<?php

namespace Modules\Configindex\Controllers;

use App\Controllers\BaseAdminController;
use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\HttpFoundation\Response;
use Symfony\Component\HttpFoundation\RedirectResponse;
use Modules\Configindex\Models\ConfigPage;

class ConfigIndexController extends BaseAdminController
{
    /**
     * List pages to configure
     */
    public function index(Request $request): Response
    {
        $user = $this->getCurrentUser();
        if (!$user) {
            return new RedirectResponse(url('login'));
        }

        $theme = $request->query->get('theme', \Kernel\View::getActiveTheme() ?? 'default');

        $pagesKeys = $this->getPagesKeys($theme);
        $pages = [];
        foreach ($pagesKeys as $key) {
            $pages[$key] = ucfirst($key);
        }

        $themesDir = dirname(dirname(dirname(dirname(__DIR__)))) . '/themes';
        $availableThemes = ['default' => 'Default'];
        if (is_dir($themesDir)) {
            $folders = array_diff(scandir($themesDir), ['.', '..']);
            foreach ($folders as $folder) {
                if (is_dir($themesDir . '/' . $folder)) {
                    $availableThemes[$folder] = ucfirst($folder);
                }
            }
        }

        return $this->renderAdminView('configindex/views/admin/index.twig', [
            'title' => __('configindex.title'),
            'pages' => $pages,
            'currentTheme' => $theme,
            'availableThemes' => $availableThemes
        ]);
    }

    /**
     * Show create form
     */
    public function create(Request $request): Response
    {
        $user = $this->getCurrentUser();
        if (!$user) {
            return new RedirectResponse(url('login'));
        }

        return $this->renderAdminView('configindex/views/admin/create.twig', [
            'title' => 'Nova Página Index'
        ]);
    }

    /**
     * Store new page
     */
    public function store(Request $request): Response
    {
        $user = $this->getCurrentUser();
        if (!$user) {
            return new RedirectResponse(url('login'));
        }

        $key = $request->request->get('key');
        if (!$key) {
            return new RedirectResponse(url('admin/configindex/create?error=missing_key'));
        }

        // Sanitiza a chave (slug)
        $key = strtolower(preg_replace('/[^a-zA-Z0-9_-]/', '', $key));

        $busId = $user->users_bus_id ?? 1;

        // Verifica se já existe
        $existing = ConfigPage::getByKey($key, $busId);
        if ($existing) {
            return new RedirectResponse(url('admin/configindex/create?error=already_exists'));
        }

        // Cria o registro no banco
        $page = new ConfigPage();
        $page->config_index_bus_id = $busId;
        $page->config_index_key = $key;
        $page->config_index_title = ucfirst($key);
        $page->config_index_show_public_nav = true;
        $page->config_index_show_dashboard_nav = true;
        $page->save();

        // Cria o arquivo físico se não existir
        $viewsPath = dirname(__DIR__, 3) . '/index/views';
        $templatePath = $viewsPath . '/' . $key . '.twig';

        if (!is_dir($viewsPath)) {
            mkdir($viewsPath, 0755, true);
        }

        if (!is_file($templatePath)) {
            $defaultContent = "{% extends '@index/layout.twig' %}\n\n{% block content %}\n<div class=\"container my-5\">\n    <h1>{{ __('index." . $key . ".title') }}</h1>\n    <p>{{ __('index." . $key . ".description') }}</p>\n</div>\n{% endblock %}\n";
            file_put_contents($templatePath, $defaultContent);
        }

        // Cria arquivos de tradução padrão
        $localesPath = dirname(__DIR__, 3) . '/index/locales';
        $languages = ['pt_BR', 'en_US', 'es_ES', 'de_DE', 'fr_FR'];

        foreach ($languages as $lang) {
            $savePath = $localesPath . '/' . $lang . '/index.json';
            if (!is_dir(dirname($savePath))) {
                mkdir(dirname($savePath), 0755, true);
            }

