<?php
class BackWPup_JobType_WPPlugin extends BackWPup_JobTypes
{
    public function __construct()
    {
        $this->info['ID'] = 'WPPLUGIN';
        $this->info['name'] = __('Plugins', 'backwpup');
        $this->info['description'] = __('Installed plugins list', 'backwpup');
        $this->info['URI'] = __('http://backwpup.com', 'backwpup');
        $this->info['author'] = 'Inpsyde GmbH';
        $this->info['authorURI'] = __('http://inpsyde.com', 'backwpup');
        $this->info['version'] = BackWPup::get_plugin_data('Version');
    }

    /**
     * @return bool
     */
    public function creates_file()
    {
        return true;
    }

    /**
     * @return array
     */
    public function option_defaults()
    {
        return ['pluginlistfilecompression' => '', 'pluginlistfile' => sanitize_file_name(get_bloginfo('name')) . '.pluginlist.%Y-%m-%d'];
    }

    /**
     * @param $jobid
     */
    public function edit_tab($jobid)
    {
        ?>
		<table class="form-table">
			<tr>
				<th scope="row"><label for="idpluginlistfile"><?php esc_html_e('Plugin list file name', 'backwpup'); ?></label></th>
				<td>
					<input name="pluginlistfile" type="text" id="idpluginlistfile"
						   value="<?php echo esc_attr(BackWPup_Option::get($jobid, 'pluginlistfile')); ?>"
						   class="medium-text code"/>.txt
				</td>
			</tr>
			<tr>
				<th scope="row"><?php esc_html_e('File compression', 'backwpup'); ?></th>
				<td>
					<fieldset>
						<?php
                        echo '<label for="idpluginlistfilecompression"><input class="radio" type="radio"' . checked('', BackWPup_Option::get($jobid, 'pluginlistfilecompression'), false) . ' name="pluginlistfilecompression"  id="idpluginlistfilecompression" value="" /> ' . esc_html__('none', 'backwpup') . '</label><br />';
        if (function_exists('gzopen')) {
            echo '<label for="idpluginlistfilecompression-gz"><input class="radio" type="radio"' . checked('.gz', BackWPup_Option::get($jobid, 'pluginlistfilecompression'), false) . ' name="pluginlistfilecompression" id="idpluginlistfilecompression-gz" value=".gz" /> ' . esc_html__('GZip', 'backwpup') . '</label><br />';
        } else {
            echo '<label for="idpluginlistfilecompression-gz"><input class="radio" type="radio"' . checked('.gz', BackWPup_Option::get($jobid, 'pluginlistfilecompression'), false) . ' name="pluginlistfilecompression" id="idpluginlistfilecompression-gz" value=".gz" disabled="disabled" /> ' . esc_html__('GZip', 'backwpup') . '</label><br />';
        } ?>
					</fieldset>
				</td>
			</tr>
		</table>
	<?php
    }

    /**
     * @param $id
     */
    public function edit_form_post_save($id)
    {
        BackWPup_Option::update($id, 'pluginlistfile', sanitize_text_field($_POST['pluginlistfile']));
        if ($_POST['pluginlistfilecompression'] === '' || $_POST['pluginlistfilecompression'] === '.gz' || $_POST['pluginlistfilecompression'] === '.bz2') {
            BackWPup_Option::update($id, 'pluginlistfilecompression', $_POST['pluginlistfilecompression']);
        }
    }

    /**
     * @param $job_object
     *
     * @return bool
     */
    public function job_run(BackWPup_Job $job_object)
    {
        $job_object->substeps_todo = 1;

        $job_object->log(sprintf(__('%d. Trying to generate a file with installed plugin names&#160;&hellip;', 'backwpup'), $job_object->steps_data[$job_object->step_working]['STEP_TRY']));
        //build filename
        if (empty($job_object->temp['pluginlistfile'])) {
            $job_object->temp['pluginlistfile'] = $job_object->generate_filename($job_object->job['pluginlistfile'], 'txt') . $job_object->job['pluginlistfilecompression'];
        }

        if ($job_object->job['pluginlistfilecompression'] == '.gz') {
            $handle = fopen('compress.zlib://' . BackWPup::get_plugin_data('TEMP') . $job_object->temp['pluginlistfile'], 'w');
        } else {
            $handle = fopen(BackWPup::get_plugin_data('TEMP') . $job_object->temp['pluginlistfile'], 'w');
        }

        if ($handle) {
            //open file
            $header = '------------------------------------------------------------' . PHP_EOL;
            $header .= '  Plugin list generated with BackWPup version: ' . BackWPup::get_plugin_data('Version') . PHP_EOL;
            $header .= '  http://backwpup.com' . PHP_EOL;
            $header .= '  Blog Name: ' . get_bloginfo('name') . PHP_EOL;
            $header .= '  Blog URL: ' . get_bloginfo('url') . PHP_EOL;
            $header .= '  Generated on: ' . date('Y-m-d H:i.s', current_time('timestamp')) . PHP_EOL;
            $header .= '------------------------------------------------------------' . PHP_EOL . PHP_EOL;
            fwrite($handle, $header);
            //get Plugins
            if (!function_exists('get_plugins')) {
                require_once ABSPATH . 'wp-admin/includes/plugin.php';
            }
            $plugins = get_plugins();
            $plugins_active = get_option('active_plugins');
            //write it to file
            fwrite($handle, PHP_EOL . __('All plugin information:', 'backwpup') . PHP_EOL . '------------------------------' . PHP_EOL);

            foreach ($plugins as $plugin) {
                fwrite($handle, $plugin['Name'] . ' (v.' . $plugin['Version'] . ') ' . html_entity_decode(sprintf(__('from %s', 'backwpup'), $plugin['Author']), ENT_QUOTES) . PHP_EOL . "\t" . $plugin['PluginURI'] . PHP_EOL);
            }
            fwrite($handle, PHP_EOL . __('Active plugins:', 'backwpup') . PHP_EOL . '------------------------------' . PHP_EOL);

            foreach ($plugins as $key => $plugin) {
                if (in_array($key, $plugins_active, true)) {
                    fwrite($handle, $plugin['Name'] . PHP_EOL);
                }
            }
            fwrite($handle, PHP_EOL . __('Inactive plugins:', 'backwpup') . PHP_EOL . '------------------------------' . PHP_EOL);

            foreach ($plugins as $key => $plugin) {
                if (!in_array($key, $plugins_active, true)) {
                    fwrite($handle, $plugin['Name'] . PHP_EOL);
                }
            }
            fclose($handle);
        } else {
            $job_object->log(__('Can not open target file for writing.', 'backwpup'), E_USER_ERROR);

            return false;
        }

        //add file to backup files
        if (is_readable(BackWPup::get_plugin_data('TEMP') . $job_object->temp['pluginlistfile'])) {
            $job_object->additional_files_to_backup[] = BackWPup::get_plugin_data('TEMP') . $job_object->temp['pluginlistfile'];
            $job_object->log(sprintf(__('Added plugin list file "%1$s" with %2$s to backup file list.', 'backwpup'), $job_object->temp['pluginlistfile'], size_format(filesize(BackWPup::get_plugin_data('TEMP') . $job_object->temp['pluginlistfile']), 2)));
        }
        $job_object->substeps_done = 1;

        return true;
    }
}
