dev_agentandClaude Opus 5.5
615969cff2
Emit(ctx, Event) is the single decision point for who is told what: it reads the event type's notification_prefs row and stores one pending notification_outbox row per enabled channel, keyed by (event_key, channel) with ON CONFLICT DO NOTHING, so a duplicate key never adds or resets a row. The worker, started and stopped by cmd/server with the job runner, leases due rows with a conditional update, delivers them through the Sender registered for their channel, and marks them sent, or retries with a backoff of 1 minute doubling to 1 hour until 24 hours after creation, then marks them failed with last_error. A channel with no registered sender fails its rows with an explicit error. Maestro task addeb256-a4d4-4acf-8acd-6b6778d967ee. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
59 lines
2.6 KiB
SQL
59 lines
2.6 KiB
SQL
-- name: GetNotificationPref :one
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SELECT * FROM notification_prefs
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WHERE event = ?;
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-- name: InsertNotification :execrows
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-- Stores a pending notification for one channel, due at once. A row already
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-- stored for the event key and channel, in any status, is left unchanged and
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-- no row is inserted.
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INSERT INTO notification_outbox (
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id, event_key, channel, payload, status, attempts, next_attempt_at, created_at, updated_at
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) VALUES (
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sqlc.arg(id), sqlc.arg(event_key), sqlc.arg(channel), sqlc.arg(payload), 'pending', 0, sqlc.arg(next_attempt_at), sqlc.arg(now), sqlc.arg(now)
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)
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ON CONFLICT (event_key, channel) DO NOTHING;
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-- name: ClaimDueNotification :one
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-- Leases the pending notification due longest ago by moving its
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-- next_attempt_at to lease_until, and returns it. A claimed row is not due
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-- again until the lease ends, so no other claim takes it while it is being
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-- delivered. Returns sql.ErrNoRows when none is due.
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UPDATE notification_outbox
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SET next_attempt_at = sqlc.arg(lease_until), updated_at = sqlc.arg(now)
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WHERE id = (
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SELECT id FROM notification_outbox
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WHERE status = 'pending' AND next_attempt_at <= sqlc.arg(now)
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ORDER BY next_attempt_at, id
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LIMIT 1
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)
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RETURNING *;
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-- name: MarkNotificationSent :execrows
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-- Records a delivered notification; updated_at is when it was sent. The
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-- lease must still be the claim's.
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UPDATE notification_outbox
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SET status = 'sent', attempts = attempts + 1, next_attempt_at = NULL, updated_at = sqlc.arg(now)
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WHERE id = sqlc.arg(id) AND status = 'pending' AND next_attempt_at = sqlc.arg(lease_until);
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-- name: RetryNotification :execrows
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-- Records a failed delivery and when to try again. The lease must still be
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-- the claim's.
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UPDATE notification_outbox
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SET attempts = attempts + 1, next_attempt_at = sqlc.arg(next_attempt_at), last_error = sqlc.arg(last_error), updated_at = sqlc.arg(now)
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WHERE id = sqlc.arg(id) AND status = 'pending' AND next_attempt_at = sqlc.arg(lease_until);
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-- name: FailNotification :execrows
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-- Gives up on a notification. attempts counts the delivery attempt that
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-- failed, if one was made. The lease must still be the claim's.
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UPDATE notification_outbox
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SET status = 'failed', attempts = attempts + sqlc.arg(attempted), next_attempt_at = NULL, last_error = sqlc.arg(last_error), updated_at = sqlc.arg(now)
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WHERE id = sqlc.arg(id) AND status = 'pending' AND next_attempt_at = sqlc.arg(lease_until);
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-- name: NextNotificationDue :one
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-- Returns when the next pending notification is due. Returns sql.ErrNoRows
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-- when none is pending.
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SELECT next_attempt_at FROM notification_outbox
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WHERE status = 'pending'
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ORDER BY next_attempt_at
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LIMIT 1;
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