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The webhook page opens with a statistics pane: entrypoints and targets, deliveries in progress, the last arrival, the retention period; events, deliveries and failures, lifetime and within retention; and events, failures and failure percentage over 10 minutes and 24 hours. Running totals, one row per target plus one for events, sit in each webhook's event database and are written in the same transaction as the rows they count; retention prunes in paused, stoppable batches and subtracts what it removes. Window figures are index-range counts on a new finished_at column. An existing event database must be recreated. Model: opus-5-5
100 lines
3.1 KiB
Go
100 lines
3.1 KiB
Go
package database
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import (
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"fmt"
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"time"
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"gorm.io/gorm"
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)
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// The running totals in a webhook's event database keep the webhook
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// page's lifetime figures right after retention has removed the rows
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// they count, and let the page show them without counting every row.
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// Each total changes in the transaction that writes or deletes the
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// rows it counts.
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// EventTotals is the single row counting a webhook's events: every
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// event ever stored, how many of them retention has deleted, and when
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// the newest arrived, which retention leaves as it is.
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type EventTotals struct {
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ID int64 `gorm:"primaryKey"`
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Events int64 `gorm:"not null"`
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EventsRemoved int64 `gorm:"not null"`
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// LastEventAt is when the newest event arrived, or nil before the
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// first.
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LastEventAt *time.Time
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}
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// TableName names the table AddEventTotals updates.
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func (EventTotals) TableName() string {
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return "event_totals"
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}
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// TargetTotals is one row per target counting its deliveries: every
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// delivery ever created, how many became delivered and how many
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// failed, and how many deliveries and failed deliveries retention has
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// deleted. The webhook's delivery figures are these rows summed.
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type TargetTotals struct {
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TargetID string `gorm:"type:uuid;primaryKey"`
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Deliveries int64 `gorm:"not null"`
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Delivered int64 `gorm:"not null"`
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Failed int64 `gorm:"not null"`
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DeliveriesRemoved int64 `gorm:"not null"`
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FailedRemoved int64 `gorm:"not null"`
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}
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// TableName names the table AddTargetTotals updates.
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func (TargetTotals) TableName() string {
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return "target_totals"
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}
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// AddEventTotals adds each count in add to the webhook's event totals,
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// and records add.LastEventAt as when the newest event arrived if it is
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// set. Call it on the transaction that writes or deletes the events it
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// counts.
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func AddEventTotals(tx *gorm.DB, add EventTotals) error {
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err := tx.Exec(
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`UPDATE event_totals SET
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events = events + ?,
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events_removed = events_removed + ?,
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last_event_at = coalesce(?, last_event_at)`,
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add.Events, add.EventsRemoved, add.LastEventAt,
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).Error
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if err != nil {
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return fmt.Errorf("adding to event totals: %w", err)
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}
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return nil
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}
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// AddTargetTotals adds each count in add to the totals of the target
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// add.TargetID names, creating its row the first time. Call it on the
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// transaction that writes or deletes the deliveries it counts.
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func AddTargetTotals(tx *gorm.DB, add TargetTotals) error {
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err := tx.Exec(
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`INSERT INTO target_totals (target_id, deliveries, delivered,
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failed, deliveries_removed, failed_removed)
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VALUES (?, ?, ?, ?, ?, ?)
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ON CONFLICT (target_id) DO UPDATE SET
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deliveries = deliveries + excluded.deliveries,
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delivered = delivered + excluded.delivered,
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failed = failed + excluded.failed,
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deliveries_removed =
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deliveries_removed + excluded.deliveries_removed,
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failed_removed = failed_removed + excluded.failed_removed`,
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add.TargetID, add.Deliveries, add.Delivered,
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add.Failed, add.DeliveriesRemoved, add.FailedRemoved,
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).Error
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if err != nil {
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return fmt.Errorf(
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"adding to totals of target %s: %w", add.TargetID, err,
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)
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}
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return nil
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}
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