import React, { Component } from 'react';
import pathToRegexp from 'path-to-regexp';
import { connect } from 'dva';
import { routerRedux } from 'dva/router';
import {
  Form, Modal, Card, Button, Input, Switch, Select, Row, Col,
} from 'antd';
import {
  renderStatus, statusToBool, boolToStatus, genAbsolutePicUrl,
} from '../../../utils/utils';
import { Hotax } from '../../../utils/config';
import AXDragSortTable from '../../../components/AXDragSortTable';
import Selector from '../../../components/AXTableSelector/Selector';
import FooterToolbar from '../../../components/FooterToolbar';
import styles from './CourseCreate.less';

const fieldLabels = {
  code: '课程编号',
  title: '课程标题',
  subTitle: '课程副标题',
  name: '课程全称',
  breadCrumb: '顶部导航名',
  merchant: '内容提供商',
  digest: '课程概要',
  detail: '课程详情',
  coverUrl: '课程封面图',
  bgUrl: '课程背景图',
  status: '课程状态',
};
const formItemLayout = {
  labelCol: {
    xs: { span: 24 },
    sm: { span: 3 },
  },
  wrapperCol: {
    xs: { span: 24 },
    sm: { span: 14 },
    md: { span: 12 },
  },
};

@connect(({ loading, product, lesson, resource, merchant }) => ({
  lesson,
  product,
  resource,
  merchant,
  lLoading: loading.models.lesson,
  pLoading: loading.models.product,
  rLoading: loading.models.resource,
  submitting: loading.models.product,
}))
@Form.create()
export default class CourseItemCreatePage extends Component {
  state = {
    bgSelectorDestroy: true,
    coverSelectorDestroy: true,
    lessonSelectorDestroy: true,
    supportSelectorDestroy: true,
  };
  componentWillMount() {
    const match = pathToRegexp('/product/course/create').exec(this.props.location.pathname);
    if (match) {
      this.cleanPageState();
    }
  }
  componentDidMount() {
    const matchId = this.isEdit();
    if (matchId) {
      this.props.dispatch({
        type: 'product/fetchProductItem',
        payload: { pid: matchId },
      });
    }
    this.props.dispatch({
      type: 'merchant/fetchMerchantList',
      payload: { pageSize: 1000 }, // TODO 以后商户多了需要改写交互样式
    });
  }
  isEdit = () => {
    const { location } = this.props;
    const match = pathToRegexp('/product/course/edit/:id').exec(location.pathname);
    if (match) {
      return match[1];
    }
    return false;
  };
  cleanPageState = () => {
    this.props.dispatch({
      type: 'product/cleanItemState',
      payload: {},
    });
  };
  selectorDataFetcher = (name, params) => {
    switch (name) {
      case 'cover':
        this.props.dispatch({
          type: 'resource/fetchImageList',
          payload: params,
        });
        break;
      case 'bg':
        this.props.dispatch({
          type: 'resource/fetchImageList',
          payload: params,
        });
        break;
      case 'lesson':
        this.props.dispatch({
          type: 'lesson/fetchLessonList',
          payload: params,
        });
        break;
      case 'support':
        this.props.dispatch({
          type: 'product/fetchSupportList',
          payload: params,
        });
        break;
      default:
        break;
    }
  };
  currentItemFormatter = (name, rows) => {
    let payload;
    switch (name) {
      case 'cover':
        payload = { coverUrl: rows[0].path };
        break;
      case 'bg':
        payload = { bgUrl: rows[0].path };
        break;
      case 'lesson':
        payload = { subItemList: rows };
        break;
      case 'support':
        payload = { supportList: rows };
        break;
      default:
        break;
    }
    return payload;
  };
  handleSelectorModalShow = (name) => {
    this.setState({
      [`${name}SelectorDestroy`]: false,
    });
    this.selectorDataFetcher(name);
  };
  handleSelectorChange = (name, params) => {
    this.selectorDataFetcher(name, params);
  };
  handleSelectorFinish = (name, rows) => {
    this.setState({
      [`${name}SelectorDestroy`]: true,
    });
    const payload = this.currentItemFormatter(name, rows);
    this.props.dispatch({
      payload,
      type: 'product/fixCurrentItem',
    });
  };
  handleDragSortTableChange = (name, rows) => {
    const payload = this.currentItemFormatter(name, rows);
    this.props.dispatch({
      payload,
      type: 'product/fixCurrentItem',
    });
  };
  handleSelectorCancel = (name) => {
    this.setState({
      [`${name}SelectorDestroy`]: true,
    });
  };
  handlePageBack = () => {
    this.props.dispatch(routerRedux.push({
      pathname: '/product/course/list',
      state: this.props.location.state,
    }));
  };
  handlePageSubmit = (e) => {
    e.preventDefault();
    this.props.form.validateFieldsAndScroll((err, values) => {
      if (!err) {
        // 提取表单字段
        const { title, subTitle, name, status, ...rest } = values;
        const newName = `${title}_${subTitle}`;
        const newValues = { title, subTitle, name: newName, status: boolToStatus(status), ...rest };

