import React, { Component } from 'react';
import { connect } from 'dva';
import { routerRedux } from 'dva/router';
import queryString from 'query-string';
import {
  Tooltip,
  Popover,
  Modal,
  Card,
  List,
  Form,
  Table,
  Button,
  Input,
  InputNumber,
  Select,
  Icon,
} from 'antd';

import PageHeaderLayout from '../../../layouts/PageHeaderLayout';
import FooterToolbar from '../../../components/FooterToolbar';
import TerminalSelectModal from './terminal';
import MerchantProductSelectModal from './product';
import { productType, pageSize, Codes } from '../../../utils/config';
import styles from './index.less';

@Form.create()
@connect(state => ({
  terminal: state.terminal,
  orderDetail: state.orderDetail,
  mproduct: state.mproduct,
}))
export default class CreateOrder extends Component {
  state = {
    userInfo: {}, //记录终端用户信息
    products: [], //记录选择的产品
    tableDatas: [], //记录选择的商品
  };

  // 终端选择弹框,显示 -> 加载数据
  handleTerminalSelectBtnClick = () => {
    this.props.dispatch({ type: 'orderDetail/showTerminalModal' });
    this.props.dispatch({
      type: 'terminal/query',
      payload: {
        pageNo: 1,
        pageSize,
      }
    });
  }

  // 选择终端
  handleTerminalModalOk = (record) => {
    this.setState({
      userInfo: {
        uid: record.id,
        userCode: record.code,
        userName: record.name,
        campusName: record.campusName,
        merchantName: record.merchantName,
        merchantId: record.merchantId,
        contactName: record.contactName,
        mobile: record.mobile,
        address: record.address,
      }
    });
    this.props.dispatch({ type: 'orderDetail/hideTerminalModal' });
  }

  handleTerminalModalCancel = () => {
    this.props.dispatch({ type: 'orderDetail/hideTerminalModal' });
  }

  handleTerminalModalSearch = (data) => {
    const newData = { ...data };
    if (newData.keyword) {
      newData[newData.field] = newData.keyword;
    }
    delete newData.field;
    delete newData.keyword;
    this.props.dispatch({
      type: `terminal/query`,
      payload: { ...newData, pageNo: 1, pageSize },
    });
  }

  handleTerminalModalTableChange = (pagination, filterArgs, filters) => {
    const newFilters = { ...filters };
    if (newFilters.keyword) {
      newFilters[newFilters.field] = newFilters.keyword;
    }
    delete newFilters.field;
    delete newFilters.keyword;
    const getValue = obj => Object.keys(obj).map(key => obj[key]).join(',');
    const tableFilters = Object.keys(filterArgs).reduce((obj, key) => {
      const newObj = { ...obj };
      newObj[key] = getValue(filterArgs[key]);
      return newObj;
    }, {});

    const data = { ...newFilters, ...tableFilters, pageNo: pagination.current, pageSize: pagination.pageSize };
    Object.keys(data).map(key => data[key] ? null : delete data[key]);
    this.props.dispatch({ type: `terminal/query`, payload: data });
  }

  // 产品选择弹框
  handleProductSelectBtnClick = () => {
    const { userInfo } = this.state;
    const { merchantId } = userInfo;
    this.props.dispatch({ type: 'orderDetail/showProductModal' });
    this.props.dispatch({
      type: 'mproduct/query',
      payload: {
        pageNo: 1,
        pageSize,
        merchantId,
      },
    });
  }

  handleProductModalSearch = (data) => {
    const { userInfo } = this.state;
    const { merchantId } = userInfo;
    const newData = { ...data };
    if (newData.keyword) {
      newData[newData.field] = newData.keyword;
    }
    delete newData.field;
    delete newData.keyword;
    this.props.dispatch({
      type: 'mproduct/query',
      payload: { ...newData, merchantId, pageNo: 1, pageSize },
    });
  }

  handleProductModalTableChange = (pagination, filterArgs, filters) => {
    const { userInfo } = this.state;
    const { merchantId } = userInfo;
    const newFilters = { ...filters };
    if (newFilters.keyword) {
      newFilters[newFilters.field] = newFilters.keyword;
    }
    delete newFilters.field;
    delete newFilters.keyword;
    const getValue = obj => Object.keys(obj).map(key => obj[key]).join(',');
    const tableFilters = Object.keys(filterArgs).reduce((obj, key) => {
      const newObj = { ...obj };
      newObj[key] = getValue(filterArgs[key]);
      return newObj;
    }, {});

    const data = { ...newFilters, ...tableFilters, pageNo: pagination.current, pageSize: pagination.pageSize, merchantId };
    Object.keys(data).map(key => data[key] ? null : delete data[key]);
    this.props.dispatch({ type: 'mporduct/query', payload: data });
  }

