<?php

declare(strict_types=1);

namespace App\Http\Middleware;

use App\Models\Event;
use App\Models\Scopes\OrganisationScope;
use Closure;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\DB;
use Symfony\Component\HttpFoundation\Response;

final class PortalTokenMiddleware
{
    public function handle(Request $request, Closure $next): Response
    {
        $plainToken = $this->extractToken($request);

        if ($plainToken === null) {
            return response()->json(['message' => 'Portal token required.'], 401);
        }

        $hashedToken = hash('sha256', $plainToken);

        // Artist portal token lives on artist_engagements (per RFC-TIMETABLE
        // v0.2 §5.3); resolve to the engagement's event.
        $engagement = DB::table('artist_engagements')->where('portal_token', $hashedToken)->first();

        if ($engagement) {
            $event = Event::withoutGlobalScope(OrganisationScope::class)->find($engagement->event_id);

            if (! $event || in_array($event->status, ['draft', 'closed'], true)) {
                return response()->json(['message' => 'Portal token required.'], 401);
            }

            $request->attributes->set('portal_context', 'artist');
            $request->attributes->set('portal_person', $engagement);
            $request->attributes->set('portal_event', $event);

            return $next($request);
        }

        // Try production_requests table (may not exist yet)
        try {
            $productionRequest = DB::table('production_requests')->where('token', $hashedToken)->first();

            if ($productionRequest) {
                $event = Event::withoutGlobalScope(OrganisationScope::class)->find($productionRequest->event_id);

                if (! $event || in_array($event->status, ['draft', 'closed'], true)) {
                    return response()->json(['message' => 'Portal token required.'], 401);
                }

                $request->attributes->set('portal_context', 'supplier');
                $request->attributes->set('portal_person', $productionRequest);
                $request->attributes->set('portal_event', $event);

                return $next($request);
            }
        } catch (\Illuminate\Database\QueryException) {
            // Table doesn't exist yet — skip
        }

        return response()->json(['message' => 'Portal token required.'], 401);
    }

    private function extractToken(Request $request): ?string
    {
        // Check Authorization: Bearer header
        $bearer = $request->bearerToken();
        if ($bearer !== null && $bearer !== '') {
            return $bearer;
        }

        // Check query parameter
        $queryToken = $request->query('token');
        if (is_string($queryToken) && $queryToken !== '') {
            return $queryToken;
        }

        return null;
    }
}