const API = require("../../../lib/API.js")
const db = require("../../../plugin/DataBase/db.js")
const { BaseStdResponse } = require("../../../BaseStdResponse.js")
const AccessControl = require("../../../lib/AccessControl.js")

class AdminPowerTaskList extends API {
    constructor() {
        super()
        this.setPath('/Admin/Power/Task/List')
        this.setMethod('GET')
    }

    async onRequest(req, res) {
        let {
            uuid,
            session,
            create_user,
            username,
            email,
            area,
            building,
            room,
            queryTime,
            pagesize,
            current
        } = req.query

        if ([uuid, session, pagesize, current].some(v => v === '' || v === null || v === undefined))
            return res.json({ ...BaseStdResponse.MISSING_PARAMETER })
        if (isNaN(pagesize) || Number(pagesize) <= 0 || isNaN(current) || Number(current) <= 0)
            return res.json({ ...BaseStdResponse.ERR, msg: '参数错误' })

        if (!await AccessControl.checkSession(uuid, session))
            return res.status(401).json({ ...BaseStdResponse.ACCESS_DENIED })

        const permission = await AccessControl.getPermission(uuid)
        if (!permission.includes('admin') && !permission.includes('server') && !permission.includes('service'))
            return res.json({ ...BaseStdResponse.PERMISSION_DENIED })

        const offset = (Number(current) - 1) * Number(pagesize)
        const where = ['1 = 1']
        const params = []
        const countParams = []

        if (create_user) {
            where.push('pt.create_user COLLATE utf8mb4_general_ci = (CONVERT(? USING utf8mb4) COLLATE utf8mb4_general_ci)')
            params.push(create_user)
            countParams.push(create_user)
        }
        if (username) {
            where.push('u.username COLLATE utf8mb4_general_ci LIKE (CONVERT(? USING utf8mb4) COLLATE utf8mb4_general_ci)')
            params.push(`%${username}%`)
            countParams.push(`%${username}%`)
        }
        if (email) {
            where.push('pt.email COLLATE utf8mb4_general_ci LIKE (CONVERT(? USING utf8mb4) COLLATE utf8mb4_general_ci)')
            params.push(`%${email}%`)
            countParams.push(`%${email}%`)
        }
        if (area) {
            where.push('pt.area COLLATE utf8mb4_general_ci = (CONVERT(? USING utf8mb4) COLLATE utf8mb4_general_ci)')
            params.push(area)
            countParams.push(area)
        }
        if (building) {
            where.push('pt.building COLLATE utf8mb4_general_ci LIKE (CONVERT(? USING utf8mb4) COLLATE utf8mb4_general_ci)')
            params.push(`%${building}%`)
            countParams.push(`%${building}%`)
        }
        if (room) {
            where.push('pt.room COLLATE utf8mb4_general_ci LIKE (CONVERT(? USING utf8mb4) COLLATE utf8mb4_general_ci)')
            params.push(`%${room}%`)
            countParams.push(`%${room}%`)
        }
        if (Array.isArray(queryTime) && queryTime.length === 2) {
            where.push('pt.update_time >= ? AND pt.update_time < ?')
            params.push(queryTime[0], queryTime[1])
            countParams.push(queryTime[0], queryTime[1])
        }

        const whereSql = where.join(' AND ')
        const listSql = `
            SELECT
                pt.id,
                pt.create_user,
                pt.create_time,
                pt.update_time,
                pt.area,
                pt.building,
                pt.room,
                pt.email,
                pt.lowest,
                pt.notes,
                pt.balance,
                pt.koufei_date,
                pt.is_notice,
                u.username,
                u.avatar
            FROM power_task pt
            LEFT JOIN users u ON u.uuid COLLATE utf8mb4_general_ci = pt.create_user COLLATE utf8mb4_general_ci
            WHERE ${whereSql}
            ORDER BY pt.id DESC
            LIMIT ? OFFSET ?
        `
        const countSql = `
            SELECT COUNT(*) AS total
            FROM power_task pt
            LEFT JOIN users u ON u.uuid COLLATE utf8mb4_general_ci = pt.create_user COLLATE utf8mb4_general_ci
            WHERE ${whereSql}
        `
        params.push(String(pagesize), String(offset))

        const rows = await db.query(listSql, params)
        const countRows = await db.query(countSql, countParams)
        if (!rows || !countRows) return res.json({ ...BaseStdResponse.DATABASE_ERR })

        return res.json({
            ...BaseStdResponse.OK,
            data: rows,
            pagination: {
                current: Number(current),
                pagesize: Number(pagesize),
                total: countRows[0]?.total || 0
            }
        })
    }
}

module.exports.AdminPowerTaskList = AdminPowerTaskList