  // 选择产品
  handleProductModalOk = (data) => {
    const formatedData = this.tableDataConventer(data);
    this.setState({
      products: data || [],
      tableDatas: formatedData,
    });
    this.props.dispatch({ type: 'orderDetail/hideProductModal' });
  }

  handleProductModalCancel = () => {
    this.props.dispatch({ type: 'orderDetail/hideProductModal' });
  }

  // 对待选的产品进行过滤，如果没有goods则不可选
  productListFilter = (list) => {
    const newList = [...list];
    newList.map(item =>
      (!item.goods || item.goods.length == 0) ? item.selectable = true : item.selectable = false);
    return newList;
  }

  handleListItemDel = (record) => {
    const { products, tableDatas } = this.state;
    Modal.confirm({
      title: '确定从清单中删除此商品?',
      cancelText: '取消',
      okText: '确认',
      onOk: () => {
        const newProducts = products.filter(item => item.id !== record.key);
        const newTableDatas = tableDatas.filter(item => item.key.indexOf(record.key) == -1);
        this.setState({
          products: newProducts,
          tableDatas: newTableDatas,
        });
      },
    });
  }

  PKGPriceCalculator = (item, tableDatas) => {
    // 根据key找到该课程包内的所有配套
    const parentId = item.key;
    const subSupports = tableDatas.filter(row =>
      row.key.indexOf(`${parentId}[sub]`) !== -1 && row.type == Codes.CODE_SUPPORT
    );
    // 计算该课程包的价格
    let sumSupportsPrice = 0;
    subSupports.map(one => {
      sumSupportsPrice += one.price1 * one.quantity;
    });
    item.rowSum = item.quantity * item.price3 + sumSupportsPrice;
  }

  handleInputNumberChange = (record, value) => {
    const { tableDatas } = this.state;
    const newTableDatas = [...tableDatas];
    newTableDatas.map(item => {
      if (item.key == record.key) {
        item.quantity = value;
        if (record.type == Codes.CODE_PACKAGE) {
          this.PKGPriceCalculator(item, newTableDatas);
        } else if (record.type == Codes.CODE_SUPPORT && item.parent) {
          const parentId = item.key.split('[sub]')[0];
          newTableDatas.map(item => item.key == parentId ? this.PKGPriceCalculator(item, newTableDatas) : null);
        } else {
          item.rowSum = item.quantity * item.price3;
        }
      }
    });
    this.setState({ tableDatas: newTableDatas });
  }

  handleSelectChange = (record, value) => {
    const { tableDatas } = this.state;
    const newTableDatas = [...tableDatas];
    newTableDatas.map(item => {
      if (item.key == record.key) {
        const match = item.options.filter(one => one.goodsId == value)[0];
        item.price1 = match.price1;
        item.price2 = match.price2;
        item.price3 = match.price3;
        item.chargeUnit = match.chargeUnit;
        item.goodsId = value;
        if (record.type == Codes.CODE_PACKAGE) {
          this.PKGPriceCalculator(item, newTableDatas);
        } else if (record.type == Codes.CODE_SUPPORT && item.parent) {
          const parentId = item.key.split('[sub]')[0];
          newTableDatas.map(item => item.key == parentId ? this.PKGPriceCalculator(item, newTableDatas) : null);
        } else {
          item.rowSum = item.quantity * item.price3;
        }
      }
    });
    this.setState({ tableDatas: newTableDatas });
  }

  handlePageCancel = () => {
    const { orderDetail, dispatch } = this.props;
    const { filters } = orderDetail;
    dispatch(routerRedux.push({
      pathname: '/order',
      search: queryString.stringify(filters),
    }));
  }

