const db = require('../../plugin/DataBase/db')
const path = require('path')
const Logger = require('../Logger')
const mq = require('../../plugin/mq')
const { mq: mqName } = require('../../plugin/mq/mqPrefix')
const EmailTemplate = require('../../plugin/Email/emailTemplate')

class WorkOrderMcp {
    constructor() {
        this.logger = new Logger(path.join(__dirname, '../logs/MCP.log'), 'INFO')

        this.messageQueue = mqName('runforge_message_queue')

        this.auto_day = [
            { label: '周一', value: 1 },
            { label: '周二', value: 2 },
            { label: '周三', value: 3 },
            { label: '周四', value: 4 },
            { label: '周五', value: 5 },
            { label: '周六', value: 6 },
            { label: '周日', value: 0 }
        ]

        this.area = ["兰花湖校区跑区", "主校区北跑区", "主校区南跑区", "重庆工商大学茶园校区", "随机分配"]

        this.auto_time = [
            { label: '随机分配', value: -1 },
            ...Array.from({ length: 17 }, (_, i) => {
                const hour = i + 7
                return { label: `${hour} ~ ${hour + 1}时`, value: hour }
            })
        ]

        this.autoTimeLabel = (record) => {
            if (record.auto_time === -1) {
                if (record.today_auto_time)
                    return `随机-今日${record.today_auto_time}时`
                return '随机-待分配'
            }
            const match = this.auto_time.find(item => item.value === record.auto_time)
            return match ? match.label : '-'
        }

        this.emailRegex = /^[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,}$/
        this.banEmailList = ['icloud.com']
    }


    async get_account_info({ sender, student_num }) {
        try {
            if ([sender, student_num].some(value => value === '' || value === null || value === undefined))
                return '缺少参数'

            this.logger.info(`MCP接收获取账号信息请求：${sender},student_num:${student_num}`)
            let sql = `
                SELECT 
                    l.name,
                    l.student_num,
                    l.state,
                    l.area,
                    l.auto_time,
                    l.total_num,
                    l.term_num,
                    l.academy_name,
                    l.sex,
                    l.grade_id,
                    l.email,
                    l.auto_run,
                    l.today_auto_time,
                    l.target_count,
                    l.auto_day,
                    l.notice_type
                FROM 
                    lepao_account l
                WHERE 
                    l.student_num = ? AND l.create_user = ?
            `
            const rows = await db.query(sql, [student_num, sender])
            if (!rows || rows.length == 0) return '该账号未被您绑定，无法查看'

            let data = rows[0]
            let returnMsg = `
                姓名:${data.name ?? '未更新，请使用乐跑登录器更新账号信息'};学号：${data.student_num};账号状态：${data.state === 1 ? '正常' : '需使用乐跑登录器更新账号信息'};乐跑跑区：${data.area == '' ? "随机分配" : data.area};自动乐跑状态：${data.auto_run === 1 ? '开启' : '关闭'}
                `
            if (data.auto_run === 1) {
                returnMsg += `自动乐跑时间：${this.autoTimeLabel(data)};`
                returnMsg += `自动乐跑星期：${data.auto_day.slice().sort((a, b) => {
                    if (a === 0) return 1; if (b === 0) return -1; return a - b;
                }).map(day => this.auto_day.find(item => item.value === day)?.label).join(',')};`
            }
            if (data.sex) returnMsg += `性别：${data.sex === 1 ? '男' : '女'};`
            if (data.email) returnMsg += `邮箱：${data.email};`
            if (data.grade) returnMsg += `邮箱：${data.grade};`
            if (data.academy_name) returnMsg += `学院：${data.academy_name};`
            if (data.grade_id) returnMsg += `年级：${data.grade_id}级;`
            if (data.target_count) returnMsg += `目标乐跑次数：${data.target_count};`
            if (data.total_num) returnMsg += `累计乐跑次数：${data.total_num};`
            if (data.notice_type) returnMsg += `通知方式：${data.notice_type};`