            $base = [];
            if (is_file($savePath)) {
                $base = json_decode(file_get_contents($savePath), true) ?: [];
            }

            if (!isset($base[$key])) {
                $base[$key] = [
                    'title' => ucfirst($key),
                    'description' => 'Conteúdo da página ' . $key
                ];
                file_put_contents($savePath, json_encode($base, JSON_PRETTY_PRINT | JSON_UNESCAPED_UNICODE));
            }
        }

        return new RedirectResponse(url('admin/configindex/' . $key . '/edit?success=created'));
    }

    /**
     * Get all valid page keys for a theme
     */
    private function getPagesKeys(string $themeSlug): array
    {
        $keys = [];
        $baseDir = dirname(dirname(dirname(dirname(__DIR__))));

        // 1. Coleta do módulo index (Padrão do Sistema)
        $indexViewsPath = $baseDir . '/modules/index/views';
        if (is_dir($indexViewsPath)) {
            $files = glob($indexViewsPath . '/*.{twig,php}', GLOB_BRACE);
            foreach ($files as $file) {
                $filename = pathinfo($file, PATHINFO_FILENAME);
                if ($filename !== 'layout') {
                    $keys[] = $filename;
                }
            }
        }

        // 2. Coleta do Tema (Se houver overrides de módulos)
        $themeModuleViewsPath = $baseDir . '/themes/' . $themeSlug . '/modules/index/views';
        if (is_dir($themeModuleViewsPath)) {
            $files = glob($themeModuleViewsPath . '/*.{twig,php}', GLOB_BRACE);
            foreach ($files as $file) {
                $filename = pathinfo($file, PATHINFO_FILENAME);
                if ($filename !== 'layout') {
                    $keys[] = $filename;
                }
            }
        }

        // 3. Coleta do Tema (Views genéricas na raiz do tema ou subpasta views)
        $themeRootViews = [
            $baseDir . '/themes/' . $themeSlug,
            $baseDir . '/themes/' . $themeSlug . '/views'
        ];
        foreach ($themeRootViews as $path) {
            if (is_dir($path)) {
                $files = glob($path . '/*.{twig,php}', GLOB_BRACE);
                foreach ($files as $file) {
                    $filename = pathinfo($file, PATHINFO_FILENAME);
                    // Ignorar arquivos de sistema e layouts
                    if (!in_array($filename, ['layout', 'header', 'footer', 'sidebar'])) {
                        $keys[] = $filename;
                    }
                }
            }
        }

        if (empty($keys)) {
            $keys = ['index', 'about', 'contact', 'services'];
        }

        return array_unique($keys);
    }

    /**
     * Show edit form
     */
    public function edit(Request $request, string $key): Response
    {
        $user = $this->getCurrentUser();
        if (!$user) {
            return new RedirectResponse(url('login'));
        }

        $theme = $request->query->get('theme', \Kernel\View::getActiveTheme() ?? 'default');
        $busId = $user->users_bus_id ?? 1;
        $page = ConfigPage::getByKey($key, $busId);

        $templateCode = null;
        $baseDir = dirname(dirname(dirname(dirname(__DIR__))));

        // Prioridade de busca do arquivo para edição:
        // 1. Override do módulo no tema selecionado
        $paths = [
            $baseDir . '/themes/' . $theme . '/modules/index/views/' . $key . '.twig',
            $baseDir . '/themes/' . $theme . '/modules/index/views/' . $key . '.php',
            $baseDir . '/themes/' . $theme . '/' . $key . '.twig',
            $baseDir . '/themes/' . $theme . '/' . $key . '.php',
            $baseDir . '/themes/' . $theme . '/views/' . $key . '.twig',
            $baseDir . '/themes/' . $theme . '/views/' . $key . '.php',
            $baseDir . '/modules/index/views/' . $key . '.twig',
            $baseDir . '/modules/index/views/' . $key . '.php',
        ];

        $foundPath = null;
        foreach ($paths as $path) {
            if (is_file($path)) {
                $templateCode = file_get_contents($path);
                $foundPath = $path;
                break;
            }
        }

        $languagesMap = [];

        // Locais de tradução: Módulo index + Tema selecionado
        $localesPaths = [
            $baseDir . '/modules/index/locales',
            $baseDir . '/themes/' . $theme . '/locales'
        ];

        foreach ($localesPaths as $base) {
            if (is_dir($base)) {
                foreach (glob($base . '/*', GLOB_ONLYDIR) as $dir) {
                    $languagesMap[basename($dir)] = true;
                }
            }
        }

