InstaFollowersOverseer/Instagram/InstagramWrapper.cs

80 lines
3.1 KiB
C#

using InstaSharper.API;
using InstaSharper.API.Builder;
using InstaSharper.Classes;
using InstaSharper.Classes.Models;
namespace InstaFollowersOverseer.Instagram;
public static class InstagramWrapper
{
public static ContextLogger InstagramLogger = new("instagram",ParentLogger);
private static IInstaApi Api=null!;
public static async Task InitAsync()
{
try
{
InstagramLogger.LogInfo("initializing instagram wrapper");
if (CurrentConfig is null)
throw new NullReferenceException("config is null");
var apiLogger = new InstagramApiLogger();
// disabling http request/responce logging
apiLogger._logger.DebugLogEnabled = false;
Api = InstaApiBuilder.CreateBuilder()
.UseLogger(apiLogger)
.SetUser(new UserSessionData
{
UserName = CurrentConfig.instagramLogin,
Password = CurrentConfig.instagramPassword
})
.SetRequestDelay(RequestDelay.FromSeconds(5, 10))
.Build();
InstagramLogger.LogInfo("instagram login starting");
var rezult= await Api.LoginAsync();
if (!rezult.Succeeded)
throw new Exception("login exception:\n" + rezult.Info + '\n' + rezult.Value);
InstagramLogger.LogInfo("instagram wrapper initialized and connected successfully");
}
catch (OperationCanceledException) {}
catch (Exception ex)
{
InstagramLogger.LogError("init", ex);
Program.Stop();
}
}
public static async Task<InstaUser?> TryGetUserAsync(string usernameOrUrl)
{
// url
if (usernameOrUrl.Contains('/'))
{
throw new NotImplementedException("get user by url");
}
// username
var u=await Api.GetUserAsync(usernameOrUrl);
return u.Succeeded ? u.Value : null;
}
private static Dictionary<string, IEnumerable<string>> FollowersDict=new();
/// may took long time if user have many followers
public static async Task<FollowersDiff> GetFollowersDiffAsync(string instaUser)
{
if (await TryGetUserAsync(instaUser) is null)
throw new Exception($"instagram user {instaUser} doesnt exist");
var maybeFollowers = await Api.GetUserFollowersAsync(instaUser, PaginationParameters.Empty);
if (!maybeFollowers.Succeeded)
throw new Exception($"can't get followers of user {instaUser}");
var currentFollowers = maybeFollowers.Value.Select(f=>f.UserName).ToList();
if(!FollowersDict.TryGetValue(instaUser, out var _prevFollowers))
{
FollowersDict.Add(instaUser, currentFollowers);
return FollowersDiff.Empty;
}
var prevFollowers = _prevFollowers.ToList();
var unfollowed = prevFollowers.Except(currentFollowers).ToList();
var followed = currentFollowers.Except(prevFollowers).ToList();
return new FollowersDiff(unfollowed, followed);
}
}