package integration

import (
	"time"
	"os"
	"path"
	"caj-larsson/bog/domain"
)

type FileSystemBogFileData struct {
	path string
	size int64
	mod_time time.Time
	file *os.File
}


func (f FileSystemBogFileData) Read(p []byte) (int, error) {
	return f.file.Read(p)
}

func (f FileSystemBogFileData) Write(p []byte) (int, error) {
	return f.file.Write(p)
}

func (f FileSystemBogFileData) Close() error {
	return f.file.Close()
}

func (f FileSystemBogFileData) Seek(offset int64, whence int) (int64, error) {
	return f.file.Seek(offset, whence)
}

func (f FileSystemBogFileData) Path() string {
	return f.path
}

func (f FileSystemBogFileData) Size() int64 {
	return f.size
}

func (f FileSystemBogFileData) Modified() time.Time{
	return time.Now()
}

type FileSystemBogRepository struct {
	Root string
}

func (f FileSystemBogRepository) absPath(filename string, user_agent_label string) string {
	return path.Join(f.Root, user_agent_label, filename)
}

func (f FileSystemBogRepository) Create(filename string, user_agent_label string) (domain.BogInFile, error) {
	abs_path := f.absPath(filename, user_agent_label)
	//file_name := path.Base(open_path)
	dir := path.Dir(abs_path)
	os.MkdirAll(dir, 0750)
	file, err := os.OpenFile(abs_path, os.O_RDWR|os.O_CREATE, 0644)

	if err != nil {
		panic(err)
	}

	stat_info, err := file.Stat()
	if err != nil {
		panic(err)
	}

	bfd := FileSystemBogFileData {filename, stat_info.Size(), stat_info.ModTime(), file}

	return bfd, nil
}

func (f FileSystemBogRepository) Open(filename string, user_agent_label string) (domain.BogOutFile, error) {
	abs_path := f.absPath(filename, user_agent_label)
	//file_name := path.Base(open_path)
	dir := path.Dir(abs_path)
	os.MkdirAll(dir, 0750)
	file, err := os.OpenFile(abs_path, os.O_RDONLY, 0644)

	if err != nil {
		return nil, domain.ErrNotExists
	}

	bfd := FileSystemBogFileData {filename, 0, time.Now(), file}

	return bfd, nil
}

func (f FileSystemBogRepository) Delete(filename string, user_agent_label string) {
}