<?php

declare(strict_types=1);

namespace App\Modules\Retribusi\Ingest;

use App\Support\ResponseHelper;
use App\Support\Validator;
use PDOException;
use Psr\Http\Message\ResponseInterface;
use Psr\Http\Message\ServerRequestInterface;

class IngestController
{
    private IngestService $service;

    public function __construct(IngestService $service)
    {
        $this->service = $service;
    }

    public function ingest(
        ServerRequestInterface $request,
        ResponseInterface $response
    ): ResponseInterface {
        $body = $request->getParsedBody();
        
        // Validate request body
        if (!is_array($body)) {
            return ResponseHelper::json(
                $response,
                [
                    'error' => 'validation_error',
                    'fields' => ['body' => 'Invalid JSON body']
                ],
                422
            );
        }

        // Basic format validation
        $errors = Validator::validateIngest($body);
        
        if (!empty($errors)) {
            return ResponseHelper::json(
                $response,
                [
                    'error' => 'validation_error',
                    'fields' => $errors
                ],
                422
            );
        }

        // Get source IP
        $serverParams = $request->getServerParams();
        $sourceIp = $serverParams['REMOTE_ADDR'] ?? '0.0.0.0';

        try {
            // Process ingest with database validation
            $result = $this->service->processIngest($body, $sourceIp);

            if (!$result['valid']) {
                // Not found error
                if ($result['code'] === 'not_found') {
                    return ResponseHelper::json(
                        $response,
                        [
                            'error' => 'not_found',
                            'message' => $result['error']
                        ],
                        404
                    );
                }

                // Other validation errors
                return ResponseHelper::json(
                    $response,
                    [
                        'error' => 'validation_error',
                        'message' => $result['error']
                    ],
                    422
                );
            }

            // Success
            return ResponseHelper::json(
                $response,
                [
                    'success' => true,
                    'data' => ['stored' => true],
                    'timestamp' => time()
                ]
            );

        } catch (PDOException $e) {
            // Database error
            return ResponseHelper::json(
                $response,
                [
                    'error' => 'server_error',
                    'message' => 'Database error occurred'
                ],
                500
            );
        }
    }
}