        const { product } = this.props;
        const { currentItem } = product;
        const { bgUrl, coverUrl, subItemList, supportList } = currentItem;

        // 构造subList,supportIdList
        let subList;
        let supportIdList;
        if (subItemList) {
          subList = subItemList.map(
            item => ({ id: item.id, type: Hotax.PRODUCT_LESSON })
          );
        }
        if (supportList) {
          supportIdList = supportList.map(item => item.id);
        }

        const matchId = this.isEdit();
        if (matchId) {
          const params = {
            bgUrl,
            coverUrl,
            id: matchId,
            subItemList: subList,
            supportList: supportIdList,
            ...newValues,
          };
          this.props.dispatch({
            type: 'product/updateCourseItem',
            payload: params,
            states: this.props.location.state,
          });
        } else {
          const params = {
            bgUrl,
            coverUrl,
            subItemList: subList,
            supportList: supportIdList,
            ...newValues,
          };
          this.props.dispatch({
            type: 'product/createCourseItem',
            payload: params,
            states: this.props.location.state,
          });
        }
      }
    });
  };

  render() {
    const {
      form, submitting, rLoading, lLoading, pLoading, lesson, product, resource, merchant,
    } = this.props;
    const {
      lessonSelectorDestroy, supportSelectorDestroy, coverSelectorDestroy, bgSelectorDestroy,
    } = this.state;
    const { currentItem } = product;
    const {
      code, title, subTitle, name, digest, detail, status, coverUrl, bgUrl, cpId,
      breadCrumb, subItemList = [], supportList = [],
    } = currentItem;
    const { getFieldDecorator } = form;

    const lessonColumns = [{
      title: '课编号',
      dataIndex: 'code',
      key: 1,
      width: '20%',
      render: (text, record) => (
        <a
          className="a-link"
          target="_blank"
          rel="noopener noreferrer"
          href={`/product/lesson/edit/${record.id}`}
        >
          {text}
        </a>
      ),
    }, {
      title: '课名称',
      dataIndex: 'title',
      key: 2,
      width: '30%',
      render: (text, record) => (
        <a
          className="a-link"
          target="_blank"
          rel="noopener noreferrer"
          href={`/product/lesson/edit/${record.id}`}
        >
          {text}
        </a>
      ),
    }, {
      title: '状态',
      dataIndex: 'status',
      key: 3,
      render: text => renderStatus(text),
    }];
    const supportColumns = [{
      title: '配套编号',
      dataIndex: 'code',
      key: 1,
      width: '20%',
      render: (text, record) => (
        <a
          className="a-link"
          target="_blank"
          rel="noopener noreferrer"
          href={`/product/support/edit/${record.id}`}
        >
          {text}
        </a>
      ),
    }, {
      title: '配套名称',
      dataIndex: 'name',
      key: 2,
      width: '30%',
      render: (text, record) => (
        <a
          className="a-link"
          target="_blank"
          rel="noopener noreferrer"
          href={`/product/support/edit/${record.id}`}
        >
          {text}
        </a>
      ),
    }, {
      title: '配套状态',
      dataIndex: 'status',
      key: 3,
      render: text => renderStatus(text),
    }];

    const getMerchants = () => {
      const { list } = merchant;
      return list.map(item => ({
        text: item.name,
        key: item.id,
      }));
    };

