Method ReadLifecycleCountsAsync

Namespace

MailFathom.Application.Mail.Mutations

Assembly

MailFathom.Application.dll

ReadLifecycleCountsAsync(MailAccountId, CancellationToken)

Counts one account's uncompleted mutations by kind and by where in its lifecycle each one stands.

Task<IReadOnlyList<MailboxMutationLifecycleCount>> ReadLifecycleCountsAsync(MailAccountId accountId, CancellationToken cancellationToken)

Parameters

accountId MailAccountId

The account whose mutations are counted.

cancellationToken CancellationToken

Cancels the read.

Returns

Task<IReadOnlyList<MailboxMutationLifecycleCount>>

One entry per kind and lifecycle that has at least one record, in no particular order.

Remarks

It is an aggregate rather than a count of what ReadOutstandingAsync(MailAccountId, int, CancellationToken) returned, because that read is bounded and a bounded count is wrong exactly when it matters — the moment an account has more stuck changes than one pass looks at is the moment somebody needs the real number.

The database groups and counts, so the answer is a handful of rows however many mutations the account has: at most one per permitted mutation per lifecycle. Nothing derived from a message takes part in it.