ArgumentParseError, "no subcommand given");
string subcommand = cmd[0];
MethodInfo[] methods = (
from i in typeof(Methods).GetMethods()
let attr = i.GetCustomAttribute <CliMethodAttribute>()
where attr != null
where attr.Names.Any(_ => _ == subcommand)
select i
).ToArray();
CliUtils.Validate(methods.Length == 1, AppError.ErrorCode.ArgumentParseError, $"unknown subcomand ({subcommand})");
MethodInfo method = methods[0];
AppData appData = AppConfig.LoadAppData();
if (method.GetCustomAttribute <CliMethodRequiresAuthorizationAttribute>() != null)
{
CliUtils.Validate(appData.Authorized, AppError.ErrorCode.AuthorizationError,
"should authorize first (type `vk login`)");
}
Action <string[], AppData> action = (Action <string[], AppData>)Delegate.CreateDelegate(
typeof(Action <string[], AppData>), method);
action(args, appData);
}
public static void Important(string[] args, AppData appData)
{
uint n = 0;
new OptionSet()
{
{ "n=", _ => n = Convert.ToUInt32(_) }
}.Parse(args);
CliUtils.Validate(n > 0, AppError.ErrorCode.ArgumentParseError,
$"should pass the number of messages to retrieve (-n=..)");
var vk = new VkApi();
vk.Authorize(appData.AccessToken);
var messages = vk.Messages.Get(new MessagesGetParams()
{
Count = n,
Filters = MessagesFilter.Important,
}).Messages;
CliUtils.PresentField("Messages", messages.Count);
foreach (var m in messages)
{
Console.WriteLine();
CliUtils.PresentMessage(m, appData);
}
}
public static void Logout(string[] args, AppData appData)
{
CliUtils.Validate(appData.Authorized, AppError.ErrorCode.ApplicationConfigError,
"already not authorized");
AppConfig.SaveAppData(new AppData());
Console.WriteLine($"Goodbye, {appData.FullName}!");
}
public static T LoadFromFile <T>(string filePath)
{
using (var stream = File.OpenRead(filePath)) {
var obj = BinaryFormatter_.Deserialize(stream);
CliUtils.Validate(obj is T, AppError.ErrorCode.DeserializationError,
$"type mismatch (expected {typeof(T).Name}, got {obj.GetType().Name})");
return((T)obj);
}
}
public static void Login(string[] args, AppData appData)
{
CliUtils.Validate(!appData.Authorized, AppError.ErrorCode.ApplicationConfigError,
"already authorized");
Console.WriteLine("Authorizing in the VK api..");
Console.WriteLine();
Console.WriteLine("Step 1. OAuth authorization.");
Console.WriteLine("Visit the following page in your web browser.");
Console.WriteLine("Authorize if necessary and copy the code (should appear after #code= in your address bar).");
Console.WriteLine($"https://oauth.vk.com/authorize?client_id={AppId}&redirect_uri=https:%2F%2Foauth.vk.com%2Fblank.html&scope={AccessMagicNumber}");
string code = CliUtils.ReadString("Code: ");
Console.WriteLine();
Console.WriteLine("Step 2. Receiving access token.");
Console.WriteLine("Sending authorization request..");
AccessTokenResponse resp = JsonModelUtils.ReceiveJson <AccessTokenResponse>(
$"https://oauth.vk.com/access_token?client_id={AppId}&client_secret={AppSecret}&code={code}&redirect_uri=https:%2F%2Foauth.vk.com%2Fblank.html");
CliUtils.Validate(String.IsNullOrEmpty(resp.error), AppError.ErrorCode.AuthorizationError,
$"{resp.error}, {resp.error_description}");
string accessToken = resp.access_token;
Console.WriteLine();
Console.WriteLine("Step 3. VK authorization.");
var vk = new VkApi();
