import {Component, Vue} from 'vue-property-decorator'
import Router from 'vue-router';



// const routerPush: any = Router.prototype.push;
// 添加 vue 属性类型声明
// @ts-ignore
declare module "vue/types/vue" {
    interface Vue {
        Mixin_recordRouterLinkData(targetRouter: string, saveParams: any, routeParams?: any): void;
        Mixin_goBack(): void;
        routeName: string;
        Mixin_isBack: boolean;
    }
}

@Component({
    beforeRouteEnter (to, from, next) {
        next((vm: any) => {
            // 通过 `vm` 访问组件实例
            // vm.targetRoute = (vm.$route.query.target? vm.$route.query.target : '') as string;
            const jumpLen = window['ROUTER_LINK_JUMP'] && window['ROUTER_LINK_JUMP'].length || 0;
            if (jumpLen > 0 && window['ROUTER_LINK_JUMP'][jumpLen - 1]) {
                // 这是判断返回后的
                if (window['ROUTER_LINK_JUMP'][jumpLen - 1].backRoute === vm.routeName && from.path === window['ROUTER_LINK_JUMP'][jumpLen - 1].targetRoute) {
                    let params = window['ROUTER_LINK_JUMP'].pop();
                    console.log('返回传参',params);
                    // params.saveParamskey && ((vm as any)[params.saveParamskey] = params.saveParamsValue);
                    let keys = Object.keys(params.saveParams);
                    keys.forEach(key => {
                        (vm as any)[key] = params.saveParams[key];
                    })
                }

                // 这是判断是否可以返回的
                const len = window['ROUTER_LINK_JUMP'].length;
                if (len > 0 && window['ROUTER_LINK_JUMP'][len - 1].targetRoute === vm.routeName) {
                    vm.Mixin_isBack = true;
                } else {
                    vm.Mixin_isBack = false;
                }
            }

        })
    },

})
export default class BackMixin extends Vue {
    public routeName: string = '';   // 当前页面路由路径
    public Mixin_isBack: boolean = false;          // 当前页面是否具备返回
    public $router: any;
    public $route: any;

    public created() {
        // 不知为何，执行了超多次
        this.routeName = this.$route.path;
    }

    /**
     * 返回
     */
    public Mixin_goBack() {
        this.$router.back();
    }

}