package store

import (
	"io"
	"log/slog"
	"mime/multipart"
	"os"
	"path/filepath"

	"github.com/google/uuid"
	"github.com/spf13/viper"
)

func SetupStore() {
	path, err := filepath.Abs(viper.GetString("store.path"))
	if err != nil {
		slog.Error("could get full create storage path", "error", err, "path", viper.GetString("store.path"))
		panic(err)
	}
	err = os.MkdirAll(path, os.ModePerm)
	if err != nil {
		slog.Error("could get create storage directory", "error", err, "path", viper.GetString("store.path"))
	}
	slog.Info("Initialized File storage directory")
}

func SaveFile(file multipart.File) (string, error) {
	path, err := filepath.Abs(viper.GetString("store.path"))
	if err != nil {
		slog.Error("could not save file,", "error", err)
		return "", err
	}
	fileName, err := uuid.NewRandom()
	if err != nil {
		slog.Error("could not save file,", "error", err)
		return "", err
	}
	osFile, err := os.Create(filepath.Join(path, fileName.String()))
	if err != nil {
		slog.Error("could not write to file on disk,", "error", err)
		return "", err
	}
	_, err = io.Copy(osFile, file)
	if err != nil {
		slog.Error("could not save file,", "error", err)
		return "", err
	}

	return fileName.String(), nil
}

func OpenFile(fileId string) (*os.File, error) {
	path, err := filepath.Abs(viper.GetString("store.path"))
	if err != nil {
		slog.Error("Storage directory not accessible", "error", err)
		return nil, err
	}
	file, err := os.Open(filepath.Join(path, fileId))

	return file, err
}

func DeleteFile(fileId string) error {
	path, err := filepath.Abs(viper.GetString("store.path"))
	if err != nil {
		slog.Error("Storage directory not accessible", "error", err)
		return err
	}
	return os.Remove(path)
}

func absPath(fileID string) (string, error) {
	path, err := filepath.Abs(viper.GetString("store.path"))
	if err != nil {
		slog.Error("could not get full path for file,", "error", err)
		return "", err
	}
	return path, nil
}