vk.Authorize(accessToken);
var profileInfo = vk.Account.GetProfileInfo();
string userName = $"{profileInfo.FirstName} {profileInfo.LastName}";
appData = new AppData()
{
Authorized = true,
AccessToken = accessToken,
FullName = userName,
UserId = Convert.ToInt64(resp.user_id),
};
appData.AddAbbr("self", appData.UserId);
AppConfig.SaveAppData(appData);
Console.WriteLine();
Console.WriteLine($"Welcome, {userName}!");
}
public void DeleteAbbr(string abbr)
{
CliUtils.Validate(AbbrToId_.ContainsKey(abbr), AppError.ErrorCode.ApplicationConfigError,
$"abbreviation '{abbr}' not found");
long id = AbbrToId_[abbr];
CliUtils.Validate(IdToAbbr_.ContainsKey(id) && IdToAbbr_[id] == abbr, AppError.ErrorCode.AssertionFailed);
AbbrToId_.Remove(abbr);
IdToAbbr_.Remove(id);
if (AbbrRooms_.Contains(abbr))
{
AbbrRooms_.Remove(abbr);
}
}
public static void Send(string[] args, AppData appData)
{
bool edit = false;
bool room = false;
string[] opts = new OptionSet()
{
{ "e|edit", _ => edit = true },
{ "R|room", _ => room = true },
}.Parse(args).ToArray();
long id = appData.GetId(opts.GetArg(1));
bool?roomAbbr = appData.IsRoom(opts.GetArg(1));
if (roomAbbr.HasValue && roomAbbr.Value != room)
{
Console.WriteLine($"Warning: setting -R|--room flag to {roomAbbr.Value} according to abbreviations data.");
room = roomAbbr.Value;
}
string text = String.Join(" ", from i in Enumerable.Range(2, opts.Length - 2) select opts[i]);
if (edit)
{
CliUtils.Validate(String.IsNullOrWhiteSpace(text), AppError.ErrorCode.ArgumentParseError,
"both -e|--edit mode and message body arguments are present");
text = CliUtils.ReadText(ConsoleColor.DarkGreen);
CliUtils.Validate(!String.IsNullOrWhiteSpace(text), AppError.ErrorCode.ArgumentParseError,
$"empty message");
}
else
{
CliUtils.Validate(!String.IsNullOrWhiteSpace(text), AppError.ErrorCode.ArgumentParseError,
"no message body is passed and -e|--edit mode is not enabled");
}
var vk = new VkApi();
vk.Authorize(appData.AccessToken);
MiscUtils.Send(vk, id, text, room);
}
public long GetId(string str)
{
CliUtils.Validate(!String.IsNullOrWhiteSpace(str), AppError.ErrorCode.ArgumentParseError,
"empty id given");
if (AbbrToId_.ContainsKey(str))
{
return(AbbrToId_[str]);
}
else
{
try {
return(Convert.ToInt64(str));
} catch {
throw new AppError(AppError.ErrorCode.ArgumentParseError, $"unknown abbr or id: '{str}'");
}
}
}
public static void Abbr(string[] args, AppData appData)
{
bool delete = false;
bool room = false;
string[] opts = new OptionSet()
{
{ "d|delete", _ => delete = true },
{ "R|room", _ => room = true },
}.Parse(args).ToArray();
string abbr = opts.GetArg(1);
string ids = opts.GetArg(2);
if (!delete)
{
CliUtils.Validate(!String.IsNullOrWhiteSpace(abbr), AppError.ErrorCode.ArgumentParseError,
"passed abbreviation is empty");
CliUtils.Validate(!String.IsNullOrWhiteSpace(ids), AppError.ErrorCode.ArgumentParseError,
"passed id is empty");
long id;
try {
id = Convert.ToInt64(ids);
} catch {
throw new AppError(AppError.ErrorCode.ArgumentParseError, $"unable to convert id '{ids}' to integer");
}
appData.AddAbbr(abbr, id, room);
appData.SaveChanges();
}
else
{
CliUtils.Validate(ids == null, AppError.ErrorCode.ArgumentParseError,
"passed id, but requested abbreviation deletion");
appData.DeleteAbbr(abbr);
appData.SaveChanges();
}
}