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

function parseDetail(value) {
    if (value === null || value === undefined || value === '') return null
    if (typeof value === 'object') return value
    try {
        return JSON.parse(value)
    } catch {
        return null
    }
}

class AdminBindAuditList extends API {
    constructor() {
        super()
        this.setPath('/Admin/Lepao/BindAudit/List')
        this.setMethod('GET')
    }

    async onRequest(req, res) {
        let {
            uuid,
            session,
            student_num,
            owner_uuid,
            operator_uuid,
            action,
            source,
            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 (student_num) {
            where.push('lba.student_num COLLATE utf8mb4_general_ci LIKE (CONVERT(? USING utf8mb4) COLLATE utf8mb4_general_ci)')
            params.push(`%${student_num}%`)
            countParams.push(`%${student_num}%`)
        }
        if (owner_uuid) {
            where.push('lba.owner_uuid COLLATE utf8mb4_general_ci = (CONVERT(? USING utf8mb4) COLLATE utf8mb4_general_ci)')
            params.push(owner_uuid)
            countParams.push(owner_uuid)
        }
        if (operator_uuid) {
            where.push('lba.operator_uuid COLLATE utf8mb4_general_ci = (CONVERT(? USING utf8mb4) COLLATE utf8mb4_general_ci)')
            params.push(operator_uuid)
            countParams.push(operator_uuid)
        }
        if (action) {
            where.push('lba.action COLLATE utf8mb4_general_ci = (CONVERT(? USING utf8mb4) COLLATE utf8mb4_general_ci)')
            params.push(action)
            countParams.push(action)
        }
        if (source) {
            where.push('lba.source COLLATE utf8mb4_general_ci = (CONVERT(? USING utf8mb4) COLLATE utf8mb4_general_ci)')
            params.push(source)
            countParams.push(source)
        }
        if (Array.isArray(queryTime) && queryTime.length === 2) {
            where.push('lba.created_at >= ? AND lba.created_at < ?')
            params.push(queryTime[0], queryTime[1])
            countParams.push(queryTime[0], queryTime[1])
        }

        const whereSql = where.join(' AND ')
        const listSql = `
            SELECT
                lba.id,
                lba.student_num,
                lba.owner_uuid,
                lba.action,
                lba.source,
                lba.operator_uuid,
                lba.detail_json,
                lba.created_at,
                la.name AS lepao_name,
                la.user_avatar AS lepao_avatar,
                owner_u.username AS owner_username,
                owner_u.avatar AS owner_avatar,
                op_u.username AS operator_username,
                op_u.avatar AS operator_avatar
            FROM lepao_bind_audit lba
            LEFT JOIN lepao_account la ON la.student_num COLLATE utf8mb4_general_ci = lba.student_num COLLATE utf8mb4_general_ci
            LEFT JOIN users owner_u ON owner_u.uuid COLLATE utf8mb4_general_ci = lba.owner_uuid COLLATE utf8mb4_general_ci
            LEFT JOIN users op_u ON op_u.uuid COLLATE utf8mb4_general_ci = lba.operator_uuid COLLATE utf8mb4_general_ci
            WHERE ${whereSql}
            ORDER BY lba.id DESC
            LIMIT ? OFFSET ?
        `
        const countSql = `SELECT COUNT(*) AS total FROM lepao_bind_audit lba 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 })

        const data = rows.map(item => ({
            ...item,
            detail_json: parseDetail(item.detail_json)
        }))

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

module.exports.AdminBindAuditList = AdminBindAuditList