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import React from 'react';
import { List, Spin, ConfigProvider } from 'antd';
// eslint-disable-next-line import/no-unresolved
import classNames from 'classnames';
import './style/list.less';
import noMessage from '@/assets/images/system/notifications/没有消息.png';
import { Alarm, Case, Notice, Unknown } from './templates';
import { MESSAGE_TYPE } from './constants';
const Empty = ({ emptyText, ...props }) => {
const { getPrefixCls } = React.useContext(ConfigProvider.ConfigContext);
const prefixCls = props.prefixCls || getPrefixCls();
return (
<div className={`${prefixCls}-notFound`}>
{/* <img src="https://gw.alipayobjects.com/zos/rmsportal/sAuJeJzSKbUmHfBQRzmZ.svg" alt="not found" /> */}
<img src={noMessage} alt="not found" />
<div>{emptyText}</div>
</div>
);
};
class NoticeList extends React.Component {
constructor(props) {
super(props);
this.emptyText = props.emptyText;
this.confirmRead = props.confirmRead;
this.handlerSysDetail = props.handlerSysDetail;
this.handlerUnknowDetail = props.handlerUnknowDetail;
this.loadMore = props.loadMore;
this.hasMore = props.hasMore;
this.container = React.createRef();
this.state = {
isLoading: false,
};
this.mounted = false;
this.handleScrollCallback = this.throttle(this.handleScroll.bind(this), 30).bind(this);
}
componentDidMount() {
this.mounted = true;
if (this.container.current) {
this.container.current.addEventListener('scroll', this.handleScrollCallback);
}
}
componentWillUnmount() {
this.mounted = false;
}
throttle(fn, wait) {
/* eslint-disable */
let pre = Date.now();
return function () {
const context = this;
// eslint-disable-next-line prefer-rest-params
const args = arguments;
const now = Date.now();
if (now - pre >= wait) {
fn.apply(context, args);
pre = Date.now();
}
};
}
handleScroll(e) {
e.stopPropagation();
if (!this.mounted) return;
if (!this.container.current) return;
const { current } = this.container;
if (current.scrollHeight - current.scrollTop - current.offsetHeight <= 100) {
this.handleLoadMore();
}
}
handleLoadMore() {
if (this.state.isLoading) return;
if (!this.hasMore()) return;
this.setState(
{
isLoading: true,
},
() => {
if (!this.loadMore) return;
this.loadMore().then((data) => {
if (!this.mounted) return;
this.setState({
isLoading: false,
});
});
},
);
}
render() {
const { getPrefixCls } = this.context;
const prefixCls =
this.props.prefixCls || getPrefixCls ? getPrefixCls('head-notifier-list') : '';
if (!this.props.data || this.props.data.length === 0) {
return <Empty emptyText={this.emptyText} prefixCls={prefixCls} />;
}
return (
<div className={`${prefixCls}-container`} ref={this.container}>
<List
className={`${prefixCls}-list`}
dataSource={this.props.data}
renderItem={(item, i) => {
const itemCls = classNames(`${prefixCls}-item`, {
[`${prefixCls}-read`]: item.read,
});
let messageTemplate = <></>;
switch (item.infoClasses) {
case MESSAGE_TYPE.ALARM_TYPE:
messageTemplate = (
<Alarm message={item} confirmRead={this.confirmRead} config={this.props.config} handlerUnknowDetail={this.handlerUnknowDetail} />
);
break;
case MESSAGE_TYPE.CASE_TYPE:
messageTemplate = <Case message={item} confirmRead={this.confirmRead} handlerUnknowDetail={this.handlerUnknowDetail} />;
break;
case MESSAGE_TYPE.SYS_TYPE:
messageTemplate = (
<Notice
message={item}
confirmRead={this.confirmRead}
config={this.props.config}
handlerSysDetail={this.handlerSysDetail}
/>
);
break;
default:
messageTemplate = (
<Unknown
message={item}
confirmRead={this.confirmRead}
handlerUnknowDetail={this.handlerUnknowDetail}
/>
);
break;
}
return (
<List.Item className={itemCls} key={`${item.id}-${item.dateTime}` || i}>
{messageTemplate}
</List.Item>
);
}}
/>
<div className={`${prefixCls}-bottomBar`}>
{this.state.isLoading ? (
<>
<Spin /> 加载中...
</>
) : this.hasMore() ? (
<span>下拉加载更多</span>
) : (
<span style={{ fontSize: '12px', color: 'rgba(0, 0, 0, 0.6)' }}>
已经没有更多消息了
</span>
)}
</div>
</div>
);
}
}
NoticeList.contextType = ConfigProvider.ConfigContext;
export default NoticeList;