<?php

namespace App\Http\Controllers\Public;

use App\Http\Controllers\Controller;
use App\Models\QrCode;
use App\Services\Qr\QrScanRecorder;
use Illuminate\Http\RedirectResponse;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\Storage;
use Illuminate\Support\Str;
use Illuminate\View\View;
use Symfony\Component\HttpFoundation\StreamedResponse;

class QrScanController extends Controller
{
    public function __construct(
        private QrScanRecorder $scanRecorder,
    ) {}

    public function resolve(Request $request, string $shortCode): RedirectResponse|View
    {
        $qrCode = QrCode::query()->where('short_code', $shortCode)->firstOrFail();

        $this->scanRecorder->record($qrCode, $request);

        if (! $qrCode->is_active) {
            return view('public.qr.inactive', ['qrCode' => $qrCode]);
        }

        if ($qrCode->resolvesToRedirect()) {
            $url = $qrCode->redirectUrl();
            abort_unless($url, 404);

            return redirect()->away($url);
        }

        if ($qrCode->isDocumentType()) {
            return redirect()->route('qr.public.view', $shortCode);
        }

        if ($qrCode->isBookType()) {
            return view('public.qr.book-landing', ['qrCode' => $qrCode]);
        }

        if ($qrCode->usesLandingPage()) {
            return view('public.qr.landing', ['qrCode' => $qrCode]);
        }

        abort(404);
    }

    public function view(string $shortCode): View
    {
        $qrCode = QrCode::query()
            ->where('short_code', $shortCode)
            ->where('is_active', true)
            ->with('document')
            ->firstOrFail();

        abort_unless($qrCode->isDocumentType() && $qrCode->document, 404);

        return view('public.qr.document-viewer', [
            'qrCode'       => $qrCode,
            'fileUrl'      => route('qr.public.file', $shortCode),
            'allowDownload' => (bool) ($qrCode->content()['allow_download'] ?? true),
        ]);
    }

    public function file(string $shortCode): StreamedResponse
    {
        $qrCode = QrCode::query()
            ->where('short_code', $shortCode)
            ->where('is_active', true)
            ->with('document')
            ->firstOrFail();

        $document = $qrCode->document;
        abort_unless($document && Storage::disk($document->disk)->exists($document->path), 404);

        return Storage::disk($document->disk)->response(
            $document->path,
            ($document->title ?: 'document') . '.pdf',
            ['Content-Type' => 'application/pdf'],
        );
    }

    public function image(string $shortCode, int $index): StreamedResponse
    {
        $qrCode = QrCode::query()
            ->where('short_code', $shortCode)
            ->where('is_active', true)
            ->firstOrFail();

        abort_unless($qrCode->isImageType(), 404);

        $images = $qrCode->content()['images'] ?? [];
        abort_unless(isset($images[$index]['path']), 404);

        $path = $images[$index]['path'];
        abort_unless(Storage::disk('qr')->exists($path), 404);

        return Storage::disk('qr')->response($path);
    }

    public function itemImage(string $shortCode, int $sectionIndex, int $itemIndex): StreamedResponse
    {
        $qrCode = QrCode::query()
            ->where('short_code', $shortCode)
            ->where('is_active', true)
            ->firstOrFail();

        abort_unless(in_array($qrCode->type, [QrCode::TYPE_MENU, QrCode::TYPE_SHOP], true), 404);

        $sections = $qrCode->content()['sections'] ?? [];
        $path = $sections[$sectionIndex]['items'][$itemIndex]['image_path'] ?? null;
        abort_unless($path && Storage::disk('qr')->exists($path), 404);

        return Storage::disk('qr')->response($path);
    }

    public function vcard(string $shortCode): StreamedResponse
    {
        $qrCode = QrCode::query()
            ->where('short_code', $shortCode)
            ->where('is_active', true)
            ->firstOrFail();

        abort_unless($qrCode->type === QrCode::TYPE_VCARD, 404);

        $c = $qrCode->content();
        $lines = [
            'BEGIN:VCARD',
            'VERSION:3.0',
            'N:' . ($c['last_name'] ?? '') . ';' . ($c['first_name'] ?? '') . ';;;',
            'FN:' . trim(($c['first_name'] ?? '') . ' ' . ($c['last_name'] ?? '')),
        ];

        if (! empty($c['company'])) {
            $lines[] = 'ORG:' . $this->escapeVcard($c['company']);
        }
        if (! empty($c['phone'])) {
            $lines[] = 'TEL;TYPE=CELL:' . $this->escapeVcard($c['phone']);
        }
        if (! empty($c['email'])) {
            $lines[] = 'EMAIL;TYPE=INTERNET:' . $this->escapeVcard($c['email']);
        }
        if (! empty($c['website'])) {
            $lines[] = 'URL:' . $this->escapeVcard($c['website']);
        }
        if (! empty($c['address'])) {
            $lines[] = 'ADR;TYPE=WORK:;;' . $this->escapeVcard($c['address']) . ';;;;';
        }
        if (! empty($c['note'])) {
            $lines[] = 'NOTE:' . $this->escapeVcard($c['note']);
        }

        $lines[] = 'END:VCARD';
        $vcf = implode("\r\n", $lines) . "\r\n";
        $filename = Str::slug($qrCode->label ?: 'contact') . '.vcf';

        return response()->streamDownload(fn () => print($vcf), $filename, [
            'Content-Type' => 'text/vcard',
        ]);
    }

    public function vcardAvatar(string $shortCode): StreamedResponse
    {
        $qrCode = QrCode::query()
            ->where('short_code', $shortCode)
            ->where('is_active', true)
            ->firstOrFail();

        abort_unless($qrCode->type === QrCode::TYPE_VCARD, 404);

