#!/usr/bin/env node

/*
更新: 可以补充今天的工作项了

依赖node版本7.6以上

使用前：
npm install -g nodemailer
将config里的XXXX替换成自己的信息

使用方法：
1. 将本文件放到项目根目录（注意不要add到git里，必要时可设置.gitignore）
2. 在项目根目录执行 node dailyreport.js

 */

const nodemailer = require('nodemailer');
const readline = require('readline');

const config = {
          gitName     : 'XXXX',
          mailTansport: {
              host  : 'smtp.ym.163.com',
              secure: true,
              port  : 994,
              auth  : {
                  user: 'XXXX@yuanxin2015.com',
                  pass: 'XXXXX',
              },
          },
          mailSubject : `工作日报_XXXX_${generatorDate()}`,
          mailFrom    : '"XXXX" <zhangyu@yuanxin2015.com>',
          mailTo      : [
              // 'XXXXX@yuanxin2015.com',
              // 'zhangbm@yuanxin2015.com',
              'XXXXX@yuanxin2015.com',
          ],
      }

;(async () => {
    let todayWorksArr = await getGitLog() || [];
    printArr(todayWorksArr, '\n今天的工作内容(Commits):');

    todayWorksArr = todayWorksArr.concat(await getWorkList('今天的补充'));
    printArr(todayWorksArr, '\n今天的工作内容:');

    let tomorrowWorksArr = await getWorkList('明天');
    printArr(tomorrowWorksArr, '\n明天的工作计划:');

    let HTML = generatorHTML(todayWorksArr, tomorrowWorksArr);

    if (await confirm('\n确认发送吗？(yes)')) {
        console.log('\n邮件发送中……');
        let log = await sendDailyPort(HTML);
        console.log(log);
        process.exit(0);
    }
    process.exit(0);

})()
    .catch(err => {
        console.log(err);
        process.exit(0);
    });

async function confirm (message) {
    const rl = readline.createInterface({
        input : process.stdin,
        output: process.stdout,
        prompt: '',
    });
    return new Promise((resolve, reject) => {
        rl.write(message + '\n');
        rl.on('line', line => {
            switch (line.trim().toLowerCase()) {
                case 'n':
                case 'no':
                    resolve(false);
                    rl.close();
                    break;
                case '':
                case 'y':
                case 'yes':
                default:
                    resolve(true);
                    rl.close();
                    break;
            }
        });
    });
}

function printArr (arr, msg) {
    if (msg) {console.log(msg);}
    if (arr && arr.length > 0) {
        return arr.forEach(item => console.log('    ' + item));
    } else {
        return console.log('    什么也没有');
    }
}

//日期生成
function generatorDate () {
    let date = new Date();
    return `${date.getFullYear()}${preZeroFill(date.getMonth() + 1, 2)}${preZeroFill(date.getDate(), 2)}`;
}

//补零函数
function preZeroFill (num, size) {
    if (num >= Math.pow(10, size)) { // 如果num本身位数不小于size位
        return num.toString();
    } else {
        var _str = Array(size + 1).join('0') + num;
        return _str.slice(_str.length - size);
    }
}

//HTML生成
function generatorHTML (gitLogArr, tomorrowWorksArr) {
    let todayHtmlContent = '';
    let todayHtmlTable = '';
    if (gitLogArr && gitLogArr.length > 0) {
        gitLogArr.forEach((item, index) => {
            todayHtmlContent += `
                <tr>
                    <td>${index + 1}</td>
                    <td>${item}</td>
                </tr>
            `;
        });
        todayHtmlTable = `
            <p style="color:#1F497D">今天工作内容：</p>
            <table class="table table-bordered">
                <tr style="border-bottom: solid 1pt #333;">
                    <th style="width:70px">序号</th>
                    <th>工作任务项</th>
                </tr>
                ${todayHtmlContent}
            </table>
        `;
    }

    let tomorrowHtmlContent = '';
    let tomorrowHtmlTable = '';
    if (tomorrowWorksArr && tomorrowWorksArr.length > 0) {
        tomorrowWorksArr.forEach((item, index) => {
            tomorrowHtmlContent += `
                <tr>
                    <td>${index + 1}</td>
                    <td>${item}</td>
                </tr>
            `;
        });
        tomorrowHtmlTable = `
            <p style="color:#1F497D">明天工作计划：</p>
            <table class="table table-bordered">
                <tr style="border-bottom: solid 1pt #333;">
                    <th style="width:70px">序号</th>
                    <th>工作任务项</th>
                </tr>
                ${tomorrowHtmlContent}
            </table>
        `;
    }

