/// <summary>
/// Checks if the specified users follows the specified channel
/// </summary>
/// <param name="channel">The channel to get follows against</param>
/// <param name="users">The users to check if they follow</param>
/// <returns>All users checked and whether they follow or not</returns>
public async Task <Dictionary <UserModel, DateTimeOffset?> > CheckIfFollows(ChannelModel channel, IEnumerable <UserModel> users)
{
Validator.ValidateVariable(channel, "channel");
Validator.ValidateList(users, "users");
Dictionary <UserModel, DateTimeOffset?> results = new Dictionary <UserModel, DateTimeOffset?>();
for (int i = 0; i < users.Count(); i += 25)
{
IEnumerable <UserModel> userSubset = users.Skip(i).Take(25);
string followQuery = string.Join(",", userSubset.Select(user => $"where=id:eq:{user.id}"));
IEnumerable <FollowerUserModel> followUsers = await this.GetPagedAsync <FollowerUserModel>("channels/" + channel.id + "/follow?nonce=" + Guid.NewGuid().ToString() + "&fields=id,followed&" + followQuery);
IEnumerable <uint> followUserIDs = followUsers.Select(u => u.id);
foreach (UserModel user in userSubset)
{
DateTimeOffset? followDate = null;
FollowerUserModel follow = followUsers.FirstOrDefault(u => u.id.Equals(user.id));
if (follow != null)
{
followDate = follow.followed.createdAt;
}
results.Add(user, followDate);
}
}
return(results);
}
/// <summary>
/// Checks if the specified users follows the specified channel
/// </summary>
/// <param name="channel">The channel to get follows against</param>
/// <param name="users">The users to check if they follow</param>
/// <param name="processResults">The function to process results as they come in</param>
/// <returns>All users checked and whether they follow or not</returns>
public async Task CheckIfFollows(ChannelModel channel, IEnumerable <UserModel> users, Func <IEnumerable <KeyValuePair <uint, DateTimeOffset?> >, Task> processResults)
{
Validator.ValidateVariable(channel, "channel");
Validator.ValidateList(users, "users");
for (int i = 0; i < users.Count(); i += 25)
{
Dictionary <uint, DateTimeOffset?> results = new Dictionary <uint, DateTimeOffset?>();
IEnumerable <UserModel> userSubset = users.Skip(i).Take(25);
IEnumerable <FollowerUserModel> followUsers = await this.GetPagedNumberAsync <FollowerUserModel>("channels/" + channel.id + "/follow?nonce=" + Guid.NewGuid().ToString() + "&fields=id,followed&where=id:in:" + string.Join(";", userSubset.Select(u => u.id)));
IEnumerable <uint> followUserIDs = followUsers.Select(u => u.id);
foreach (UserModel user in userSubset)
{
DateTimeOffset? followDate = null;
FollowerUserModel follow = followUsers.FirstOrDefault(u => u.id.Equals(user.id));
if (follow != null)
{
followDate = follow.followed.createdAt;
}
results[user.id] = followDate;
}
await processResults(results);
}
}