    const getResourceModal = (isCover) => {
      return (
        <Modal
          width={1100}
          footer={null}
          visible
          title="图片资源"
          maskClosable={false}
          onCancel={() => this.handleSelectorCancel(isCover ? 'cover' : 'bg')}
        >
          <Selector
            multiple={false}
            loading={rLoading}
            selectorName="PictureSingle"
            list={resource.list}
            pageNo={resource.pageNo}
            pageSize={resource.pageSize}
            totalSize={resource.totalSize}
            onCancel={() => this.handleSelectorCancel(isCover ? 'cover' : 'bg')}
            onChange={data => this.handleSelectorChange(isCover ? 'cover' : 'bg', data)}
            onFinish={rows => this.handleSelectorFinish(isCover ? 'cover' : 'bg', rows)}
          />
        </Modal>
      );
    };
    const getLessonModal = () => {
      return (
        <Modal
          width={1100}
          footer={null}
          visible
          title="课资源"
          maskClosable={false}
          onCancel={() => this.handleSelectorCancel('lesson')}
        >
          <Selector
            multiple
            loading={lLoading}
            selectorName="Lesson"
            selectedRows={subItemList}
            list={lesson.list}
            pageNo={lesson.pageNo}
            pageSize={lesson.pageSize}
            totalSize={lesson.totalSize}
            onCancel={() => this.handleSelectorCancel('lesson')}
            onChange={data => this.handleSelectorChange('lesson', data)}
            onFinish={rows => this.handleSelectorFinish('lesson', rows)}
          />
        </Modal>
      );
    };
    const getSupportModal = () => {
      return (
        <Modal
          width={1100}
          footer={null}
          visible
          title="配套资源"
          maskClosable={false}
          onCancel={() => this.handleSelectorCancel('support')}
        >
          <Selector
            multiple
            loading={pLoading}
            selectorName="Support"
            selectedRows={supportList}
            list={product.list}
            pageNo={product.pageNo}
            pageSize={product.pageSize}
            totalSize={product.totalSize}
            onCancel={() => this.handleSelectorCancel('support')}
            onChange={data => this.handleSelectorChange('support', data)}
            onFinish={rows => this.handleSelectorFinish('support', rows)}
          />
        </Modal>
      );
    };
    const renderLessonCardName = () => {
      return (
        <Button
          type="primary"
          onClick={() => this.handleSelectorModalShow('lesson')}
        >课列表
        </Button>
      );
    };
    const renderSupportCardName = () => {
      return (
        <Button
          type="primary"
          onClick={() => this.handleSelectorModalShow('support')}
        >配套列表
        </Button>
      );
    };
    const renderCoverCardName = () => {
      return (
        <div className={styles.cardName}>
          <span>
            <a onClick={() => this.handleSelectorModalShow('cover')}>更换封面</a>
          </span>
        </div>
      );
    };
    const renderbgCardName = () => {
      return (
        <div className={styles.cardName}>
          <span>
            <a onClick={() => this.handleSelectorModalShow('bg')}>更换背景</a>
          </span>
        </div>
      );
    };
    return (
      <div>
        {/* 基础信息Card */}
        <Card title="基础信息" style={{ marginBottom: 16 }}>
          <Form>
            <Form.Item hasFeedback label={fieldLabels.code} {...formItemLayout}>
              {getFieldDecorator('code', {
                rules: [
                  {
                    required: true, message: '请填写课程编号',
                  }, {
                    pattern: /^[a-zA-Z0-9|-]+$/g, message: '编号包含非法字符',
                  },
                ],
                initialValue: code,
              })(
                <Input placeholder="请输入" />
              )}
            </Form.Item>
            {this.isEdit() && (
              <Form.Item label={fieldLabels.name} {...formItemLayout}>
                {getFieldDecorator('name', {
                  initialValue: name,
                })(
                  <Input placeholder="根据标题及副标题自动生成完整名称,不必填写" disabled />
                )}
              </Form.Item>
            )}
            <Form.Item hasFeedback label={fieldLabels.title} {...formItemLayout}>
              {getFieldDecorator('title', {
                rules: [{ required: true, message: '请填写课程标题' }],
                initialValue: title,
              })(
                <Input placeholder="请输入" />
              )}
            </Form.Item>
            <Form.Item hasFeedback label={fieldLabels.subTitle} {...formItemLayout}>
