<?php
// This file is part of Moodle - http://moodle.org/
//
// Moodle is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Moodle is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.

namespace core_course\output;

use action_link;
use cm_info;
use renderable;
use renderer_base;
use section_info;
use stdClass;
use templatable;
use core\di;
use core\hook;

/**
 * Class to render a activity chooser button.
 *
 * @package    core_course
 * @copyright  2024 Mikel Martín <mikel@moodle.com>
 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 */
class activitychooserbutton implements templatable, renderable {

    /**
     * Constructor.
     *
     * @param section_info $section the section info
     * @param cm_info|null $mod the course module ionfo
     * @param int|null $sectionreturn the section to return to
     * @param array|null $actionlinks the action links
     */
    public function __construct(
        /** @var section_info the section object */
        protected section_info $section,
        /** @var cm_info|null the course module instance */
        protected ?cm_info $mod = null,
        /** @var sectionreturn|null the section to return to */
        protected ?int $sectionreturn = null,
        /** @var array|null action_link[] the action links */
        protected ?array $actionlinks = [],
    ) {
    }

    /**
     * Export this data so it can be used as the context for a mustache template.
     *
     * @param renderer_base $output typically, the renderer that's calling this function
     * @return stdClass data context for a mustache template
     */
    public function export_for_template(renderer_base $output): stdClass {
        // Look for plugins that want to add extra action links to the activity chooser button.
        di::get(hook\manager::class)->dispatch(
            new \core_course\hook\before_activitychooserbutton_exported(
                $this,
                $this->section,
                $this->mod,
            ),
        );

        return (object)[
            'sectionnum' => $this->section->section,
            'sectionreturn' => $this->sectionreturn ?? false,
            'modid' => $this->mod ? $this->mod->id : false,
            'activityname' => $this->mod ? $this->mod->get_formatted_name() : false,
            'hasactionlinks' => !empty($this->actionlinks),
            'actionlinks' => array_map(fn(action_link $action) => $action->export_for_template($output), $this->actionlinks),
        ];
    }

    /**
     * Add an action link.
     *
     * @param action_link $action the action link to add
     */
    public function add_action_link(action_link $action): void {
        $this->actionlinks[] = $action;
    }
}