<?php

class File extends mfBaseModel {
  private $creator;
  private $editor;
  
  public static function createFile($filename = false, $overwrite = false) {
    // make filename
    
    
  }

  protected function beforeSave() {
      if($this->mimetype) {
          return true;
      }
      $this->mimetype = $this->getMimetype();
  }


  public function fileExists() {
    if(!$this->store_filename) return false;
    $path = MFUPLOAD_FILE_SAVE_PATH;
    $path .= ($this->subfolder) ? "/".$this->subfolder : "";
    $path .= "/".$this->store_filename;
    return file_exists($path);
  }

  public function getMimetype() {
      if(!$this->store_filename) return false;

      $filepath = $this->getFullPath();
      if(!file_exists($filepath)) return false;

      $finfo = new finfo(FILEINFO_MIME_TYPE);
      $mime = $finfo->file($filepath);

      return $mime;
  }

  public function delete() {
		if($this->id) {
			$id = $this->id;
      
      // delete file in store
      if($this->subfolder) {
        $path = MFUPLOAD_FILE_SAVE_PATH."/".$this->subfolder."/".$this->store_filename;
      } else {
        $path = MFUPLOAD_FILE_SAVE_PATH."/".$this->store_filename;
      }
      if(!unlink($path)) {
        $this->log->warn(__CLASS__."::delete(): Error unlinking file ($path)");
      }
      
			$where = "id=$id";
			if($this->fieldprefix && !strstr($field,"_")) {
				$where = $this->fieldprefix."_id=$id";
			}
			if($this->db->delete($this->table,$where)) {
        if(method_exists($this, "afterDelete")) {
          $this->afterDelete();
        }
				$this->data = new stdClass();
				$this->id = "";
				return true;
			}
		}
		return false;
	}

    public function asBase64String() {
        $path = $this->getFullPath();
        if(!file_exists($path) || (!is_file($path) && !is_link($path))) {
            return TT_IMAGE_PLACEHOLDER_B64;
        }
        return base64_encode(file_get_contents($path));
    }

    public function asDataUrl() {
        $path = $this->getFullPath();
        if(!file_exists($path) || (!is_file($path) && !is_link($path))) {
            $mime = "image/webp";
            $base64 = TT_IMAGE_PLACEHOLDER_B64;
        } else {
            $base64 = $this->asBase64String();
            $mime = $this->getMimetype();
        }
        return "data:$mime;base64,$base64";
    }
  public function getFullPath() {
    /*if(!is_numeric($this->id) || $this->id < 1) {
      throw new Exception("File not found", 4040);
    }*/

    $filename = $this->store_filename;
    $path = MFUPLOAD_FILE_SAVE_PATH;
    $path .= ($this->subfolder) ? "/".$this->subfolder : "";
    $path .= "/$filename";
    
    if(!file_exists($path)) {
      throw new Exception("File not found", 4041);
    }
    
    return $path;
  }
  
  public function getContents() {
    $outname = $this->getFullPath();
    return file_get_contents($outname);
  }
  
  
  public function getProperty($name) {
    if($this->$name == null) {
      
      if(!$this->id) {
        return null;
      }
      
      if($name == "creator") {
        $this->creator = new User($this->create_by);
        return $this->creator;
      }
      
      if($name == "editor") {
        $this->editor = new User($this->edit_by);
        return $this->editor;
      }
      
      $classname = ucfirst($name);
      $idfield = $name."_id";
      $this->$name = new $classname($this->$idfield);
      
      if($this->$name->id) {
        return $this->$name;
      } else {
        return null;
      }
    }
    
    return $this->$name;
  }

}