<script lang="ts" setup>
import type { SetupContext } from "vue";

import type { MenuRecordRaw } from "../../types";

import { computed, useSlots, watch } from "vue";

import { useRefresh } from "../../hooks";
import { $t, i18n } from "../../locales";
import { preferences, updatePreferences, usePreferences } from "../../preferences";
import { useLockStore } from "../../stores";
import { cloneDeep, mapTree } from "../../utils";

import { VbenAdminLayout } from "../../layout-ui";
import { VbenBackTop, VbenLogo } from "../../shadcn-ui";

import { Breadcrumb, CheckUpdates, Preferences } from "../widgets";
import { LayoutContent, LayoutContentSpinner } from "./content";
import { Copyright } from "./copyright";
import { LayoutFooter } from "./footer";
import { LayoutHeader } from "./header";
import { LayoutExtraMenu, LayoutMenu, LayoutMixedMenu, useExtraMenu, useMixedMenu } from "./menu";
import { LayoutTabbar } from "./tabbar";

defineOptions({ name: "BasicLayout" });

const emit = defineEmits<{ clearPreferencesAndLogout: [] }>();

const { isDark, isHeaderNav, isMixedNav, isMobile, isSideMixedNav, isHeaderMixedNav, isHeaderSidebarNav, layout, preferencesButtonPosition, sidebarCollapsed, theme } = usePreferences();
const lockStore = useLockStore();
const { refresh } = useRefresh();

const sidebarTheme = computed(() => {
  const dark = isDark.value || preferences.theme.semiDarkSidebar;
  return dark ? "dark" : "light";
});

const headerTheme = computed(() => {
  const dark = isDark.value || preferences.theme.semiDarkHeader;
  return dark ? "dark" : "light";
});

const logoClass = computed(() => {
  const { collapsedShowTitle } = preferences.sidebar;
  const classes: string[] = [];

  if (collapsedShowTitle && sidebarCollapsed.value && !isMixedNav.value) {
    classes.push("mx-auto");
  }

  if (isSideMixedNav.value) {
    classes.push("flex-center");
  }

  return classes.join(" ");
});

const isMenuRounded = computed(() => {
  return preferences.navigation.styleType === "rounded";
});

const logoCollapsed = computed(() => {
  if (isMobile.value && sidebarCollapsed.value) {
    return true;
  }
  if (isHeaderNav.value || isMixedNav.value || isHeaderSidebarNav.value) {
    return false;
  }
  return sidebarCollapsed.value || isSideMixedNav.value || isHeaderMixedNav.value;
});

const showHeaderNav = computed(() => {
  return !isMobile.value && (isHeaderNav.value || isMixedNav.value || isHeaderMixedNav.value);
});

const { handleMenuSelect, handleMenuOpen, headerActive, headerMenus, sidebarActive, sidebarMenus, mixHeaderMenus, sidebarVisible } = useMixedMenu();

// 侧边多列菜单
const { extraActiveMenu, extraMenus, handleDefaultSelect, handleMenuMouseEnter, handleMixedMenuSelect, handleSideMouseLeave, sidebarExtraVisible } = useExtraMenu(mixHeaderMenus);

/**
 * 包装菜单，翻译菜单名称
 * @param menus 原始菜单数据
 * @param deep 是否深度包装。对于双列布局，只需要包装第一层，因为更深层的数据会在扩展菜单中重新包装
 */
function wrapperMenus(menus: MenuRecordRaw[], deep: boolean = true) {
  return deep
    ? mapTree(menus, (item: any) => {
        return { ...cloneDeep(item), name: $t(item.name) };
      })
    : menus.map((item) => {
        return { ...cloneDeep(item), name: $t(item.name) };
      });
}

function toggleSidebar() {
  updatePreferences({
    sidebar: {
      hidden: !preferences.sidebar.hidden
    }
  });
}

function clearPreferencesAndLogout() {
  emit("clearPreferencesAndLogout");
}

watch(
  () => preferences.app.layout,
  async (val) => {
    if (val === "sidebar-mixed-nav" && preferences.sidebar.hidden) {
      updatePreferences({
        sidebar: {
          hidden: false
        }
      });
    }
  }
);

// 语言更新后，刷新页面
// i18n.global.locale会在preference.app.locale变更之后才会更新，因此watchpreference.app.locale是不合适的，刷新页面时可能语言配置尚未完全加载完成
watch(i18n.global.locale, refresh, { flush: "post" });

const slots: SetupContext["slots"] = useSlots();
const headerSlots = computed(() => {
  return Object.keys(slots).filter((key) => key.startsWith("header-"));
});
</script>

