/**
 * File operations and JSON traversal utilities
 */

import type { StringLocation } from './types.js';

/**
 * Extract all string values from a JSON object with their paths
 */
export function extractStrings(obj: unknown, path = ''): StringLocation[] {
  const results: StringLocation[] = [];

  if (typeof obj === 'string' && obj.length > 10) {
    results.push({ path, value: obj });
  } else if (Array.isArray(obj)) {
    obj.forEach((item, index) => {
      results.push(...extractStrings(item, `${path}[${index}]`));
    });
  } else if (typeof obj === 'object' && obj !== null) {
    for (const [key, value] of Object.entries(obj)) {
      if (key.startsWith('_')) continue;
      results.push(...extractStrings(value, path ? `${path}.${key}` : key));
    }
  }

  return results;
}

/**
 * Set a value at a nested path in an object
 */
export function setNestedValue(obj: Record<string, unknown>, path: string, value: string): void {
  const parts = path.replace(/\[(\d+)\]/g, '.$1').split('.');
  let current: unknown = obj;

  for (let i = 0; i < parts.length - 1; i++) {
    const part = parts[i];
    if (current && typeof current === 'object') {
      current = (current as Record<string, unknown>)[part];
    }
  }

  if (current && typeof current === 'object') {
    const lastPart = parts[parts.length - 1];
    (current as Record<string, unknown>)[lastPart] = value;
  }
}