<?php

class InvoiceFileModel {
  public $invoice_id;
  public $file_id;
  public $name;
  public $description;
  
  public $create_by = null;
  public $edit_by = null;
  public $create = null;
  public $edit = null;
  

  public static function create(Array $data) {
    $model = new InvoiceFile();
    
    foreach($data as $field => $value) {
      if(property_exists(get_called_class(), $field)) {
        $model ->$field = $value;
      }
    }
    
    $me = new User();
    $me->loadMe();

    if($model->create_by === null) {
      $model->create_by = $me->id;
    }
    if($model->edit_by === null) {
      $model->edit_by = $me->id;
    }
    
    return $model;
  }

  public static function createFromInvoice(Invoice $invoice) {
      $log = mfLoghandler::singleton();
      $invoice_path_base = MFUPLOAD_FILE_SAVE_PATH."/".TT_INVOICE_SAVE_SUBFOLDER;

      $invoice_date = new DateTime("@".$invoice->invoice_date);
      $year = $invoice_date->format("Y");
      $invoice_subfolder = TT_INVOICE_SAVE_SUBFOLDER."/$year";
      $invoice_path = "$invoice_path_base/$year";


      if(!file_exists($invoice_path)) {
          mkdir($invoice_path, 0777, true);
      }

      // create PDF
      $tmp_filename = $invoice->createPdf();
      if(!$tmp_filename) {
          $log->debug("Error creating PDF file");
          return false;
      }

      $new_filename = $invoice->invoice_number.".pdf";

      // move pdf to correct folder
      if(!rename($tmp_filename, "$invoice_path/$new_filename")) {
          $log->debug("Error moving created PDF file");
          return false;
      }

      // create File
      $file = FileModel::create([
          "name" => $invoice->invoice_number,
          "filename" => $new_filename,
          "subfolder" => $invoice_subfolder,
          "store_filename" => $new_filename,
          "orig_filename" => $new_filename,
      ]);

      if(!$file->save()) {
          echo "Error saving PDF file", "error";
          return false;
      }

      // create InvoiceFile
      $ifile = InvoiceFileModel::create([
          "invoice_id" => $invoice->id,
          "file_id" => $file->id,
          "name" => $new_filename,
          "description" => ""
      ]);

      if(!$ifile->save()) {
          echo "Error saving PDF Invoice file", "error";
          return false;
      }

      return $ifile;
  }

  public static function getAll() {
    $items = [];
    
    $db = FronkDB::singleton();
    
    $res = $db->select("InvoiceFile", "*", "1=1 ORDER BY name");
    if($db->num_rows($res)) {
      while($data = $db->fetch_object($res)) {
        $items[] = new InvoiceFile($data);
      }
    }
    return $items;
    
  }

  public static function getFirst($filter = []) {
    $db = FronkDB::singleton();
    
    $where = self::getSqlFilter($filter);
    $res = $db->select("InvoiceFile", "*", "$where ORDER BY name");
    if($db->num_rows($res)) {
      $data = $db->fetch_object($res);
      $item = new InvoiceFile($data);
      if($item->id) {
        return $item;
      } else {
        return null;
      }
    }
    return null;
  }
  
  public static function search($filter) {
    $items = [];
    $db = FronkDB::singleton();
    
    $where = self::getSqlFilter($filter);
    
    $sql = "SELECT InvoiceFile.* FROM InvoiceFile
            LEFT JOIN File ON (InvoiceFile.file_id = File.id)
            WHERE $where
            ORDER BY invoice_id, name";
    
    $res = $db->query($sql);
    
    if($db->num_rows($res)) {
      while($data = $db->fetch_object($res)) {
        $items[] = new InvoiceFile($data);
      }
    }
    return $items;
  }
  
  private static function getSqlFilter($filter) {
    $where = "1=1 ";

    
    if(array_key_exists("file_id", $filter)) {
      $file_id = $filter['file_id'];
      if(is_numeric($file_id)) {
        $where .= " AND file_id=$file_id";
      }
    }
    
    if(array_key_exists("invoice_id", $filter)) {
      $invoice_id = $filter['invoice_id'];
      if(is_numeric($invoice_id)) {
        $where .= " AND invoice_id=$invoice_id";
      }
    }
    
    //var_dump($filter);exit;
    if(array_key_exists("name", $filter)) {
      $name = FronkDB::singleton()->escape($filter['name']);
      if($name) {
        $where .= " AND name='$name'";
      }
    }
    
    if(array_key_exists("filename", $filter)) {
      $filename = FronkDB::singleton()->escape($filter['filename']);
      if($filename) {
        $where .= " AND File.filename='$filename'";
      }
    }
    
    if(array_key_exists("subfolder", $filter)) {
      $subfolder = FronkDB::singleton()->escape($filter['subfolder']);
      if($subfolder) {
        $where .= " AND File.subfolder='$subfolder'";
      }
    }
    
    //var_dump($filter, $where);exit;
    return $where;
  }
  
}