const LDAPBase = require('../LDAPBase')
const LDAP = require('ldapjs')

class GroupModel extends LDAPBase {
    static get services() {
        return [...super.services, 'configs', 'ldap_server', 'models']
    }

    static get schema() {
        return {
            role: String,
            user_ids: [String],
            name: String,
            active: {type: Boolean, default: true},
            ldap_visible: {type: Boolean, default: true},
        }
    }

    async to_api() {
        return {
            id: this.id,
            role: this.role,
            user_ids: this.user_ids,
            name: this.name,
            ldap_visible: this.ldap_visible,
        }
    }

    get dn() {
        return LDAP.parseDN(`cn=${this.name},${this.ldap_server.group_dn().format(this.configs.get('ldap:server.format'))}`)
    }

    async users() {
        const User = this.models.get('auth:User')
        return User.find({
            $or: [
                { _id: { $in: this.user_ids.map(x => this.constructor.to_object_id(x)) } },
                { roles: this.role },
            ],
        })
    }

    async to_ldap() {
        const users = await this.users()
        return {
            cn: this.name,
            dn: this.dn.format(this.configs.get('ldap:server.format')),
            objectClass: 'groupOfNames',
            member: users.map(x => x.dn.format(this.configs.get('ldap:server.format')))
        }
    }
}

module.exports = exports = GroupModel