  handlePageSubmit = () => {
    const { form, dispatch, orderDetail } = this.props;
    const { userInfo, tableDatas } = this.state;
    const { getFieldsValue, validateFields } = form;
    const { filters } = orderDetail;
    const { uid } = userInfo;
    validateFields((errors) => {
      if (errors) return;
      const postData = getFieldsValue();
      const detailList = [];
      tableDatas.map(item => {
        const { goodsId, quantity } = item;
        if (!item.parent || item.type == Codes.CODE_SUPPORT) {
          detailList.push({ goodsId, quantity });
        }
      });
      postData.uid = uid;
      postData.goods = detailList;
      postData.adjustPrice = 0;
      postData.orderStatus = Codes.CODE_UNPAID,
      dispatch({
        type: 'orderDetail/create',
        payload: postData,
        callback: () => {
          dispatch(routerRedux.push({
            pathname: '/order',
            search: queryString.stringify(filters),
          }));
        }
      });
    });
  }

  /**
   * @desc 对选择的产品列表进行加工，以适应table的展示样式，并进行数量及价格调整
   * @param {[json]} data
   * @return {[json]}
   */
  tableDataConventer = (data) => {
    let rowSort = 1;
    const formatedData = new Array();
    const rowDataMaker = (item) => {
      const first = item.goods[0];
      return {
        name: item.name,
        code: item.code,
        type: item.type,
        goodsId: first.id,
        price1: first.cpPrice,
        price2: first.merchantPrice,
        price3: first.terminalPrice,
        rowSum: first.terminalPrice,
        chargeUnit: first.chargeUnit,
      };
    };
    data.map(item => {
      if (!item.goods || item.goods.length == 0) return;
      if (item.type == Codes.CODE_COURSE) {
        const newObj = rowDataMaker(item);
        newObj.sumRows = 1;
        newObj.quantity = 1;
        newObj.key = item.id; // table row, type course, key is id
        newObj.options = item.goods.map(
          one => ({
            goodsId: one.id,
            price1: one.cpPrice,
            price2: one.merchantPrice,
            price3: one.terminalPrice,
            chargeUnit: one.chargeUnit,
          })
        );
        newObj.rowSort = rowSort;
        rowSort += 1;
        formatedData.push(newObj);
      } else if (item.type == Codes.CODE_SUPPORT) {
        const newObj = rowDataMaker(item);
        newObj.sumRows = 1;
        newObj.quantity = 1;
        newObj.key = item.id; // table row, type support, key is id
        newObj.rowSort = rowSort;
        rowSort += 1;
        formatedData.push(newObj);
      } else if (item.type == Codes.CODE_PACKAGE) {
        const products = item.products;
        const specials = item.specials;
        // 产品包为一行
        const newObj = rowDataMaker(item);
        newObj.sumRows = products ? products.length + 1 : 1;
        newObj.quantity = 1;
        newObj.key = item.id; // table row, type package, key is id
        newObj.options = item.goods.map(
          one => ({
            goodsId: one.id,
            price1: one.cpPrice,
            price2: one.merchantPrice,
            price3: one.terminalPrice,
            chargeUnit: one.chargeUnit,
          })
        );
        newObj.rowSort = rowSort;
        rowSort += 1;
        formatedData.push(newObj);
        // 产品包中products每一项为一行
        products.map(subItem => {
          const matchGoods = specials.filter(specialsItem => specialsItem.pid == subItem.pid)[0];
          const newObj = new Object();
          newObj.sumRows = 0;
          newObj.name = subItem.name;
          newObj.code = subItem.code;
          newObj.type = subItem.type;
          newObj.key = `${item.id}[sub]${subItem.id}`; // table row, type package subPro, key is pkgId[sub]pid
          // 产品包中的配套 - 显示价格及支持数量调整
          if (subItem.type == Codes.CODE_SUPPORT) {
            newObj.parent = true;
            newObj.goodsId = matchGoods.id;
            newObj.chargeUnit = '件';
            newObj.price1 = matchGoods.cpPrice;
            newObj.price2 = '-';
            newObj.price3 = '-';
            newObj.quantity = 0;
          // 产品包中的课程 - 不显示价格并且不支持数量调整
          } else if (subItem.type == Codes.CODE_COURSE) {
            newObj.parent = true;
            newObj.chargeUnit = '-';
            newObj.price1 = '-';
            newObj.price2 = '-';
            newObj.price3 = '-';
            newObj.quantity = '-';
          }
          formatedData.push(newObj);
        });
      }
    });
    return formatedData;
  }

