const createError = (name: string, statusCode: number, defaultMessage: string) => {
    return class extends Error {
        readonly statusCode = statusCode;
        readonly code = name;
        constructor(message = defaultMessage) {
            super(message);
            this.name = name;
            Object.setPrototypeOf(this, new.target.prototype);
        }
    };
};

export const UserNotFoundError = createError("UserNotFoundError", 404, "User was not found.");
export const PostNotFoundError = createError("PostNotFoundError", 404, "Post was not found.");
export const BlogNotFoundError = createError("BlogNotFoundError", 404, "Blog was not found.");
export const UserEmailExistsError = createError("UserEmailExistsError", 409, "There already is a user with that email.");
export const InvalidPasswordError = createError("InvalidPasswordError", 401, "Incorrect password.");
export const InvalidLoginError = createError("InvalidLoginError", 401, "User does not exist or password is incorrect.");
export const UnauthorizedError = createError("UnauthorizedError", 401, "Unauthorized.");
export const ForbiddenError = createError("ForbiddenError", 403, "Forbidden.");
export const SubdomainAlreadyUsedError = createError("SubdomainAlreadyUsedError", 409, "There's already someone using that subdomain.");
export const InvalidSessionError = createError("InvalidSessionError", 401, "Session invalid or expired.");