const API = require('../../../../lib/API.js')
const { BaseStdResponse } = require('../../../../BaseStdResponse.js')
const AccessControl = require('../../../../lib/AccessControl.js')
const db = require('../../../../plugin/DataBase/db.js')
const Redis = require('../../../../plugin/DataBase/Redis.js')
const QgProxyManager = require('../../../../lib/Lepao/QgProxyManager')

class AdminLepaoProxyConfig extends API {
    constructor() {
        super()

        this.setPath('/Admin/Lepao/Proxy/Config')
        this.setMethod('POST')
    }

    async onRequest(req, res) {
        const {
            uuid,
            session,
            proxy_enabled,
            area,
            area_ex,
            isp,
            distinct_extract,
            invalidate_cache
        } = req.body

        if ([uuid, session].some(v => v === '' || v == null) || proxy_enabled === undefined || proxy_enabled === null)
            return res.json({ ...BaseStdResponse.MISSING_PARAMETER })

        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('service'))
            return res.json({ ...BaseStdResponse.PERMISSION_DENIED })

        const enabled =
            proxy_enabled === true || proxy_enabled === 1 || proxy_enabled === '1' ? 1 : 0
        const areaStr = area == null ? '' : String(area).trim()
        const areaExStr = area_ex == null ? '' : String(area_ex).trim()
        let ispVal = null
        if (isp !== '' && isp !== undefined && isp !== null) {
            const n = Number(isp)
            if (n === 1 || n === 2 || n === 3) ispVal = n
        }
        const distinct = Number(distinct_extract) === 0 ? 0 : 1
        const now = Date.now()

        try {
            await QgProxyManager.ensureSettingsRow()
            await db.query(
                `UPDATE lepao_proxy_settings SET proxy_enabled = ?, area = ?, area_ex = ?, isp = ?, distinct_extract = ?, updated_at = ? WHERE id = 1`,
                [enabled, areaStr, areaExStr, ispVal, distinct, now]
            )

            if (invalidate_cache === true || invalidate_cache === 1 || invalidate_cache === '1') {
                await Redis.del(QgProxyManager.REDIS_CURRENT)
            }

            await QgProxyManager.recordLog({
                event: 'config_change',
                detail: {
                    proxy_enabled: enabled,
                    area: areaStr,
                    area_ex: areaExStr,
                    isp: ispVal,
                    distinct_extract: distinct,
                    invalidate_cache: !!invalidate_cache,
                    operator: uuid
                }
            })

            return res.json({ ...BaseStdResponse.OK })
        } catch (e) {
            this.logger?.error?.(`AdminLepaoProxyConfig: ${e.stack || e}`)
            return res.json({ ...BaseStdResponse.ERR, msg: '保存配置失败' })
        }
    }
}

module.exports.AdminLepaoProxyConfig = AdminLepaoProxyConfig