<?php

namespace kernel\services;

use DirectoryIterator;
use kernel\helpers\Debug;
use kernel\helpers\Manifest;
use kernel\models\Option;

class ModuleService
{

    public function getModuleInfo(string $module): false|array|string
    {
        $info = [];
        $info['path'] = $module;
        if (file_exists($module . "/manifest.json")) {
            $manifest = file_get_contents($module . "/manifest.json");
            $manifest = Manifest::getWithVars($manifest);
            $info = array_merge($info, $manifest);
        }

        return $info;
    }

    public function isActive(string $slug): bool
    {
        $active_modules = Option::where("key", "active_modules")->first();
        if ($active_modules) {
            $path = json_decode($active_modules->value);
            foreach ($path->modules as $p) {
                if ($p === $slug) {
                    return true;
                }
            }
        }

        return false;
    }

    public function setActiveModule(string $module): void
    {
        $active_modules = Option::where("key", "active_modules")->first();
        $path = json_decode($active_modules->value);
        if (in_array($module, $path->modules)) {
            unset($path->modules[array_search($module, $path->modules)]);
            $path->modules = array_values($path->modules);
        } else {
            $path->modules[] = $module;
        }
        $active_modules->value = json_encode($path, JSON_UNESCAPED_UNICODE);
        $active_modules->save();
    }

    public function getModuleDir(string $slug)
    {
        $module_paths = Option::where("key", "module_paths")->first();
        $dirs = [];
        if ($module_paths) {
            $path = json_decode($module_paths->value);
            foreach ($path->paths as $p) {
                $dirs[] = getConst($p);
            }
        }

        foreach ($dirs as $dir) {
            foreach (new DirectoryIterator($dir) as $fileInfo) {
                if (basename($fileInfo->getPathname()) === $slug) {
                    return $fileInfo->getPathname();
                }
            }
        }
        return false;
    }

    public function getActiveModules(): array
    {
        $modules = [];
        $module_paths = Option::where("key", "module_paths")->first();
        $dirs = [];
        if ($module_paths) {
            $path = json_decode($module_paths->value);
            foreach ($path->paths as $p) {
                $dirs[] = getConst($p);
            }
        }

        foreach ($dirs as $dir) {
            foreach (new DirectoryIterator($dir) as $fileInfo) {
                if($fileInfo->isDot()) continue;
                $modules[] = $this->getModuleInfo($fileInfo->getPathname());
            }
        }

        return $modules;
    }

    public function getModulesRouts(): array
    {
        $routs = [];
        $modules = $this->getActiveModules();
        foreach ($modules as $module){
            if (isset($module['routs'])){
                $routs[] = $module['path'] . "/" . $module['routs'];
            }
        }

        return $routs;
    }

}