<template>
  <VbenAdminLayout
    v-model:sidebar-extra-visible="sidebarExtraVisible"
    :content-compact="preferences.app.contentCompact"
    :footer-enable="preferences.footer.enable"
    :footer-fixed="preferences.footer.fixed"
    :header-hidden="preferences.header.hidden"
    :header-mode="preferences.header.mode"
    :header-theme="headerTheme"
    :header-toggle-sidebar-button="preferences.widget.sidebarToggle"
    :header-visible="preferences.header.enable"
    :is-mobile="preferences.app.isMobile"
    :layout="layout"
    :sidebar-collapse="preferences.sidebar.collapsed"
    :sidebar-collapse-show-title="preferences.sidebar.collapsedShowTitle"
    :sidebar-enable="sidebarVisible"
    :sidebar-expand-on-hover="preferences.sidebar.expandOnHover"
    :sidebar-extra-collapse="preferences.sidebar.extraCollapse"
    :sidebar-hidden="preferences.sidebar.hidden"
    :sidebar-theme="sidebarTheme"
    :sidebar-width="preferences.sidebar.width"
    :tabbar-enable="preferences.tabbar.enable"
    :tabbar-height="preferences.tabbar.height"
    @side-mouse-leave="handleSideMouseLeave"
    @toggle-sidebar="toggleSidebar"
    @update:sidebar-collapse="(value: boolean) => updatePreferences({ sidebar: { collapsed: value } })"
    @update:sidebar-enable="(value: boolean) => updatePreferences({ sidebar: { enable: value } })"
    @update:sidebar-expand-on-hover="(value: boolean) => updatePreferences({ sidebar: { expandOnHover: value } })"
    @update:sidebar-extra-collapse="(value: boolean) => updatePreferences({ sidebar: { extraCollapse: value } })"
  >
    <!-- logo -->
    <template #logo>
      <VbenLogo v-if="preferences.logo.enable" :class="logoClass" :collapsed="logoCollapsed" :src="preferences.logo.source" :text="preferences.app.name" :theme="showHeaderNav ? headerTheme : theme" />
    </template>
    <!-- 头部区域 -->
    <template #header>
      <LayoutHeader :theme="theme" @clear-preferences-and-logout="clearPreferencesAndLogout">
        <template v-if="!showHeaderNav && preferences.breadcrumb.enable" #breadcrumb>
          <Breadcrumb :hide-when-only-one="preferences.breadcrumb.hideOnlyOne" :show-home="preferences.breadcrumb.showHome" :show-icon="preferences.breadcrumb.showIcon" :type="preferences.breadcrumb.styleType" />
        </template>
        <template v-if="showHeaderNav" #menu>
          <LayoutMenu :default-active="headerActive" :menus="wrapperMenus(headerMenus)" :rounded="isMenuRounded" :theme="headerTheme" class="w-full" mode="horizontal" @select="handleMenuSelect" />
        </template>
        <template #user-dropdown>
          <slot name="user-dropdown"></slot>
        </template>
        <template #notification>
          <slot name="notification"></slot>
        </template>
        <template v-for="item in headerSlots" #[item]>
          <slot :name="item"></slot>
        </template>
      </LayoutHeader>
    </template>
    <!-- 侧边菜单区域 -->
    <template #menu>
      <LayoutMenu
        :accordion="preferences.navigation.accordion"
        :collapse="preferences.sidebar.collapsed"
        :collapse-show-title="preferences.sidebar.collapsedShowTitle"
        :default-active="sidebarActive"
        :menus="wrapperMenus(sidebarMenus)"
        :rounded="isMenuRounded"
        :theme="sidebarTheme"
        mode="vertical"
        @open="handleMenuOpen"
        @select="handleMenuSelect"
      />
    </template>
    <template #mixed-menu>
      <LayoutMixedMenu
        :active-path="extraActiveMenu"
        :menus="wrapperMenus(mixHeaderMenus, false)"
        :rounded="isMenuRounded"
        :theme="sidebarTheme"
        @default-select="handleDefaultSelect"
        @enter="handleMenuMouseEnter"
        @select="handleMixedMenuSelect"
      />
    </template>
    <!-- 侧边额外区域 -->
    <template #side-extra>
      <LayoutExtraMenu :accordion="preferences.navigation.accordion" :collapse="preferences.sidebar.extraCollapse" :menus="wrapperMenus(extraMenus)" :rounded="isMenuRounded" :theme="sidebarTheme" />
    </template>
    <template #side-extra-title>
      <VbenLogo v-if="preferences.logo.enable" :text="preferences.app.name" :theme="theme" />
    </template>

    <template #tabbar>
      <LayoutTabbar v-if="preferences.tabbar.enable" :show-icon="preferences.tabbar.showIcon" :theme="theme" />
    </template>

    <!-- 主体内容 -->
    <template #content>
      <LayoutContent />
    </template>

    <template v-if="preferences.transition.loading" #content-overlay>
      <LayoutContentSpinner />
    </template>

    <!-- 页脚 -->
    <template v-if="preferences.footer.enable" #footer>
      <LayoutFooter>
        <Copyright v-if="preferences.copyright.enable" v-bind="preferences.copyright" />
        <slot name="footer"></slot>
      </LayoutFooter>
    </template>

    <template #extra>
      <slot name="extra"></slot>
      <CheckUpdates v-if="preferences.app.enableCheckUpdates" :check-updates-interval="preferences.app.checkUpdatesInterval" />

      <Transition v-if="preferences.widget.lockScreen" name="slide-up">
        <slot v-if="lockStore.isLockScreen" name="lock-screen"></slot>
      </Transition>

      <template v-if="preferencesButtonPosition.fixed">
        <Preferences class="z-100 fixed bottom-20 right-0" @clear-preferences-and-logout="clearPreferencesAndLogout" />
      </template>
      <VbenBackTop />
    </template>
  </VbenAdminLayout>
</template>
