<?php

/**
 * This is the model class for table "block_images".
 *
 * @property integer $id
 * @property integer $target_id
 * @property integer $target_type
 * @property integer $parent
 * @property string $name
 * @property string $file
 * @property bool $newRecord
 * @property bool $created_at
 */
class Document implements ImportRecord
{
    const TYPE_APARTMENT = 1;

    const TYPE_BLOCK = 2;

    const TYPE_BLOCK_PROGRESS = 3;

    const TYPE_BLOCK_PLUS = 9;

    const TYPE_RETRANSFER = 4;

    public $id;
    public $target_id;
    public $target_type;
    public $parent;
    public $name;
    public $file;
    public $newRecord;
    public $created_at;

    /**
     * Document constructor.
     */
    public function __construct()
    {
        $this->newRecord = true;
    }


    public function isDir()
    {
        return empty($this->file);
    }

    public function save()
    {
        try {
            if ($this->newRecord) {
                if (!isset($this->id)) {
                    $sql = "INSERT INTO documents (name, created_at, target_id, target_type, parent, file) VALUES ('" . $this->name .
                        "', NOW(), '" . $this->target_id . "', '" . $this->target_type . "', '" . $this->parent . "', '" . $this->file . "')";
                } else {
                    $sql = "INSERT INTO documents (id, name, created_at, target_id, target_type, parent, file) VALUES ('" . $this->id .
                        "', '" . $this->name . "', NOW(), '" . $this->target_id . "', '" . $this->target_type . "', '" . $this->parent . "', '" . $this->file . "')";
                }
                mysql_query($sql);
                $err = mysql_errno();
                if ($err > 0) {
                    echo mysql_error();
                    return false;
                }
                if (!isset($this->id)) {
                    $this->id = mysql_insert_id();
                }
            } else {
                throw new Exception("no document update implemented");
            }

            return true;
        } catch (Exception $e) {
            echo $e->getMessage();
            return false;
        }
    }

    public function saveNewName()
    {
        try {
            $sql = "UPDATE documents SET name='" . $this->name . "' WHERE id='" . $this->id . "' and target_id = '" . $this->target_id . "' and target_type = '" . $this->target_type . "'";
            mysql_query($sql);

            return true;
        } catch (Exception $e) {
            echo $e->getMessage();
            return false;
        }
    }

    public function getIsNewRecord()
    {
        return $this->newRecord;
    }

    public static function deleteAll($condition = '')
    {
        throw new Exception("deleteAll not implemented");
    }

    public static function className()
    {
        return get_called_class();
    }

    public static function findOne($id)
    {
        throw new Exception("findOne only by id not implemented");
    }

    public static function findById($targetId, $targetType, $id)
    {
        $sql = "SELECT * FROM documents WHERE id='$id' and target_id = '$targetId' and target_type = '$targetType'";
        $rez = mysql_query($sql);
        if (mysql_num_rows($rez)) {
            $document = new Document();
            $document->newRecord = false;
            $dbObject = mysql_fetch_array($rez);
            $document->id = $dbObject['id'];
            $document->name = $dbObject['name'];
            $document->target_id = $dbObject['target_id'];
            $document->target_type = $dbObject['target_type'];
            $document->parent = $dbObject['parent'];
            $document->created_at = $dbObject['created_at'];
            $document->file = $dbObject['file'];

            return $document;
        }

        return null;
    }

    public static function getChildren($targetId, $targetType, $parentId)
    {
        $sql = "SELECT * FROM documents WHERE parent='$parentId' and target_id = '$targetId' and target_type = '$targetType'";
        $rez = mysql_query($sql);
        $documents = array();
        if (mysql_num_rows($rez) > 0) {
            while ($dbObject = mysql_fetch_assoc($rez)) {
                $document = new Document();
                $document->newRecord = false;
                $document->id = $dbObject['id'];
                $document->name = $dbObject['name'];
                $document->target_id = $dbObject['target_id'];
                $document->target_type = $dbObject['target_type'];
                $document->parent = $dbObject['parent'];
                $document->created_at = $dbObject['created_at'];
                $document->file = $dbObject['file'];
                $documents[] = $document;
            }
        }
        return $documents;
    }

    public function delete()
    {
        $sql = "DELETE FROM documents WHERE id='" . $this->id . "' and target_id = '" . $this->target_id . "' and target_type = '" . $this->target_type . "'";
        mysql_query($sql);

        if (!$this->isDir() && stripos($this->file, "http://") === false) {
            unlink($_SERVER['DOCUMENT_ROOT'] . $this->file);
        }
    }

}