import React from 'react';
import { Link } from 'react-router-dom';
import moment from 'moment';
import { Form, Input, Button, Row, Col, InputNumber, Upload, DatePicker, Checkbox, Icon } from 'antd';
import './index.less';
import Editor from '@src/components/Editor';
import Page from '@src/containers/Page';
import Block from '@src/components/Block';
import TreeSelect from '@src/components/TreeSelect';
import Select from '@src/components/Select';
import EditTableCell from '@src/components/EditTableCell';
import Radio from '@src/components/Radio';
import ActionLayout from '@src/layouts/ActionLayout';
import TableLayout from '@src/layouts/TableLayout';
// import FileUpload from '@src/components/FileUpload';
import { formatFormError, formatSeconds, formatTreeData, getMap } from '@src/services/Tools';
import { asyncSMessage } from '@src/services/AsyncTools';
import { CrowdList, CourseStatus, CourseVideoType } from '../../../../Constant';
import { Course } from '../../../stores/course';
import { System } from '../../../stores/system';
import { Exercise } from '../../../stores/exercise';

const CourseStatusMap = getMap(CourseStatus, 'value', 'label');

export default class extends Page {
  init() {
    this.exerciseMap = {};
    this.actionList = [{
      key: 'add',
      type: 'primary',
      name: '上传视频',
      render: (item) => {
        return <Upload
          showUploadList={false}
          beforeUpload={(file) => System.uploadVideo(file).then((result) => {
            return Course.addNo({ courseId: this.params.id, resource: result.url, time: result.time, title: file.name.split('.')[0] });
          }).then(() => {
            this.refreshNo();
          })}
        >
          <Button>{item.name}</Button>
        </Upload>;
      },
    }];

    this.noColumns = [{
      title: '课程序号',
      dataIndex: 'no',
    }, {
      title: '名称',
      dataIndex: 'title',
      render: (text, record) => {
        return <EditTableCell value={text} onChange={(v) => {
          this.changeNo('title', record, v);
        }} />;
      },
    }, {
      title: '时长',
      dataIndex: 'time',
      render: (text) => {
        return formatSeconds(text);
      },
    }, {
      title: '视频地址',
      dataIndex: 'resource',
      render: (text) => {
        return <a href={text} target='_blank'>访问</a>;
      },
    }, {
      title: '试用视频',
      dataIndex: 'isTrail',
      render: (text, record) => {
        return <div>
          <Checkbox checked={!!text} onChange={(v) => {
            this.changeNo('isTrail', record, v.target.checked ? 1 : 0);
          }} />
          {text > 0 && <InputNumber value={record.startTrail} onChange={(v) => {
            this.changeNo('startTrail', record, v);
          }} />}
          {text > 0 && <InputNumber value={record.endTrail} onChange={(v) => {
            this.changeNo('endTrail', record, v);
          }} />}
          {text > 0 && <Upload
            showUploadList={false}
            beforeUpload={(file) => System.uploadVideo(file).then((result) => {
              return this.changeNo('trailResource', record, result.url);
            })}
          >
            <Button>上传视频{record.trailResource ? '(已上传)' : ''}</Button>
          </Upload>}
        </div>;
      },
    }, {
      title: '操作',
      dataIndex: 'handler',
      render: (text, record) => {
        const { total } = this.state;
        return <div className="table-button">
          {record.no > 1 && (
            <a onClick={() => {
              this.changeNo('no', record, record.no - 1);
            }}>上移</a>
          )}
          {record.no <= total && (
            <a onClick={() => {
              this.changeNo('no', record, record.no + 1);
            }}>下移</a>
          )}
          {(
            <a onClick={() => {
              this.delNo(record.id);
            }}>删除</a>
          )}
        </div>;
      },
    }];

    this.timeColumns = [{
      title: '时间段',
      dataIndex: 'time',
      render: (text, record) => {
        return <DatePicker.RangePicker value={[record.startTime, record.endTime]} onChange={(value) => {
          this.changeTime(record.id, { startTime: value[0], endTime: value[1] });
        }} />;
      },
    }, {
      title: '学员数量',
      dataIndex: 'studentNumber',
      render: (text, record) => {
        return <Link to={`/course/student/${this.params.id}?timeId=${record.id}`}>{text || 0}</Link>;
      },
    }, {
      title: '状态',
      dataIndex: 'status',
      render: (text, record) => {
        let status = 0;
        const start = new Date(record.startTime);
        const end = new Date(record.endTime);
        if (new Date().getTime() > start.getTime()) {
          status = 1;
          if (new Date().getTime() > end.getTime()) {
            status = 2;
          }
        }

        return CourseStatusMap[status] || status;
      },
    }];

