<?php
/**
 * PHPCI - Continuous Integration for PHP
 *
 * @copyright    Copyright 2015, Block 8 Limited.
 * @license      https://github.com/Block8/PHPCI/blob/master/LICENSE.md
 * @link         https://www.phptesting.org/
 */

namespace PHPCI\Plugin;

use Exception;
use PHPCI\Builder;
use PHPCI\Helper\Lang;
use PHPCI\Model\Build;
use PHPCI\PluginInterface;
use Phar as PHPPhar;

/**
 * Phar Plugin
 *
 * Plugin to generate php package using phar format.
 *
 * @author       Wanderson <wandersonwhcr@gmail.com>
 * @package      PHPCI
 * @subpackage   Plugins
 */
class Phar implements PluginInterface
{
    /**
     * PHPCI
     * @var Builder
     */
    protected $phpci;

    /**
     * Build
     * @var Build
     */
    protected $build;

    /**
     * Output Directory
     * @var string
     */
    protected $directory;

    /**
     * Phar Filename
     * @var string
     */
    protected $filename;

    /**
     * Regular Expression Filename Capture
     * @var string
     */
    protected $regexp;

    /**
     * Stub Filename
     * @var string
     */
    protected $stub;

    /**
     * Standard Constructor
     *
     * $options['directory'] Output Directory. Default: %BUILDPATH%
     * $options['filename']  Phar Filename. Default: build.phar
     * $options['regexp']    Regular Expression Filename Capture. Default: /\.php$/
     * $options['stub']      Stub Content. No Default Value
     *
     * @param Builder $phpci
     * @param Build   $build
     * @param array   $options
     */
    public function __construct(Builder $phpci, Build $build, array $options = array())
    {
        // Basic
        $this->phpci = $phpci;
        $this->build = $build;

        // Directory?
        if (isset($options['directory'])) {
            $this->setDirectory($options['directory']);
        }

        // Filename?
        if (isset($options['filename'])) {
            $this->setFilename($options['filename']);
        }

        // RegExp?
        if (isset($options['regexp'])) {
            $this->setRegExp($options['regexp']);
        }

        // Stub?
        if (isset($options['stub'])) {
            $this->setStub($options['stub']);
        }
    }

    /**
     * Returns PHPCI
     *
     * @return PHPCI
     */
    public function getPHPCI()
    {
        return $this->phpci;
    }

    /**
     * Returns Build
     *
     * @return Build
     */
    public function getBuild()
    {
        return $this->build;
    }

    /**
     * Directory Setter
     *
     * @param  string $directory Configuration Value
     *
     * @return Phar   Fluent Interface
     */
    public function setDirectory($directory)
    {
        $this->directory = $directory;
        return $this;
    }

    /**
     * Directory Getter
     *
     * @return string Configurated or Default Value
     */
    public function getDirectory()
    {
        if (!isset($this->directory)) {
            $this->setDirectory($this->getPHPCI()->buildPath);
        }
        return $this->directory;
    }

    /**
     * Filename Setter
     *
     * @param  string $filename Configuration Value
     *
     * @return Phar   Fluent Interface
     */
    public function setFilename($filename)
    {
        $this->filename = $filename;
        return $this;
    }

    /**
     * Filename Getter
     *
     * @return string Configurated or Default Value
     */
    public function getFilename()
    {
        if (!isset($this->filename)) {
            $this->setFilename('build.phar');
        }
        return $this->filename;
    }

    /**
     * Regular Expression Setter
     *
     * @param  string $regexp Configuration Value
     *
     * @return Phar   Fluent Interface
     */
    public function setRegExp($regexp)
    {
        $this->regexp = $regexp;
        return $this;
    }

    /**
     * Regular Expression Getter
     *
     * @return string Configurated or Default Value
     */
    public function getRegExp()
    {
        if (!isset($this->regexp)) {
            $this->setRegExp('/\.php$/');
        }
        return $this->regexp;
    }

    /**
     * Stub Filename Setter
     *
     * @param  string $stub Configuration Value
     *
     * @return Phar   Fluent Interface
     */
    public function setStub($stub)
    {
        $this->stub = $stub;
        return $this;
    }

    /**
     * Stub Filename Getter
     *
     * @return string Configurated Value
     */
    public function getStub()
    {
        return $this->stub;
    }

    /**
     * Get stub content for the Phar file.
     *
     * @return string
     */
    public function getStubContent()
    {
        $content  = '';
        $filename = $this->getStub();
        if ($filename) {
            $content = file_get_contents($this->getPHPCI()->buildPath . '/' . $this->getStub());
        }
        return $content;
    }

    /**
     * {@inheritDocs}
     */
    public function execute()
    {
        $success = false;

        try {
            $phar = new PHPPhar($this->getDirectory() . '/' . $this->getFilename(), 0, $this->getFilename());
            $phar->buildFromDirectory($this->getPHPCI()->buildPath, $this->getRegExp());

            $stub = $this->getStubContent();
            if ($stub) {
                $phar->setStub($stub);
            }

            $success = true;

        } catch (Exception $e) {
            $this->getPHPCI()->log(Lang::get('phar_internal_error'));
            $this->getPHPCI()->log($e->getMessage());
        }

        return $success;
    }
}