              {getFieldDecorator('subTitle', {
                rules: [{ required: true, message: '请填写课程副标题' }],
                initialValue: subTitle,
              })(
                <Input placeholder="请输入" />
              )}
            </Form.Item>
            <Form.Item hasFeedback label={fieldLabels.breadCrumb} {...formItemLayout}>
              {getFieldDecorator('breadCrumb', {
                rules: [{ required: true, message: '请填写顶部导航名' }],
                initialValue: breadCrumb,
              })(
                <Input placeholder="请输入" />
              )}
            </Form.Item>
            <Form.Item hasFeedback label={fieldLabels.merchant} {...formItemLayout}>
              {getFieldDecorator('cpId', {
                rules: [{ required: true, message: '请选择供应商' }],
                initialValue: cpId,
              })(
                <Select placeholder="请选择">
                  {
                    getMerchants().map(item => (
                      <Select.Option key={item.key} value={item.key}>
                        {item.text}
                      </Select.Option>
                    ))
                  }
                </Select>
              )}
            </Form.Item>
            <Form.Item label={fieldLabels.digest} {...formItemLayout}>
              {getFieldDecorator('digest', {
                initialValue: digest,
              })(
                <Input.TextArea rows={4} placeholder="请输入" />
              )}
            </Form.Item>
            <Form.Item label={fieldLabels.detail} {...formItemLayout}>
              {getFieldDecorator('detail', {
                initialValue: detail,
              })(
                <Input.TextArea rows={6} placeholder="请输入" />
              )}
            </Form.Item>
            <Form.Item label={fieldLabels.status} {...formItemLayout}>
              {getFieldDecorator('status', {
                valuePropName: 'checked',
                initialValue: statusToBool(status),
              })(
                <Switch
                  checkedChildren="正常"
                  unCheckedChildren="删除"
                />
              )}
            </Form.Item>
          </Form>
        </Card>
        {/* 封面及背景图选择Card */}
        <Card title="封面|背景" style={{ marginBottom: 16 }}>
          <Row gutter={16}>
            <Col
              md={{ span: 9, offset: 1 }}
              lg={{ span: 7, offset: 2 }}
              xl={{ span: 5, offset: 4 }}
              xxl={{ span: 3, offset: 6 }}
            >
              <Card
                hoverable
                title={renderCoverCardName()}
              >
                {
                  coverUrl && (
                    <div className={styles.cover}>
                      <img src={genAbsolutePicUrl(coverUrl)} alt="" />
                    </div>
                  )
                }
                {!coverSelectorDestroy && getResourceModal(true)}
              </Card>
            </Col>
            <Col
              md={{ span: 9, offset: 2 }}
              lg={{ span: 7, offset: 4 }}
              xl={{ span: 5, offset: 4 }}
              xxl={{ span: 3, offset: 5 }}
            >
              <Card
                hoverable
                title={renderbgCardName()}
              >
                {
                  bgUrl ? (
                    <div className={styles.background}>
                      <img src={genAbsolutePicUrl(bgUrl)} alt="" />
                    </div>
                  ) : null
                }
                {!bgSelectorDestroy && getResourceModal(false)}
              </Card>
            </Col>
          </Row>
        </Card>
        {/* 课列表选择Card */}
        <Card title={renderLessonCardName()} style={{ marginBottom: 16 }}>
          <AXDragSortTable
            columns={lessonColumns}
            data={subItemList}
            onChange={rows => this.handleDragSortTableChange('lesson', rows)}
          />
          {!lessonSelectorDestroy && getLessonModal()}
        </Card>
        {/* 周边配套选择Card */}
        <Card title={renderSupportCardName()} style={{ marginBottom: 70 }}>
          <AXDragSortTable
            columns={supportColumns}
            data={supportList}
            onChange={rows => this.handleDragSortTableChange('support', rows)}
          />
          {!supportSelectorDestroy && getSupportModal()}
        </Card>
        <FooterToolbar style={{ width: '100%' }}>
          <Button
            onClick={this.handlePageBack}
            style={{ marginRight: 10 }}
          >取消
          </Button>
          <Button
            type="primary"
            loading={submitting}
            onClick={this.handlePageSubmit}
          >提交
          </Button>
        </FooterToolbar>
      </div>
    );
  }
}