drivefs/path.go

package drivefs

import (
	"iter"
	"path"
	"slices"
	"strings"

	"sirherobrine23.com.br/Sirherobrine23/drivefs/internal/slice"
)

type pathSplit [2]string

func (p pathSplit) Path() string { return p[0] }
func (p pathSplit) Name() string { return p[1] }

type pathManipulate string

// Clean path and fix slash's
func (p pathManipulate) CleanPath() string {
	return strings.Trim(path.Clean(strings.ReplaceAll(string(p), "\\", "/")), "/")
}

// convert all '/' to "%2f"
func (p pathManipulate) EscapeName() string {
	return strings.Join(strings.Split(string(p), "/"), "%%2f")
}

// Check if path is folder
func (p pathManipulate) IsSubFolder() bool { return len(p.SplitPath()) > 1 }

// Check if path is '.' or '/'
func (p pathManipulate) IsRoot() bool {
	return (!p.IsSubFolder()) && slices.Contains([]string{".", "/"}, p.CleanPath())
}

// Return slice with this [][path(string), filename(string)]
func (p pathManipulate) SplitPath() slice.Slice[pathSplit] {
	nodes := slice.Slice[pathSplit]{}
	for path, name := range p.SplitPathSeq() {
		nodes.Push(pathSplit{path, name})
	}
	return nodes
}

// Return iter.Seq2[path(string), filename(string)]
func (p pathManipulate) SplitPathSeq() iter.Seq2[string, string] {
	return func(yield func(path string, name string) bool) {
		lastNode := pathSplit{}
		for name := range strings.SplitSeq(p.CleanPath(), "/") {
			lastNode[1], lastNode[0] = name, path.Join(lastNode.Path(), strings.ReplaceAll(name, "%%2f", "/"))
			if !yield(lastNode.Path(), lastNode.Name()) {
				return
			}
		}
	}
}