            return returnMsg
        } catch (error) {
            this.logger.error(`MCP查询账号信息出错：${error.stack}`)
            return '系统出错，请稍后再试'
        }
    }

    getSemesterTimestamps() {
        const now = new Date()
        const year = now.getFullYear()
        const feb1ThisYear = new Date(year, 1, 1, 0, 0, 0, 0)     // 当年 2-01
        const aug31ThisYear = new Date(year, 7, 31, 0, 0, 0, 0)  // 当年 8-31
        // 下学期：2 月 1 日 ～ 8 月 31 日
        // 上学期：8 月 31 日 ～ 次年 2 月 1 日
        // 1 月属于上一年的上学期
        return [(now >= feb1ThisYear && now < aug31ThisYear) ? feb1ThisYear.getTime() : new Date(now < feb1ThisYear ? year - 1 : year, 7, 31, 0, 0, 0, 0).getTime(), now.getTime() + 86400000]
      }

    async unbind_account({ sender, student_num }) {
        try {
            if ([sender, student_num].some(value => value === '' || value === null || value === undefined))
                return '缺少参数'

            this.logger.info(`工单MCP接收解绑账号请求：${sender}`)
            let selectSql = `SELECT create_user, auto_run, update_time FROM lepao_account WHERE student_num = ? AND create_user IS NOT NULL`
            let selectRows = await db.query(selectSql, [student_num])
            if (!selectRows || selectRows.length === 0 || !selectRows[0]?.create_user) return '该账号未绑定，无需解绑'

            if (selectRows[0].auto_run === 1) return '该账号已开启自动乐跑，请用原绑定账号关闭自动乐跑后再解绑或联系人工客服处理'
            if (selectRows[0].update_time && selectRows[0].update_time > this.getSemesterTimestamps()[0]) return '该账号在本学期存在更新记录，请等待人工处理'
            let updateSql = `UPDATE lepao_account SET create_user = NULL, auto_run = 0, update_time = ? WHERE student_num = ?`
            let updateRows = await db.query(updateSql, [Date.now(), student_num])
            if (!updateRows || updateRows.affectedRows !== 1)
                return '系统出错，请稍后再试'
            return `解绑成功，您现在可绑定该账号`
        } catch (error) {
            this.logger.error(`工单MCP解绑账号出错：${error.stack}`)
            return '系统出错，请稍后再试'
        }
    }

    async need_manual({ sender, order_id }) {
        try {
            if ([sender, order_id].some(value => value === '' || value === null || value === undefined))
                return '缺少参数'

            this.logger.info(`MCP接收转人工服务请求：${order_id}`)

            const selectSql = 'SELECT msg, state, email, need_manual FROM work_order WHERE id = ? AND create_user = ?'
            const selectRows = await db.query(selectSql, [order_id, sender])
            if (!selectRows || selectRows.length !== 1)
                return '未找到你创建的工单，请核对工单ID'
            if (selectRows[0].state === 2) return '工单已关闭，无法提交转人工服务,请提交新工单'
            if (selectRows[0].need_manual === 1) return '该工单已提交转人工服务，无需重复提交'
            
            msg = selectRows[0].msg
            msg.push({
                time: Date.now(),
                content: '人工处理请求已提交，请耐心等待人工客服处理',
                uuid: 'e4fe0277-0b1a-41a1-b25f-8b6e4cec3281',
                type: 'system'
            })

            let updateSql = `UPDATE work_order SET msg = ?, need_manual = 1, update_time = ? WHERE id = ? AND create_user = ?`
            let updateRows = await db.query(updateSql, [msg, Date.now(), order_id, sender])
            if (!updateRows || updateRows.affectedRows !== 1) return '系统出错，请稍后再试'
            
            return `转人工服务请求已提交，后续消息AI助理小妍将不再回复`
        } catch (error) {
            this.logger.error(`MCP转人工服务出错：${error.stack}`)
            return '系统出错，请稍后再试'
        }
    }
}

const WORKORDERMCP = new WorkOrderMcp()
module.exports.WORKORDERMCP = WORKORDERMCP