<?php

namespace Spip\Autodoc\Stage;

use Spip\Autodoc\Context;
use Spip\Autodoc\Exception\ContextException;
use Spip\Autodoc\Git;
use Spip\Autodoc\Package;
use Symfony\Component\Filesystem\Filesystem;

/**
 * Prepare phpdoc.xml for this documentation.
 */
class PhpDocumentorConfigStage implements StageInterface
{
    public function __invoke(Context $context): Context
    {
        $context->add('stages', $this::class);
        $context->get('logger')->debug("Pass: " . $this::class);

        if (
            !$context->has('package')
            or !$context->get('package') instanceof Package
        ) {
            throw new ContextException(sprintf('Key "%s" needs to be defined and instance of Package.', 'package'));
        }

        $fs = new Filesystem();
        $package = $context->get('package');
        $prefix = $package->get('prefix') ?: $context->get('default_prefix');

        if ($context->directory->empty('output')) {
            $context->directory->set('output', $context->directory->output_base . '/' . $prefix);
        }
        $output_directory = $context->directory->output;
        if (!$fs->exists($output_directory)) {
            $fs->mkdir($output_directory);
        }

        if ($context->directory->empty('cache')) {
            $context->directory->set('cache', $context->directory->cache_base . '/' . $prefix);
        }
        $cache_directory = $context->directory->cache;
        if (!$fs->exists($cache_directory)) {
            $fs->mkdir($cache_directory);
        }

        $config_directory = $context->directory->config;
        if (!$fs->exists($config_directory)) {
            $fs->mkdir($config_directory);
        }

        // copy templates in config directory
        $fs->mirror(
            $context->phpdocumentor->config_directory,
            $config_directory . '/.phpdoc',
            options: [
                'delete' => true,
                'override' => true,
            ]
        );

        $repository = $context->has('git_asked') ? ($context->get('git_asked')->getRepositoryUrl() ?? '') : '';

        $replacements = [
            '@INPUT_DIRECTORY@' => $context->directory->input,
            '@OUTPUT_DIRECTORY@' => $output_directory,
            '@CACHE_DIRECTORY@' => $cache_directory,

            '@PREFIX@' => $prefix,
            '@DEFAULT_PACKAGE_NAME@' => $context->get('default_prefix'),
            '@TITLE@' => $this->escape_xml($context->get('title')),
            '@SLOGAN@' => $this->escape_xml($package->get('slogan')),
            '@DESCRIPTION@' => $this->escape_xml($package->get('description')),
            '@PRESENTATION@' => $this->escape_xml($context->get('presentation')),
            '@VERSION@' => $package->get('version'),
            '@REVISION@' => ($context->has('git') ? $context->get('git')->getCommit() : ''),
            '@URL_PACKAGE@' => $package->get('url_package'),
            '@URL_DOCUMENTATION@' => $package->get('url_documentation'),
            '@URL_DEVELOPMENT@' => $package->get('url_development'),
            '@URL_REPOSITORY@' => $repository,
            '@GUIDES_ENABLED@' => ($package->get('with_rst_documentation') ? 'true' : 'false'),
        ];
        $phpdocumentor_template_xml = $context->directory->templates . '/phpdoc.xml';
        $template = file_get_contents($phpdocumentor_template_xml);
        $config = str_replace(array_keys($replacements), $replacements, $template);
        $config_file = $config_directory . '/phpdoc_' . $prefix . '.xml';
        file_put_contents($config_file, $config);
        $context->phpdocumentor->set('config', $config_file);

        return $context;
    }

    private function escape_xml(string $content) {
        return htmlspecialchars($content, \ENT_XML1, 'UTF-8');
    }
}