import React, { Component } from 'react';
import { Input, Select, Button, DatePicker, Form, Modal, Steps, Radio } from 'antd';
import { TableListItem } from '../data';
import { FormComponentProps } from 'antd/lib/form';

export type IFormValsType = {
  target?: string;
  template?: string;
  type?: string;
  time?: string;
  frequency?: string;
} & Partial<TableListItem>;

export interface UpdateFormProps extends FormComponentProps {
  handleUpdateModalVisible: (flag?: boolean, formVals?: IFormValsType) => void;
  handleUpdate: (values: IFormValsType) => void;
  updateModalVisible: boolean;
  values: Partial<TableListItem>;
}
const FormItem = Form.Item;
const { Step } = Steps;
const { TextArea } = Input;
const { Option } = Select;
const RadioGroup = Radio.Group;

export interface UpdateFormState {
  formVals: IFormValsType;
  currentStep: number;
}

class UpdateForm extends Component<UpdateFormProps, UpdateFormState> {
  static defaultProps = {
    handleUpdate: () => {},
    handleUpdateModalVisible: () => {},
    values: {},
  };
  formLayout = {
    labelCol: { span: 7 },
    wrapperCol: { span: 13 },
  };
  constructor(props: UpdateFormProps) {
    super(props);

    this.state = {
      formVals: {
        name: props.values.name,
        desc: props.values.desc,
        key: props.values.key,
        target: '0',
        template: '0',
        type: '1',
        time: '',
        frequency: 'month',
      },
      currentStep: 0,
    };
  }

  handleNext = (currentStep: number) => {
    const { form, handleUpdate } = this.props;
    const { formVals: oldValue } = this.state;
    form.validateFields((err, fieldsValue) => {
      if (err) return;
      const formVals = { ...oldValue, ...fieldsValue };
      this.setState(
        {
          formVals,
        },
        () => {
          if (currentStep < 2) {
            this.forward();
          } else {
            handleUpdate(formVals);
          }
        }
      );
    });
  };

  backward = () => {
    const { currentStep } = this.state;
    this.setState({
      currentStep: currentStep - 1,
    });
  };

  forward = () => {
    const { currentStep } = this.state;
    this.setState({
      currentStep: currentStep + 1,
    });
  };

  renderContent = (currentStep: number, formVals: IFormValsType) => {
    const { form } = this.props;
    if (currentStep === 1) {
      return [
        <FormItem key="target" {...this.formLayout} label="监控对象">
          {form.getFieldDecorator('target', {
            initialValue: formVals.target,
          })(
            <Select style={{ width: '100%' }}>
              <Option value="0">表一</Option>
              <Option value="1">表二</Option>
            </Select>
          )}
        </FormItem>,
        <FormItem key="template" {...this.formLayout} label="规则模板">
          {form.getFieldDecorator('template', {
            initialValue: formVals.template,
          })(
            <Select style={{ width: '100%' }}>
              <Option value="0">规则模板一</Option>
              <Option value="1">规则模板二</Option>
            </Select>
          )}
        </FormItem>,
        <FormItem key="type" {...this.formLayout} label="规则类型">
          {form.getFieldDecorator('type', {
            initialValue: formVals.type,
          })(
            <RadioGroup>
              <Radio value="0">强</Radio>
              <Radio value="1">弱</Radio>
            </RadioGroup>
          )}
        </FormItem>,
      ];
    }
    if (currentStep === 2) {
      return [
        <FormItem key="time" {...this.formLayout} label="开始时间">
          {form.getFieldDecorator('time', {
            rules: [{ required: true, message: '请选择开始时间！' }],
          })(
            <DatePicker
              style={{ width: '100%' }}
              showTime
              format="YYYY-MM-DD HH:mm:ss"
              placeholder="选择开始时间"
            />
          )}
        </FormItem>,
        <FormItem key="frequency" {...this.formLayout} label="调度周期">
          {form.getFieldDecorator('frequency', {
            initialValue: formVals.frequency,
          })(
            <Select style={{ width: '100%' }}>
              <Option value="month">月</Option>
              <Option value="week">周</Option>
            </Select>
          )}
        </FormItem>,
      ];
    }
    return [
      <FormItem key="name" {...this.formLayout} label="规则名称">
        {form.getFieldDecorator('name', {
          rules: [{ required: true, message: '请输入规则名称！' }],
          initialValue: formVals.name,
        })(<Input placeholder="请输入" />)}
      </FormItem>,
      <FormItem key="desc" {...this.formLayout} label="规则描述">
        {form.getFieldDecorator('desc', {
          rules: [{ required: true, message: '请输入至少五个字符的规则描述！', min: 5 }],
          initialValue: formVals.desc,
        })(<TextArea rows={4} placeholder="请输入至少五个字符" />)}
      </FormItem>,
    ];
  };

  renderFooter = (currentStep: number) => {
    const { handleUpdateModalVisible, values } = this.props;
    if (currentStep === 1) {
      return [
        <Button key="back" style={{ float: 'left' }} onClick={this.backward}>
          上一步
        </Button>,
        <Button key="cancel" onClick={() => handleUpdateModalVisible(false, values)}>
          取消
        </Button>,
        <Button key="forward" type="primary" onClick={() => this.handleNext(currentStep)}>
          下一步
        </Button>,
      ];
    }
    if (currentStep === 2) {
      return [
        <Button key="back" style={{ float: 'left' }} onClick={this.backward}>
          上一步
        </Button>,
        <Button key="cancel" onClick={() => handleUpdateModalVisible(false, values)}>
          取消
        </Button>,
        <Button key="submit" type="primary" onClick={() => this.handleNext(currentStep)}>
          完成
        </Button>,
      ];
    }
    return [
      <Button key="cancel" onClick={() => handleUpdateModalVisible(false, values)}>
        取消
      </Button>,
      <Button key="forward" type="primary" onClick={() => this.handleNext(currentStep)}>
        下一步
      </Button>,
    ];
  };

  render() {
    const { updateModalVisible, handleUpdateModalVisible, values } = this.props;
    const { currentStep, formVals } = this.state;

    return (
      <Modal
        width={640}
        bodyStyle={{ padding: '32px 40px 48px' }}
        destroyOnClose
        title="规则配置"
        visible={updateModalVisible}
        footer={this.renderFooter(currentStep)}
        onCancel={() => handleUpdateModalVisible(false, values)}
        afterClose={() => handleUpdateModalVisible()}
      >
        <Steps style={{ marginBottom: 28 }} size="small" current={currentStep}>
          <Step title="基本信息" />
          <Step title="配置规则属性" />
          <Step title="设定调度周期" />
        </Steps>
        {this.renderContent(currentStep, formVals)}
      </Modal>
    );
  }
}

export default UpdateForm;