添加redis和rpc功能

utils/sys_conf.ts

@@ -0,0 +1,59 @@
+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] || ''
+  }
+
+}