import UserEmail from "./UserEmail";
import Model from "../../db/Model";
import Validator from "../../db/Validator";
import MysqlConnectionManager from "../../db/MysqlConnectionManager";
import AddApprovedFieldToUsersTable from "../migrations/AddApprovedFieldToUsersTable";
import config from "config";

export default class User extends Model {
    public static async fromEmail(email: string): Promise<User | null> {
        const users = await this.models<User>(this.select().where('id', UserEmail.select('user_id').where('email', email).first()).first());
        return users.length > 0 ? users[0] : null;
    }

    public static async countAccountsToApprove(): Promise<number> {
        if (!this.isApprovalMode()) return 0;
        return (await this.select('COUNT(*) as c').where('approved', false).execute())
            .results[0]['c'];
    }

    public static async getUsersToApprove(): Promise<User[]> {
        if (!this.isApprovalMode()) return [];
        return await this.models<User>(this.select('users.*', 'ue.email as main_email')
            .where('approved', false)
            .leftJoin('user_emails as ue').on('ue.user_id', 'users.id')
            .where('ue.main', '1'));
    }

    public static isApprovalMode(): boolean {
        return config.get<boolean>('approval_mode') && MysqlConnectionManager.hasMigration(AddApprovedFieldToUsersTable);
    }

    public static async getAdminAccounts(): Promise<User[]> {
        return await this.models<User>(this.select('users.*', '')
            .where('is_admin', true)
            .leftJoin('user_emails as ue').on('ue.user_id', 'users.id')
            .where('ue.main', true));
    }

    public name?: string;
    public approved: boolean = false;
    public is_admin: boolean = false;
    public created_at?: Date;
    public updated_at?: Date;

    protected defineProperties(): void {
        this.defineProperty<string>('name', new Validator().acceptUndefined().between(3, 64));
        if (User.isApprovalMode()) this.defineProperty<boolean>('approved', new Validator().defined());
        this.defineProperty<boolean>('is_admin', new Validator().defined());

        this.defineProperty<Date>('created_at');
        this.defineProperty<Date>('updated_at');
    }

    public isApproved(): boolean {
        return !User.isApprovalMode() || this.approved!;
    }
}