    Exercise.courseStruct().then((result) => {
      const list = result.map(row => { row.title = `${row.titleZh}`; row.value = row.id; return row; });
      const tree = formatTreeData(list, 'id', 'title', 'parentId');
      this.exerciseMap = getMap(result.map(row => {
        row.title = `${row.titleZh}`;
        row.value = row.id;
        return row;
      }), 'id');

      this.setState({ exercise: tree });
    });
  }

  initData() {
    const { id } = this.params;
    const { module } = this.state.search;
    let handler;
    if (id) {
      handler = Course.get({ id });
    } else {
      handler = Promise.resolve({ structId: '', courseModule: module, expireDays: 180 });
    }

    handler
      .then(result => {
        this.setState({ module: result.courseModule });
        const { form } = this.props;
        result.structId = `${result.structId}`;
        form.setFieldsValue(result);
        if (id) {
          switch (result.courseModule) {
            case 'video':
              this.refreshNo();
              break;
            case 'online':
              this.refreshTime();
              break;
            default:
          }
        }
        this.setState({ data: result });
      });
  }

  refreshNo() {
    const { id } = this.params;
    Course.allNo({ courseId: id }).then(result => {
      this.setState({ list: result, total: result.length, no: true });
    });
  }

  changeNo(field, record, value) {
    Course.editNo({ id: record.id, [field]: value, courseId: record.courseId }).then(() => {
      this.refreshNo();
    });
  }

  delNo(id) {
    Course.delNo({ id }).then(() => {
      this.refreshNo();
    });
  }

  refreshTime() {
    const { id } = this.params;
    Course.listTime({ courseId: id }).then(result => {
      result.list = result.list.map(row => {
        row.startTime = moment(row.startTime);
        row.endTime = moment(row.endTime);
        return row;
      });
      this.setState({ list: result.list, total: result.total, time: true });
    });
  }

  changeTime(id, data) {
    data.id = id;
    Course.editTime(data).then(() => {
      this.refreshTime();
    });
  }

  submit() {
    const { form } = this.props;
    const { module } = this.state;
    form.validateFields((err) => {
      if (!err) {
        const data = form.getFieldsValue();
        data.parentStructId = this.exerciseMap[data.structId] ? this.exerciseMap[data.structId].parentId : 0;
        data.extend = this.exerciseMap[data.structId] ? this.exerciseMap[data.structId].extend : '';
        let handler;
        if (data.id) {
          handler = Course.edit(data);
        } else {
          data.courseModule = module;
          handler = Course.add(data);
        }
        handler.then((result) => {
          asyncSMessage('保存成功');
          if (data.id) {
            linkTo(`/course/detail/${data.id}`);
          } else {
            linkTo(`/course/detail/${result.id}`);
          }
        }).catch((e) => {
          if (e.result) form.setFields(formatFormError(data, e.result));
        });
      }
    });
  }

