<?php

namespace App\Http\Controllers;

use App\Models\Tenant\WorkOrder;
use App\Models\Tenant\WorkOrderPart;
use App\Models\Tenant\WorkOrderWork;
use App\Tenancy\TenantManager;
use Illuminate\Http\Request;
use Symfony\Component\HttpKernel\Exception\NotFoundHttpException;

class TrackingController extends Controller
{
    /**
     * Public WO tracking page — accessed via QR code or SMS link.
     */
    public function show(Request $request, string $token)
    {
        $tenant = app(TenantManager::class)->current();
        if (! $tenant) {
            throw new NotFoundHttpException('Tracking only available on tenant subdomain.');
        }

        $wo = WorkOrder::with(['client', 'vehicle', 'master', 'media', 'works', 'parts'])
            ->where('tracking_token', $token)
            ->first();

        if (! $wo) {
            throw new NotFoundHttpException('Fișa nu a fost găsită.');
        }

        $pendingWorks = $wo->works->filter(fn ($w) => $w->isPendingApproval());
        $pendingParts = $wo->parts->filter(fn ($p) => $p->isPendingApproval());

        return view('tracking.show', [
            'wo' => $wo,
            'tenant' => $tenant,
            'photos' => $wo->getMedia('photos'),
            'pendingWorks' => $pendingWorks,
            'pendingParts' => $pendingParts,
            'approvalStatus' => $request->session()->pull('approval_status'),
        ]);
    }

    /**
     * Client approves or declines a pending work/part line via the unique
     * approval_token. The line's approval_token IS the credential — anyone
     * with the URL can act (clients won't share it).
     */
    public function approve(Request $request, string $token, string $kind, string $lineToken)
    {
        $tenant = app(TenantManager::class)->current();
        if (! $tenant) throw new NotFoundHttpException();

        $wo = WorkOrder::where('tracking_token', $token)->first();
        if (! $wo) throw new NotFoundHttpException();

        $decision = $request->input('decision', 'approve');

        $line = match ($kind) {
            'work' => WorkOrderWork::where('work_order_id', $wo->id)->where('approval_token', $lineToken)->first(),
            'part' => WorkOrderPart::where('work_order_id', $wo->id)->where('approval_token', $lineToken)->first(),
            default => null,
        };
        if (! $line || ! $line->isPendingApproval()) {
            $request->session()->flash('approval_status', ['kind' => 'error', 'message' => 'Linia nu mai necesită aprobare.']);
            return redirect()->route('tracking.show', ['token' => $token]);
        }

        if ($decision === 'approve') {
            $line->forceFill(['approved_at' => now()])->save();
            $msg = '✅ Lucrarea „' . $line->name . '" a fost aprobată. Mulțumim!';
        } else {
            $line->forceFill(['declined_at' => now()])->save();
            $msg = '❌ Lucrarea „' . $line->name . '" a fost respinsă. Vă vom contacta.';
        }

        $request->session()->flash('approval_status', ['kind' => 'success', 'message' => $msg]);
        return redirect()->route('tracking.show', ['token' => $token]);
    }

    public function qr(Request $request, string $token)
    {
        $tenant = app(TenantManager::class)->current();
        if (! $tenant) {
            throw new NotFoundHttpException();
        }
        $wo = WorkOrder::where('tracking_token', $token)->first();
        if (! $wo) {
            throw new NotFoundHttpException();
        }

        $options = new \chillerlan\QRCode\QROptions([
            'outputType' => \chillerlan\QRCode\QRCode::OUTPUT_MARKUP_SVG,
            'eccLevel' => \chillerlan\QRCode\QRCode::ECC_M,
            'scale' => 6,
            'imageBase64' => false,
            'svgViewBoxSize' => 200,
            'addQuietzone' => true,
        ]);

        $svg = (new \chillerlan\QRCode\QRCode($options))->render($wo->trackingUrl());

        return response($svg, 200, [
            'Content-Type' => 'image/svg+xml',
            'Cache-Control' => 'public, max-age=3600',
        ]);
    }
}