<?php

class PreorderBillingInvoiceFile extends mfBaseModel {
    private $file;
    private $creator;
    private $editor;

    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;
    }

    /********************************
     * Begin static Model functions
     */

    public static function create(Array $data) {
        $model = new PreorderBillingInvoiceFile();

        $table_fields = [
            "invoice_id", "file_id", "name", "description",
            "create_by","edit_by","create","edit"
        ];

        foreach($data as $field => $value) {
            if(in_array($field, $table_fields)) {
                $model->$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(PreorderBillingInvoice $invoice) {
        $log = mfLoghandler::singleton();
        $invoice_path_base = MFUPLOAD_FILE_SAVE_PATH."/".TT_PREORDER_BILLING[$invoice->netowner_id]["subfolder"];

        $invoice_date = new DateTime($invoice->invoice_date);
        $year = $invoice_date->format("Y");
        $invoice_subfolder = TT_PREORDER_BILLING[$invoice->netowner_id]["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
        $log->debug(__METHOD__.": invoice path: $invoice_path");
        $log->debug(__METHOD__.": new filename: $invoice_path/$new_filename");
        if(!rename($tmp_filename, "$invoice_path/$new_filename")) {
            $log->debug(__METHOD__.": Error moving created PDF file");
            return false;
        }

        try {
            // 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()) {
                $log->error(__METHOD__ . ": Error saving PDF file");
                return false;
            }
        } catch(Exception $e) {
            $log->error(__METHOD__ . ": Exception while creating File object");
            throw($e);
        }

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

        if(!$ifile->save()) {
            $log->error(__METHOD__.": Error saving PDF Invoice file");
            return false;
        }

        return $ifile;
    }

    public static function getAll() {
        $items = [];

        $db = FronkDB::singleton();

        $res = $db->select("PreorderBillingInvoiceFile", "*", "1=1 ORDER BY name");
        if($db->num_rows($res)) {
            while($data = $db->fetch_object($res)) {
                $items[] = new PreorderBillingInvoiceFile($data);
            }
        }
        return $items;

    }

    public static function getFirst($filter = []) {
        $db = FronkDB::singleton();

        $where = self::getSqlFilter($filter);
        $res = $db->select("PreorderBillingInvoiceFile", "*", "$where ORDER BY name");
        if($db->num_rows($res)) {
            $data = $db->fetch_object($res);
            $item = new PreorderBillingInvoiceFile($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 PreorderBillingInvoiceFile.* FROM PreorderBillingInvoiceFile
            LEFT JOIN File ON (PreorderBillingInvoiceFile.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)) {
                $items[] = new PreorderBillingInvoiceFile($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;
    }
}