/**
 * Typed errors for the WayForPay client. Lets the MCP server's `fail()` helper
 * surface a structured response (status / transactionType / api body) instead
 * of an opaque string.
 */

export interface WfpErrorOptions {
	status: number;
	transactionType?: string;
	apiError?: unknown;
	cause?: unknown;
}

export class WfpError extends Error {
	readonly status: number;
	readonly transactionType: string | undefined;
	readonly apiError: unknown;
	override readonly cause: unknown;

	constructor(message: string, opts: WfpErrorOptions) {
		super(message);
		this.name = "WfpError";
		this.status = opts.status;
		this.transactionType = opts.transactionType;
		this.apiError = opts.apiError;
		this.cause = opts.cause;
	}
}

/**
 * Distinguishes "WFP rejected the merchantSignature / secretKey" from generic
 * API failures so callers can prompt the user to fix credentials specifically.
 */
export class WfpAuthError extends WfpError {
	constructor(message: string, opts: WfpErrorOptions) {
		super(message, opts);
		this.name = "WfpAuthError";
	}
}