package main

import (
	"fmt"
	"log"
	"os"
	"path/filepath"

	"github.com/gobwas/glob"
)

func main() {
	// Default values
	var targetDir string
	var pattern string

	// Check if running from command line (has arguments)
	if len(os.Args) > 1 {
		// Command line mode: use current directory and pattern from args
		targetDir = "."
		pattern = os.Args[1]
		fmt.Printf("Command line mode: searching for pattern '%s' in current directory\n", pattern)
	} else {
		// VS Code/IDE mode: use hardcoded values
		targetDir = `C:\Users\jalgaba\repos\sia-sipa-enlace`
		pattern = "nbproject/**"
		fmt.Printf("IDE mode: searching for pattern '%s' in %s\n", pattern, targetDir)

		// Change to the target directory
		err := os.Chdir(targetDir) //Change working directory
		if err != nil {
			log.Fatalf("failed to change directory to %s: %v", targetDir, err)
		}
		targetDir = "." // Now use current directory after chdir
	}

	// Compile the glob pattern
	compiledPattern, err := glob.Compile(pattern)
	if err != nil {
		log.Fatalf("failed to compile glob pattern '%s': %v", pattern, err)
	}

	// Walk the directory tree
	err = filepath.Walk(targetDir, func(path string, info os.FileInfo, err error) error {
		if err != nil {
			return err
		}

		// Get relative path for pattern matching
		// We need relative paths because glob patterns like "nbproject/**"
		// are relative, not absolute paths
		var relPath string
		if targetDir == "." {
			// When walking from current directory ".", filepath.Walk already
			// gives us relative paths like "file.txt" or "subfolder/file.txt"
			relPath = path
		} else {
			// When walking from an absolute path like "/home/user/project",
			// filepath.Walk gives us absolute paths, so we need to convert
			// them back to relative paths for pattern matching
			var err error
			relPath, err = filepath.Rel(targetDir, path)
			if err != nil {
				return err
			}
		}

		// Normalize path separators and skip root directory
		clean := filepath.ToSlash(relPath)
		if clean == "." {
			return nil
		}

		// Test against pattern
		if compiledPattern.Match(clean) {
			fmt.Println(clean)
		}
		return nil
	})
	if err != nil {
		log.Fatalf("error walking path: %v", err)
	}
}