export class StoccaTreError {
    public message: string;
    private statusCode: number = 500;

    constructor(message: string, status: number = 500) {
        this.message = message;
        this.statusCode = 500;
        this.status = status;
    }

    qualified(qualification: string): this {
        const insertionPoint = qualification.indexOf("$err");
        this.message = insertionPoint !== -1
            ? `${qualification.slice(0, insertionPoint)}${this.message}${qualification.slice(insertionPoint + 4)}`
            : `${qualification}${this.message}`;
        return this;
    }

    get status(): number {
        return this.statusCode;
    }

    set status(code: number) {
        if (code >= 100 && code < 600) {
            this.statusCode = code;
        }
    }

    withStatus(code: number): this {
        this.status = code;
        return this;
    }
}

export type Result<T> = [error: undefined, just: T] | [error: StoccaTreError, just?: undefined];