  renderVideo() {
    const { exercise, data } = this.state;
    const { getFieldDecorator, getFieldValue, setFieldsValue } = this.props.form;
    const structIdConfig = {
      rules: [{
        required: true, message: '请选择学科',
      }],
    };
    if (data.structId) {
      structIdConfig.initialValue = data.structId;
    }
    const cover = getFieldValue('cover');
    return <Block>
      <Form>
        {getFieldDecorator('id')(<input hidden />)}
        {exercise && data && <Form.Item key={data.structId} labelCol={{ span: 5 }} wrapperCol={{ span: 16 }} label='学科'>
          {getFieldDecorator('structId', structIdConfig)(
            <TreeSelect treeData={exercise} />,
          )}
        </Form.Item>}
        <Form.Item labelCol={{ span: 5 }} wrapperCol={{ span: 16 }} label='类型'>
          {getFieldDecorator('videoType', {
            rules: [
              { required: true, message: '请选择' },
            ],
          })(
            <Select select={CourseVideoType} />,
          )}
        </Form.Item>
        <Form.Item labelCol={{ span: 5 }} wrapperCol={{ span: 16 }} label='适合人群'>
          {getFieldDecorator('crowd', {
            rules: [
              { required: true, message: '请选择' },
            ],
          })(
            <Radio select={CrowdList} />,
          )}
        </Form.Item>
        <Form.Item labelCol={{ span: 5 }} wrapperCol={{ span: 16 }} label='定价'>
          {getFieldDecorator('price', {
            rules: [
              { required: true, message: '请输入价格' },
            ],
          })(
            <InputNumber placeholder='请输入' />,
          )}
        </Form.Item>
        <Form.Item labelCol={{ span: 5 }} wrapperCol={{ span: 16 }} label='课程名称'>
          {getFieldDecorator('title', {
            rules: [
              { required: true, message: '请输入课程名称' },
            ],
          })(
            <Input placeholder='请输入课程名称' />,
          )}
        </Form.Item>
        <Form.Item labelCol={{ span: 5 }} wrapperCol={{ span: 16 }} label='开通有效期'>
          {getFieldDecorator('expireDays', {
            rules: [
              { required: true, message: '请输入有效期' },
            ],
          })(
            <InputNumber placeholder='天' min={0} />,
          )}
        </Form.Item>
        <Form.Item labelCol={{ span: 5 }} wrapperCol={{ span: 16 }} label='使用有效期'>
          {getFieldDecorator('useExpireDays', {
            rules: [
              { required: true, message: '请输入有效期' },
            ],
          })(
            <InputNumber placeholder='天' min={0} />,
          )}
        </Form.Item>
        <Form.Item labelCol={{ span: 5 }} wrapperCol={{ span: 16 }} label='教师'>
          {getFieldDecorator('teacher', {
            rules: [
              { required: true, message: '请输入教师' },
            ],
          })(
            <Input placeholder='请输入教师' />,
          )}
        </Form.Item>
        <Form.Item labelCol={{ span: 5 }} wrapperCol={{ span: 16 }} label='课程封面'>
          {getFieldDecorator('cover', {
            rules: [
              { required: true, message: '上传图片' },
            ],
          })(
            <Upload
              listType="picture-card"
              showUploadList={false}
              beforeUpload={(file) => System.uploadImage(file).then((result) => {
                setFieldsValue({ cover: result.url });
                return Promise.reject();
              })}
            >
              {cover ? <img src={cover} alt="avatar" /> : <div>
                <Icon type={this.state.loading ? 'loading' : 'plus'} />
                <div className="ant-upload-text">Upload</div>
              </div>}
            </Upload>,
          )}
        </Form.Item>
      </Form>
    </Block>;
  }

  renderNo() {
    const { no } = this.state;
    if (!no) return null;
    return <Block>
      <h1>上传正式视频</h1>
      <ActionLayout
        itemList={this.actionList}
        selectedKeys={this.state.selectedKeys}
        onAction={key => this.onAction(key)}
      />
      <TableLayout
        columns={this.noColumns}
        list={this.state.list}
        pagination={false}
        loading={this.props.core.loading}
        onChange={(pagination, filters, sorter) => this.tableChange(pagination, filters, sorter)}
        onSelect={(keys, rows) => this.tableSelect(keys, rows)}
        selectedKeys={this.state.selectedKeys}
      />
    </Block>;
  }

  renderInfoVideo() {
    const { getFieldDecorator } = this.props.form;
    return <Block flex>
      <h1>课程介绍</h1>
      <Form>
        <Form.Item label='老师资历'>
          {getFieldDecorator('teacherContent', {
          })(
            <Editor placeholder='输入内容' />,
          )}
        </Form.Item>
        <Form.Item label='基本参数'>
          {getFieldDecorator('baseContent', {
          })(
            <Editor placeholder='输入内容' />,
          )}
        </Form.Item>
        <Form.Item label='授课内容'>
          {getFieldDecorator('courseContent', {
          })(
            <Editor placeholder='输入内容' />,
          )}
        </Form.Item>
        <Form.Item label='授课重点'>
          {getFieldDecorator('pointContent', {
          })(
            <Editor placeholder='输入内容' />,
          )}
        </Form.Item>
        <Form.Item label='适合人群'>
          {getFieldDecorator('crowdContent', {
          })(
            <Editor placeholder='输入内容' />,
          )}
        </Form.Item>
      </Form>
    </Block>;
  }

