'use strict';

/**
 * 项目账号数据模型
 *
 * @author CaiAoLin
 * @date 2017/11/16
 * @version
 */

// 加密类
const crypto = require('crypto');
const SSO = require('../lib/sso');
module.exports = app => {

    class ProjectAccount extends app.BaseService {

        /**
         * 构造函数
         *
         * @param {Object} ctx - egg全局变量
         * @return {void}
         */
        constructor(ctx) {
            super(ctx);
            this.tableName = 'project_account';
        }

        /**
         * 数据验证规则
         *
         * @param {String} scene - 场景
         * @return {Object} - 返回数据
         */
        rule(scene) {
            let rule = {};
            switch (scene) {
                case 'login':
                    rule = {
                        account: { type: 'string', required: true, min: 2 },
                        project_password: { type: 'string', required: true, min: 4 },
                        project: { type: 'string', required: true, min: 13 },
                    };
                    break;
                default:
                    break;
            }

            return rule;
        }

        /**
         * 账号登录
         *
         * @param {Object} data - 表单post数据
         * @return {Boolean} - 返回登录结果
         */
        async accountLogin(data) {
            let result = false;
            try {
                // 验证数据
                const rule = this.rule('login');
                this.ctx.validate(rule, data);

                // 查找项目数据
                const projectData = await this.ctx.service.project.getProjectByCode(data.project.toString());
                if (projectData === null) {
                    throw '不存在项目数据';
                }

                // 查找对应数据
                const accountData = await this.db.get(this.tableName, {
                    account: data.account,
                    project_id: projectData.id,
                });

                if (accountData === null) {
                    throw '不存在对应用户数据';
                }

                // 判断密码
                if (accountData.is_admin === 1) {
                    // 管理员则用sso通道判断
                    const sso = new SSO(this.ctx);
                    result = await sso.loginValid(data.account, data.project_password.toString());
                } else {
                    // 加密密码
                    const encryptPassword = crypto.createHmac('sha1', data.account).update(data.project_password)
                        .digest().toString('base64');
                    result = encryptPassword === accountData.password;
                }

                // 如果成功则更新登录时间
                if (result) {
                    const updateData = {
                        last_login: new Date().getTime() / 1000,
                    };
                    await this.update(updateData, { id: accountData.id });
                }
            } catch (error) {
                console.log(error);
                result = false;
            }

            return result;
        }
    }

    return ProjectAccount;
};