/// <summary>
/// Finds five followers per githubId per run. I.e: if runs is set to 1 finds 5 users that follow the initial githubId.
/// If runs is set to 2, finds 5 users that follow the inital githubId and then 5 users that follow each of those users' githubIds.
/// </summary>
/// <param name="githubId"> Id that all the followers stem from </param>
/// <param name="runs"> One-indexed value for how deep the runs go (max 3 required by project) </param>
/// <returns> A list of users that follow the githubId, sometimes indirectly (following followers of githubId) </returns>
public async Task <IEnumerable <User> > FindFollowersByGithubId(long githubId, int runs)
{
var followers = new List <User>();
var idsToSearch = new List <long> {
githubId
}; // initalize with the given githubId
for (int i = 0; i < runs; i++)
{
var followersFound = new List <User>();
foreach (var id in idsToSearch)
{
followersFound.AddRange(await _api.FindFiveFollowersByGithubId(id));
}
followers.AddRange(followersFound);
idsToSearch = followersFound.Select(x => x.Id).ToList();
}
return(followers);
}