import User from "./User";
import {Connection} from "mysql";
import Model, {EMAIL_REGEX, ModelCache} from "../../db/Model";
import Validator from "../../db/Validator";
import {query} from "../../db/MysqlConnectionManager";

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

    public user_id?: number;
    public email?: string;
    private main?: boolean;
    public created_at?: Date;

    private wasSetToMain: boolean = false;

    constructor(data: any) {
        super(data);
    }

    protected defineProperties(): void {
        this.defineProperty<number>('user_id', new Validator().acceptUndefined().exists(User, 'id'));
        this.defineProperty<string>('email', new Validator().defined().regexp(EMAIL_REGEX).unique(this));
        this.defineProperty<boolean>('main', new Validator().defined());
        this.defineProperty<Date>('created_at', new Validator());
    }

    async beforeSave(exists: boolean, connection: Connection) {
        if (this.wasSetToMain) {
            await query(`UPDATE ${this.table} SET main=false WHERE user_id=${this.user_id}`, null, connection);
        }
    }

    protected async afterSave(): Promise<void> {
        if (this.wasSetToMain) {
            this.wasSetToMain = false;
            const emails = ModelCache.all(this.table);
            if (emails) {
                for (const id in emails) {
                    const otherEmail = emails[id];
                    if (otherEmail.id !== this.id && otherEmail.user_id === this.user_id) {
                        otherEmail.main = false;
                    }
                }
            }
        }
    }

    public isMain(): boolean {
        return !!this.main;
    }

    public setMain() {
        if (!this.isMain()) {
            this.main = true;
            this.wasSetToMain = true;
        }
    }
}