<?php

namespace App\Http\Controllers;

use App\Contracts\PhoneNumberNormalizerInterface;
use App\Models\ContactPhoneNumber;
use Illuminate\Http\JsonResponse;
use Illuminate\Http\Request;

class OvhStopCallbackController extends Controller
{
    public function __invoke(Request $request, PhoneNumberNormalizerInterface $normalizer): JsonResponse
    {
        $configuredToken = trim((string) config('relais_sms.ovh.stop_callback_token', ''));
        $receivedToken = trim((string) ($request->query('token') ?: $request->header('X-RelaisSMS-Callback-Token', '')));

        abort_if($configuredToken === '' || ! hash_equals($configuredToken, $receivedToken), 403);

        $sender = $this->sender($request);

        if ($sender === '') {
            return response()->json([
                'status' => 'ignored',
                'reason' => 'missing_sender',
            ], 422);
        }

        $result = $normalizer->normalize(
            $sender,
            (string) config('relais_sms.default_settings.default_country'),
        );

        if (! $result->isValid || $result->normalizedNumber === null) {
            return response()->json([
                'status' => 'ignored',
                'reason' => 'invalid_sender',
            ], 422);
        }

        $contacts = ContactPhoneNumber::query()
            ->with('contact')
            ->where('normalized_number', $result->normalizedNumber)
            ->get()
            ->pluck('contact')
            ->filter()
            ->unique('id')
            ->values();

        $updatedContacts = 0;
        $alreadyOptedOutContacts = 0;

        foreach ($contacts as $contact) {
            if ($contact->sms_opt_out) {
                $alreadyOptedOutContacts++;

                continue;
            }

            $contact->update(['sms_opt_out' => true]);
            $updatedContacts++;
        }

        return response()->json([
            'status' => $contacts->isEmpty() ? 'unmatched' : 'ok',
            'sender' => $result->normalizedNumber,
            'updated_contacts' => $updatedContacts,
            'already_opted_out_contacts' => $alreadyOptedOutContacts,
        ]);
    }

    private function sender(Request $request): string
    {
        foreach (['sender', 'from', 'number', 'phone', 'msisdn'] as $key) {
            $value = $request->input($key);

            if (is_string($value) && trim($value) !== '') {
                return trim($value);
            }
        }

        return '';
    }
}