    // console.log(todayHtmlTable,tomorrowHtmlTable);
    let html = `
        <style>${renderStyle()}</style>
        ${todayHtmlTable}
        ${tomorrowHtmlTable}
    `;
    return html;
}

//获取gitLog
async function getGitLog () {
    const cmdStr = `git log --since="6am" --author="${config.gitName}" --pretty=format:"%s" --no-merges`; // --since="6am"
    const exec = require('child_process').exec;
    return new Promise((resolve, reject) => {
        exec(cmdStr, function (err, stdout, stderr) {
            if (err) {
                reject(err);
            } else {
                if (stdout.toString().trim() === '') {resolve(null);}
                let gitLogArr = stdout.toString().trim().split('\n');

                resolve(gitLogArr);
            }
        });
    });
}

//邮件发送
function sendDailyPort (HTML, callback) {
    return new Promise((resolve, reject) => {
        const transporter = nodemailer.createTransport(config.mailTansport);
        const mailOptions = {
            from   : config.mailFrom, // sender address
            to     : config.mailTo, // ["liuzhen@yuanxin2015.com","zhangbm@yuanxin2015.com","zhangyu@yuanxin2015.com"], // list of receivers
            subject: config.mailSubject, // Subject line
            html   : HTML,
        };

        // 测试账号
        // transporter.verify(function (error, success) {
        //   if (error) {
        //     reject(error)
        //   } else {
        //     resolve('Server is ready to take our messages')
        //   }
        // })

        // 发送邮件
        transporter.sendMail(mailOptions, function (error, info) {
            if (error) {
                callback && callback(error);
                reject(error);
            } else {
                callback && callback(null, info.response);
                resolve(info.response);
            }
        });
    });
}

function getWorkList (dayStr) {
    const rl = readline.createInterface({
        input : process.stdin,
        output: process.stdout,
        prompt: '',
    });
    return new Promise((resolve, reject) => {
        rl.question(`是否录入入${dayStr}工作计划？(yes)`, answer => {
            switch (answer.toLowerCase()) {
                case 'n':
                case 'no':
                case 'not':
                    rl.write(`${dayStr}计划缺省\n`);
                    resolve([]);
                    break;
                case '':
                case 'y':
                case 'yes':
                default:
                    let works = [];
                    rl.write(`请录入${dayStr}工作计划，回车录入下一项，键入 end 以结束录入：\n`);
                    rl.on('line', function (line) {
                        switch (line.trim()) {
                            case '':
                                break;
                            case 'end':
                                resolve(works);
                                rl.close();
                                break;
                            default:
                                works.push(line);
                                break;
                        }
                    });
            }
        });
    });

