import { getVersion } from "../utils/getVersion.js";

export type ErrorType<name extends string = "Error"> = Error & { name: name };

type BaseErrorParameters = {
    cause?: BaseError | Error | undefined;
    details?: string | undefined;
    metaMessages?: string[] | undefined;
    name?: string | undefined;
};

export type BaseErrorType = BaseError & { name: "RenegadeCoreError" };
export class BaseError extends Error {
    details: string;
    metaMessages?: string[] | undefined;
    shortMessage: string;

    override name = "RenegadeCoreError";
    get version() {
        return getVersion();
    }

    constructor(shortMessage: string, args: BaseErrorParameters = {}) {
        super();

        const details =
            args.cause instanceof BaseError
                ? args.cause.details
                : args.cause?.message
                  ? args.cause.message
                  : args.details!;

        this.message = [
            shortMessage || "An error occurred.",
            "",
            ...(args.metaMessages ? [...args.metaMessages, ""] : []),
            ...(details ? [`Details: ${details}`] : []),
            `Version: ${this.version}`,
        ].join("\n");

        if (args.cause) this.cause = args.cause;
        this.details = details;
        this.metaMessages = args.metaMessages;
        this.shortMessage = shortMessage;
    }

    walk(fn?: (err: unknown) => boolean) {
        return this.#walk(this, fn);
    }

    #walk(err: unknown, fn?: (err: unknown) => boolean): unknown {
        if (fn?.(err)) return err;
        if ((err as Error).cause) return this.#walk((err as Error).cause, fn);
        return err;
    }
}

export type ConfigRequiredErrorType = ConfigRequiredError & {
    name: "ConfigRequiredError";
};

export class ConfigRequiredError extends BaseError {
    override name = "ConfigRequiredError";
    constructor(fn: string) {
        super(`${fn} requires a config`);
    }
}