/// <summary>
/// Gets the partitions supported by an identity.
/// </summary>
/// <param name="identity">The identity.</param>
/// <returns>Returns the list of vote partitions a given identity supports.</returns>
public List <VotePartition> GetPartitionsForIdentity(Identity identity)
{
if (identity == null)
{
throw new ArgumentNullException(nameof(identity));
}
if (IdentityVotesLookup.TryGetValue(identity, out List <VotePartition> votes))
{
return(votes);
}
return(new List <VotePartition>());
}
/// <summary>
/// Add any number of vote fragments for a given voter, from a given post.
/// </summary>
/// <param name="partitions">A list of vote fragments.</param>
/// <param name="voterName">The voter.</param>
/// <param name="postID">The post the vote fragments are from.</param>
/// <exception cref="ArgumentNullException"/>
public void AddVoteEntries(IEnumerable <VotePartition> partitions, Identity identity)
{
if (partitions == null)
{
throw new ArgumentNullException(nameof(partitions));
}
if (identity == null)
{
throw new ArgumentNullException(nameof(identity));
}
if (!partitions.Any())
{
return;
}
// All existing partitions have this identity removed.
bool changedVoters = RemoveVoterSupport(identity);
bool addedAnyVotes = false;
foreach (var partition in partitions)
{
AddTask(partition.Task);
var votes = GetVoteEntries(partition.VoteType);
// Add supporters to partitions
if (votes.TryGetValue(partition, out var identitySet))
{
changedVoters = identitySet.Add(identity) || changedVoters;
}
else
{
votes[partition] = new IdentitySet {
identity
};
addedAnyVotes = true;
}
// Add partitions to supporters
if (IdentityVotesLookup.TryGetValue(identity, out var identVotes))
{
identVotes.Add(partition);
}
else
{
IdentityVotesLookup.Add(identity, new List <VotePartition> {
partition
});
}
}
if (addedAnyVotes)
{
OnPropertyChanged("Votes");
}
if (changedVoters)
{
OnPropertyChanged("Voters");
}
}