44 lines
1.6 KiB
TypeScript
44 lines
1.6 KiB
TypeScript
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import { fetchPublicSystemParameters, unwrapSystemSettings, type PublicSystemParameters } from '@/api/ops/systemSettings'
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export const SystemParameterCode = {
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DeviceOfflineSeconds: 'device_offline_seconds',
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PageRefreshSeconds: 'page_refresh_seconds',
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AlertRecoveryWaitSeconds: 'alert_recovery_wait_seconds',
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MonitoringRetentionDays: 'monitoring_retention_days',
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OperationLogRetentionDays: 'operation_log_retention_days',
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LoginBackgroundRotationSeconds: 'login_background_rotation_seconds',
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} as const
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const requiredCodes = Object.values(SystemParameterCode)
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let cached: PublicSystemParameters | null = null
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let loading: Promise<PublicSystemParameters> | null = null
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export async function loadSystemParameters(force = false): Promise<PublicSystemParameters> {
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if (cached && !force) return cached
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if (loading && !force) return loading
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loading = fetchPublicSystemParameters().then((response) => {
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const values = unwrapSystemSettings<PublicSystemParameters>(response)
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if (!values || requiredCodes.some((code) => !Number.isInteger(values[code]))) {
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throw new Error('系统参数未完整初始化')
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}
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cached = values
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return values
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})
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try {
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return await loading
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} finally {
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loading = null
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}
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}
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export async function getSystemParameter(code: (typeof SystemParameterCode)[keyof typeof SystemParameterCode]): Promise<number> {
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const values = await loadSystemParameters()
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const value = values[code]
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if (!Number.isInteger(value)) throw new Error(`系统参数 ${code} 不存在`)
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return value
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}
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export function invalidateSystemParameters() {
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cached = null
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}
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