}

function renderStyle () {
    return `
table {
  border-spacing: 0;
  border-collapse: collapse;
}
td,
th {
  padding: 0;
}
table {
  background-color: transparent;
}
caption {
  padding-top: 8px;
  padding-bottom: 8px;
  color: #777;
  text-align: left;
}
th {
  text-align: left;
}
.table {
  width: 100%;
  max-width: 100%;
  margin-bottom: 20px;
}
.table > thead > tr > th,
.table > tbody > tr > th,
.table > tfoot > tr > th,
.table > thead > tr > td,
.table > tbody > tr > td,
.table > tfoot > tr > td {
  padding: 8px;
  line-height: 1.42857143;
  vertical-align: top;
  border-top: 1px solid #ddd;
}
.table > thead > tr > th {
  vertical-align: bottom;
  border-bottom: 2px solid #ddd;
}
.table > caption + thead > tr:first-child > th,
.table > colgroup + thead > tr:first-child > th,
.table > thead:first-child > tr:first-child > th,
.table > caption + thead > tr:first-child > td,
.table > colgroup + thead > tr:first-child > td,
.table > thead:first-child > tr:first-child > td {
  border-top: 0;
}
.table > tbody + tbody {
  border-top: 2px solid #ddd;
}
.table .table {
  background-color: #fff;
}
.table-condensed > thead > tr > th,
.table-condensed > tbody > tr > th,
.table-condensed > tfoot > tr > th,
.table-condensed > thead > tr > td,
.table-condensed > tbody > tr > td,
.table-condensed > tfoot > tr > td {
  padding: 5px;
}
.table-bordered {
  border: 1px solid #ddd;
}
.table-bordered > thead > tr > th,
.table-bordered > tbody > tr > th,
.table-bordered > tfoot > tr > th,
.table-bordered > thead > tr > td,
.table-bordered > tbody > tr > td,
.table-bordered > tfoot > tr > td {
  border: 1px solid #ddd;
}
.table-bordered > thead > tr > th,
.table-bordered > thead > tr > td {
  border-bottom-width: 2px;
}
.table-striped > tbody > tr:nth-of-type(odd) {
  background-color: #f9f9f9;
}
.table-hover > tbody > tr:hover {
  background-color: #f5f5f5;
}
table col[class*="col-"] {
  position: static;
  display: table-column;
  float: none;
}
table td[class*="col-"],
table th[class*="col-"] {
  position: static;
  display: table-cell;
  float: none;
}
.table > thead > tr > td.active,
.table > tbody > tr > td.active,
.table > tfoot > tr > td.active,
.table > thead > tr > th.active,
.table > tbody > tr > th.active,
.table > tfoot > tr > th.active,
.table > thead > tr.active > td,
.table > tbody > tr.active > td,
.table > tfoot > tr.active > td,
.table > thead > tr.active > th,
.table > tbody > tr.active > th,
.table > tfoot > tr.active > th {
  background-color: #f5f5f5;
}
.table-hover > tbody > tr > td.active:hover,
.table-hover > tbody > tr > th.active:hover,
.table-hover > tbody > tr.active:hover > td,
.table-hover > tbody > tr:hover > .active,
.table-hover > tbody > tr.active:hover > th {
  background-color: #e8e8e8;
}
.table > thead > tr > td.success,
.table > tbody > tr > td.success,
.table > tfoot > tr > td.success,
.table > thead > tr > th.success,
.table > tbody > tr > th.success,
.table > tfoot > tr > th.success,
.table > thead > tr.success > td,
.table > tbody > tr.success > td,
.table > tfoot > tr.success > td,
.table > thead > tr.success > th,
.table > tbody > tr.success > th,
.table > tfoot > tr.success > th {
  background-color: #dff0d8;
}
.table-hover > tbody > tr > td.success:hover,
.table-hover > tbody > tr > th.success:hover,
.table-hover > tbody > tr.success:hover > td,
.table-hover > tbody > tr:hover > .success,
.table-hover > tbody > tr.success:hover > th {
  background-color: #d0e9c6;
}
.table > thead > tr > td.info,
.table > tbody > tr > td.info,
.table > tfoot > tr > td.info,
.table > thead > tr > th.info,
.table > tbody > tr > th.info,
.table > tfoot > tr > th.info,
.table > thead > tr.info > td,
.table > tbody > tr.info > td,
.table > tfoot > tr.info > td,
.table > thead > tr.info > th,
.table > tbody > tr.info > th,
.table > tfoot > tr.info > th {
  background-color: #d9edf7;
}
.table-hover > tbody > tr > td.info:hover,
.table-hover > tbody > tr > th.info:hover,
.table-hover > tbody > tr.info:hover > td,
.table-hover > tbody > tr:hover > .info,
.table-hover > tbody > tr.info:hover > th {
  background-color: #c4e3f3;
}
.table > thead > tr > td.warning,
.table > tbody > tr > td.warning,
.table > tfoot > tr > td.warning,
.table > thead > tr > th.warning,
.table > tbody > tr > th.warning,
.table > tfoot > tr > th.warning,
.table > thead > tr.warning > td,
.table > tbody > tr.warning > td,
.table > tfoot > tr.warning > td,
.table > thead > tr.warning > th,
.table > tbody > tr.warning > th,
.table > tfoot > tr.warning > th {
  background-color: #fcf8e3;
}
.table-hover > tbody > tr > td.warning:hover,
.table-hover > tbody > tr > th.warning:hover,
.table-hover > tbody > tr.warning:hover > td,
.table-hover > tbody > tr:hover > .warning,
.table-hover > tbody > tr.warning:hover > th {
  background-color: #faf2cc;
}
.table > thead > tr > td.danger,
.table > tbody > tr > td.danger,
.table > tfoot > tr > td.danger,
.table > thead > tr > th.danger,
.table > tbody > tr > th.danger,
.table > tfoot > tr > th.danger,
.table > thead > tr.danger > td,
.table > tbody > tr.danger > td,
.table > tfoot > tr.danger > td,
.table > thead > tr.danger > th,
.table > tbody > tr.danger > th,
.table > tfoot > tr.danger > th {
  background-color: #f2dede;
}
.table-hover > tbody > tr > td.danger:hover,
.table-hover > tbody > tr > th.danger:hover,
.table-hover > tbody > tr.danger:hover > td,
.table-hover > tbody > tr:hover > .danger,
.table-hover > tbody > tr.danger:hover > th {
  background-color: #ebcccc;
}
.table-responsive {
  min-height: .01%;
  overflow-x: auto;
}
`;
}