import React from 'react';
import RcPagination from 'rc-pagination';
import Select from '../select';
import MiniSelect from './MiniSelect';
import zhCN from 'rc-pagination/lib/locale/zh_CN';

export interface PaginationProps {
  /** 当前页数*/
  current?: number;
  /** 默认的当前页数*/
  defaultCurrent?: number;
  /** 数据总数*/
  total: number;
  /** 初始的每页条数*/
  defaultPageSize?: number;
  /** 每页条数*/
  pageSize?: number;
  /** 页码改变的回调，参数是改变后的页码*/
  onChange?: (page: number) => void;
  /** 是否可以改变 pageSize */
  showSizeChanger?: boolean;
  /** 指定每页可以显示多少条*/
  pageSizeOptions?: Array<string>;
  /** pageSize 变化的回调  */
  onShowSizeChange?: (current: number, size: number) => void;
  /** 是否可以快速跳转至某页*/
  showQuickJumper?: boolean;
  /** 当为「small」时，是小尺寸分页 */
  size?: string;
  /** 当添加该属性时，显示为简单分页*/
  simple?: Object;
  /** 用于显示总共有多少条数据*/
  showTotal?: (total: number) => React.ReactNode;
  style?: React.CSSProperties;
  className?: string;
  locale?: Object;
  prefixCls?: string;
  selectPrefixCls?: string;
}

export interface PaginationContext {
  antLocale?: {
    Pagination?: any,
  };
}

export default class Pagination extends React.Component<PaginationProps, any> {
  static defaultProps = {
    locale: zhCN,
    className: '',
    prefixCls: 'ant-pagination',
    selectPrefixCls: 'ant-select',
  };

  static contextTypes = {
    antLocale: React.PropTypes.object,
  };

  context: PaginationContext;

  render() {
    let className = this.props.className;
    let selectComponentClass = Select as React.ReactNode;

    let locale;
    if (this.context.antLocale && this.context.antLocale.Pagination) {
      locale = this.context.antLocale.Pagination;
    } else {
      locale = this.props.locale;
    }

    if (this.props.size === 'small') {
      className += ' mini';
      selectComponentClass = MiniSelect;
    }

    return (
      <RcPagination
        selectComponentClass={selectComponentClass}
        selectPrefixCls={this.props.selectPrefixCls}
        {...this.props}
        locale={locale}
        className={className}
      />
    );
  }
}