package database

import (
	"fmt"
	"log/slog"
	"time"

	"git.jmbit.de/jmb/scanfile/server/internal/store"
)

type File struct {
	Id          int64
  Blake2      string `xorm:"unique"`//Used for checking if the file already exists
  Uuid        string `xorm:"unique"`//used for file blob storage etc.
	Name        string //Name of the file
	Description string //Any text to add to it for context
	MimeType    string
	Size        int64
	CreatedAt   time.Time `xorm:"created"`
	UpdatedAt   time.Time `xorm:"updated"`
}

// Insert File to DB
func (f File) Insert() error {
	_, err := engine.InsertOne(f)
	return err
}

// Deletes a File
// TODO: Make atomic
func (f File) Delete() error {
  err := store.DeleteFile(f.Uuid)
  if err != nil {
    slog.Error("Could not delete File from disk", "file-uuid", f.Uuid, "file-name", f.Name)
    return err
  }
  slog.Info("Deleted File from disk", "uuid", f.Uuid)
  _, err = engine.Delete(f)
  if err != nil {
    slog.Error("Could not delete File from DB", "file-uuid", f.Uuid, "file-name", f.Name)
    return err
  }
  slog.Info("Deleted File from DB", "file-uuid", f.Uuid)

  return nil
}


func FileByID(id int64) (File, error) {
  file := File{Id: id}
  success, err := engine.Get(&file)
  if err != nil || success == false {
    return file, err
  }
  return file, nil
}

func FileByUUID(uuid string) (File, error) {
  file := File{Uuid: uuid}
  success, err := engine.Get(&file)
  if err != nil || success == false {
    return file, err
  }
  return file, nil
}

func FileByBlake2(hash string) (File, error) {
  file := File{Blake2: hash}
  success, err := engine.Get(&file)
  slog.Info("Getting file for blake2 hash", "success", success, "hash", hash)
  if err != nil {
    return file, err
  }
  if success == false {
    return file, fmt.Errorf("Record not found")
  }
  return file, nil
}

func FileAlreadyExists(blake2 string) (bool, error) {
  file := new(File)
  count, err := engine.Where("blake2 LIKE ?", blake2).Count(file)
  if err != nil {
    return false, err
  }
  if count > 0 {
    return true, nil
  } else {
    return false, nil
  }
}