'use strict';
import React, { useState, useEffect } from 'react';
import { connect } from 'react-redux';
import { Modal, Form, Button, Notification } from '@douyinfe/semi-ui';
import { IconUpload } from '@douyinfe/semi-icons';
import XLSX from 'xlsx';
import moment from 'moment';

//下载模板和上传文件读取
const ImportModal = props => {
    const { dispatch, actions, user, onCancel } = props
    const { humanAffairs } = actions;
    const [msg, setMsg] = useState('')
    const [loading, setLoading] = useState('')
    const [postData, setPostData] = useState([])
    //初始化
    useEffect(() => {

    }, []);

    const confirm = () => {
        if (postData.length) {
            setLoading(true)
            dispatch(humanAffairs.importDepartmentTrainRecord(postData)).then(res => {
                if (res.success) {
                    onCancel()
                }
                setLoading(false)
            })
        } else {
            Notification.warning({ content: '没有数据可以提交，请上传数据文件', duration: 2 })
        }
    }

    const download = () => {
        const head = [["部门", "实际培训类型", "培训时间", "培训内容", "培训针对人群", "培训讲师", "培训方式", "考核形式", "培训时长"]];
        let sheetName = '部门培训台账';
        let workbook = { SheetNames: [sheetName], Sheets: {} };
        workbook.Sheets[sheetName] = XLSX.utils.aoa_to_sheet(head);//json转excel   
        workbook.Sheets[sheetName]['!cols'] = [
            { wch: 12 }, { wch: 12 }, { wch: 15 }, { wch: 20 }, { wch: 12 },
            { wch: 10 }, { wch: 10 }, { wch: 10 }, { wch: 10 }];
        let wopts = { bookType: 'xlsx', type: 'buffer' };// 生成excel的配置项
        XLSX.writeFile(workbook, '部门培训记录导入模板.xlsx', wopts);
    }
    const error = (msg) => {
        setMsg(msg)
        onError({ message: msg })
    }

    const getFileBlob = (url) => {
        return new Promise((resolve, reject) => {
            let request = new XMLHttpRequest()
            request.open("GET", url, true)
            request.responseType = "blob"
            request.onreadystatechange = e => {
                if (request.readyState == 4) {
                    if (request.status == 200) {
                        if (window.FileReader) {
                            let reader = new FileReader();
                            reader.readAsBinaryString(request.response);
                            reader.onload = event => {
                                try {
                                    const { result } = event.target;
                                    // 以二进制流方式读取得到整份excel表格对象
                                    const workbook = XLSX.read(result, {
                                        type: "binary",
                                        cellDates: true,//设为true，将天数的时间戳转为时间格式
                                        codepage: 936//解决了乱码问题
                                    });
                                    let data = []; // 存储获取到的数据
                                    // 遍历每张工作表进行读取（这里默认只读取第一张表）
                                    for (const sheet in workbook.Sheets) {
                                        if (workbook.Sheets.hasOwnProperty(sheet)) {
                                            data = data.concat(XLSX.utils.sheet_to_json(workbook.Sheets[sheet]));
                                        }
                                    }
                                    resolve(data);//导出数据
                                } catch (e) {
                                    reject("失败");
                                    error(`文件解析失败，请检查编码格式`)
                                }
                            }
                        }
                    }
                }
            }
            request.send();
        })
    }
    const judgeNull = (value) => {
        return value ? String(value).trim().replace(/\s*/g, "") : null;
    }

