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// Copyright 2020 The Gitea Authors. All rights reserved.
// Use of this source code is governed by a MIT-style
// license that can be found in the LICENSE file.

//go:build !gogit
// +build !gogit

package git

import "code.gitea.io/gitea/modules/log"

// TreeEntry the leaf in the git tree
type TreeEntry struct {
	ID SHA1

	ptree *Tree

	entryMode EntryMode
	name      string

	size     int64
	sized    bool
	fullName string
}

// Name returns the name of the entry
func (te *TreeEntry) Name() string {
	if te.fullName != "" {
		return te.fullName
	}
	return te.name
}

// Mode returns the mode of the entry
func (te *TreeEntry) Mode() EntryMode {
	return te.entryMode
}

// Size returns the size of the entry
func (te *TreeEntry) Size() int64 {
	if te.IsDir() {
		return 0
	} else if te.sized {
		return te.size
	}

	wr, rd, cancel := te.ptree.repo.CatFileBatchCheck(te.ptree.repo.Ctx)
	defer cancel()
	_, err := wr.Write([]byte(te.ID.String() + "\n"))
	if err != nil {
		log.Debug("error whilst reading size for %s in %s. Error: %v", te.ID.String(), te.ptree.repo.Path, err)
		return 0
	}
	_, _, te.size, err = ReadBatchLine(rd)
	if err != nil {
		log.Debug("error whilst reading size for %s in %s. Error: %v", te.ID.String(), te.ptree.repo.Path, err)
		return 0
	}

	te.sized = true
	return te.size
}

// IsSubModule if the entry is a sub module
func (te *TreeEntry) IsSubModule() bool {
	return te.entryMode == EntryModeCommit
}

// IsDir if the entry is a sub dir
func (te *TreeEntry) IsDir() bool {
	return te.entryMode == EntryModeTree
}

// IsLink if the entry is a symlink
func (te *TreeEntry) IsLink() bool {
	return te.entryMode == EntryModeSymlink
}

// IsRegular if the entry is a regular file
func (te *TreeEntry) IsRegular() bool {
	return te.entryMode == EntryModeBlob
}

// IsExecutable if the entry is an executable file (not necessarily binary)
func (te *TreeEntry) IsExecutable() bool {
	return te.entryMode == EntryModeExec
}

// Blob returns the blob object the entry
func (te *TreeEntry) Blob() *Blob {
	return &Blob{
		ID:      te.ID,
		name:    te.Name(),
		size:    te.size,
		gotSize: te.sized,
		repo:    te.ptree.repo,
	}
}