package cabret

import (
	"io/fs"
	"path/filepath"

	"github.com/aziis98/cabret/path"
	"golang.org/x/exp/slices"
)

func FindFiles(excludePatterns ...string) ([]string, error) {
	// TODO: Use [filepath.Glob] instead of [*path.Pattern]

	concreteExcludePatterns := []*path.Pattern{}
	for _, rawPattern := range excludePatterns {
		pattern, err := path.ParsePattern(rawPattern)
		if err != nil {
			return nil, err
		}

		concreteExcludePatterns = append(concreteExcludePatterns, pattern)
	}

	paths := []string{}

	if err := filepath.Walk(".", func(p string, info fs.FileInfo, err error) error {
		if info.IsDir() {
			return nil
		}

		if slices.ContainsFunc(concreteExcludePatterns, func(pattern *path.Pattern) bool {
			ok, _, _ := pattern.Match(p)
			return ok
		}) {
			return nil
		}

		paths = append(paths, p)
		return nil
	}); err != nil {
		return nil, err
	}

	return paths, nil
}