    const changeTime = (v) => {
        //注意的点：xlsx将excel中的时间内容解析后，会小一天
        //如2020/8/1，xlsx会解析成  Fri Jul 31 2020 23:59:17 GMT+0800    小了43秒  
        let a = new Date(v);
        a.setTime(a.getTime() + 43 * 1000);
        return a;
    }
    return (
        <Modal
            title="导入" visible={true}
            onOk={confirm} width={620}
            confirmLoading={loading}
            onCancel={() => {
                setMsg('')
                setLoading(false)
                setPostData([])
                onCancel()
            }}
        >
            <div style={{ borderBottom: '1px solid #DCDEE0', margin: '0px -24px' }}></div>
            <Form>
                <Form.Upload
                    label={'部门培训记录'} labelPosition='left'
                    action={'/'} accept={'.xlsx'}
                    maxSize={204800} limit={1}
                    onRemove={(currentFile, fileList, fileItem) => {
                        setMsg('');
                        setPostData([]);
                    }}
                    customRequest={(data) => {
                        const { file, onSuccess, onError } = data
                        getFileBlob(file.url).then(res => {
                            if (res.length > 1000) {
                                error('一次性上传数据行数应小于1000行，请分批上传')
                                return
                            }
                            if (!res.length) {
                                error('请填写至少一行数据')
                                return
                            }
                            let postData = [];
                            let ymdhms = /([0-9]{3}[1-9]|[0-9][1-9][0-9]2022-01-07 19:29:33|[0-9]2022-01-07 19:29:33[1-9][0-9]|[1-9][0-9]{3})-(((0[13578]|1[02])-(0[1-9]|[12][0-9]|3[01]))|((0[469]|11)-(0[1-9]|[12][0-9]|30))|(02-(0[1-9]|[1][0-9]|2[0-8])))([ ])([0-1]?[0-9]|2[0-3]):([0-5][0-9]):([0-5][0-9])/;
                            for (let i = 0; i < res.length; i++) {
                                let d = res[i];
                                let departmentName = judgeNull(d['部门']);
                                let trainingType = judgeNull(d['实际培训类型']);
                                let trainDate = d['培训时间'];
                                let trainContent = judgeNull(d['培训内容']);
                                let trainWho = judgeNull(d['培训针对人群']);
                                let trainer = judgeNull(d['培训讲师']);
                                let trainMethod = judgeNull(d['培训方式']);
                                let appraisalMethod = judgeNull(d['考核形式']);
                                let trainTime = judgeNull(d['培训时长']);
                                if (!departmentName) {
                                    error(`第${i + 2}行【部门】为空，请填写`)
                                    return
                                }
                                if (user.allDepartment && user.allDepartment.departments) {
                                    let dept = user.allDepartment.departments.find(d => !d.delete && d.name === departmentName);
                                    if (dept) {
                                        departmentName = dept.name;
                                    } else {
                                        error(`第${i + 2}行【部门】数据有误，请确认后重新填写`)
                                        return
                                    }
                                }
                                if (!trainingType) {
                                    error(`第${i + 2}行【实际培训类型】为空，请填写`)
                                    return
                                }
                                if (!trainDate) {
                                    error(`第${i + 2}行【培训时间】为空，请填写`)
                                    return
                                }
                                if (trainDate instanceof Date) {
                                    trainDate = moment(trainDate).format("YYYY-MM-DD HH:mm:ss");
                                    if (!ymdhms.test(trainDate)) {
                                        error(`第${i + 2}行【培训时间】填写错误，请填写yyyy/mm/dd hh:mm格式`)
                                        return
                                    }
                                } else {
                                    error(`第${i + 2}行【培训时间】填写错误，请确认后重新填写`)
                                    return
                                }
                                trainDate = changeTime(trainDate);

                                if (!trainContent) {
                                    error(`第${i + 2}行【培训内容】为空，请填写`)
                                    return
                                }
                                if (!trainMethod) {
                                    error(`第${i + 2}行【培训方式】为空，请填写`)
                                    return
                                }
                                if (!appraisalMethod) {
                                    error(`第${i + 2}行【考核形式】为空，请填写`)
                                    return
                                }
                                if (!trainTime) {
                                    error(`第${i + 2}行【培训时长】为空，请填写`)
                                    return
                                }
                                postData.push({
                                    departmentName, trainingType, trainDate, trainContent,
                                    trainWho: trainWho || '', trainer: trainer || '',
                                    trainMethod, appraisalMethod, trainTime, origin: 'import'
                                })
                            }
                            setPostData(postData)
                            let msg = '文件解析完成，点击确定按钮上传保存！'
                            setMsg(msg)
                            onSuccess({ message: msg })
                        })
                    }}>
                    <Button icon={<IconUpload />} theme="light">
                        请选择文件
                    </Button>
                </Form.Upload>
                <span>{msg}</span>
                <div style={{ color: '#ccc' }}>最大不超过200M，导入文件需与
                    <span onClick={() => download()} style={{ cursor: 'pointer', color: '#0066FF' }}>导入模板</span>
                    一致</div>
            </Form>
        </Modal >
    )
}

function mapStateToProps(state) {
    const { auth, global } = state;
    return {
        user: auth.user,
        actions: global.actions,
    }
}

export default connect(mapStateToProps)(ImportModal);