import { existsSync } from "fs";
import { join } from "path";
import { PROJECT_MARKERS } from "../types/index.ts";

/**
 * Detect the project type based on marker files
 */
export async function detectProjectMarker(path: string): Promise<string | null> {
  for (const marker of Object.keys(PROJECT_MARKERS)) {
    const markerPath = join(path, marker);
    if (existsSync(markerPath)) {
      return marker;
    }
  }
  return null;
}

/**
 * Get the human-readable project type
 */
export function getProjectTypeName(marker: string | null): string {
  if (!marker) return "Unknown";
  return PROJECT_MARKERS[marker] ?? "Unknown";
}

/**
 * Check if a directory is likely a project (has marker files or is a git repo)
 */
export async function isLikelyProject(path: string): Promise<boolean> {
  // Check for .git directory
  if (existsSync(join(path, ".git"))) {
    return true;
  }

  // Check for project markers
  for (const marker of Object.keys(PROJECT_MARKERS)) {
    if (existsSync(join(path, marker))) {
      return true;
    }
  }

  return false;
}