<?php

namespace PhpZip\Model\Data;

use PhpZip\Exception\ZipException;
use PhpZip\Model\ZipData;
use PhpZip\Model\ZipEntry;

/**
 * Class ZipFileData.
 */
class ZipFileData implements ZipData
{
    /** @var \SplFileInfo */
    private $file;

    /**
     * ZipStringData constructor.
     *
     * @param ZipEntry     $zipEntry
     * @param \SplFileInfo $fileInfo
     *
     * @throws ZipException
     */
    public function __construct(ZipEntry $zipEntry, \SplFileInfo $fileInfo)
    {
        if (!$fileInfo->isFile()) {
            throw new ZipException('$fileInfo is not a file.');
        }

        if (!$fileInfo->isReadable()) {
            throw new ZipException('$fileInfo is not readable.');
        }

        $this->file = $fileInfo;
        $zipEntry->setUncompressedSize($fileInfo->getSize());
    }

    /**
     * @throws ZipException
     *
     * @return resource returns stream data
     */
    public function getDataAsStream()
    {
        if (!$this->file->isReadable()) {
            throw new ZipException(sprintf('The %s file is no longer readable.', $this->file->getPathname()));
        }

        return fopen($this->file->getPathname(), 'rb');
    }

    /**
     * @throws ZipException
     *
     * @return string returns data as string
     */
    public function getDataAsString()
    {
        if (!$this->file->isReadable()) {
            throw new ZipException(sprintf('The %s file is no longer readable.', $this->file->getPathname()));
        }

        return file_get_contents($this->file->getPathname());
    }

    /**
     * @param resource $outStream
     *
     * @throws ZipException
     */
    public function copyDataToStream($outStream)
    {
        try {
            $stream = $this->getDataAsStream();
            stream_copy_to_stream($stream, $outStream);
        } finally {
            fclose($stream);
        }
    }
}