package file

import (
	"bufio"
	"fmt"
	"io/fs"
	"os"
	"os/exec"
	"time"

	"github.com/spf13/afero"
)

type FileOption struct {
	Path       string `json:"path"`
	Search     string `json:"search"`
	ContainSub bool   `json:"containSub"`
	Expand     bool   `json:"expand"`
	Dir        bool   `json:"dir"`
	ShowHidden bool   `json:"showHidden"`
	Page       int    `json:"page"`
	PageSize   int    `json:"pageSize"`
}

type FileInfo struct {
	Fs         afero.Fs    `json:"-"`
	Path       string      `json:"path"`
	Name       string      `json:"name"`
	Extension  string      `json:"extension"`
	Content    string      `json:"content"`
	Size       int64       `json:"size"`
	IsDir      bool        `json:"isDir"`
	IsSymlink  bool        `json:"isSymlink"`
	IsHidden   bool        `json:"isHidden"`
	LinkPath   string      `json:"linkPath"`
	Type       string      `json:"type"`
	Mode       string      `json:"mode"`
	MimeType   string      `json:"mimeType"`
	UpdateTime time.Time   `json:"updateTime"`
	ModTime    time.Time   `json:"modTime"`
	FileMode   os.FileMode `json:"-"`
	Items      []*FileInfo `json:"items"`
	ItemTotal  int         `json:"itemTotal"`
}

func (f *FileInfo) search(search string, count int) (files []FileSearchInfo, total int, err error) {
	cmd := exec.Command("find", f.Path, "-name", fmt.Sprintf("*%s*", search))
	output, err := cmd.StdoutPipe()
	if err != nil {
		return
	}
	if err = cmd.Start(); err != nil {
		return
	}
	defer func() {
		_ = cmd.Wait()
		_ = cmd.Process.Kill()
	}()

	scanner := bufio.NewScanner(output)
	for scanner.Scan() {
		line := scanner.Text()
		info, err := os.Stat(line)
		if err != nil {
			continue
		}
		total++
		if total > count {
			continue
		}
		files = append(files, FileSearchInfo{
			Path:     line,
			FileInfo: info,
		})
	}
	if err = scanner.Err(); err != nil {
		return
	}
	return
}

type FileSearchInfo struct {
	Path string `json:"path"`
	fs.FileInfo
}