const API = require("../../../lib/API")
const db = require("../../../plugin/DataBase/db")
const AccessControl = require("../../../lib/AccessControl")
const { BaseStdResponse } = require("../../../BaseStdResponse")
const { fetchUniLoginProfile, normalizeSocialType } = require('../../../lib/UniLoginClient')
const {
    getBindingByIdentity,
    getUserSocialBindings,
    insertSocialBinding,
    updateSocialBindingProfile,
    toSocialBindingSummary
} = require('../../../lib/UserSocialBinding')

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

        this.setPath('/UniLogin/BindSocial')
        this.setMethod('POST')
    }

    async onRequest(req, res) {
        let { uuid, session, type, code } = req.body
        type = normalizeSocialType(type)

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

        if (!type)
            return res.json({
                ...BaseStdResponse.ERR,
                msg: '不支持的第三方账号类型'
            })

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

        try {
            const { social_uid, nickname, faceimg } = await fetchUniLoginProfile(type, code)
            const identityBinding = await getBindingByIdentity(type, social_uid)

            if (identityBinding && identityBinding.user_uuid !== uuid)
                return res.json({
                    ...BaseStdResponse.ERR,
                    msg: '该第三方账号已绑定其他用户'
                })

            const bindings = await getUserSocialBindings(uuid)
            if (bindings.some(binding => binding.social_type === type))
                return res.json({
                    ...BaseStdResponse.ERR,
                    msg: `当前账号已绑定${type === 'qq' ? 'QQ' : '微信'}`
                })

            const result = await insertSocialBinding(uuid, type, social_uid, nickname, faceimg)
            if (!result || result.affectedRows !== 1)
                return res.json({
                    ...BaseStdResponse.ERR,
                    msg: '绑定失败，请稍后再试'
                })
            await updateSocialBindingProfile(type, social_uid, nickname, faceimg)

            await db.query(
                'UPDATE users SET nickname = COALESCE(NULLIF(nickname, ""), ?), avatar = COALESCE(NULLIF(avatar, ""), ?) WHERE uuid = ?',
                [nickname, faceimg, uuid]
            )

            const newBindings = await getUserSocialBindings(uuid)
            return res.json({
                ...BaseStdResponse.OK,
                data: {
                    socialBindings: toSocialBindingSummary(newBindings),
                    boundTypes: newBindings.map(binding => binding.social_type)
                }
            })
        } catch (error) {
            this.logger.error(`绑定第三方账号失败！${error.message || error}`)
            return res.json({
                ...BaseStdResponse.ERR,
                msg: '绑定失败，请稍后再试'
            })
        }
    }
}

module.exports.BindSocial = BindSocial