        $path = $qrCode->content()['avatar_path'] ?? null;
        abort_unless($path && Storage::disk('qr')->exists($path), 404);

        return Storage::disk('qr')->response($path);
    }

    public function bookCover(string $shortCode): StreamedResponse
    {
        $qrCode = QrCode::query()
            ->where('short_code', $shortCode)
            ->where('is_active', true)
            ->firstOrFail();

        abort_unless($qrCode->isBookType(), 404);

        $path = $qrCode->content()['cover_path'] ?? null;
        abort_unless($path && Storage::disk('qr')->exists($path), 404);

        return Storage::disk('qr')->response($path);
    }

    public function menuLogo(string $shortCode): StreamedResponse
    {
        $qrCode = QrCode::query()
            ->where('short_code', $shortCode)
            ->where('is_active', true)
            ->firstOrFail();

        abort_unless(in_array($qrCode->type, [QrCode::TYPE_MENU, QrCode::TYPE_SHOP], true), 404);

        $path = $qrCode->content()['logo_path'] ?? null;
        abort_unless($path && Storage::disk('qr')->exists($path), 404);

        return Storage::disk('qr')->response($path);
    }

    public function menuCover(string $shortCode): StreamedResponse
    {
        $qrCode = QrCode::query()
            ->where('short_code', $shortCode)
            ->where('is_active', true)
            ->firstOrFail();

        abort_unless(in_array($qrCode->type, [QrCode::TYPE_MENU, QrCode::TYPE_SHOP], true), 404);

        $path = $qrCode->content()['cover_path'] ?? null;
        abort_unless($path && Storage::disk('qr')->exists($path), 404);

        return Storage::disk('qr')->response($path);
    }

    public function businessLogo(string $shortCode): StreamedResponse
    {
        $qrCode = QrCode::query()
            ->where('short_code', $shortCode)
            ->where('is_active', true)
            ->firstOrFail();

        abort_unless($qrCode->type === QrCode::TYPE_BUSINESS, 404);

        $path = $qrCode->content()['logo_path'] ?? null;
        abort_unless($path && Storage::disk('qr')->exists($path), 404);

        return Storage::disk('qr')->response($path);
    }

    public function businessCover(string $shortCode): StreamedResponse
    {
        $qrCode = QrCode::query()
            ->where('short_code', $shortCode)
            ->where('is_active', true)
            ->firstOrFail();

        abort_unless($qrCode->type === QrCode::TYPE_BUSINESS, 404);

        $path = $qrCode->content()['cover_path'] ?? null;
        abort_unless($path && Storage::disk('qr')->exists($path), 404);

        return Storage::disk('qr')->response($path);
    }

    public function churchLogo(string $shortCode): StreamedResponse
    {
        $qrCode = QrCode::query()
            ->where('short_code', $shortCode)
            ->where('is_active', true)
            ->firstOrFail();

        abort_unless($qrCode->type === QrCode::TYPE_CHURCH, 404);

        $path = $qrCode->content()['logo_path'] ?? null;
        abort_unless($path && Storage::disk('qr')->exists($path), 404);

        return Storage::disk('qr')->response($path);
    }

    public function churchCover(string $shortCode): StreamedResponse
    {
        $qrCode = QrCode::query()
            ->where('short_code', $shortCode)
            ->where('is_active', true)
            ->firstOrFail();

        abort_unless($qrCode->type === QrCode::TYPE_CHURCH, 404);

        $path = $qrCode->content()['cover_path'] ?? null;
        abort_unless($path && Storage::disk('qr')->exists($path), 404);

        return Storage::disk('qr')->response($path);
    }

    public function eventLogo(string $shortCode): StreamedResponse
    {
        return $this->serveContentImage($shortCode, QrCode::TYPE_EVENT, 'logo_path');
    }

    public function eventCover(string $shortCode): StreamedResponse
    {
        return $this->serveContentImage($shortCode, QrCode::TYPE_EVENT, 'cover_path');
    }

    public function itineraryCover(string $shortCode): StreamedResponse
    {
        return $this->serveContentImage($shortCode, QrCode::TYPE_ITINERARY, 'cover_path');
    }

    private function serveContentImage(string $shortCode, string $type, string $key): StreamedResponse
    {
        $qrCode = QrCode::query()
            ->where('short_code', $shortCode)
            ->where('is_active', true)
            ->firstOrFail();

        abort_unless($qrCode->type === $type, 404);

        $path = $qrCode->content()[$key] ?? null;
        abort_unless($path && Storage::disk('qr')->exists($path), 404);

        return Storage::disk('qr')->response($path);
    }

    public function appIcon(string $shortCode): StreamedResponse
    {
        $qrCode = QrCode::query()
            ->where('short_code', $shortCode)
            ->where('is_active', true)
            ->firstOrFail();

        abort_unless($qrCode->type === QrCode::TYPE_APP, 404);

        $path = $qrCode->content()['icon_path'] ?? null;
        abort_unless($path && Storage::disk('qr')->exists($path), 404);

        return Storage::disk('qr')->response($path);
    }

    private function escapeVcard(string $value): string
    {
        return str_replace(["\n", "\r", ',', ';'], [' ', ' ', '\\,', '\\;'], $value);
    }
}