        $languages = array_keys($languagesMap);
        if (empty($languages)) {
            $languages = ['pt_BR', 'en_US', 'es_ES', 'de_DE', 'fr_FR'];
        }
        sort($languages);

        $validKeys = $this->getPagesKeys($theme);

        $translationsIndexSection = [];
        foreach ($languages as $lang) {
            $langData = [];

            foreach ($localesPaths as $base) {
                $path = $base . '/' . $lang . '/index.json';
                if (is_file($path)) {
                    $decoded = json_decode(file_get_contents($path), true);
                    if (is_array($decoded)) {
                        $langData = array_merge($langData, $decoded);
                    }
                }
            }

            if ($key === 'index') {
                $indexData = [];
                foreach ($langData as $k => $v) {
                    if (!in_array($k, $validKeys) || $k === 'index') {
                        $indexData[$k] = $v;
                    }
                }
                $translationsIndexSection[$lang] = json_encode($indexData, JSON_UNESCAPED_UNICODE | JSON_PRETTY_PRINT);
            } elseif (isset($langData[$key])) {
                $translationsIndexSection[$lang] = json_encode($langData[$key], JSON_UNESCAPED_UNICODE | JSON_PRETTY_PRINT);
            } else {
                $translationsIndexSection[$lang] = json_encode(new \stdClass(), JSON_UNESCAPED_UNICODE | JSON_PRETTY_PRINT);
            }
        }

        return $this->renderAdminView('configindex/views/admin/edit.twig', [
            'title' => __('configindex.edit_title', ['page' => ucfirst($key)]),
            'page_key' => $key,
            'page_data' => $page,
            'template_code' => $templateCode,
            'languages' => $languages,
            'translations_index_section' => $translationsIndexSection,
            'currentTheme' => $theme,
            'foundPath' => $foundPath,
            'base_path' => $baseDir
        ]);
    }

    /**
     * Update page content
     */
    public function update(Request $request, string $key): Response
    {
        try {
            $user = $this->getCurrentUser();
            if (!$user) {
                return new RedirectResponse(url('login'));
            }

            $busId = $user->users_bus_id ?? 1;

            $data = $request->request->all();

            $page = ConfigPage::getByKey($key, $busId);

            if (!$page) {
                $page = new ConfigPage();
                $page->config_index_bus_id = $busId;
                $page->config_index_key = $key;
                $page->config_index_title = ucfirst($key);
                $page->config_index_meta_title = '';
                $page->config_index_meta_description = '';
            }

            if (isset($data['content'])) {
                $page->config_index_content = $data['content'];
            }
            $page->config_index_show_public_nav = !empty($data['config_index_show_public_nav']);
            $page->config_index_show_dashboard_nav = !empty($data['config_index_show_dashboard_nav']);

            $page->save();

            $codeToWrite = $data['content'] ?? ($data['template_code'] ?? null);
            if ($codeToWrite !== null) {
                $theme = $request->query->get('theme', \Kernel\View::getActiveTheme() ?? 'default');
                $baseDir = dirname(dirname(dirname(dirname(__DIR__))));

                // Determina o caminho de salvamento baseado no tema
                if ($theme === 'default') {
                    $templatePath = $baseDir . '/modules/index/views/' . $key . '.twig';
                    // Fallback para .php se já existir
                    if (!is_file($templatePath) && is_file(str_replace('.twig', '.php', $templatePath))) {
                        $templatePath = str_replace('.twig', '.php', $templatePath);
                    }
                } else {
                    // Para temas, salvamos no override do módulo dentro do tema
                    $templatePath = $baseDir . '/themes/' . $theme . '/modules/index/views/' . $key . '.twig';
                }

                $viewsDir = dirname($templatePath);
                if (!is_dir($viewsDir)) {
                    mkdir($viewsDir, 0755, true);
                }
                file_put_contents($templatePath, $codeToWrite);
            }

            // Update translations
            $translations = $request->request->all('translations_index_section');
            if (is_array($translations)) {
                $theme = $request->query->get('theme', \Kernel\View::getActiveTheme() ?? 'default');
                $baseDir = dirname(dirname(dirname(dirname(__DIR__))));

