'use strict';

/**
 * 签名相关控制器
 *
 * @author EllisRan
 * @date 2019/8/14
 * @version
 */
const moment = require('moment');
const path = require('path');
const sendToWormhole = require('stream-wormhole');
const fs = require('fs');

module.exports = app => {

    class SignController extends app.BaseController {
        /**
         * 电子签名页面
         *
         * @param {Object} ctx - egg全局变量
         * @return {void}
         */
        async index(ctx) {
            const renderData = {
                error: false,
            };
            try {
                const userinfo = await ctx.service.projectAccount.getDataById(ctx.query.user_id);
                if (userinfo && userinfo.session_token && userinfo.session_token === ctx.query.app_token) {
                    renderData.id = userinfo.id;
                    renderData.name = userinfo.name;
                    renderData.from = ctx.query.from ? ctx.query.from : '';
                    // renderData.role = userinfo.role;
                } else {
                    // throw '参数有误, 无法访问本页';
                    throw 'token已更新，请重新登录并再次扫码。';
                }
            } catch (error) {
                console.log(error);
                renderData.error = true;
            }
            await ctx.render('sign/info.ejs', renderData);
        }

        /**
         * 保存签名
         *
         * @param {Object} ctx - egg全局变量
         * @return {void}
         */
        async save(ctx) {
            try {
                if (ctx.request.body && ctx.request.body.id) {
                    const signData = await ctx.service.netcasign.getDataByCondition({ uid: ctx.request.body.id });
                    if (!signData) {
                        throw '当前用户不存在绑定证书';
                    }
                    const result = await ctx.service.netcasign.save({ sign_base64: ctx.request.body.sign_base64 }, signData.id);
                    if (result) {
                        ctx.body = { err: 0, msg: '' };
                    } else {
                        throw '添加数据库失败';
                    }
                } else {
                    const stream = await ctx.getFileStream({ requireFile: false });
                    const create_time = Date.parse(new Date()) / 1000;
                    const dirName = 'app/public/upload/sign/';
                    const fileName = moment().format('YYYYMMDD') + '_sign_' + create_time + '.png';
                    await ctx.helper.saveStreamFile(stream, path.join(this.app.baseDir, dirName, fileName));
                    await sendToWormhole(stream);

                    const result = await ctx.service.projectAccount.update({ sign_path: fileName }, { id: stream.fields.id });
                    if (result) {
                        ctx.body = { err: 0, msg: '' };
                    } else {
                        throw '添加数据库失败';
                    }
                }
            } catch (err) {
                this.log(err);
                ctx.body = { err: 1, msg: err.toString() };
            }
        }
    }

    return SignController;
};