74 lines
1.9 KiB
TypeScript
74 lines
1.9 KiB
TypeScript
import { query } from '../db/client.js'
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export type RealtimeEventRow = {
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id: number
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event_type: string
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entity_id: number
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scopes: unknown
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operation: string
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data: unknown
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admin_audience: boolean
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worker_ids: unknown
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broadcast_workers: boolean
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occurred_at: string
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}
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export async function createRealtimeEvent(input: {
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eventType: string
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entityId: number
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scopes: string[]
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operation: string
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data?: unknown
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adminAudience: boolean
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workerIds: number[]
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broadcastWorkers: boolean
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occurredAt: string
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}): Promise<RealtimeEventRow> {
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const result = await query<RealtimeEventRow>(
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`
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INSERT INTO realtime_events (
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event_type, entity_id, scopes, operation, data,
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admin_audience, worker_ids, broadcast_workers, occurred_at
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) VALUES ($1, $2, $3::jsonb, $4, $5::jsonb, $6, $7::jsonb, $8, $9)
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RETURNING *
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`,
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[
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input.eventType,
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input.entityId,
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JSON.stringify(input.scopes),
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input.operation,
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input.data === undefined ? null : JSON.stringify(input.data),
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input.adminAudience,
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JSON.stringify(input.workerIds),
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input.broadcastWorkers,
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input.occurredAt,
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],
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)
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const row = result.rows[0]
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if (!row) throw new Error('realtime_event_create_failed')
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// 事件仅用于短期断线补发；每 100 条清理一次，避免每次业务事件都额外触发 DELETE。
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if (Number(row.id) % 100 === 0) {
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await query(
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`
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DELETE FROM realtime_events
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WHERE id < GREATEST(0, (SELECT COALESCE(MAX(id), 0) - 500 FROM realtime_events))
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`,
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)
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}
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return row
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}
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export async function listRealtimeEventsAfter(eventId: number, limit = 500) {
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const result = await query<RealtimeEventRow>(
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`
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SELECT * FROM realtime_events
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WHERE id > $1
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ORDER BY id ASC
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LIMIT $2
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`,
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[Math.max(0, Number(eventId) || 0), Math.min(500, Math.max(1, Number(limit) || 500))],
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)
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return result.rows
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}
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