<?php

namespace App\Cms;

use Qs_Array;
use Qs_ConfigTrait;

class BodyTemplateProvider
{
    use Qs_ConfigTrait;

    protected $paths = [];
    protected $list;

    /**
     * @return array
     */
    public function getPaths()
    {
        return $this->paths;
    }

    /**
     * @param array $paths
     * @return $this
     */
    public function setPaths(array $paths)
    {
        if ($paths != $this->paths) {
            $this->clearList();
        }
        $this->paths = $paths;
        return $this;
    }

    public function clearList()
    {
        $this->list = null;
        return $this;
    }

    public function getList()
    {
        if (null !== $this->list) {
            return $this->list;
        }
        $this->list = [];
        foreach ($this->paths as $path) {
            if (!file_exists($path) || !is_dir($path)) {
                continue;
            }
            $files = glob($path . '/*.tpl');
            foreach ($files as $file) {
                $name = basename($file);
                if (array_key_exists($name, $this->list)) {
                    continue;
                }
                $this->list[$name] = [
                    'file'       => $file,
                    'title'      => $name,
                ];
            }
        }
        return $this->list;
    }

    public function search($name, $field = null, $default = null)
    {
        $list = $this->getList();
        if (array_key_exists($name, $list)) {
            return Qs_Array::get($list[$name], $field, $default);
        }
        return $default;
    }
}