<?php

namespace Modules\Contact\Controllers;

use App\Controllers\BaseAdminController;
use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\HttpFoundation\Response;
use Symfony\Component\HttpFoundation\RedirectResponse;
use Symfony\Component\HttpFoundation\JsonResponse;
use Modules\Contact\Models\Contact;

class ContactController extends BaseAdminController
{
    /**
     * Display contact form for public
     */
    public function index(Request $request): Response
    {
        $requireCaptcha = $this->getSetting('require_captcha_contact', true);

        $pageContent = null;
        $metaTitle = null;
        $metaDescription = null;
        $title = 'Contact Us';

        if (class_exists('Modules\Configindex\Models\ConfigPage')) {
            try {
                $page = \Modules\Configindex\Models\ConfigPage::getByKey('contact', 1);
                if ($page) {
                    $pageContent = $page->config_index_content;
                    if ($page->config_index_title) {
                        $title = $page->config_index_title;
                    }
                    $metaTitle = $page->config_index_meta_title;
                    $metaDescription = $page->config_index_meta_description;
                }
            } catch (\Exception $e) {
                // Ignore if table not found or other error
            }
        }

        return new Response($this->view->render('contact/views/index.twig', [
            'title' => $title,
            'page_content' => $pageContent,
            'meta_title' => $metaTitle,
            'meta_description' => $metaDescription,
            'require_captcha_contact' => $requireCaptcha
        ]));
    }

    /**
     * Process contact form submission
     */
    public function submit(Request $request): Response
    {
        // Handle JSON request body
        if ($request->getContentType() === 'json' || 0 === strpos($request->headers->get('Content-Type'), 'application/json')) {
            $data = json_decode($request->getContent(), true) ?? [];
        } else {
            $data = $request->request->all();
        }

        // Basic validation
        if (empty($data['name']) || empty($data['email']) || empty($data['subject']) || empty($data['message'])) {
            if ($request->headers->get('Accept') === 'application/json') {
                return new JsonResponse([
                    'success' => false,
                    'message' => 'Please fill in all required fields.'
                ], 400);
            }

            return new RedirectResponse(url('/contact?error=missing_fields'));
        }

        // Email format validation
        if (!filter_var($data['email'], FILTER_VALIDATE_EMAIL)) {
            if ($request->headers->get('Accept') === 'application/json') {
                return new JsonResponse([
                    'success' => false,
                    'message' => 'Please provide a valid email address.'
                ], 400);
            }

            return new RedirectResponse(url('/contact?error=invalid_email'));
        }

        // Captcha validation
        $requireCaptcha = $this->getSetting('require_captcha_contact', true);
        if ($requireCaptcha && empty($data['captcha_valid'])) {
            if ($request->headers->get('Accept') === 'application/json') {
                return new JsonResponse([
                    'success' => false,
                    'message' => 'Invalid captcha. Please try again.'
                ], 400);
            }

            return new RedirectResponse(url('/contact?error=invalid_captcha'));
        }

        // Create contact record
        $contact = new Contact();
        $contact->contacts_name = $data['name'];
        $contact->contacts_email = $data['email'];
        $contact->contacts_phone = $data['phone'] ?? '';
        $contact->contacts_subject = apply_filters('contact.subject_sanitize', $data['subject']);
        $contact->contacts_message = apply_filters('contact.message_sanitize', $data['message']);
        $contact->contacts_status = 'new';
        $contact->contacts_ip_address = $request->getClientIp();
        $contact->contacts_user_agent = $request->headers->get('User-Agent');
        $contact->save();

        do_action('contact.submitted', $contact);

        if ($request->headers->get('Accept') === 'application/json') {
            return new JsonResponse([
                'success' => true,
                'message' => 'Your message has been sent successfully. We will get back to you soon!'
            ]);
        }

        return new RedirectResponse(url('/contact?success=true'));
    }

    /**
     * Display list of contacts for admin
     */
    public function list(Request $request): Response
    {
        $status = $request->query->get('status', 'all');
        $contacts = Contact::query();

        if ($status === 'unread') {
            $contacts = $contacts->unread();
        } elseif ($status === 'read') {
            $contacts = $contacts->read();
        } elseif ($status !== 'all') {
            $contacts = $contacts->status($status);
        }

