import type { Command } from "./types";

/**
 * Type-safe helper to create a command definition.
 * 
 * @param command The command definition
 * @returns The command object
 */
export function createCommand(command: Command): Command {
    return command;
}

/**
 * JSON Replacer function for serialization
 * Handles safe serialization of BigInt values to strings
 */
export const jsonReplacer = (_key: string, value: unknown): unknown => {
    if (typeof value === 'bigint') {
        return value.toString();
    }
    return value;
};

/**
 * Deep merge utility
 */
export function deepMerge(target: any, source: any): any {
    if (typeof target !== 'object' || target === null) {
        return source;
    }
    if (typeof source !== 'object' || source === null) {
        return source;
    }

    const output = { ...target };

    Object.keys(source).forEach(key => {
        if (source[key] && typeof source[key] === 'object' && !Array.isArray(source[key])) {
            if (!(key in target)) {
                Object.assign(output, { [key]: source[key] });
            } else {
                output[key] = deepMerge(target[key], source[key]);
            }
        } else {
            Object.assign(output, { [key]: source[key] });
        }
    });

    return output;
}