import { initUserInfo, findMenuItem } from './utils';
import { setObjectToSessionStorage, findItemFromList, treeDataTranslate } from '@/utils';

export default {
  setCollapse: (state, isCollapse) => {
    state.isCollapse = isCollapse;
  },
  setClientHeight: (state, height) => {
    state.documentClientHeight = height;
  },
  setUserInfo: (state, info) => {
    setObjectToSessionStorage('userInfo', info);
    state.userInfo = initUserInfo(info);
  },
  addCachePage (state, name) {
    if (state.cachePages.indexOf(name) === -1) {
      let temp = [...state.cachePages];
      temp.push(name);
      setObjectToSessionStorage('cachePages', temp);
      state.cachePages = temp;
    }
  },
  removeCachePage (state, name) {
    let pos = state.cachePages.indexOf(name);
    if (pos !== -1) {
      let temp = [...state.cachePages];
      temp.splice(pos, 1);
      setObjectToSessionStorage('cachePages', temp);
      state.cachePages = temp;
    }
  },
  clearCachePage (state) {
    setObjectToSessionStorage('cachePages', []);
    state.cachePages = [];
  },
  addTag (state, id) {
    if (id == null || id === '') return;
    // 新增的标签是否存在
    let tagList = state.tagList;
    let tagItem = null;
    if (Array.isArray(tagList)) {
      tagItem = findItemFromList(tagList, id, 'menuId');
    }
    if (tagItem != null) return;
    // 添加新增标签以及更新页面缓存
    let menuList = state.menuList;
    let menuObject = null;
    if (Array.isArray(menuList)) {
      for (let i = 0; i < menuList.length; i++) {
        menuObject = findMenuItem(menuList[i], id);
        if (menuObject != null) break;
      }
    }
    if (menuObject != null) {
      state.tagList = [...state.tagList, menuObject];
      if (Array.isArray(state.cachePages) && state.cachePages.indexOf(menuObject.formRouterName) === -1) {
        state.cachePages = [...state.cachePages, menuObject.formRouterName];
      }
    }
    setObjectToSessionStorage('cachePages', state.cachePages);
    setObjectToSessionStorage('tagList', state.tagList);
  },
  removeTag (state, id) {
    if (id == null || id === '') return;
    // 移除标签
    let nextPos = -1;
    let tagItem = null;
    for (let i = 0; i < state.tagList.length; i++) {
      if (state.tagList[i].menuId === id) {
        tagItem = state.tagList[i];
        state.tagList.splice(i, 1);
        nextPos = Math.min(i, state.tagList.length - 1);
      }
    }
    // let tagItem = findItemFromList(state.tagList, id, 'menuId', true);
    if (tagItem == null) return;
    // 移除页面缓存
    findItemFromList(state.cachePages, tagItem.formRouterName, undefined, true);
    setObjectToSessionStorage('cachePages', state.cachePages);
    setObjectToSessionStorage('tagList', state.tagList);
    // 如果移除的是当前显示页面，重新选择显示页面
    let showTag = null;
    if (state.currentMenuId === id) {
      showTag = state.tagList[nextPos];
      let tempId = (showTag || {}).menuId;
      if (setObjectToSessionStorage('currentMenuId', tempId)) state.currentMenuId = tempId;
    }
  },
  closeOtherTags (state, id) {
    if (id == null || id === '') return;
    // 移除其他所有标签
    if (Array.isArray(state.tagList)) {
      state.tagList = state.tagList.filter((item) => {
        return item.menuId === id;
      });
    }

    let menuObject = state.tagList[0];
    if (menuObject && menuObject.formRouterName && menuObject.formRouterName !== '') {
      state.cachePages = [menuObject.formRouterName];
      if (setObjectToSessionStorage('currentMenuId', menuObject.menuId)) state.currentMenuId = menuObject.menuId;
    }
    setObjectToSessionStorage('cachePages', state.cachePages);
    setObjectToSessionStorage('tagList', state.tagList);
  },
  clearAllTags (state) {
    if (setObjectToSessionStorage('currentMenuId', undefined)) state.currentMenuId = undefined;
    if (setObjectToSessionStorage('cachePages', [])) state.cachePages = [];
    if (setObjectToSessionStorage('tagList', [])) state.tagList = [];
  },
  setMenuList: (state, list) => {
    if (Array.isArray(list)) {
      if (setObjectToSessionStorage('menuList', list)) state.menuList = treeDataTranslate(list, 'menuId', 'parentId');
    }
  },
  setCurrentMenuId: (state, menuId) => {
    let menuItem = null;
    if (setObjectToSessionStorage('currentMenuId', menuId)) state.currentMenuId = menuId;
    if (Array.isArray(state.tagList) && Array.isArray(state.menuList)) {
      for (let i = 0; i < state.menuList.length; i++) {
        menuItem = findMenuItem(state.menuList[i], menuId, 'menuId');
        if (menuItem != null) {
          // 添加新的tag
          let tagItem = findItemFromList(state.tagList, menuId, 'menuId');
          if (tagItem == null) {
            state.tagList = [...state.tagList, menuItem];
            setObjectToSessionStorage('tagList', state.tagList);
          }
          // 添加新缓存
          if (Array.isArray(state.cachePages) && state.cachePages.indexOf(menuItem.formRouterName) === -1) {
            state.cachePages = [...state.cachePages, menuItem.formRouterName];
            setObjectToSessionStorage('cachePages', state.cachePages);
          }
          break;
        }
      }
    }
  }
}