                // Salva no local apropriado (Módulo ou Tema)
                if ($theme === 'default') {
                    $localesBase = $baseDir . '/modules/index/locales';
                } else {
                    $localesBase = $baseDir . '/themes/' . $theme . '/locales';
                }

                foreach ($translations as $lang => $json) {
                    if ($json !== null && $json !== '') {
                        $section = json_decode($json, true);
                        if (is_array($section)) {
                            $savePath = $localesBase . '/' . $lang . '/index.json';
                            if (!is_dir(dirname($savePath))) {
                                mkdir(dirname($savePath), 0755, true);
                            }

                            $base = [];
                            if (is_file($savePath)) {
                                $base = json_decode(file_get_contents($savePath), true) ?: [];
                            }

                            if ($key === 'index') {
                                // Mescla chaves soltas na raiz, preservando outras páginas
                                $newBase = $section;
                                foreach ($base as $k => $v) {
                                    if (is_array($v) && $k !== 'index' && $k !== 'layout' && $k !== 'menu') {
                                        $newBase[$k] = $v;
                                    }
                                }
                                $base = $newBase;
                            } else {
                                // Salva na seção da página
                                $base[$key] = $section;
                            }

                            file_put_contents($savePath, json_encode($base, JSON_PRETTY_PRINT | JSON_UNESCAPED_UNICODE));
                        }
                    }
                }
            }

            try {
                \Kernel\Translator::setLocale(\Kernel\Translator::getLocale());
            } catch (\Throwable $e) {
            }

            $theme = $request->query->get('theme', \Kernel\View::getActiveTheme() ?? 'default');
            return new RedirectResponse(url('admin/configindex/' . $key . '/edit?theme=' . $theme . '&success=updated'));
        } catch (\Exception $e) {
            error_log("Error in ConfigIndexController::update: " . $e->getMessage());
            return new Response("Internal Server Error: " . $e->getMessage(), 500);
        }
    }

    /**
     * Toggle page visibility status
     */
    public function toggleStatus(Request $request, string $key): Response
    {
        $user = $this->getCurrentUser();
        if (!$user) {
            return new RedirectResponse(url('login'));
        }

        $busId = $user->users_bus_id ?? 1;
        $page = ConfigPage::getByKey($key, $busId);

        if ($page) {
            $page->config_index_show_public_nav = !$page->config_index_show_public_nav;
            $page->save();
        }

        return new RedirectResponse(url('admin/configindex?success=status_updated'));
    }

    /**
     * Delete page and associated files
     */
    public function destroy(Request $request, string $key): Response
    {
        $user = $this->getCurrentUser();
        if (!$user) {
            return new RedirectResponse(url('login'));
        }

        // Não permitir excluir a home (index)
        if ($key === 'index') {
            return new RedirectResponse(url('admin/configindex?error=cannot_delete_home'));
        }

        $busId = $user->users_bus_id ?? 1;
        $page = ConfigPage::getByKey($key, $busId);

        if ($page) {
            $page->delete();
        }

        // Remover arquivos físicos (.twig)
        $viewsPath = dirname(__DIR__, 3) . '/index/views';
        $templatePath = $viewsPath . '/' . $key . '.twig';
        if (is_file($templatePath)) {
            unlink($templatePath);
        }

        // Remover de .php se existir
        $phpPath = $viewsPath . '/' . $key . '.php';
        if (is_file($phpPath)) {
            unlink($phpPath);
        }

        // Remover traduções dos arquivos index.json
        $localesPath = dirname(__DIR__, 3) . '/index/locales';
        $languages = ['pt_BR', 'en_US', 'es_ES', 'de_DE', 'fr_FR'];

        foreach ($languages as $lang) {
            $savePath = $localesPath . '/' . $lang . '/index.json';
            if (is_file($savePath)) {
                $base = json_decode(file_get_contents($savePath), true) ?: [];
                if (isset($base[$key])) {
                    unset($base[$key]);
                    file_put_contents($savePath, json_encode($base, JSON_PRETTY_PRINT | JSON_UNESCAPED_UNICODE));
                }
            }
        }

        return new RedirectResponse(url('admin/configindex?success=deleted'));
    }
}