import type { SuaveplanErrorOptions } from "@suaveplan/error";
import { defineCodes, SuaveplanError } from "@suaveplan/error";

/**
 * Frozen registry of every code emitted by `create-suaveplan-plugin`.
 *
 * Each value is namespaced as `SCAFFOLD.<REASON>` and the registry itself
 * is frozen at module-load time so consumers can rely on `instanceof` plus
 * literal-typed `code` for exhaustive switches.
 */
export const SCAFFOLD_CODES = defineCodes("SCAFFOLD", [
    "INVALID_NAME",
    "DIRECTORY_EXISTS",
    "WRITE_FAILED",
    "UNKNOWN_ENGINE",
] as const);

export type ScaffoldErrorCode =
    (typeof SCAFFOLD_CODES)[keyof typeof SCAFFOLD_CODES];

/**
 * Typed error for every `create-suaveplan-plugin` failure path.
 *
 * Extends `SuaveplanError` with a literal code drawn from
 * `SCAFFOLD_CODES`, so consumers can `instanceof ScaffoldError` and then
 * narrow on `.code` without losing exhaustiveness.
 */
export class ScaffoldError extends SuaveplanError<ScaffoldErrorCode> {
    public constructor(
        code: ScaffoldErrorCode,
        messageKey: string,
        options?: SuaveplanErrorOptions
    ) {
        super(code, messageKey, options);
        this.name = "ScaffoldError";
    }
}