import {
  activateSourceSettingsRevision,
  createSourceSettingsRevision,
  fetchSourceSettingsRevisions,
} from './sourceConnections'
import type { SourceConnectionListItem, SourceSettingsRevision } from './sourceConnections'

export function configuredInterval(connection: SourceConnectionListItem, revisions: SourceSettingsRevision[]): number {
  const active = revisions.find((item) => item.state === 'active')
  if (active) {
    const seconds = Number(active.refresh_interval_seconds ?? 0)
    if (!Number.isInteger(seconds) || seconds < 0) throw new Error('刷新周期无效，未修改设置')
    return seconds
  }
  if (connection.schedule_configured) throw new Error(`${connection.name}：无法读取活动刷新策略，未修改设置`)
  return 0
}

export async function saveSourceRefresh(
  connection: SourceConnectionListItem,
  enabled: boolean,
  interval?: number
): Promise<void> {
  const seconds = interval ?? configuredInterval(connection, await fetchSourceSettingsRevisions(connection.id))
  if (!enabled && connection.source_type === 'manual') throw new Error('手工来源不支持自动刷新')
  const created = await createSourceSettingsRevision(connection.id, {
    source_type: connection.source_type,
    name: connection.name,
    endpoint: '',
    credential_ref: '',
    enabled,
    schedule: { refresh_interval_seconds: seconds > 0 ? seconds : null },
  })
  await activateSourceSettingsRevision(connection.id, created.id)
}