<?php

namespace Modules\Chatbot\Http\Controllers;

use App\Http\Controllers\Controller;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\Http;
use Illuminate\Http\Client\ConnectionException;
use Illuminate\Http\Client\RequestException;

class ChatbotController extends Controller
{
    public function index()
    {
        return view('chatbot::index');
    }

    public function create()
    {
        return view('chatbot::create');
    }

    public function store(Request $request)
    {
        //
    }

    public function show($id)
    {
        return view('chatbot::show');
    }

    public function edit($id)
    {
        return view('chatbot::edit');
    }

    public function update(Request $request, $id)
    {
        //
    }

    public function destroy($id)
    {
        //
    }

    public function queryold(Request $request)
    {
        $message = $request->input('message');
        return response()->json(['reply' => 'You said: ' . $message]);
    }

    // public function query(Request $request)
    // {
    //     $request->validate([
    //         'message' => 'required|string'
    //     ]);

    //     // 1) Pull the current contact details from settings
    //     $phone    = setting('phone');    // e.g. "5344710"
    //     $email    = setting('email');    // e.g. "info@rohini.edu.np"
    //     $address  = setting('address');  // e.g. "House #160, Adwait Marg, Putalisadak, Kathmandu, Nepal"
    //     $facebook = setting('facebook'); // if you have this
    //     $whatsapp = setting('whatsapp'); // if you have this

    //     $userMessage = trim($request->message);

    //     // 2) Build a system prompt that *includes* your real contact info
    //     $systemContents = <<<EOT
    //     You are an assistant for Rohini International Education Services in Nepal.
    //     Use *only* the following facts when answering:

    //     • Website: https://rohini.edu.np/
    //     • Phone: {$phone}
    //     • Email: {$email}
    //     • Address: {$address}
    //     EOT;

    //             // 3) Prepare the message payload
    //             $messages = [
    //                 ['role' => 'system',  'content' => $systemContents],
    //                 ['role' => 'user',    'content' => $userMessage],
    //             ];

    //             // 4) Call the AI as before
    //             try {
    //                 $response = Http::timeout(60)
    //                     ->retry(2, 100)
    //                     ->withToken(config('services.openrouter.key'))
    //                     ->post('https://openrouter.ai/api/v1/chat/completions', [
    //                         'model'    => 'deepseek/deepseek-r1:free',
    //                         'messages' => $messages,
    //                     ]);

    //                 $response->throw();

    //                 // 5) Return exactly what the AI gave, knowing the system prompt constrained it
    //                 return response()->json([
    //                     'reply' => $response->json('choices.0.message.content') ?? 'No response from assistant.'
    //                 ]);
    //             } catch (ConnectionException $e) {
    //                 return response()->json([
    //                     'reply' => 'Sorry, I could not connect to the AI service. Please try again later.'
    //                 ], 504);
    //             } catch (RequestException $e) {
    //                 $msg = $e->response->json('error.message') ?? $e->getMessage();
    //                 return response()->json([
    //                     'reply' => 'Sorry, an error occurred. Please try again later.',
    //                     'error' => $msg
    //                 ], 500);
    //             }
    // }

    public function query(Request $request)
{
    $request->validate([
        'message' => 'required|string'
    ]);

    // Company info
    $phone      = setting('phone');
    $email      = setting('email');
    $address    = setting('location');
    $whatsapp   = setting('whatsapp');
    $instagram  = setting('instagram');
    $youtube    = setting('youtube');
    $tiktok     = setting('tiktok');

    $userMessage = strtolower(trim($request->message));

    $companyInfo = "\n\nFor more information, visit <a href=\"https://rohini.edu.np/\" target=\"_blank\">https://rohini.edu.np/</a> or contact us: Phone: <a href=\"tel:{$phone}\">{$phone}</a>, Email: <a href=\"mailto:{$email}\">{$email}</a>, WhatsApp: <a href=\"{$whatsapp}\" target=\"_blank\">{$whatsapp}</a>.";


    // Define topics instead of strict questions
    $topics = [
        'greeting' => [
            'keywords' => ['hi','hello','hey','good morning','good afternoon','good evening'],
            'response' => 'Hello! How can I assist you with your study abroad plans today?'
        ],
        'company_info' => [
            'keywords' => ['rohini', 'about us', 'who are you', 'information'],
            'response' => 'Rohini International Education Services is a Nepal-based consultancy specializing in guiding students who want to study in New Zealand.'
        ],
        'location' => [
            'keywords' => ['location','located','where'],
            'response' => "Our Kathmandu office is at {$address}."
        ],
        'contact' => [
            'keywords' => ['contact','support','call','email','whatsapp'],
            'response' => "You can call us at {$phone}, email at {$email}, or message on WhatsApp at {$whatsapp}."
        ],
        'services' => [
            'keywords' => ['service','services','what do you offer','help','assistance','counseling','visa','course','accommodation'],
            'response' => 'We provide counseling, university & course selection, visa support, documentation help, pre-departure briefings, financial & scholarship guidance, and accommodation support for students going to New Zealand.'
        ],
        'test_preparation' => [
            'keywords' => ['ielts','pte','test','exam','preparation','coaching','classes'],
            'response' => 'Yes, we offer IELTS and PTE preparation with experienced instructors.'
        ],
        'application_process' => [
            'keywords' => ['process','apply','application','visa','eligibility','documents'],
            'response' => 'We guide students through course selection, eligibility, document preparation, visa application, and departure preparation.'
        ],
        'new_zealand_education' => [
            'keywords' => ['new zealand','study in new zealand','higher education','university','study abroad','post study','work opportunities', 'newzealand'],
            'response' => 'New Zealand offers globally recognized qualifications, high-quality education, a safe environment, and post-study work opportunities.'
        ],
        'accommodation' => [
            'keywords' => ['hostel','homestay','flat','housing','accommodation','stay'],
            'response' => 'Students can choose shared flats, homestays, hostels, or on-campus housing. We assist in finding the right option.'
        ],
        'social_media' => [
            'keywords' => ['social media','instagram','youtube','tiktok','follow','socials','facebook'],
            'response' => "Follow us on <a href=\"{$instagram}\" target=\"_blank\">Instagram</a>, <a href=\"{$youtube}\" target=\"_blank\">Youtube</a>, <a href=\"{$tiktok}\" target=\"_blank\">Tiktok</a>."
        ],

    ];

    // Match by topic keywords
    foreach ($topics as $topic) {
        foreach ($topic['keywords'] as $keyword) {
            if (str_contains($userMessage, strtolower($keyword))) {
                return response()->json(['reply' => $topic['response'] . $companyInfo]);
            }
        }
    }

    // Fallback for unknown queries: just show company info
    return response()->json([
        'reply' => "I'm here to help with questions about Rohini International Education Services and studying in New Zealand." . $companyInfo
    ]);
}

}