import { Effect, Reducer } from 'umi';

export interface BreadcrumbItem {
  path: string;
  breadcrumbName: string;
}

export interface BreadcrumbModelState {
  breadcrumbs: BreadcrumbItem[];
}

export interface BreadcrumbModelType {
  namespace: 'breadcrumb';
  state: BreadcrumbModelState;
  effects: {
    updateBreadcrumbs: Effect;
  };
  reducers: {
    saveBreadcrumbs: Reducer<BreadcrumbModelState>;
  };
}

/**
 * 生成面包屑数据
 * @param pathname 当前路径
 * @param intl 国际化对象
 */
const generateBreadcrumbs = (pathname: string, intl: any): BreadcrumbItem[] => {
  // 如果是首页，直接返回首页
  if (pathname === '/' || pathname === '/index') {
    return [
      {
        path: '/',
        breadcrumbName: intl.formatMessage({ id: 'menu.首页' }, { defaultMessage: '首页' }),
      },
    ];
  }

  // 构建面包屑数据
  const breadcrumbs = [
    {
      path: '/',
      breadcrumbName: intl.formatMessage({ id: 'menu.首页' }, { defaultMessage: '首页' }),
    },
  ];

  // 按照斜杠分割路径
  const pathSegments = pathname.split('/').filter(segment => segment);
  let currentPath = '';

  // 构建每一级的路径和对应的面包屑名称
  for (let i = 0; i < pathSegments.length; i++) {
    const segment = pathSegments[i];
    currentPath += `/${segment}`;

    // 尝试使用多语言配置
    // 先尝试完整路径的多语言配置
    let menuKey = `menu.${pathSegments.slice(0, i + 1).join('/')}`;
    let menuName = intl.formatMessage({ id: menuKey }, { defaultMessage: '' });

    // 如果完整路径没有对应的多语言，则尝试使用当前段的多语言
    if (!menuName) {
      menuKey = `menu.${segment}`;
      menuName = intl.formatMessage({ id: menuKey }, { defaultMessage: '' });
    }

    // 如果仍然没有找到多语言配置，尝试使用特定页面的多语言配置
    if (!menuName) {
      // 处理特殊情况，如数据统计下的子页面
      if (pathSegments[0] === 'dataStatistics') {
        switch (segment) {
          case 'supplierEvaluateStatistics':
            menuName = intl.formatMessage({ id: 'menu.供应商评价情况统计' }, { defaultMessage: '供应商评价情况统计' });
            break;
          case 'supplierAnnualStatistics':
            menuName = intl.formatMessage({ id: 'menu.供应商年审情况统计' }, { defaultMessage: '供应商年审情况统计' });
            break;
          case 'supplierQualificationWarningStatistics':
            menuName = intl.formatMessage({ id: 'menu.供应商资质预警统计' }, { defaultMessage: '供应商资质预警统计' });
            break;
          case 'supplierExitStatistics':
            menuName = intl.formatMessage({ id: 'menu.供应商清退情况统计' }, { defaultMessage: '供应商清退情况统计' });
            break;
          default:
            menuName = segment;
        }
      } else if (pathSegments[0] === 'supplierEvaluate') {
        // 处理供应商评价模块
        menuName = intl.formatMessage({ id: `menu.${segment}` }, { defaultMessage: segment });
      } else if (pathSegments[0] === 'supplierAnnual') {
        // 处理供应商年审模块
        menuName = intl.formatMessage({ id: `menu.${segment}` }, { defaultMessage: segment });
      } else {
        menuName = segment;
      }
    }

    breadcrumbs.push({
      path: currentPath,
      breadcrumbName: menuName || segment,
    });
  }

  return breadcrumbs;
};

const BreadcrumbModel: BreadcrumbModelType = {
  namespace: 'breadcrumb',

  state: {
    breadcrumbs: [],
  },

  effects: {
    *updateBreadcrumbs({ payload }, { put }) {
      const { pathname, intl } = payload;
      console.log(pathname)
      const breadcrumbs = generateBreadcrumbs(pathname, intl);
      yield put({
        type: 'saveBreadcrumbs',
        payload: breadcrumbs,
      });
    },
  },

  reducers: {
    saveBreadcrumbs(state, { payload }) {
      return {
        ...state,
        breadcrumbs: payload,
      };
    },
  },
};

export default BreadcrumbModel;