<?php

namespace Controllers;

use Libs\ResponseLib;
use Models\TshieldWebhookModel;
use Psr\Http\Message\ServerRequestInterface;

class TshieldWebhookController
{
    private TshieldWebhookModel $model;

    public function __construct()
    {
        $this->model = new TshieldWebhookModel();
    }

    public function __invoke(ServerRequestInterface $request)
    {
        $body = json_decode((string)$request->getBody(), true);

        if (!is_array($body)) {
            return ResponseLib::sendFail('Invalid JSON payload.', [], 'E_VALIDATE')->withStatus(400);
        }

        error_log('[TShieldWebhook] payload=' . json_encode($body, JSON_UNESCAPED_SLASHES | JSON_UNESCAPED_UNICODE));

        $statusDescription = $body['status']['status']
            ?? $body['status']
            ?? ($body['data']['status']['status'] ?? null);
        $statusNormalized = is_string($statusDescription) ? mb_strtolower(trim($statusDescription)) : '';
        $isApproved = $statusNormalized === 'aprovado'
            || $statusNormalized === 'aprovada'
            || (is_string($statusNormalized) && str_contains($statusNormalized, 'aprov'));
        if (!$isApproved) {
            return ResponseLib::sendOk([
                'processed' => false,
                'reason' => 'Status not approved. No action taken.',
                'status' => $statusDescription,
            ], 'S_IGNORED');
        }

        $externalIds = [
            $body['number'] ?? null,
            $body['token'] ?? null,
            $body['data']['number'] ?? null,
            $body['data']['token'] ?? null,
            $body['analysis']['number'] ?? null,
            $body['analysis']['token'] ?? null,
            $body['query']['number'] ?? null,
            $body['query']['token'] ?? null,
        ];

        $externalNumber = null;
        foreach ($externalIds as $candidate) {
            if (is_numeric($candidate)) {
                $candidate = (string)$candidate;
            }
            if (!is_string($candidate)) {
                continue;
            }
            $candidate = trim($candidate);
            if ($candidate === '') {
                continue;
            }
            $externalNumber = $candidate;
            break;
        }

        if ($externalNumber === null) {
            return ResponseLib::sendFail('Missing analysis number/token in payload.', [], 'E_VALIDATE')->withStatus(400);
        }

        error_log('[TShieldWebhook] approved candidates=' . json_encode($externalIds, JSON_UNESCAPED_SLASHES | JSON_UNESCAPED_UNICODE));
        error_log('[TShieldWebhook] approved number=' . $externalNumber);

        $updated = $this->model->approveByExternalIds($externalIds);
        if (!$updated) {
            return ResponseLib::sendFail(
                'No user found for provided analysis number.',
                ['number' => $externalNumber, 'candidates' => $externalIds],
                'E_NOT_FOUND'
            )->withStatus(404);
        }

        return ResponseLib::sendOk([
            'processed' => true,
            'number' => $externalNumber,
        ]);
    }
}