<style lang="less">
@import "./styles/menu.less";
</style>

<template>
    <div :style="{background: bgColor}" class="ivu-shrinkable-menu" id="ivu-shrinkable-menu">
        <slot name="top"></slot>
        <sidebar-menu 
            v-show="!shrink"
            :menu-theme="theme" 
            :menu-list="menuList" 
            :open-names="openNames"
            @on-change="handleChange"
        ></sidebar-menu>
        <sidebar-menu-shrink 
            v-show="shrink"
            :menu-theme="theme" 
            :menu-list="menuList" 
            :icon-color="shrinkIconColor"
            @on-change="handleChange"
        ></sidebar-menu-shrink>
    </div>
</template>

<script>
import sidebarMenu from "./components/sidebarMenu.vue";
import sidebarMenuShrink from "./components/sidebarMenuShrink.vue";
import util from "@/libs/util";
export default {
  name: "shrinkableMenu",
  data() {
    return {
      loading: true
    };
  },
  components: {
    sidebarMenu,
    sidebarMenuShrink
  },
  props: {
    shrink: {
      type: Boolean,
      default: false
    },
    menuList: {
      type: Array,
      required: true
    },
    theme: {
      type: String,
      default: "dark",
      validator(val) {
        return util.oneOf(val, ["dark", "light"]);
      }
    },
    beforePush: {
      type: Function
    },
    openNames: {
      type: Array
    }
  },
  computed: {
    bgColor() {
      return this.theme === "dark" ? "#495060" : "#fff";
    },
    shrinkIconColor() {
      return this.theme === "dark" ? "#fff" : "#495060";
    }
  },
  methods: {
    handleChange(name) {
      let willpush = true;
      if (this.beforePush !== undefined) {
        if (!this.beforePush(name)) {
          willpush = false;
        }
      }
      if (willpush) {
        this.$router.push({
          name: name
        });
      }
      this.$emit("on-change", name);
    }
  },
  created() {
    this.loading = true;
  },
  mounted() {
    this.$nextTick(() => {
      this.loading = false;
    });
  }
};
</script>
