import Model from "swaf/db/Model";
import Controller from "swaf/Controller";
import config from "config";
import User from "swaf/auth/models/User";
import {Request} from "express";
import URLRedirect from "./URLRedirect";

export default class FileModel extends Model {
    public static get table(): string {
        return 'files';
    }

    public static async getBySlug(slug: string): Promise<FileModel | null> {
        return await this.select().where('slug', slug).first();
    }

    public static async paginateForUser(req: Request, perPage: number, user_id: number): Promise<FileModel[]> {
        req.params.sortBy = 'created_at';
        req.params.sortDirection = 'DESC';
        return await this.paginate(req, perPage, this.select().where('user_id', user_id));
    }

    public id?: number = undefined;
    public readonly user_id?: number = undefined;
    public readonly slug?: string = undefined;
    public readonly real_name?: string = undefined;
    public readonly storage_type?: FileStorage = undefined;
    public readonly storage_path?: string = undefined;
    public readonly size?: number = undefined;
    public created_at?: Date = undefined;
    public expires_at?: Date | null = undefined;

    /**
     * @deprecated
     */
    public ttl?: number = undefined;

    protected init(): void {
        this.setValidation('user_id').defined().exists(User, 'id');
        this.setValidation('slug').defined().minLength(1).maxLength(259)
            .unique(this, 'slug')
            .unique(URLRedirect, 'slug');
        this.setValidation('real_name').defined().minLength(1).maxLength(259);
        this.setValidation('storage_type').defined().maxLength(64);
        this.setValidation('storage_path').defined().maxLength(1745);
        this.setValidation('size').defined().min(0);
    }

    public getURL(domain: string = config.get<string>('public_url')): string {
        return (/^https?:\/\//.test(domain) ? '' : 'https://') + domain + Controller.route('get-file', {
            slug: this.getOrFail('slug'),
        });
    }

    public shouldBeDeleted(): boolean {
        const expirationDate = this.expires_at;
        if (!expirationDate) return false;
        return new Date().getTime() >= expirationDate.getTime();
    }

    public canDelete(user_id: number): boolean {
        return this.user_id === user_id;
    }
}

export type FileStorage = 'local';