  render() {
    const { orderDetail, terminal, mproduct, form } = this.props;
    const { userInfo, products, tableDatas } = this.state;
    const { getFieldDecorator } = form;
    const { terminalModalShow, productModalShow } = orderDetail;
    const listData = tableDatas;
    const productList = this.productListFilter(mproduct.list);

    const formItemLayout = {
      labelCol: {
        xs: { span: 24 },
        sm: { span: 2 },
      },
      wrapperCol: {
        xs: { span: 24 },
        sm: { span: 12 },
        md: { span: 22 },
      },
    };

    const columns = [{
      title: '序号',
      dataIndex: 'rowSort',
      width: '6%',
      key: 0,
      render: (text, row) => ({ children: text, props: { rowSpan: row.sumRows } }),
    },{
      title: '编号',
      dataIndex: 'code',
      key: 1,
      width: '10%',
    },{
      title: '名称',
      dataIndex: 'name',
      key: 2,
      width: '10%',
    },{
      title: '类型',
      dataIndex: 'type',
      key: 3,
      render: (text) => productType[text],
      width: '10%',
    },{
      title: '价格类型',
      dataIndex: 'goods',
      key: 4,
      render: (text, row) => {
        // 既不是单独课程也不是课程包里的配套
        if (!row.options && row.type !== Codes.CODE_SUPPORT) {
          return '-';
        // 单独的课程
        } else if (row.options) {
          return (
            <Select style={{ width: '100%' }} value={row.goodsId} onChange={(value) => this.handleSelectChange(row, value)}>
              {row.options.map(item => <Select.Option key={item.goodsId} value={item.goodsId}>{`¥${item.price3} / ${item.chargeUnit}`}</Select.Option>)}
            </Select>
          );
        // 课程包里的配套(显示价格和数量)
        } else if (!row.options && row.type == Codes.CODE_SUPPORT) {
          return `¥${row.price1} / ${row.chargeUnit}`;
        }
      },
      width: '13%',
    },{
      title: '供应商售价(¥)',
      dataIndex: 'price1',
      key: 5,
      width: '10%',
    },{
      title: '领教售价(¥)',
      dataIndex: 'price2',
      key: 6,
      width: '10%',
    },{
      title: '渠道售价(¥)',
      dataIndex: 'price3',
      key: 7,
      width: '10%',
    },{
      title: '数量',
      dataIndex: 'quantity',
      key: 8,
      render: (text, row) => {
        // 课程
        if (row.type == Codes.CODE_COURSE && !row.parent) {
          return (
            <InputNumber
              value={text}
              onChange={(value) => this.handleInputNumberChange(row, value)}
              min={1}
              placeholder="请填写"
            />
          );
        // 配套
        } else if (row.type == Codes.CODE_SUPPORT && !row.parent) {
          return (
            <InputNumber
              value={text}
              onChange={(value) => this.handleInputNumberChange(row, value)}
              min={1}
              placeholder="请填写"
            />
          );
        // 课程包
        } else if (row.type == Codes.CODE_PACKAGE) {
          return (
            <InputNumber
              value={text}
              onChange={(value) => this.handleInputNumberChange(row, value)}
              min={1}
              placeholder="请填写"
            />
          );
        // 课程包内的配套
        } else if (row.type == Codes.CODE_SUPPORT && row.parent) {
          return (
            <InputNumber
              value={text}
              onChange={(value) => this.handleInputNumberChange(row, value)}
              min={0}
              placeholder="请填写"
            />
          );
        } else {
          return text;
        }
      },
      width: '6%',
    },{
      title: '小计(¥)',
      dataIndex: 'rowSum',
      key: 9,
      render: (text, row) => ({ children: text, props: { rowSpan: row.sumRows } }),
      width: '8%',
    },{
      title: '操作',
      dataIndex: 'operation',
      key: 10,
      render: (text, row) => ({ children: <a onClick={() => this.handleListItemDel(row)}>删除</a>, props: { rowSpan: row.sumRows } }),
      width: '7%',
    }];

