music-library/bool_func_utils.go

package main

import (
	"errors"
	"fmt"
	"io/fs"
	"os"
	"path/filepath"
	"strings"
)

func AbsPath(path string) string {
	if filepath.IsAbs(path) {
		return path
	}

	absSource, err := filepath.Abs(path)
	if err != nil {
		panic(err)
	}

	return absSource
}

func Exists(path string) bool {
	_, err := os.Lstat(path)
	return !errors.Is(err, fs.ErrNotExist)
}

func SymlinkFilesOnly(path string) bool {
	stat, err := os.Lstat(path)
	if err != nil {
		return false
	}

	isSymlink := stat.Mode().Type()&os.ModeSymlink == os.ModeSymlink
	return isSymlink && !stat.IsDir()
}

func VideosOnly(path string) bool {
	streams, err := GetStreamsFromFile(path)
	fmt.Println("VIDEOS_ONLY", "DEBUG", streams, err)
	return err == nil && strings.Contains(streams, "video")
}

func Not[T any](f func(T) bool) func(T) bool {
	return func(t T) bool { return !f(t) }
}

func And[T any](functions ...func(T) bool) func(T) bool {
	return func(t T) bool {
		for _, f := range functions {
			if !f(t) {
				return false
			}
		}
		return true
	}
}

func Or[T any](functions ...func(T) bool) func(T) bool {
	return func(t T) bool {
		for _, f := range functions {
			if f(t) {
				return true
			}
		}
		return false
	}
}