  renderSyllabus() {
    const { getFieldDecorator } = this.props.form;
    return <Block flex>
      <Form>
        <Form.Item label='授课大纲'>
          {getFieldDecorator('syllabusContent', {
          })(
            <Editor placeholder='输入内容' />,
          )}
        </Form.Item>
      </Form>
    </Block>;
  }

  renderPromote() {
    const { getFieldDecorator } = this.props.form;
    return <Block flex>
      <Form>
        <Form.Item label='优惠信息'>
          {getFieldDecorator('promoteContent', {
          })(
            <Editor placeholder='输入内容' />,
          )}
        </Form.Item>
      </Form>
    </Block>;
  }

  renderOnline() {
    const { exercise, data } = this.state;
    const { getFieldDecorator } = this.props.form;
    const structIdConfig = {
      rules: [{
        required: true, message: '请选择学科',
      }],
    };
    if (data.structId) {
      structIdConfig.initialValue = data.structId;
    }
    return <Block>
      <Form>
        {getFieldDecorator('id')(<input hidden />)}
        {exercise && <Form.Item labelCol={{ span: 5 }} wrapperCol={{ span: 16 }} label='学科'>
          {getFieldDecorator('structId', structIdConfig)(
            <TreeSelect treeData={exercise} />,
          )}
        </Form.Item>}
        <Form.Item labelCol={{ span: 5 }} wrapperCol={{ span: 16 }} label='课程名称'>
          {getFieldDecorator('title', {
            rules: [
              { required: true, message: '请输入课程名称' },
            ],
          })(
            <Input placeholder='请输入课程名称' />,
          )}
        </Form.Item>
        <Form.Item labelCol={{ span: 5 }} wrapperCol={{ span: 16 }} label='提问权限延迟'>
          {getFieldDecorator('askExtendDays', {
            rules: [
              { required: true, message: '请输入扩展天数' },
            ],
          })(
            <InputNumber placeholder='天' />,
          )}
        </Form.Item>
      </Form>
    </Block>;
  }

  renderTime() {
    const { time, timerange } = this.state;
    if (!time) return null;
    return <Block>
      <h1>课时管理</h1>
      <TableLayout
        columns={this.timeColumns}
        list={this.state.list}
        pagination={false}
        loading={this.props.core.loading}
        onChange={(pagination, filters, sorter) => this.tableChange(pagination, filters, sorter)}
        onSelect={(keys, rows) => this.tableSelect(keys, rows)}
        selectedKeys={this.state.selectedKeys}
      />
      <Row>
        <Col span={8}>
          <Form.Item>
            <DatePicker.RangePicker value={timerange} onChange={(value) => {
              this.setState({ timerange: value });
            }} />
          </Form.Item>
        </Col>
        <Col span={1}>
          <Form.Item>
            <Button onClick={() => {
              Course.addTime({ courseId: this.params.id, startTime: timerange[0], endTime: timerange[1] }).then(() => {
                this.refreshTime();
                this.setState({ timerange: null });
              });
            }}>添加</Button>
          </Form.Item>
        </Col>
      </Row>
    </Block>;
  }

  renderContent() {
    switch (this.state.module) {
      case 'online':
        return [this.renderOnline(), this.renderTime()];
      case 'video':
        return [this.renderVideo(), this.renderNo(), this.renderInfoVideo(), this.renderSyllabus(), this.renderPromote()];
      default:
        return <div />;
    }
  }

  renderView() {
    return <div flex>
      {this.renderContent()}
      <Row type="flex" justify="center">
        <Col>
          <Button type="primary" onClick={() => {
            this.submit();
          }}>保存</Button>
        </Col>
      </Row>
    </div>;
  }
}