111 lines
3.8 KiB
TypeScript
111 lines
3.8 KiB
TypeScript
import {Injectable} from '@angular/core';
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import {LoginReq, User} from '../class/User';
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import {ApiService} from '../api/api.service';
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import {Observable, Observer} from 'rxjs';
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import {Response} from '../class/HttpReqAndResp';
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import {LocalStorageService} from './local-storage.service';
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@Injectable({
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providedIn: 'root'
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})
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export class GlobalUserService {
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constructor(private apiService: ApiService,
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private localStorageService: LocalStorageService) {
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}
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private lastRequestTime: number;
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// 存储订阅者
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private userObserverArray: Observer<Response<User>>[] = [];
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watchUserInfo(observer: Observer<Response<User>>) {
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if (this.userObserverArray.indexOf(observer) < 0) this.userObserverArray.push(observer);
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const user = this.localStorageService.getUser();
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// 判断本地缓存的用户信息是否符合要求，符合要求返回本地缓存
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if (this.localStorageService.isLogin() && user && !this.localStorageService.checkNeedNet()) {
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observer.next(new Response<User>(user));
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return {
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unsubscribe() {
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observer.complete();
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}
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}
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}
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if (this.lastRequestTime && Date.now() - this.lastRequestTime < 1000) {
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return {
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unsubscribe() {
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observer.complete();
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}
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}
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}
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// 不符合 请求网络数据并更新缓存
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// 向订阅者传数据
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this.lastRequestTime = Date.now();
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const subscription = this.apiService.userInfo().subscribe({
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next: o => {
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this.localStorageService.setUser(o.result);
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this.userObserverArray.forEach(ob => ob.next(o));
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},
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error: err => {
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// console.debug('登录过期 token错误 等等');
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if (err.code === -1) {
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// 请求重复
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return
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}
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this.localStorageService.removeToken();
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this.userObserverArray.forEach(ob => ob.next(new Response<User>(null)));
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this.userObserverArray.forEach(ob => ob.error(err));
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}
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});
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return {
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unsubscribe() {
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observer.complete();
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subscription.unsubscribe()
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}
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}
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}
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login(loginReq: LoginReq, observer: Observer<Response<User>>) {
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const oob = new Observable<Response<User>>(o => observer = o);
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const subscription = this.apiService.login(loginReq).subscribe({
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next: o => {
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// 登录成功
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this.localStorageService.setToken(o.result.token);
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this.localStorageService.setUser(o.result);
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// this.userObserver.next(o);
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this.userObserverArray.forEach(ob => ob.next(o))
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observer.next(o);
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observer.complete();
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},
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error: err => {
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observer.error(err);
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observer.complete();
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}
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});
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return {
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unsubscribe() {
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observer.complete();
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subscription.unsubscribe();
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}
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};
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}
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logout(observer?: Observer<Response<string>>) {
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// 如果不需要返回消息也ok
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this.apiService.logout().subscribe(data => {
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this.localStorageService.clear();
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this.userObserverArray.forEach(ob => ob.next(new Response<User>(null)))
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if (observer) {
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observer.next(data);
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observer.complete();
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}
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},
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error => {
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if (observer) {
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observer.error(error);
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observer.complete();
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}
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})
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}
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}
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