        $contacts = $contacts->orderBy('created_at', 'desc')->get();

        return $this->renderAdminView('contact/views/admin/index.twig', [
            'contacts' => $contacts,
            'current_status' => $status,
            'title' => 'Contact Messages Management'
        ]);
    }

    /**
     * Display contact details
     */
    public function show(Request $request, int $id): Response
    {
        $contact = Contact::find($id);

        if (!$contact) {
            return new RedirectResponse(url('admin/contacts?error=not_found'));
        }

        // Mark as read if it's unread
        if (!$contact->isRead()) {
            $contact->markAsRead();
        }

        return $this->renderAdminView('contact/views/admin/show.twig', [
            'contact' => $contact,
            'title' => 'Contact Message Details'
        ]);
    }

    /**
     * Update contact status
     */
    public function updateStatus(Request $request, int $id): Response
    {
        $contact = Contact::find($id);

        if (!$contact) {
            if ($request->headers->get('Accept') === 'application/json') {
                return new JsonResponse([
                    'success' => false,
                    'message' => 'Contact not found.'
                ], 404);
            }

            return new RedirectResponse(url('admin/contacts?error=not_found'));
        }

        $status = $request->request->get('status');
        $validStatuses = ['new', 'in_progress', 'resolved', 'closed'];

        if (!in_array($status, $validStatuses)) {
            if ($request->headers->get('Accept') === 'application/json') {
                return new JsonResponse([
                    'success' => false,
                    'message' => 'Invalid status.'
                ], 400);
            }

            return new RedirectResponse(url('admin/contacts?error=invalid_status'));
        }

        $contact->contacts_status = $status;
        $contact->save();

        if ($request->headers->get('Accept') === 'application/json') {
            return new JsonResponse([
                'success' => true,
                'message' => 'Contact status updated successfully.'
            ]);
        }

        return new RedirectResponse(url('admin/contacts/' . $id));
    }

    /**
     * Update contact response
     */
    public function updateResponse(Request $request, int $id): Response
    {
        $contact = Contact::find($id);

        if (!$contact) {
            return new RedirectResponse(url('admin/contacts?error=not_found'));
        }

        $response = $request->request->get('response');
        $contact->contacts_response = $response;

        // Auto update status if it is 'new'
        if ($contact->contacts_status === 'new' && !empty($response)) {
            $contact->contacts_status = 'resolved';
        }

        $contact->save();

        return new RedirectResponse(url('admin/contacts/' . $id . '?success=response_saved'));
    }

    /**
     * Delete contact
     */
    public function delete(Request $request, int $id): Response
    {
        $contact = Contact::find($id);

        if (!$contact) {
            if ($request->headers->get('Accept') === 'application/json') {
                return new JsonResponse([
                    'success' => false,
                    'message' => 'Contact not found.'
                ], 404);
            }

            return new RedirectResponse(url('admin/contacts?error=not_found'));
        }

        $contact->delete();

        if ($request->headers->get('Accept') === 'application/json') {
            return new JsonResponse([
                'success' => true,
                'message' => 'Contact deleted successfully.'
            ]);
        }

        return new RedirectResponse(url('admin/contacts'));
    }

    /**
     * Mark contact as read/unread
     */
    public function toggleRead(Request $request, int $id): Response
    {
        $contact = Contact::find($id);

        if (!$contact) {
            if ($request->headers->get('Accept') === 'application/json') {
                return new JsonResponse([
                    'success' => false,
                    'message' => 'Contact not found.'
                ], 404);
            }

            return new RedirectResponse(url('admin/contacts?error=not_found'));
        }

        if ($contact->isRead()) {
            $contact->markAsUnread();
            $message = 'Contact marked as unread.';
        } else {
            $contact->markAsRead();
            $message = 'Contact marked as read.';
        }

        if ($request->headers->get('Accept') === 'application/json') {
            return new JsonResponse([
                'success' => true,
                'message' => $message,
                'is_read' => $contact->isRead()
            ]);
        }

        return new RedirectResponse(url('admin/contacts/' . $id));
    }

    /**
     * Get contact module setting
     */
    private function getSetting(string $key, $default = null)
    {
        try {
            $module = \App\Models\Module::byName('contact')->first();
            if ($module) {
                return $module->getSetting($key, $default);
            }
        } catch (\Throwable $e) {
        }
        return $default;
    }
}