Flags, expunge, move, copy and folder deletion each existed twice: once for IMAP (FlagRepository, ExpungeRepository, CopyRepository) and once for the webmail (WebmailRepository). They kept the cached numbers true on their own and drifted: - reading a message over IMAP never moved the folder's unread counter - deleting in the webmail, or deleting a folder, never gave the quota back - an IMAP expunge could push a counter below zero MailStore now holds each state change once, in one transaction, with the same rules everywhere: counters never go negative, a change that alters what a client can observe raises the folder's modseq (one that alters nothing does not), the quota follows the bytes, and a message is located by folder. The four repositories are thin adapters that only translate how each path names a message. The contract test added before this change (which failed on 8 of its cases) now passes, as does the full suite.
23 lines
576 B
Go
23 lines
576 B
Go
package postgres
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import (
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"context"
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"github.com/jackc/pgx/v5/pgxpool"
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)
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// ExpungeRepository implements port.ExpungeRepository (IMAP EXPUNGE). MailStore
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// does the work - counters, modseq and the quota all move there, for every path.
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type ExpungeRepository struct {
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store *MailStore
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}
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func NewExpungeRepository(pool *pgxpool.Pool) *ExpungeRepository {
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return &ExpungeRepository{store: NewMailStore(pool)}
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}
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func (r *ExpungeRepository) Expunge(ctx context.Context, folderID string, uids []uint32) error {
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_, err := r.store.Expunge(ctx, folderID, uids)
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return err
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}
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