    let total = 0;
    listData.map(item => item.rowSum ? total += item.rowSum : null);

    return (
      <PageHeaderLayout>
        <Card>
          <Form>
            <Form.Item label="选择终端" {...formItemLayout}>
              <Button onClick={this.handleTerminalSelectBtnClick} type="primary" size="small" icon="plus-circle-o">选择</Button>
              {userInfo.userCode ?
                <List
                  size="small"
                  bordered
                  style={{ width: '50%' }}
                  dataSource={[
                    `终端编号: ${userInfo.userCode}`,
                    `终端名称: ${userInfo.userName}`,
                    `所属校区: ${userInfo.campusName}`,
                    `所属渠道: ${userInfo.merchantName}`,
                  ]}
                  renderItem={item => <List.Item>{item}</List.Item>}
                />
              : null}
            </Form.Item>
            <Form.Item label="收货人" {...formItemLayout}>
              {getFieldDecorator('name', {
                rules: [{ required: true, type: 'string', message: '请填写收货人!' }],
                initialValue: userInfo.contactName,
              })(
                <Input style={{ width: "50%" }} placeholder="请填写或使用默认"/>
              )}
            </Form.Item>
            <Form.Item label="联系电话" {...formItemLayout}>
              {getFieldDecorator('mobile', {
                rules: [{ required: true, type: 'string', message: '请填写联系电话!' }],
                initialValue: userInfo.mobile,
              })(
                <Input style={{ width: "50%" }} placeholder="请填写或使用默认"/>
              )}
            </Form.Item>
            <Form.Item label="收货地址" {...formItemLayout}>
              {getFieldDecorator('address', {
                rules: [{ required: true, type: 'string', message: '请填写收货地址!' }],
                initialValue: userInfo.address,
              })(
                <Input.TextArea style={{ width: "50%" }} placeholder="请填写或使用默认"/>
              )}
            </Form.Item>
            <Form.Item label="添加备注" {...formItemLayout}>
              {getFieldDecorator('note', {
                initialValue: userInfo.note,
              })(
                <Input.TextArea style={{ width: "50%" }} placeholder="请输入(选填)" />
              )}
            </Form.Item>
            <Form.Item label="添加商品" {...formItemLayout}>
              {userInfo.merchantId ?
                <Button onClick={this.handleProductSelectBtnClick} type="primary" size="small" icon="plus-circle-o">添加</Button>
              :
                <Tooltip title="先选择终端">
                  <Button onClick={this.handleProductSelectBtnClick} disabled={true} type="primary" size="small" icon="plus-circle-o">添加</Button>
                </Tooltip>
              }
              <Table
                bordered
                scroll={{ x: 1250 }}
                pagination={false}
                columns={columns}
                dataSource={listData}
                footer={() => <strong>{`价格总计:  ${total}元`}</strong>}
              />
            </Form.Item>
          </Form>
          {/*终端选择弹框*/}
          <TerminalSelectModal
            rowKeyName="id"
            modalVisible={terminalModalShow}
            style={{ top: 20 }}
            width={660}
            onOk={this.handleTerminalModalOk}
            onCancel={this.handleTerminalModalCancel}
            onSearch={this.handleTerminalModalSearch}
            fsTableDataSource={terminal.list || []}
            fsTableLoading={terminal.listLoading}
            fsTablePagination={terminal.pagination}
            fsTableOnChange={this.handleTerminalModalTableChange}
          />
          {/*渠道产品选择弹框*/}
          <MerchantProductSelectModal
            rowKeyName="id"
            modalVisible={productModalShow}
            selTableData={products}
            style={{ top: 20 }}
            width={660}
            fsTableDataSource={productList}
            fsTableLoading={mproduct.listLoading}
            fsTablePagination={mproduct.pagination}
            onOk={this.handleProductModalOk}
            onCancel={this.handleProductModalCancel}
            onSearch={this.handleProductModalSearch}
            fsTableOnChange={this.handleProductModalTableChange}
          />
        </Card>
        <FooterToolbar>
          <Button onClick={this.handlePageCancel}>取消</Button>
          <Button onClick={this.handlePageSubmit} type="primary">提交</Button>
        </FooterToolbar>
      </PageHeaderLayout>
    );
  }
}