package main

import (
	"fmt"
	"os"
	"path/filepath"
	"sort"
	"strings"
)

// printTree renders the entry tree under sub in the same shape pass does (via
// `tree`): directories and entries sorted together, `.gpg` suffixes stripped,
// dotfiles hidden.
func printTree(s *store, sub string) error {
	root := filepath.Join(s.dir, sub)
	if fi, err := os.Stat(root); err != nil || !fi.IsDir() {
		return errf("Error: %s is not in the password store.", sub)
	}
	if sub == "" {
		fmt.Println("Password Store")
	} else {
		fmt.Println(sub)
	}
	return printBranch(root, "")
}

func printBranch(dir, prefix string) error {
	ents, err := os.ReadDir(dir)
	if err != nil {
		return err
	}

	var items []os.DirEntry
	for _, e := range ents {
		if strings.HasPrefix(e.Name(), ".") {
			continue
		}
		if !e.IsDir() && !strings.HasSuffix(e.Name(), ".gpg") {
			continue
		}
		items = append(items, e)
	}
	sort.Slice(items, func(i, j int) bool { return items[i].Name() < items[j].Name() })

	for i, e := range items {
		last := i == len(items)-1
		branch, extend := "├── ", "│   "
		if last {
			branch, extend = "└── ", "    "
		}
		name := e.Name()
		if !e.IsDir() {
			name = strings.TrimSuffix(name, ".gpg")
		}
		fmt.Println(prefix + branch + name)
		if e.IsDir() {
			if err := printBranch(filepath.Join(dir, e.Name()), prefix+extend); err != nil {
				return err
			}
		}
	}
	return nil
}