import { IsEmail, IsOptional, IsString } from 'class-validator';
import * as jsonwebtoken from 'jsonwebtoken';
import { getConnectionManager } from 'typeorm';
import { PasswordNeededError, UserNotFoundError } from '../../errors/AuthError';
import { UsernameOrEmailNeededError } from '../../errors/UserErrors';
import { Auth } from '../entities/Auth';
import { User } from '../entities/User';

export class CreateAuth {
    @IsOptional()
    @IsString()
    username?: string;
    @IsString()
    password: string;
    @IsOptional()
    @IsEmail()
    @IsString()
    email?: string;

    public async toAuth(): Promise<Auth> {
        let newAuth: Auth = new Auth();

        if (this.email === undefined && this.username === undefined) {
            throw new UsernameOrEmailNeededError();
        }
        if (!this.password) {
            throw new PasswordNeededError()
        }
        const found_users = await getConnectionManager().get().getRepository(User).find({ where: [{ username: this.username }, { email: this.email }] });
        if (found_users.length === 0) {
            throw new UserNotFoundError()
        } else {
            const found_user = found_users[0]
            // TODO: proper jwt creation
            const token = jsonwebtoken.sign({}, "securekey")
            newAuth.access_token = token
            newAuth.refresh_token = token
            newAuth.access_token_expires_at = 1587349200
            newAuth.refresh_token_expires_at = 1587349200

        }
        return newAuth;
    }
}