import React, { useState } from 'react';
import { Table, Input, InputNumber, Popconfirm, Form, Button } from 'antd';
import { Link } from 'umi';

interface Item {//定义不向外暴露的接口，用来保存表单参数
  key: string;
  name: string;
  age: number;
  address: string;
}

const originData: Item[] = []; //新建数组，遍历出表格数据
for (let i = 0; i < 100; i++) {
  originData.push({
    key: i.toString(),
    name: `Edrward ${i}`,
    age: 32,
    address: `London Park no. ${i}`,
  });
}
interface EditableCellProps extends React.HTMLAttributes<HTMLElement> {//表格参数
  editing: boolean;
  dataIndex: string;
  title: any;
  inputType: 'number' | 'text';
  record: Item;
  index: number;
  children: React.ReactNode;
}

const EditableCell: React.FC<EditableCellProps> = ({
  editing,
  dataIndex,
  title,
  inputType,
  record,
  index,
  children,
  ...restProps
}) => {
  const inputNode = inputType === 'number' ? <InputNumber /> : <Input />;

  return (
    <td {...restProps}>
      {editing ? (
        <Form.Item
          name={dataIndex}
          style={{ margin: 0 }}
          rules={[
            {
              required: true,
              message: `Please Input ${title}!`,
            },
          ]}
        >
          {inputNode}
        </Form.Item>
      ) : (
        children
      )}
    </td>
  );
};

const EditableTable = () => {
  const [form] = Form.useForm();
  const [data, setData] = useState(originData);
  const [editingKey, setEditingKey] = useState('');

  const isEditing = (record: Item) => record.key === editingKey;

  const edit = (record: Item) => {
    form.setFieldsValue({ ...record });//改变表单的值
    setEditingKey(record.key);
  };

  const cancel = () => {
    setEditingKey('');
  };

  const save = async (key: React.Key) => {
    try {
      const row = (await form.validateFields()) as Item;

      const newData = [...data];
      const index = newData.findIndex(item => key === item.key);
      if (index > -1) {
        const item = newData[index];
        newData.splice(index, 1, {
          ...item,
          ...row,
        });
        setData(newData);
        setEditingKey('');
      } else {
        newData.push(row);
        setData(newData);
        setEditingKey('');
      }
    } catch (errInfo) {
    }
  };

  const columns = [
    {
      title: 'name',
      dataIndex: 'name',
      width: '25%',
      editable: true,
    },
    {
      title: 'age',
      dataIndex: 'age',
      width: '15%',
      editable: true,
    },
    {
      title: 'address',
      dataIndex: 'address',
      width: '40%',
      editable: true,
    },
    {
      title: 'operation',
      dataIndex: 'operation',
      render: (_: any, record: Item) => {
        const editable = isEditing(record);
        return editable ? (
          <span>
            <a href="javascript:;" onClick={() => save(record.key)} style={{ marginRight: 8 }}>
              Save
            </a>
            <Popconfirm title="Sure to cancel?" onConfirm={cancel}>
              <a>Cancel</a>
            </Popconfirm>
          </span>
        ) : (
          <a aria-disabled={editingKey !== ''} onClick={() => edit(record)}>
            Edit
          </a>
        );
      },
    },
  ];

  const mergedColumns = columns.map(col => {
    if (!col.editable) {
      return col;
    }
    return {
      ...col,
      onCell: (record: Item) => ({
        record,
        inputType: col.dataIndex === 'age' ? 'number' : 'text',
        dataIndex: col.dataIndex,
        title: col.title,
        editing: isEditing(record),
      }),
    };
  });

  return (
    <Form form={form} component={false}>
        <Button><Link to="../newList">跳转回newList</Link></Button>
      <Table
        components={{
          body: {
            cell: EditableCell,
          },
        }}
        bordered
        dataSource={data}
        columns={mergedColumns}
        rowClassName="editable-row"
        pagination={{
          onChange: cancel,
        }}
      />
    </Form>
  );
};
export default EditableTable