express-template/utils/sys_conf.ts

59 lines
1.2 KiB
TypeScript

import { RedisClientDriver } from './redis/driver'
import DebugFunc from 'debug'
import { event } from '../event'
const debug = DebugFunc('SystemConfig')
interface SystemConfig{
/**WebSocketJsonRpc的服务端token */
WS_JSON_RPC_SERVER_TOKEN:string,
}
const config:SystemConfig = {
WS_JSON_RPC_SERVER_TOKEN:'',
}
async function sync (client:RedisClientDriver,name:keyof SystemConfig,desc:string) {
const val = await client.hget('config',name)
if(!val) {
const msg = `缺少系统配置项:${desc} [ ${name} ]`
throw new Error(msg)
}
config[name] = val
}
function sync_error_handle (error:Error) {
debug(error.message)
return Promise.reject(error)
}
async function prepare (client:RedisClientDriver):Promise<void> {
await sync(client,'WS_JSON_RPC_SERVER_TOKEN','rpc密钥').catch(sync_error_handle)
}
event.on('redis-all-connected',async ()=>{
const client = RedisClientDriver.getClient('normal')!
await prepare(client)
event.emit('system-config-sync-complete')
debug('系统配置完成',config)
})
export default class {
static all ():SystemConfig {
return Object.freeze(
Object.assign({},config)
)
}
static get (name:keyof SystemConfig):string {
return this.all()[name] || ''
}
}